2004-05-25 14:58:32 +02:00
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/* Swing Modulo Scheduling implementation.
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c-semantics.c, [...]: Update copyright.
* c-semantics.c, cfghooks.c, diagnostic.h, loop-iv.c,
loop-unswitch.c, modulo-sched.c, stor-layout.c, tree-gimple.h,
config/i386/cygwin1.c, doc/cfg.texi, doc/objc.texi: Update
copyright.
From-SVN: r96100
2005-03-08 13:49:01 +01:00
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Copyright (C) 2004, 2005
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2004-05-25 14:58:32 +02:00
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Free Software Foundation, Inc.
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Contributed by Ayal Zaks and Mustafa Hagog <zaks,mustafa@il.ibm.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "toplev.h"
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#include "rtl.h"
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#include "tm_p.h"
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#include "hard-reg-set.h"
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#include "regs.h"
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#include "function.h"
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#include "flags.h"
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#include "insn-config.h"
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#include "insn-attr.h"
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#include "except.h"
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#include "toplev.h"
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#include "recog.h"
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#include "sched-int.h"
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#include "target.h"
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#include "cfglayout.h"
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#include "cfgloop.h"
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#include "cfghooks.h"
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#include "expr.h"
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#include "params.h"
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#include "gcov-io.h"
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#include "df.h"
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#include "ddg.h"
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2004-06-08 23:46:32 +02:00
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#ifdef INSN_SCHEDULING
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2004-05-25 14:58:32 +02:00
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/* This file contains the implementation of the Swing Modulo Scheduler,
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described in the following references:
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[1] J. Llosa, A. Gonzalez, E. Ayguade, M. Valero., and J. Eckhardt.
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Lifetime--sensitive modulo scheduling in a production environment.
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IEEE Trans. on Comps., 50(3), March 2001
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[2] J. Llosa, A. Gonzalez, E. Ayguade, and M. Valero.
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Swing Modulo Scheduling: A Lifetime Sensitive Approach.
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c-common.c, [...]: Fix comment typos.
* c-common.c, calls.c, cfgcleanup.c, cgraph.c, cgraphunit.c,
ddg.c, ddg.h, df.c, df.h, except.c, expr.c, flags.h,
fold-const.c, gcc.c, gimplify.c, haifa-sched.c,
modulo-sched.c, tree-inline.c, tree-into-ssa.c, tree-nested.c,
tree-nrv.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-live.c,
tree-ssa-loop.c, tree-ssa-pre.c, tree-tailcall.c, tree.h: Fix
comment typos. Follow spelling conventions.
From-SVN: r82439
2004-05-30 09:12:58 +02:00
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PACT '96 , pages 80-87, October 1996 (Boston - Massachusetts - USA).
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2004-05-25 14:58:32 +02:00
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The basic structure is:
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1. Build a data-dependence graph (DDG) for each loop.
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2. Use the DDG to order the insns of a loop (not in topological order
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necessarily, but rather) trying to place each insn after all its
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predecessors _or_ after all its successors.
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3. Compute MII: a lower bound on the number of cycles to schedule the loop.
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4. Use the ordering to perform list-scheduling of the loop:
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1. Set II = MII. We will try to schedule the loop within II cycles.
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2. Try to schedule the insns one by one according to the ordering.
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For each insn compute an interval of cycles by considering already-
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scheduled preds and succs (and associated latencies); try to place
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the insn in the cycles of this window checking for potential
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resource conflicts (using the DFA interface).
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Note: this is different from the cycle-scheduling of schedule_insns;
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here the insns are not scheduled monotonically top-down (nor bottom-
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up).
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3. If failed in scheduling all insns - bump II++ and try again, unless
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2004-07-02 02:51:01 +02:00
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II reaches an upper bound MaxII, in which case report failure.
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2004-05-25 14:58:32 +02:00
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5. If we succeeded in scheduling the loop within II cycles, we now
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generate prolog and epilog, decrease the counter of the loop, and
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perform modulo variable expansion for live ranges that span more than
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II cycles (i.e. use register copies to prevent a def from overwriting
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itself before reaching the use).
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*/
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/* This page defines partial-schedule structures and functions for
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modulo scheduling. */
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typedef struct partial_schedule *partial_schedule_ptr;
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typedef struct ps_insn *ps_insn_ptr;
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/* The minimum (absolute) cycle that a node of ps was scheduled in. */
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#define PS_MIN_CYCLE(ps) (((partial_schedule_ptr)(ps))->min_cycle)
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/* The maximum (absolute) cycle that a node of ps was scheduled in. */
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#define PS_MAX_CYCLE(ps) (((partial_schedule_ptr)(ps))->max_cycle)
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/* Perform signed modulo, always returning a non-negative value. */
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#define SMODULO(x,y) ((x) % (y) < 0 ? ((x) % (y) + (y)) : (x) % (y))
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/* The number of different iterations the nodes in ps span, assuming
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the stage boundaries are placed efficiently. */
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#define PS_STAGE_COUNT(ps) ((PS_MAX_CYCLE (ps) - PS_MIN_CYCLE (ps) \
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+ 1 + (ps)->ii - 1) / (ps)->ii)
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/* A single instruction in the partial schedule. */
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struct ps_insn
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{
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/* The corresponding DDG_NODE. */
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ddg_node_ptr node;
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/* The (absolute) cycle in which the PS instruction is scheduled.
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Same as SCHED_TIME (node). */
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int cycle;
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/* The next/prev PS_INSN in the same row. */
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ps_insn_ptr next_in_row,
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prev_in_row;
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/* The number of nodes in the same row that come after this node. */
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int row_rest_count;
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};
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/* Holds the partial schedule as an array of II rows. Each entry of the
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array points to a linked list of PS_INSNs, which represents the
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instructions that are scheduled for that row. */
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struct partial_schedule
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{
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int ii; /* Number of rows in the partial schedule. */
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int history; /* Threshold for conflict checking using DFA. */
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/* rows[i] points to linked list of insns scheduled in row i (0<=i<ii). */
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ps_insn_ptr *rows;
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/* The earliest absolute cycle of an insn in the partial schedule. */
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int min_cycle;
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/* The latest absolute cycle of an insn in the partial schedule. */
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int max_cycle;
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ddg_ptr g; /* The DDG of the insns in the partial schedule. */
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};
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cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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/* We use this to record all the register replacements we do in
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the kernel so we can undo SMS if it is not profitable. */
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struct undo_replace_buff_elem
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{
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rtx insn;
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rtx orig_reg;
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rtx new_reg;
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struct undo_replace_buff_elem *next;
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};
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2004-05-25 14:58:32 +02:00
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cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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partial_schedule_ptr create_partial_schedule (int ii, ddg_ptr, int history);
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void free_partial_schedule (partial_schedule_ptr);
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void reset_partial_schedule (partial_schedule_ptr, int new_ii);
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2004-05-25 14:58:32 +02:00
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void print_partial_schedule (partial_schedule_ptr, FILE *);
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cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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static int kernel_number_of_cycles (rtx first_insn, rtx last_insn);
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2004-11-08 20:45:20 +01:00
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static ps_insn_ptr ps_add_node_check_conflicts (partial_schedule_ptr,
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ddg_node_ptr node, int cycle,
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sbitmap must_precede,
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sbitmap must_follow);
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static void rotate_partial_schedule (partial_schedule_ptr, int);
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cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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void set_row_column_for_ps (partial_schedule_ptr);
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static bool ps_unschedule_node (partial_schedule_ptr, ddg_node_ptr );
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2004-05-25 14:58:32 +02:00
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c-common.c, [...]: Fix comment typos.
* c-common.c, calls.c, cfgcleanup.c, cgraph.c, cgraphunit.c,
ddg.c, ddg.h, df.c, df.h, except.c, expr.c, flags.h,
fold-const.c, gcc.c, gimplify.c, haifa-sched.c,
modulo-sched.c, tree-inline.c, tree-into-ssa.c, tree-nested.c,
tree-nrv.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-live.c,
tree-ssa-loop.c, tree-ssa-pre.c, tree-tailcall.c, tree.h: Fix
comment typos. Follow spelling conventions.
From-SVN: r82439
2004-05-30 09:12:58 +02:00
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/* This page defines constants and structures for the modulo scheduling
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2004-05-25 14:58:32 +02:00
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driver. */
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/* As in haifa-sched.c: */
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/* issue_rate is the number of insns that can be scheduled in the same
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machine cycle. It can be defined in the config/mach/mach.h file,
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otherwise we set it to 1. */
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static int issue_rate;
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/* For printing statistics. */
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static FILE *stats_file;
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static int sms_order_nodes (ddg_ptr, int, int * result);
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static void set_node_sched_params (ddg_ptr);
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static partial_schedule_ptr sms_schedule_by_order (ddg_ptr, int, int,
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int *, FILE*);
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static void permute_partial_schedule (partial_schedule_ptr ps, rtx last);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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static void generate_prolog_epilog (partial_schedule_ptr ,struct loop * loop, rtx);
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2004-05-25 14:58:32 +02:00
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static void duplicate_insns_of_cycles (partial_schedule_ptr ps,
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int from_stage, int to_stage,
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int is_prolog);
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#define SCHED_ASAP(x) (((node_sched_params_ptr)(x)->aux.info)->asap)
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#define SCHED_TIME(x) (((node_sched_params_ptr)(x)->aux.info)->time)
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#define SCHED_FIRST_REG_MOVE(x) \
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(((node_sched_params_ptr)(x)->aux.info)->first_reg_move)
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#define SCHED_NREG_MOVES(x) \
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(((node_sched_params_ptr)(x)->aux.info)->nreg_moves)
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#define SCHED_ROW(x) (((node_sched_params_ptr)(x)->aux.info)->row)
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#define SCHED_STAGE(x) (((node_sched_params_ptr)(x)->aux.info)->stage)
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#define SCHED_COLUMN(x) (((node_sched_params_ptr)(x)->aux.info)->column)
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/* The scheduling parameters held for each node. */
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typedef struct node_sched_params
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{
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int asap; /* A lower-bound on the absolute scheduling cycle. */
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int time; /* The absolute scheduling cycle (time >= asap). */
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/* The following field (first_reg_move) is a pointer to the first
|
|
|
|
|
register-move instruction added to handle the modulo-variable-expansion
|
|
|
|
|
of the register defined by this node. This register-move copies the
|
|
|
|
|
original register defined by the node. */
|
|
|
|
|
rtx first_reg_move;
|
|
|
|
|
|
c-common.c, [...]: Fix comment typos.
* c-common.c, calls.c, cfgcleanup.c, cgraph.c, cgraphunit.c,
ddg.c, ddg.h, df.c, df.h, except.c, expr.c, flags.h,
fold-const.c, gcc.c, gimplify.c, haifa-sched.c,
modulo-sched.c, tree-inline.c, tree-into-ssa.c, tree-nested.c,
tree-nrv.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-live.c,
tree-ssa-loop.c, tree-ssa-pre.c, tree-tailcall.c, tree.h: Fix
comment typos. Follow spelling conventions.
From-SVN: r82439
2004-05-30 09:12:58 +02:00
|
|
|
|
/* The number of register-move instructions added, immediately preceding
|
2004-05-25 14:58:32 +02:00
|
|
|
|
first_reg_move. */
|
|
|
|
|
int nreg_moves;
|
|
|
|
|
|
|
|
|
|
int row; /* Holds time % ii. */
|
|
|
|
|
int stage; /* Holds time / ii. */
|
|
|
|
|
|
|
|
|
|
/* The column of a node inside the ps. If nodes u, v are on the same row,
|
c-common.c, [...]: Fix comment typos.
* c-common.c, calls.c, cfgcleanup.c, cgraph.c, cgraphunit.c,
ddg.c, ddg.h, df.c, df.h, except.c, expr.c, flags.h,
fold-const.c, gcc.c, gimplify.c, haifa-sched.c,
modulo-sched.c, tree-inline.c, tree-into-ssa.c, tree-nested.c,
tree-nrv.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-live.c,
tree-ssa-loop.c, tree-ssa-pre.c, tree-tailcall.c, tree.h: Fix
comment typos. Follow spelling conventions.
From-SVN: r82439
2004-05-30 09:12:58 +02:00
|
|
|
|
u will precede v if column (u) < column (v). */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
int column;
|
|
|
|
|
} *node_sched_params_ptr;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* The following three functions are copied from the current scheduler
|
c-typeck.c, [...]: Fix comment typos.
* c-typeck.c, cfgexpand.c, ddg.c, ddg.h, df.c, fold-const.c,
gcov.c, gimplify.c, modulo-sched.c, passes.c, tree-cfg.c,
tree-mudflap.c, tree-nrv.c, tree-outof-ssa.c, tree-ssa-dom.c,
tree-ssa-dse.c, tree-ssa-operands.c, tree-ssa-pre.c,
tree-tailcall.c: Fix comment typos. Follow spelling
conventions.
From-SVN: r83703
2004-06-26 07:03:55 +02:00
|
|
|
|
code in order to use sched_analyze() for computing the dependencies.
|
2004-05-25 14:58:32 +02:00
|
|
|
|
They are used when initializing the sched_info structure. */
|
|
|
|
|
static const char *
|
|
|
|
|
sms_print_insn (rtx insn, int aligned ATTRIBUTE_UNUSED)
|
|
|
|
|
{
|
|
|
|
|
static char tmp[80];
|
|
|
|
|
|
|
|
|
|
sprintf (tmp, "i%4d", INSN_UID (insn));
|
|
|
|
|
return tmp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
contributes_to_priority (rtx next, rtx insn)
|
|
|
|
|
{
|
|
|
|
|
return BLOCK_NUM (next) == BLOCK_NUM (insn);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
compute_jump_reg_dependencies (rtx insn ATTRIBUTE_UNUSED,
|
|
|
|
|
regset cond_exec ATTRIBUTE_UNUSED,
|
|
|
|
|
regset used ATTRIBUTE_UNUSED,
|
|
|
|
|
regset set ATTRIBUTE_UNUSED)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct sched_info sms_sched_info =
|
|
|
|
|
{
|
|
|
|
|
NULL,
|
|
|
|
|
NULL,
|
|
|
|
|
NULL,
|
|
|
|
|
NULL,
|
|
|
|
|
NULL,
|
|
|
|
|
sms_print_insn,
|
|
|
|
|
contributes_to_priority,
|
|
|
|
|
compute_jump_reg_dependencies,
|
|
|
|
|
NULL, NULL,
|
|
|
|
|
NULL, NULL,
|
|
|
|
|
0, 0, 0
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Return the register decremented and tested or zero if it is not a decrement
|
|
|
|
|
and branch jump insn (similar to doloop_condition_get). */
|
|
|
|
|
static rtx
|
|
|
|
|
doloop_register_get (rtx insn, rtx *comp)
|
|
|
|
|
{
|
|
|
|
|
rtx pattern, cmp, inc, reg, condition;
|
|
|
|
|
|
alias.c (nonlocal_mentioned_p, [...]): Use, LABEL_P, JUMP_P, CALL_P, NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
2004-07-08 Jerry Quinn <jlquinn@optonline.net>
* alias.c (nonlocal_mentioned_p, nonlocal_referenced_p,
nonlocal_set_p, init_alias_analysis): Use, LABEL_P, JUMP_P, CALL_P,
NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
* bb-reorder.c (mark_bb_for_unlikely_executed_section,
add_labels_and_missing_jumps, find_jump_block,
fix_crossing_unconditional_branches, add_reg_crossing_jump_notes):
Likewise.
* bt-load.c (btr_referenced_p, compute_defs_uses_and_gen,
link_btr_uses, move_btr_def): Likewise.
* builtins.c (expand_builtin_longjmp, expand_builtin_nonlocal_goto,
expand_builtin_expect_jump): Likewise.
* caller-save.c (save_call_clobbered_regs, insert_one_insn): Likewise.
* calls.c (expand_call, emit_library_call_value_1): Likewise.
* cfganal.c (forwarder_block_p): Likewise.
* cfgbuild.c (inside_basic_block_p, count_basic_blocks,
make_label_edge, rtl_make_eh_edge, make_edges, find_basic_blocks_1,
find_bb_boundaries): Likewise.
* cfgcleanup.c (try_simplify_condjump, try_forward_edges,
merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, insns_match_p,
flow_find_cross_jump, outgoing_edges_match, try_crossjump_to_edge,
try_optimize_cfg): Likewise.
* cfgexpand.c (expand_block, construct_exit_block): Likewise.
* cfglayout.c (skip_insns_after_block, label_for_bb,
record_effective_endpoints, insn_locators_initialize,
fixup_reorder_chain, update_unlikely_executed_notes): Likewise.
* cfgmainloop.c (create_loop_notes): Likewise.
* cfgrtl.c (delete_insn, delete_insn_chain,
create_basic_block_structure, rtl_delete_block, free_bb_for_insn,
update_bb_for_insn, rtl_merge_blocks, rtl_can_merge_blocks,
block_label, try_redirect_by_replacing_jump, last_loop_beg_note,
redirect_branch_edge, force_nonfallthru_and_redirect,
rtl_tidy_fallthru_edge, back_edge_of_syntactic_loop_p,
rtl_split_edge, commit_one_edge_insertion, print_rtl_with_bb,
update_br_prob_note, rtl_verify_flow_info_1, rtl_verify_flow_info,
purge_dead_edges, cfg_layout_redirect_edge_and_branch,
cfg_layout_delete_block, cfg_layout_can_merge_blocks_p,
cfg_layout_merge_blocks, rtl_block_ends_with_call_p,
need_fake_edge_p, rtl_flow_call_edges_add): Likewise.
* combine.c (combine_instructions, can_combine_p, try_combine,
find_split_point, record_dead_and_set_regs, reg_dead_at_p,
distribute_notes, distribute_links, insn_cuid): Likewise.
* cse.c (fold_rtx, cse_insn, cse_around_loop,
invalidate_skipped_block, cse_set_around_loop,
cse_end_of_basic_block, cse_main, cse_basic_block,
cse_condition_code_reg): Likewise.
* cselib.c (cselib_process_insn): Likewise.
* ddg.c (create_ddg): Likewise.
* df.c (df_insn_refs_record, df_bb_rd_local_compute, df_insns_modify):
Likewise.
* dwarf2out.c (dwarf2out_stack_adjust, dwarf2out_frame_debug,
gen_label_die, dwarf2out_var_location): Likewise.
* emit-rtl.c (get_first_nonnote_insn, get_last_nonnote_insn,
next_insn, previous_insn, next_nonnote_insn, prev_nonnote_insn,
last_call_insn, active_insn_p, next_label, prev_label,
link_cc0_insns, next_cc0_user, try_split, add_insn_after,
add_insn_before, remove_insn, add_function_usage_to,
reorder_insns, find_line_note, remove_unnecessary_notes,
emit_insn_after_1, classify_insn): Likewise.
* except.c (convert_from_eh_region_ranges_1, emit_to_new_bb_before,
connect_post_landing_pads, sjlj_mark_call_sites,
sjlj_emit_function_enter, sjlj_emit_function_exit, reachable_handlers,
can_throw_internal, can_throw_external, set_nothrow_function_flags,
convert_to_eh_region_ranges): Likewise.
* explow.c (optimize_save_area_alloca): Likewise.
* expr.c (expand_expr_real): Likewise.
* final.c (insn_current_reference_address, compute_alignments,
shorten_branches, final, scan_ahead_for_unlikely_executed_note,
final_scan_insn, output_asm_label, leaf_function_p): Likewise.
* flow.c (first_insn_after_basic_block_note, delete_dead_jumptables,
propagate_block_delete_insn, propagate_one_insn,
init_propagate_block_info, propagate_block, libcall_dead_p,
mark_set_1, attempt_auto_inc, find_auto_inc, try_pre_increment):
Likewise.
* function.c (instantiate_virtual_regs, reorder_blocks_1,
expand_function_start, expand_function_end, contains,
thread_prologue_and_epilogue_insns,
reposition_prologue_and_epilogue_notes): Likewise.
* gcse.c (constprop_register, bypass_conditional_jumps,
insert_insn_end_bb, gcse_after_reload): Likewise.
* genemit.c (gen_expand, gen_split): Likewise.
* genpeep.c (gen_peephole, main): Likewise.
* global.c (build_insn_chain): Likewise.
* graph.c (node_data, print_rtl_graph_with_bb): Likewise.
* haifa-sched.c (unlink_other_notes, unlink_line_notes,
get_block_head_tail, no_real_insns_p, rm_line_notes, save_line_notes,
restore_line_notes, rm_redundant_line_notes, rm_other_notes,
ok_for_early_queue_removal, set_priorities, sched_init): Likewise.
* ifcvt.c (count_bb_insns, first_active_insn, last_active_insn,
cond_exec_process_insns, end_ifcvt_sequence, noce_process_if_block,
merge_if_block, block_jumps_and_fallthru_p, find_if_block,
dead_or_predicable): Likewise.
* integrate.c (try_constants): Likewise.
* jump.c (rebuild_jump_labels, cleanup_barriers,
purge_line_number_notes, init_label_info, mark_all_labels,
squeeze_notes, get_label_before, get_label_after,
reversed_comparison_code_parts, simplejump_p, pc_set,
returnjump_p, onlyjump_p, follow_jumps, mark_jump_label,
delete_barrier, delete_prior_computation, delete_computation,
delete_related_insns, delete_for_peephole, redirect_jump):
Likewise.
* lcm.c (optimize_mode_switching): Likewise.
* local-alloc.c (validate_equiv_mem, update_equiv_regs, block_alloc):
Likewise.
* loop-doloop.c (doloop_valid_p, doloop_optimize): Likewise.
* loop-invariant.c (find_exits, find_invariants_bb): Likewise.
* loop-iv.c (simplify_using_assignment): Likewise.
* loop.c (compute_luids, loop_optimize, scan_loop, libcall_other_reg,
libcall_benefit, skip_consec_insns, move_movables, prescan_loop,
find_and_verify_loops, labels_in_range_p, for_each_insn_in_loop,
loop_bivs_init_find, strength_reduce, check_insn_for_bivs,
check_insn_for_givs, check_final_value, update_giv_derive,
basic_induction_var, product_cheap_p, check_dbra_loop,
loop_insn_first_p, last_use_this_basic_block,
canonicalize_condition, get_condition, loop_regs_scan, load_mems,
try_copy_prop, LOOP_BLOCK_NUM, loop_dump_aux): Likewise.
* modulo-sched.c (doloop_register_get, find_line_note, sms_schedule,
sms_schedule_by_order): Likewise.
* optabs.c (emit_no_conflict_block, emit_libcall_block): Likewise.
* postreload.c (reload_cse_simplify_operands, reload_combine,
reload_cse_move2add): Likewise.
* predict.c (can_predict_insn_p, estimate_probability,
expected_value_to_br_prob, process_note_predictions): Likewise.
* print-rtl.c (print_rtx, print_rtl, print_rtl_single): Likewise.
* profile.c (branch_prob): Likewise.
* ra-build.c (live_out_1, livethrough_conflicts_bb,
detect_webs_set_in_cond_jump): Likewise.
* ra-debug.c (ra_print_rtx_object, ra_debug_insns,
ra_print_rtl_with_bb): Likewise.
* ra-rewrite.c (insert_stores, rewrite_program2): Likewise.
* recog.c (next_insn_tests_no_inequality, find_single_use,
split_all_insns, peephole2_optimize, if_test_bypass_p): Likewise.
* reg-stack.c (next_flags_user, record_label_references,
emit_swap_insn, swap_rtx_condition, subst_stack_regs,
compensate_edge, convert_regs_1): Likewise.
* regclass.c (scan_one_insn): Likewise.
* regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
regmove_optimize, fixup_match_1, single_set_for_csa,
combine_stack_adjustments_for_block): Likewise.
* regrename.c (build_def_use, copyprop_hardreg_forward_1): Likewise.
* reload.c (find_reloads, find_reloads_address_1, subst_reloads,
find_equiv_reg): Likewise.
* reload1.c (reload, calculate_needs_all_insns, set_label_offsets,
reload_as_needed, emit_input_reload_insns, do_output_reload,
delete_output_reload, delete_address_reloads_1, fixup_abnormal_edges):
Likewise.
* reorg.c (find_end_label, emit_delay_sequence,
delete_from_delay_slot, delete_scheduled_jump, optimize_skip,
get_jump_flags, rare_destination, mostly_true_jump,
try_merge_delay_insns, redundant_insn, own_thread_p,
fill_simple_delay_slots, fill_slots_from_thread,
fill_eager_delay_slots, relax_delay_slots, make_return_insns,
dbr_schedule): Likewise.
* resource.c (find_basic_block, next_insn_no_annul,
find_dead_or_set_registers, mark_target_live_regs): Likewise.
* rtl.h (RTX_PREV): Likewise.
* rtlanal.c (global_reg_mentioned_p, no_labels_between_p,
no_jumps_between_p, reg_used_between_p, reg_referenced_between_p,
reg_set_p, find_last_value, dead_or_set_regno_p, find_reg_fusage,
find_regno_fusage, pure_call_p, replace_label, rtx_referenced_p_1,
tablejump_p, computed_jump_p, insns_safe_to_move_p,
find_first_parameter_load, can_hoist_insn_p): Likewise.
* sched-deps.c (get_condition, add_dependence, sched_analyze_2,
sched_analyze_insn, sched_analyze, add_forward_dependence): Likewise.
* sched-ebb.c (fix_basic_block_boundaries, add_deps_for_risky_insns,
schedule_ebbs): Likewise.
* sched-rgn.c (is_cfg_nonregular, find_conditional_protection,
is_conditionally_protected, can_schedule_ready_p,
add_branch_dependences, debug_dependencies): Likewise.
* stmt.c (emit_nop, expand_start_case, emit_jump_if_reachable):
Likewise.
* unroll.c (unroll_loop, copy_loop_body, back_branch_in_range_p,
reg_dead_after_loop, loop_find_equiv_value, loop_iterations,
set_dominates_use, ujump_to_loop_cont): Likewise.
* var-tracking.c (prologue_stack_adjust, vt_initialize): Likewise.
* varasm.c (output_constant_pool_1): Likewise.
From-SVN: r84341
2004-07-09 05:29:35 +02:00
|
|
|
|
if (!JUMP_P (insn))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
return NULL_RTX;
|
|
|
|
|
pattern = PATTERN (insn);
|
|
|
|
|
|
|
|
|
|
/* The canonical doloop pattern we expect is:
|
|
|
|
|
|
|
|
|
|
(parallel [(set (pc) (if_then_else (condition)
|
|
|
|
|
(label_ref (label))
|
|
|
|
|
(pc)))
|
|
|
|
|
(set (reg) (plus (reg) (const_int -1)))
|
|
|
|
|
(additional clobbers and uses)])
|
|
|
|
|
|
|
|
|
|
where condition is further restricted to be
|
|
|
|
|
(ne (reg) (const_int 1)). */
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (pattern) != PARALLEL)
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
|
|
|
|
|
cmp = XVECEXP (pattern, 0, 0);
|
|
|
|
|
inc = XVECEXP (pattern, 0, 1);
|
|
|
|
|
/* Return the compare rtx. */
|
|
|
|
|
*comp = cmp;
|
|
|
|
|
|
|
|
|
|
/* Check for (set (reg) (something)). */
|
|
|
|
|
if (GET_CODE (inc) != SET || ! REG_P (SET_DEST (inc)))
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
|
|
|
|
|
/* Extract loop counter register. */
|
|
|
|
|
reg = SET_DEST (inc);
|
|
|
|
|
|
|
|
|
|
/* Check if something = (plus (reg) (const_int -1)). */
|
|
|
|
|
if (GET_CODE (SET_SRC (inc)) != PLUS
|
|
|
|
|
|| XEXP (SET_SRC (inc), 0) != reg
|
|
|
|
|
|| XEXP (SET_SRC (inc), 1) != constm1_rtx)
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
|
|
|
|
|
/* Check for (set (pc) (if_then_else (condition)
|
|
|
|
|
(label_ref (label))
|
|
|
|
|
(pc))). */
|
|
|
|
|
if (GET_CODE (cmp) != SET
|
|
|
|
|
|| SET_DEST (cmp) != pc_rtx
|
|
|
|
|
|| GET_CODE (SET_SRC (cmp)) != IF_THEN_ELSE
|
|
|
|
|
|| GET_CODE (XEXP (SET_SRC (cmp), 1)) != LABEL_REF
|
|
|
|
|
|| XEXP (SET_SRC (cmp), 2) != pc_rtx)
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
|
|
|
|
|
/* Extract loop termination condition. */
|
|
|
|
|
condition = XEXP (SET_SRC (cmp), 0);
|
|
|
|
|
|
|
|
|
|
/* Check if condition = (ne (reg) (const_int 1)), which is more
|
|
|
|
|
restrictive than the check in doloop_condition_get:
|
|
|
|
|
if ((GET_CODE (condition) != GE && GET_CODE (condition) != NE)
|
|
|
|
|
|| GET_CODE (XEXP (condition, 1)) != CONST_INT). */
|
|
|
|
|
if (GET_CODE (condition) != NE
|
|
|
|
|
|| XEXP (condition, 1) != const1_rtx)
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
|
|
|
|
|
if (XEXP (condition, 0) == reg)
|
|
|
|
|
return reg;
|
|
|
|
|
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Check if COUNT_REG is set to a constant in the PRE_HEADER block, so
|
|
|
|
|
that the number of iterations is a compile-time constant. If so,
|
|
|
|
|
return the rtx that sets COUNT_REG to a constant, and set COUNT to
|
|
|
|
|
this constant. Otherwise return 0. */
|
|
|
|
|
static rtx
|
|
|
|
|
const_iteration_count (rtx count_reg, basic_block pre_header,
|
|
|
|
|
HOST_WIDEST_INT * count)
|
|
|
|
|
{
|
|
|
|
|
rtx insn;
|
|
|
|
|
rtx head, tail;
|
2005-03-21 19:49:29 +01:00
|
|
|
|
|
|
|
|
|
if (! pre_header)
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
get_block_head_tail (pre_header->index, &head, &tail);
|
|
|
|
|
|
|
|
|
|
for (insn = tail; insn != PREV_INSN (head); insn = PREV_INSN (insn))
|
|
|
|
|
if (INSN_P (insn) && single_set (insn) &&
|
|
|
|
|
rtx_equal_p (count_reg, SET_DEST (single_set (insn))))
|
|
|
|
|
{
|
|
|
|
|
rtx pat = single_set (insn);
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (SET_SRC (pat)) == CONST_INT)
|
|
|
|
|
{
|
|
|
|
|
*count = INTVAL (SET_SRC (pat));
|
|
|
|
|
return insn;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return NULL_RTX;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* A very simple resource-based lower bound on the initiation interval.
|
|
|
|
|
??? Improve the accuracy of this bound by considering the
|
|
|
|
|
utilization of various units. */
|
|
|
|
|
static int
|
|
|
|
|
res_MII (ddg_ptr g)
|
|
|
|
|
{
|
|
|
|
|
return (g->num_nodes / issue_rate);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Points to the array that contains the sched data for each node. */
|
|
|
|
|
static node_sched_params_ptr node_sched_params;
|
|
|
|
|
|
|
|
|
|
/* Allocate sched_params for each node and initialize it. Assumes that
|
|
|
|
|
the aux field of each node contain the asap bound (computed earlier),
|
|
|
|
|
and copies it into the sched_params field. */
|
|
|
|
|
static void
|
|
|
|
|
set_node_sched_params (ddg_ptr g)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/* Allocate for each node in the DDG a place to hold the "sched_data". */
|
|
|
|
|
/* Initialize ASAP/ALAP/HIGHT to zero. */
|
|
|
|
|
node_sched_params = (node_sched_params_ptr)
|
|
|
|
|
xcalloc (g->num_nodes,
|
|
|
|
|
sizeof (struct node_sched_params));
|
|
|
|
|
|
|
|
|
|
/* Set the pointer of the general data of the node to point to the
|
c-typeck.c, [...]: Fix comment typos.
* c-typeck.c, cfgexpand.c, ddg.c, ddg.h, df.c, fold-const.c,
gcov.c, gimplify.c, modulo-sched.c, passes.c, tree-cfg.c,
tree-mudflap.c, tree-nrv.c, tree-outof-ssa.c, tree-ssa-dom.c,
tree-ssa-dse.c, tree-ssa-operands.c, tree-ssa-pre.c,
tree-tailcall.c: Fix comment typos. Follow spelling
conventions.
From-SVN: r83703
2004-06-26 07:03:55 +02:00
|
|
|
|
appropriate sched_params structure. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
for (i = 0; i < g->num_nodes; i++)
|
|
|
|
|
{
|
|
|
|
|
/* Watch out for aliasing problems? */
|
|
|
|
|
node_sched_params[i].asap = g->nodes[i].aux.count;
|
|
|
|
|
g->nodes[i].aux.info = &node_sched_params[i];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
print_node_sched_params (FILE * dump_file, int num_nodes)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
2005-03-21 19:49:29 +01:00
|
|
|
|
if (! dump_file)
|
|
|
|
|
return;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
for (i = 0; i < num_nodes; i++)
|
|
|
|
|
{
|
|
|
|
|
node_sched_params_ptr nsp = &node_sched_params[i];
|
|
|
|
|
rtx reg_move = nsp->first_reg_move;
|
|
|
|
|
int j;
|
|
|
|
|
|
|
|
|
|
fprintf (dump_file, "Node %d:\n", i);
|
|
|
|
|
fprintf (dump_file, " asap = %d:\n", nsp->asap);
|
|
|
|
|
fprintf (dump_file, " time = %d:\n", nsp->time);
|
|
|
|
|
fprintf (dump_file, " nreg_moves = %d:\n", nsp->nreg_moves);
|
|
|
|
|
for (j = 0; j < nsp->nreg_moves; j++)
|
|
|
|
|
{
|
|
|
|
|
fprintf (dump_file, " reg_move = ");
|
|
|
|
|
print_rtl_single (dump_file, reg_move);
|
|
|
|
|
reg_move = PREV_INSN (reg_move);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Calculate an upper bound for II. SMS should not schedule the loop if it
|
|
|
|
|
requires more cycles than this bound. Currently set to the sum of the
|
|
|
|
|
longest latency edge for each node. Reset based on experiments. */
|
|
|
|
|
static int
|
|
|
|
|
calculate_maxii (ddg_ptr g)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
int maxii = 0;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < g->num_nodes; i++)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u = &g->nodes[i];
|
|
|
|
|
ddg_edge_ptr e;
|
|
|
|
|
int max_edge_latency = 0;
|
|
|
|
|
|
|
|
|
|
for (e = u->out; e; e = e->next_out)
|
|
|
|
|
max_edge_latency = MAX (max_edge_latency, e->latency);
|
|
|
|
|
|
|
|
|
|
maxii += max_edge_latency;
|
|
|
|
|
}
|
|
|
|
|
return maxii;
|
|
|
|
|
}
|
|
|
|
|
|
2005-03-21 19:49:29 +01:00
|
|
|
|
/*
|
|
|
|
|
Breaking intra-loop register anti-dependences:
|
|
|
|
|
Each intra-loop register anti-dependence implies a cross-iteration true
|
|
|
|
|
dependence of distance 1. Therefore, we can remove such false dependencies
|
|
|
|
|
and figure out if the partial schedule broke them by checking if (for a
|
|
|
|
|
true-dependence of distance 1): SCHED_TIME (def) < SCHED_TIME (use) and
|
|
|
|
|
if so generate a register move. The number of such moves is equal to:
|
|
|
|
|
SCHED_TIME (use) - SCHED_TIME (def) { 0 broken
|
cgraphunit.c, [...]: Fix comment typos.
* cgraphunit.c, dbxout.c, flow.c, gcse.c, gimplify.c,
lambda-code.c, loop.c, machmode.def, mips-tfile.c,
modulo-sched.c, passes.c, postreload-gcse.c, tree-eh.c,
tree-ssa-ccp.c, varasm.c, config/frv/frv.c, config/frv/frv.h,
config/frv/frv.md, config/i386/i386.c, config/i386/i386.h,
config/i386/i386.md, config/rs6000/predicates.md,
config/rs6000/rs6000.c, config/s390/fixdfdi.h,
config/s390/s390.c, config/stormy16/stormy16.c,
config/stormy16/stormy16.md, config/vax/vax.md: Fix comment
typos.
From-SVN: r97362
2005-04-01 05:42:55 +02:00
|
|
|
|
nreg_moves = ----------------------------------- + 1 - { dependence.
|
2005-03-21 19:49:29 +01:00
|
|
|
|
ii { 1 if not.
|
|
|
|
|
*/
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
static struct undo_replace_buff_elem *
|
2004-05-25 14:58:32 +02:00
|
|
|
|
generate_reg_moves (partial_schedule_ptr ps)
|
|
|
|
|
{
|
|
|
|
|
ddg_ptr g = ps->g;
|
|
|
|
|
int ii = ps->ii;
|
|
|
|
|
int i;
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
struct undo_replace_buff_elem *reg_move_replaces = NULL;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < g->num_nodes; i++)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u = &g->nodes[i];
|
|
|
|
|
ddg_edge_ptr e;
|
|
|
|
|
int nreg_moves = 0, i_reg_move;
|
|
|
|
|
sbitmap *uses_of_defs;
|
|
|
|
|
rtx last_reg_move;
|
|
|
|
|
rtx prev_reg, old_reg;
|
|
|
|
|
|
|
|
|
|
/* Compute the number of reg_moves needed for u, by looking at life
|
|
|
|
|
ranges started at u (excluding self-loops). */
|
|
|
|
|
for (e = u->out; e; e = e->next_out)
|
|
|
|
|
if (e->type == TRUE_DEP && e->dest != e->src)
|
|
|
|
|
{
|
|
|
|
|
int nreg_moves4e = (SCHED_TIME (e->dest) - SCHED_TIME (e->src)) / ii;
|
|
|
|
|
|
2005-03-21 19:49:29 +01:00
|
|
|
|
if (e->distance == 1)
|
|
|
|
|
nreg_moves4e = (SCHED_TIME (e->dest) - SCHED_TIME (e->src) + ii) / ii;
|
|
|
|
|
|
c-common.c, [...]: Fix comment typos.
* c-common.c, calls.c, cfgcleanup.c, cgraph.c, cgraphunit.c,
ddg.c, ddg.h, df.c, df.h, except.c, expr.c, flags.h,
fold-const.c, gcc.c, gimplify.c, haifa-sched.c,
modulo-sched.c, tree-inline.c, tree-into-ssa.c, tree-nested.c,
tree-nrv.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-live.c,
tree-ssa-loop.c, tree-ssa-pre.c, tree-tailcall.c, tree.h: Fix
comment typos. Follow spelling conventions.
From-SVN: r82439
2004-05-30 09:12:58 +02:00
|
|
|
|
/* If dest precedes src in the schedule of the kernel, then dest
|
2004-05-25 14:58:32 +02:00
|
|
|
|
will read before src writes and we can save one reg_copy. */
|
|
|
|
|
if (SCHED_ROW (e->dest) == SCHED_ROW (e->src)
|
|
|
|
|
&& SCHED_COLUMN (e->dest) < SCHED_COLUMN (e->src))
|
|
|
|
|
nreg_moves4e--;
|
|
|
|
|
|
|
|
|
|
nreg_moves = MAX (nreg_moves, nreg_moves4e);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (nreg_moves == 0)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* Every use of the register defined by node may require a different
|
|
|
|
|
copy of this register, depending on the time the use is scheduled.
|
|
|
|
|
Set a bitmap vector, telling which nodes use each copy of this
|
|
|
|
|
register. */
|
|
|
|
|
uses_of_defs = sbitmap_vector_alloc (nreg_moves, g->num_nodes);
|
|
|
|
|
sbitmap_vector_zero (uses_of_defs, nreg_moves);
|
|
|
|
|
for (e = u->out; e; e = e->next_out)
|
|
|
|
|
if (e->type == TRUE_DEP && e->dest != e->src)
|
|
|
|
|
{
|
|
|
|
|
int dest_copy = (SCHED_TIME (e->dest) - SCHED_TIME (e->src)) / ii;
|
|
|
|
|
|
2005-03-21 19:49:29 +01:00
|
|
|
|
if (e->distance == 1)
|
|
|
|
|
dest_copy = (SCHED_TIME (e->dest) - SCHED_TIME (e->src) + ii) / ii;
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
if (SCHED_ROW (e->dest) == SCHED_ROW (e->src)
|
|
|
|
|
&& SCHED_COLUMN (e->dest) < SCHED_COLUMN (e->src))
|
|
|
|
|
dest_copy--;
|
|
|
|
|
|
|
|
|
|
if (dest_copy)
|
|
|
|
|
SET_BIT (uses_of_defs[dest_copy - 1], e->dest->cuid);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now generate the reg_moves, attaching relevant uses to them. */
|
|
|
|
|
SCHED_NREG_MOVES (u) = nreg_moves;
|
|
|
|
|
old_reg = prev_reg = copy_rtx (SET_DEST (single_set (u->insn)));
|
|
|
|
|
last_reg_move = u->insn;
|
|
|
|
|
|
|
|
|
|
for (i_reg_move = 0; i_reg_move < nreg_moves; i_reg_move++)
|
|
|
|
|
{
|
|
|
|
|
int i_use;
|
|
|
|
|
rtx new_reg = gen_reg_rtx (GET_MODE (prev_reg));
|
|
|
|
|
rtx reg_move = gen_move_insn (new_reg, prev_reg);
|
|
|
|
|
|
|
|
|
|
add_insn_before (reg_move, last_reg_move);
|
|
|
|
|
last_reg_move = reg_move;
|
|
|
|
|
|
|
|
|
|
if (!SCHED_FIRST_REG_MOVE (u))
|
|
|
|
|
SCHED_FIRST_REG_MOVE (u) = reg_move;
|
|
|
|
|
|
|
|
|
|
EXECUTE_IF_SET_IN_SBITMAP (uses_of_defs[i_reg_move], 0, i_use,
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
{
|
|
|
|
|
struct undo_replace_buff_elem *rep;
|
|
|
|
|
|
|
|
|
|
rep = (struct undo_replace_buff_elem *)
|
|
|
|
|
xcalloc (1, sizeof (struct undo_replace_buff_elem));
|
|
|
|
|
rep->insn = g->nodes[i_use].insn;
|
|
|
|
|
rep->orig_reg = old_reg;
|
|
|
|
|
rep->new_reg = new_reg;
|
|
|
|
|
|
|
|
|
|
if (! reg_move_replaces)
|
|
|
|
|
reg_move_replaces = rep;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
rep->next = reg_move_replaces;
|
|
|
|
|
reg_move_replaces = rep;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
replace_rtx (g->nodes[i_use].insn, old_reg, new_reg);
|
|
|
|
|
});
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
prev_reg = new_reg;
|
|
|
|
|
}
|
|
|
|
|
}
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
return reg_move_replaces;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We call this when we want to undo the SMS schedule for a given loop.
|
|
|
|
|
One of the things that we do is to delete the register moves generated
|
|
|
|
|
for the sake of SMS; this function deletes the register move instructions
|
|
|
|
|
recorded in the undo buffer. */
|
|
|
|
|
static void
|
|
|
|
|
undo_generate_reg_moves (partial_schedule_ptr ps,
|
|
|
|
|
struct undo_replace_buff_elem *reg_move_replaces)
|
|
|
|
|
{
|
|
|
|
|
int i,j;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < ps->g->num_nodes; i++)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u = &ps->g->nodes[i];
|
|
|
|
|
rtx prev;
|
|
|
|
|
rtx crr = SCHED_FIRST_REG_MOVE (u);
|
|
|
|
|
|
|
|
|
|
for (j = 0; j < SCHED_NREG_MOVES (u); j++)
|
|
|
|
|
{
|
|
|
|
|
prev = PREV_INSN (crr);
|
|
|
|
|
delete_insn (crr);
|
|
|
|
|
crr = prev;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while (reg_move_replaces)
|
|
|
|
|
{
|
|
|
|
|
struct undo_replace_buff_elem *rep = reg_move_replaces;
|
|
|
|
|
|
|
|
|
|
reg_move_replaces = reg_move_replaces->next;
|
|
|
|
|
replace_rtx (rep->insn, rep->new_reg, rep->orig_reg);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Free memory allocated for the undo buffer. */
|
|
|
|
|
static void
|
|
|
|
|
free_undo_replace_buff (struct undo_replace_buff_elem *reg_move_replaces)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
while (reg_move_replaces)
|
|
|
|
|
{
|
|
|
|
|
struct undo_replace_buff_elem *rep = reg_move_replaces;
|
|
|
|
|
|
|
|
|
|
reg_move_replaces = reg_move_replaces->next;
|
|
|
|
|
free (rep);
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Bump the SCHED_TIMEs of all nodes to start from zero. Set the values
|
|
|
|
|
of SCHED_ROW and SCHED_STAGE. */
|
|
|
|
|
static void
|
|
|
|
|
normalize_sched_times (partial_schedule_ptr ps)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
ddg_ptr g = ps->g;
|
|
|
|
|
int amount = PS_MIN_CYCLE (ps);
|
|
|
|
|
int ii = ps->ii;
|
|
|
|
|
|
2005-03-21 19:49:29 +01:00
|
|
|
|
/* Don't include the closing branch assuming that it is the last node. */
|
|
|
|
|
for (i = 0; i < g->num_nodes - 1; i++)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u = &g->nodes[i];
|
|
|
|
|
int normalized_time = SCHED_TIME (u) - amount;
|
|
|
|
|
|
alias.c (true_dependence): Remove 'abort' from comments.
* alias.c (true_dependence): Remove 'abort' from comments. Use
gcc_assert and gcc_unreachable as appropriate.
(canon_true_dependence): Likewise.
* bb-reorder.c (connect_traces): Likewise.
* c-common.c (c_add_case_label): Likewise.
* c-decl.c (finish_function): Likewise.
* caller-save.c (insert_restore, insert_save): Likewise.
* cfg.c (update_bb_profile_for_threading): Likewise.
* cfganal.c (flow_active_insn_p): Likewise.
* cfgexpand.c (add_reg_br_prob_note): Likewise.
* cfgrtl.c (rtl_redirect_edge_and_branch_force, rtl_split_edge,
cfg_layout_merge_blocks): Likewise.
* ifcvt.c (cond_exec_process_insns, merge_if_block,
find_if_block): Likewise.
* integrate.c (allocate_initial_values): Likewise.
* jump.c (reverse_condition, reverse_condition_maybe_unordered,
swap_condition, unsigned_condition, signed_condition,
mark_jump_label, invert_jump_1, rtx_renumbered_equal_p,
reg_or_subregno): Likewise.
* lambda-code.c (lambda_compute_auxillary_space,
lambda_transform_legal_p): Likewise.
* lambda-mat.c (lambda_matrix_inverse_hard): Likewise.
* langhooks.c (lhd_set_decl_assembler_name, lhd_type_promotes_to,
lhd_incomplete_type_error, lhd_expand_expr,
lhd_types_compatible_p, lhd_tree_size): Likewise.
* lcm.c (create_pre_exit, optimize_mode_switching): Likewise.
* local-alloc.c (update_equiv_regs): Likewise.
* loop-unroll.c (peel_loop_completely
unroll_loop_constant_iterations, unroll_loop_runtime_iterations,
peel_loop_simple, unroll_loop_stupid,
analyze_iv_to_split_insn): Likewise.
* loop.c (gen_prefetch, find_and_verify_loops,
basic_induction_var): Likewise.
* modulo-sched.c (normalize_sched_times, check_nodes_order): Likewise.
* value-prof.c (tree_find_values_to_profile): Likewise.
* varasm.c (named_section, default_assemble_integer,
decode_addr_const): Likewise.
From-SVN: r98508
2005-04-21 17:47:33 +02:00
|
|
|
|
gcc_assert (normalized_time >= 0);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
SCHED_TIME (u) = normalized_time;
|
|
|
|
|
SCHED_ROW (u) = normalized_time % ii;
|
|
|
|
|
SCHED_STAGE (u) = normalized_time / ii;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set SCHED_COLUMN of each node according to its position in PS. */
|
|
|
|
|
static void
|
|
|
|
|
set_columns_for_ps (partial_schedule_ptr ps)
|
|
|
|
|
{
|
|
|
|
|
int row;
|
|
|
|
|
|
|
|
|
|
for (row = 0; row < ps->ii; row++)
|
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr cur_insn = ps->rows[row];
|
|
|
|
|
int column = 0;
|
|
|
|
|
|
|
|
|
|
for (; cur_insn; cur_insn = cur_insn->next_in_row)
|
|
|
|
|
SCHED_COLUMN (cur_insn->node) = column++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Permute the insns according to their order in PS, from row 0 to
|
|
|
|
|
row ii-1, and position them right before LAST. This schedules
|
|
|
|
|
the insns of the loop kernel. */
|
|
|
|
|
static void
|
|
|
|
|
permute_partial_schedule (partial_schedule_ptr ps, rtx last)
|
|
|
|
|
{
|
|
|
|
|
int ii = ps->ii;
|
|
|
|
|
int row;
|
|
|
|
|
ps_insn_ptr ps_ij;
|
|
|
|
|
|
|
|
|
|
for (row = 0; row < ii ; row++)
|
|
|
|
|
for (ps_ij = ps->rows[row]; ps_ij; ps_ij = ps_ij->next_in_row)
|
|
|
|
|
if (PREV_INSN (last) != ps_ij->node->insn)
|
|
|
|
|
reorder_insns_nobb (ps_ij->node->first_note, ps_ij->node->insn,
|
|
|
|
|
PREV_INSN (last));
|
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* As part of undoing SMS we return to the original ordering of the
|
|
|
|
|
instructions inside the loop kernel. Given the partial schedule PS, this
|
|
|
|
|
function returns the ordering of the instruction according to their CUID
|
|
|
|
|
in the DDG (PS->G), which is the original order of the instruction before
|
|
|
|
|
performing SMS. */
|
|
|
|
|
static void
|
|
|
|
|
undo_permute_partial_schedule (partial_schedule_ptr ps, rtx last)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0 ; i < ps->g->num_nodes; i++)
|
|
|
|
|
if (last == ps->g->nodes[i].insn
|
|
|
|
|
|| last == ps->g->nodes[i].first_note)
|
|
|
|
|
break;
|
|
|
|
|
else if (PREV_INSN (last) != ps->g->nodes[i].insn)
|
|
|
|
|
reorder_insns_nobb (ps->g->nodes[i].first_note, ps->g->nodes[i].insn,
|
|
|
|
|
PREV_INSN (last));
|
|
|
|
|
}
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
/* Used to generate the prologue & epilogue. Duplicate the subset of
|
|
|
|
|
nodes whose stages are between FROM_STAGE and TO_STAGE (inclusive
|
|
|
|
|
of both), together with a prefix/suffix of their reg_moves. */
|
|
|
|
|
static void
|
|
|
|
|
duplicate_insns_of_cycles (partial_schedule_ptr ps, int from_stage,
|
|
|
|
|
int to_stage, int for_prolog)
|
|
|
|
|
{
|
|
|
|
|
int row;
|
|
|
|
|
ps_insn_ptr ps_ij;
|
|
|
|
|
|
|
|
|
|
for (row = 0; row < ps->ii; row++)
|
|
|
|
|
for (ps_ij = ps->rows[row]; ps_ij; ps_ij = ps_ij->next_in_row)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u_node = ps_ij->node;
|
|
|
|
|
int j, i_reg_moves;
|
|
|
|
|
rtx reg_move = NULL_RTX;
|
|
|
|
|
|
|
|
|
|
if (for_prolog)
|
|
|
|
|
{
|
|
|
|
|
/* SCHED_STAGE (u_node) >= from_stage == 0. Generate increasing
|
c-common.c, [...]: Fix comment typos.
* c-common.c, calls.c, cfgcleanup.c, cgraph.c, cgraphunit.c,
ddg.c, ddg.h, df.c, df.h, except.c, expr.c, flags.h,
fold-const.c, gcc.c, gimplify.c, haifa-sched.c,
modulo-sched.c, tree-inline.c, tree-into-ssa.c, tree-nested.c,
tree-nrv.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-live.c,
tree-ssa-loop.c, tree-ssa-pre.c, tree-tailcall.c, tree.h: Fix
comment typos. Follow spelling conventions.
From-SVN: r82439
2004-05-30 09:12:58 +02:00
|
|
|
|
number of reg_moves starting with the second occurrence of
|
2004-05-25 14:58:32 +02:00
|
|
|
|
u_node, which is generated if its SCHED_STAGE <= to_stage. */
|
2005-03-21 19:49:29 +01:00
|
|
|
|
i_reg_moves = to_stage - SCHED_STAGE (u_node) + 1;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
i_reg_moves = MAX (i_reg_moves, 0);
|
|
|
|
|
i_reg_moves = MIN (i_reg_moves, SCHED_NREG_MOVES (u_node));
|
|
|
|
|
|
|
|
|
|
/* The reg_moves start from the *first* reg_move backwards. */
|
|
|
|
|
if (i_reg_moves)
|
|
|
|
|
{
|
|
|
|
|
reg_move = SCHED_FIRST_REG_MOVE (u_node);
|
|
|
|
|
for (j = 1; j < i_reg_moves; j++)
|
|
|
|
|
reg_move = PREV_INSN (reg_move);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else /* It's for the epilog. */
|
|
|
|
|
{
|
|
|
|
|
/* SCHED_STAGE (u_node) <= to_stage. Generate all reg_moves,
|
|
|
|
|
starting to decrease one stage after u_node no longer occurs;
|
|
|
|
|
that is, generate all reg_moves until
|
|
|
|
|
SCHED_STAGE (u_node) == from_stage - 1. */
|
|
|
|
|
i_reg_moves = SCHED_NREG_MOVES (u_node)
|
|
|
|
|
- (from_stage - SCHED_STAGE (u_node) - 1);
|
|
|
|
|
i_reg_moves = MAX (i_reg_moves, 0);
|
|
|
|
|
i_reg_moves = MIN (i_reg_moves, SCHED_NREG_MOVES (u_node));
|
|
|
|
|
|
|
|
|
|
/* The reg_moves start from the *last* reg_move forwards. */
|
|
|
|
|
if (i_reg_moves)
|
|
|
|
|
{
|
|
|
|
|
reg_move = SCHED_FIRST_REG_MOVE (u_node);
|
|
|
|
|
for (j = 1; j < SCHED_NREG_MOVES (u_node); j++)
|
|
|
|
|
reg_move = PREV_INSN (reg_move);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (j = 0; j < i_reg_moves; j++, reg_move = NEXT_INSN (reg_move))
|
|
|
|
|
emit_insn (copy_rtx (PATTERN (reg_move)));
|
|
|
|
|
if (SCHED_STAGE (u_node) >= from_stage
|
|
|
|
|
&& SCHED_STAGE (u_node) <= to_stage)
|
|
|
|
|
duplicate_insn_chain (u_node->first_note, u_node->insn);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Generate the instructions (including reg_moves) for prolog & epilog. */
|
|
|
|
|
static void
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
generate_prolog_epilog (partial_schedule_ptr ps, struct loop * loop, rtx count_reg)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
int last_stage = PS_STAGE_COUNT (ps) - 1;
|
|
|
|
|
edge e;
|
|
|
|
|
|
|
|
|
|
/* Generate the prolog, inserting its insns on the loop-entry edge. */
|
|
|
|
|
start_sequence ();
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (count_reg)
|
|
|
|
|
/* Generate a subtract instruction at the beginning of the prolog to
|
|
|
|
|
adjust the loop count by STAGE_COUNT. */
|
|
|
|
|
emit_insn (gen_sub2_insn (count_reg, GEN_INT (last_stage)));
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < last_stage; i++)
|
|
|
|
|
duplicate_insns_of_cycles (ps, 0, i, 1);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Put the prolog , on the one and only entry edge. */
|
|
|
|
|
e = loop_preheader_edge (loop);
|
|
|
|
|
loop_split_edge_with(e , get_insns());
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
end_sequence ();
|
|
|
|
|
|
|
|
|
|
/* Generate the epilog, inserting its insns on the loop-exit edge. */
|
|
|
|
|
start_sequence ();
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < last_stage; i++)
|
|
|
|
|
duplicate_insns_of_cycles (ps, i + 1, last_stage, 0);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Put the epilogue on the one and only one exit edge. */
|
|
|
|
|
gcc_assert (loop->single_exit);
|
|
|
|
|
e = loop->single_exit;
|
|
|
|
|
loop_split_edge_with(e , get_insns());
|
|
|
|
|
end_sequence ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the line note insn preceding INSN, for debugging. Taken from
|
|
|
|
|
emit-rtl.c. */
|
|
|
|
|
static rtx
|
|
|
|
|
find_line_note (rtx insn)
|
|
|
|
|
{
|
|
|
|
|
for (; insn; insn = PREV_INSN (insn))
|
|
|
|
|
if (NOTE_P (insn)
|
|
|
|
|
&& NOTE_LINE_NUMBER (insn) >= 0)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
return insn;
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Return true if all the BBs of the loop are empty except the
|
|
|
|
|
loop header. */
|
|
|
|
|
static bool
|
|
|
|
|
loop_single_full_bb_p (struct loop *loop)
|
|
|
|
|
{
|
|
|
|
|
unsigned i;
|
|
|
|
|
basic_block *bbs = get_loop_body (loop);
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < loop->num_nodes ; i++)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
rtx head, tail;
|
|
|
|
|
bool empty_bb = true;
|
|
|
|
|
|
|
|
|
|
if (bbs[i] == loop->header)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* Make sure that basic blocks other than the header
|
|
|
|
|
have only notes labels or jumps. */
|
|
|
|
|
get_block_head_tail (bbs[i]->index, &head, &tail);
|
|
|
|
|
for (; head != NEXT_INSN (tail); head = NEXT_INSN (head))
|
|
|
|
|
{
|
|
|
|
|
if (NOTE_P (head) || LABEL_P (head)
|
|
|
|
|
|| (INSN_P (head) && JUMP_P (head)))
|
|
|
|
|
continue;
|
|
|
|
|
empty_bb = false;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (! empty_bb)
|
|
|
|
|
{
|
|
|
|
|
free (bbs);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
free (bbs);
|
|
|
|
|
return true;
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* A simple loop from SMS point of view; it is a loop that is composed of
|
|
|
|
|
either a single basic block or two BBs - a header and a latch. */
|
|
|
|
|
#define SIMPLE_SMS_LOOP_P(loop) ((loop->num_nodes < 3 ) \
|
|
|
|
|
&& (EDGE_COUNT (loop->latch->preds) == 1) \
|
|
|
|
|
&& (EDGE_COUNT (loop->latch->succs) == 1))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Return true if the loop is in its canonical form and false if not.
|
|
|
|
|
i.e. SIMPLE_SMS_LOOP_P and have one preheader block, and single exit. */
|
|
|
|
|
static bool
|
|
|
|
|
loop_canon_p (struct loop *loop, FILE *dump_file)
|
|
|
|
|
{
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (loop->inner || ! loop->outer)
|
|
|
|
|
return false;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (!loop->single_exit)
|
|
|
|
|
{
|
|
|
|
|
if (dump_file)
|
|
|
|
|
{
|
|
|
|
|
rtx line_note = find_line_note (BB_END (loop->header));
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
fprintf (dump_file, "SMS loop many exits ");
|
|
|
|
|
if (line_note)
|
|
|
|
|
{
|
|
|
|
|
expanded_location xloc;
|
|
|
|
|
NOTE_EXPANDED_LOCATION (xloc, line_note);
|
|
|
|
|
fprintf (stats_file, " %s %d (file, line)\n",
|
|
|
|
|
xloc.file, xloc.line);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return false;
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (! SIMPLE_SMS_LOOP_P (loop) && ! loop_single_full_bb_p (loop))
|
|
|
|
|
{
|
|
|
|
|
if (dump_file)
|
|
|
|
|
{
|
|
|
|
|
rtx line_note = find_line_note (BB_END (loop->header));
|
|
|
|
|
|
|
|
|
|
fprintf (dump_file, "SMS loop many BBs. ");
|
|
|
|
|
if (line_note)
|
|
|
|
|
{
|
|
|
|
|
expanded_location xloc;
|
|
|
|
|
NOTE_EXPANDED_LOCATION (xloc, line_note);
|
|
|
|
|
fprintf (stats_file, " %s %d (file, line)\n",
|
|
|
|
|
xloc.file, xloc.line);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return false;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
return true;
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* If there are more than one entry for the loop,
|
|
|
|
|
make it one by splitting the first entry edge and
|
|
|
|
|
redirecting the others to the new BB. */
|
|
|
|
|
static void
|
|
|
|
|
canon_loop (struct loop *loop)
|
|
|
|
|
{
|
|
|
|
|
edge e;
|
|
|
|
|
edge_iterator i;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Avoid annoying special cases of edges going to exit
|
|
|
|
|
block. */
|
|
|
|
|
FOR_EACH_EDGE (e, i, EXIT_BLOCK_PTR->preds)
|
|
|
|
|
if ((e->flags & EDGE_FALLTHRU) && (EDGE_COUNT (e->src->succs) > 1))
|
|
|
|
|
loop_split_edge_with (e, NULL_RTX);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (loop->latch == loop->header
|
|
|
|
|
|| EDGE_COUNT (loop->latch->succs) > 1)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
FOR_EACH_EDGE (e, i, loop->header->preds)
|
|
|
|
|
if (e->src == loop->latch)
|
|
|
|
|
break;
|
|
|
|
|
loop_split_edge_with (e, NULL_RTX);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Build the loop information without loop
|
|
|
|
|
canonization, the loop canonization will
|
2005-04-03 16:09:57 +02:00
|
|
|
|
be performed if the loop is SMSable. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
static struct loops *
|
|
|
|
|
build_loops_structure (FILE *dumpfile)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
struct loops *loops = xcalloc (1, sizeof (struct loops));
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Find the loops. */
|
|
|
|
|
|
|
|
|
|
if (flow_loops_find (loops) <= 1)
|
|
|
|
|
{
|
|
|
|
|
/* No loops. */
|
|
|
|
|
flow_loops_free (loops);
|
|
|
|
|
free (loops);
|
|
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Not going to update these. */
|
|
|
|
|
free (loops->cfg.rc_order);
|
|
|
|
|
loops->cfg.rc_order = NULL;
|
|
|
|
|
free (loops->cfg.dfs_order);
|
|
|
|
|
loops->cfg.dfs_order = NULL;
|
|
|
|
|
|
|
|
|
|
create_preheaders (loops, CP_SIMPLE_PREHEADERS);
|
|
|
|
|
mark_single_exit_loops (loops);
|
|
|
|
|
/* Dump loops. */
|
|
|
|
|
flow_loops_dump (loops, dumpfile, NULL, 1);
|
|
|
|
|
|
|
|
|
|
#ifdef ENABLE_CHECKING
|
|
|
|
|
verify_dominators (CDI_DOMINATORS);
|
|
|
|
|
verify_loop_structure (loops);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
return loops;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Main entry point, perform SMS scheduling on the loops of the function
|
|
|
|
|
that consist of single basic blocks. */
|
|
|
|
|
void
|
|
|
|
|
sms_schedule (FILE *dump_file)
|
|
|
|
|
{
|
|
|
|
|
static int passes = 0;
|
|
|
|
|
rtx insn;
|
|
|
|
|
ddg_ptr *g_arr, g;
|
|
|
|
|
int * node_order;
|
|
|
|
|
int maxii;
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
unsigned i,num_loops;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
partial_schedule_ptr ps;
|
|
|
|
|
struct df *df;
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
struct loops *loops;
|
|
|
|
|
basic_block bb = NULL;
|
|
|
|
|
/* vars to the versioning only if needed*/
|
|
|
|
|
struct loop * nloop;
|
|
|
|
|
basic_block condition_bb = NULL;
|
|
|
|
|
edge latch_edge;
|
|
|
|
|
gcov_type trip_count = 0;
|
|
|
|
|
|
|
|
|
|
if (! (loops = build_loops_structure (dump_file)))
|
|
|
|
|
return; /* There is no loops to schedule. */
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
stats_file = dump_file;
|
|
|
|
|
|
|
|
|
|
/* Initialize issue_rate. */
|
|
|
|
|
if (targetm.sched.issue_rate)
|
|
|
|
|
{
|
|
|
|
|
int temp = reload_completed;
|
|
|
|
|
|
|
|
|
|
reload_completed = 1;
|
2005-04-28 04:25:22 +02:00
|
|
|
|
issue_rate = targetm.sched.issue_rate ();
|
2004-05-25 14:58:32 +02:00
|
|
|
|
reload_completed = temp;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
issue_rate = 1;
|
|
|
|
|
|
c-typeck.c, [...]: Fix comment typos.
* c-typeck.c, cfgexpand.c, ddg.c, ddg.h, df.c, fold-const.c,
gcov.c, gimplify.c, modulo-sched.c, passes.c, tree-cfg.c,
tree-mudflap.c, tree-nrv.c, tree-outof-ssa.c, tree-ssa-dom.c,
tree-ssa-dse.c, tree-ssa-operands.c, tree-ssa-pre.c,
tree-tailcall.c: Fix comment typos. Follow spelling
conventions.
From-SVN: r83703
2004-06-26 07:03:55 +02:00
|
|
|
|
/* Initialize the scheduler. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
current_sched_info = &sms_sched_info;
|
|
|
|
|
sched_init (NULL);
|
|
|
|
|
|
|
|
|
|
/* Init Data Flow analysis, to be used in interloop dep calculation. */
|
|
|
|
|
df = df_init ();
|
|
|
|
|
df_analyze (df, 0, DF_ALL);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Allocate memory to hold the DDG array one entry for each loop.
|
|
|
|
|
We use loop->num as index into this array. */
|
|
|
|
|
g_arr = xcalloc (loops->num, sizeof (ddg_ptr));
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
/* Build DDGs for all the relevant loops and hold them in G_ARR
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
indexed by the loop index. */
|
|
|
|
|
for (i = 0; i < loops->num; i++)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
rtx head, tail;
|
|
|
|
|
rtx count_reg, comp;
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
struct loop *loop = loops->parray[i];
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* For debugging. */
|
|
|
|
|
if ((passes++ > MAX_SMS_LOOP_NUMBER) && (MAX_SMS_LOOP_NUMBER != -1))
|
|
|
|
|
{
|
|
|
|
|
if (dump_file)
|
|
|
|
|
fprintf (dump_file, "SMS reached MAX_PASSES... \n");
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
break;
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (! loop_canon_p (loop, dump_file))
|
|
|
|
|
continue;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (! loop_single_full_bb_p (loop))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
continue;
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
bb = loop->header;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
get_block_head_tail (bb->index, &head, &tail);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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latch_edge = loop_latch_edge (loop);
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gcc_assert (loop->single_exit);
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if (loop->single_exit->count)
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trip_count = latch_edge->count / loop->single_exit->count;
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2004-05-25 14:58:32 +02:00
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/* Perfrom SMS only on loops that their average count is above threshold. */
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cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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if ( latch_edge->count
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&& (latch_edge->count < loop->single_exit->count * SMS_LOOP_AVERAGE_COUNT_THRESHOLD))
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{
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2004-05-25 14:58:32 +02:00
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if (stats_file)
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{
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rtx line_note = find_line_note (tail);
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if (line_note)
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2004-06-30 20:21:54 +02:00
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{
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expanded_location xloc;
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NOTE_EXPANDED_LOCATION (xloc, line_note);
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fprintf (stats_file, "SMS bb %s %d (file, line)\n",
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xloc.file, xloc.line);
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}
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2004-05-25 14:58:32 +02:00
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fprintf (stats_file, "SMS single-bb-loop\n");
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if (profile_info && flag_branch_probabilities)
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{
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fprintf (stats_file, "SMS loop-count ");
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fprintf (stats_file, HOST_WIDEST_INT_PRINT_DEC,
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(HOST_WIDEST_INT) bb->count);
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fprintf (stats_file, "\n");
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cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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fprintf (stats_file, "SMS trip-count ");
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fprintf (stats_file, HOST_WIDEST_INT_PRINT_DEC,
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(HOST_WIDEST_INT) trip_count);
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fprintf (stats_file, "\n");
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2004-05-25 14:58:32 +02:00
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fprintf (stats_file, "SMS profile-sum-max ");
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fprintf (stats_file, HOST_WIDEST_INT_PRINT_DEC,
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(HOST_WIDEST_INT) profile_info->sum_max);
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fprintf (stats_file, "\n");
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}
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}
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continue;
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}
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/* Make sure this is a doloop. */
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if ( !(count_reg = doloop_register_get (tail, &comp)))
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continue;
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/* Don't handle BBs with calls or barriers, or !single_set insns. */
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for (insn = head; insn != NEXT_INSN (tail); insn = NEXT_INSN (insn))
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alias.c (nonlocal_mentioned_p, [...]): Use, LABEL_P, JUMP_P, CALL_P, NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
2004-07-08 Jerry Quinn <jlquinn@optonline.net>
* alias.c (nonlocal_mentioned_p, nonlocal_referenced_p,
nonlocal_set_p, init_alias_analysis): Use, LABEL_P, JUMP_P, CALL_P,
NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
* bb-reorder.c (mark_bb_for_unlikely_executed_section,
add_labels_and_missing_jumps, find_jump_block,
fix_crossing_unconditional_branches, add_reg_crossing_jump_notes):
Likewise.
* bt-load.c (btr_referenced_p, compute_defs_uses_and_gen,
link_btr_uses, move_btr_def): Likewise.
* builtins.c (expand_builtin_longjmp, expand_builtin_nonlocal_goto,
expand_builtin_expect_jump): Likewise.
* caller-save.c (save_call_clobbered_regs, insert_one_insn): Likewise.
* calls.c (expand_call, emit_library_call_value_1): Likewise.
* cfganal.c (forwarder_block_p): Likewise.
* cfgbuild.c (inside_basic_block_p, count_basic_blocks,
make_label_edge, rtl_make_eh_edge, make_edges, find_basic_blocks_1,
find_bb_boundaries): Likewise.
* cfgcleanup.c (try_simplify_condjump, try_forward_edges,
merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, insns_match_p,
flow_find_cross_jump, outgoing_edges_match, try_crossjump_to_edge,
try_optimize_cfg): Likewise.
* cfgexpand.c (expand_block, construct_exit_block): Likewise.
* cfglayout.c (skip_insns_after_block, label_for_bb,
record_effective_endpoints, insn_locators_initialize,
fixup_reorder_chain, update_unlikely_executed_notes): Likewise.
* cfgmainloop.c (create_loop_notes): Likewise.
* cfgrtl.c (delete_insn, delete_insn_chain,
create_basic_block_structure, rtl_delete_block, free_bb_for_insn,
update_bb_for_insn, rtl_merge_blocks, rtl_can_merge_blocks,
block_label, try_redirect_by_replacing_jump, last_loop_beg_note,
redirect_branch_edge, force_nonfallthru_and_redirect,
rtl_tidy_fallthru_edge, back_edge_of_syntactic_loop_p,
rtl_split_edge, commit_one_edge_insertion, print_rtl_with_bb,
update_br_prob_note, rtl_verify_flow_info_1, rtl_verify_flow_info,
purge_dead_edges, cfg_layout_redirect_edge_and_branch,
cfg_layout_delete_block, cfg_layout_can_merge_blocks_p,
cfg_layout_merge_blocks, rtl_block_ends_with_call_p,
need_fake_edge_p, rtl_flow_call_edges_add): Likewise.
* combine.c (combine_instructions, can_combine_p, try_combine,
find_split_point, record_dead_and_set_regs, reg_dead_at_p,
distribute_notes, distribute_links, insn_cuid): Likewise.
* cse.c (fold_rtx, cse_insn, cse_around_loop,
invalidate_skipped_block, cse_set_around_loop,
cse_end_of_basic_block, cse_main, cse_basic_block,
cse_condition_code_reg): Likewise.
* cselib.c (cselib_process_insn): Likewise.
* ddg.c (create_ddg): Likewise.
* df.c (df_insn_refs_record, df_bb_rd_local_compute, df_insns_modify):
Likewise.
* dwarf2out.c (dwarf2out_stack_adjust, dwarf2out_frame_debug,
gen_label_die, dwarf2out_var_location): Likewise.
* emit-rtl.c (get_first_nonnote_insn, get_last_nonnote_insn,
next_insn, previous_insn, next_nonnote_insn, prev_nonnote_insn,
last_call_insn, active_insn_p, next_label, prev_label,
link_cc0_insns, next_cc0_user, try_split, add_insn_after,
add_insn_before, remove_insn, add_function_usage_to,
reorder_insns, find_line_note, remove_unnecessary_notes,
emit_insn_after_1, classify_insn): Likewise.
* except.c (convert_from_eh_region_ranges_1, emit_to_new_bb_before,
connect_post_landing_pads, sjlj_mark_call_sites,
sjlj_emit_function_enter, sjlj_emit_function_exit, reachable_handlers,
can_throw_internal, can_throw_external, set_nothrow_function_flags,
convert_to_eh_region_ranges): Likewise.
* explow.c (optimize_save_area_alloca): Likewise.
* expr.c (expand_expr_real): Likewise.
* final.c (insn_current_reference_address, compute_alignments,
shorten_branches, final, scan_ahead_for_unlikely_executed_note,
final_scan_insn, output_asm_label, leaf_function_p): Likewise.
* flow.c (first_insn_after_basic_block_note, delete_dead_jumptables,
propagate_block_delete_insn, propagate_one_insn,
init_propagate_block_info, propagate_block, libcall_dead_p,
mark_set_1, attempt_auto_inc, find_auto_inc, try_pre_increment):
Likewise.
* function.c (instantiate_virtual_regs, reorder_blocks_1,
expand_function_start, expand_function_end, contains,
thread_prologue_and_epilogue_insns,
reposition_prologue_and_epilogue_notes): Likewise.
* gcse.c (constprop_register, bypass_conditional_jumps,
insert_insn_end_bb, gcse_after_reload): Likewise.
* genemit.c (gen_expand, gen_split): Likewise.
* genpeep.c (gen_peephole, main): Likewise.
* global.c (build_insn_chain): Likewise.
* graph.c (node_data, print_rtl_graph_with_bb): Likewise.
* haifa-sched.c (unlink_other_notes, unlink_line_notes,
get_block_head_tail, no_real_insns_p, rm_line_notes, save_line_notes,
restore_line_notes, rm_redundant_line_notes, rm_other_notes,
ok_for_early_queue_removal, set_priorities, sched_init): Likewise.
* ifcvt.c (count_bb_insns, first_active_insn, last_active_insn,
cond_exec_process_insns, end_ifcvt_sequence, noce_process_if_block,
merge_if_block, block_jumps_and_fallthru_p, find_if_block,
dead_or_predicable): Likewise.
* integrate.c (try_constants): Likewise.
* jump.c (rebuild_jump_labels, cleanup_barriers,
purge_line_number_notes, init_label_info, mark_all_labels,
squeeze_notes, get_label_before, get_label_after,
reversed_comparison_code_parts, simplejump_p, pc_set,
returnjump_p, onlyjump_p, follow_jumps, mark_jump_label,
delete_barrier, delete_prior_computation, delete_computation,
delete_related_insns, delete_for_peephole, redirect_jump):
Likewise.
* lcm.c (optimize_mode_switching): Likewise.
* local-alloc.c (validate_equiv_mem, update_equiv_regs, block_alloc):
Likewise.
* loop-doloop.c (doloop_valid_p, doloop_optimize): Likewise.
* loop-invariant.c (find_exits, find_invariants_bb): Likewise.
* loop-iv.c (simplify_using_assignment): Likewise.
* loop.c (compute_luids, loop_optimize, scan_loop, libcall_other_reg,
libcall_benefit, skip_consec_insns, move_movables, prescan_loop,
find_and_verify_loops, labels_in_range_p, for_each_insn_in_loop,
loop_bivs_init_find, strength_reduce, check_insn_for_bivs,
check_insn_for_givs, check_final_value, update_giv_derive,
basic_induction_var, product_cheap_p, check_dbra_loop,
loop_insn_first_p, last_use_this_basic_block,
canonicalize_condition, get_condition, loop_regs_scan, load_mems,
try_copy_prop, LOOP_BLOCK_NUM, loop_dump_aux): Likewise.
* modulo-sched.c (doloop_register_get, find_line_note, sms_schedule,
sms_schedule_by_order): Likewise.
* optabs.c (emit_no_conflict_block, emit_libcall_block): Likewise.
* postreload.c (reload_cse_simplify_operands, reload_combine,
reload_cse_move2add): Likewise.
* predict.c (can_predict_insn_p, estimate_probability,
expected_value_to_br_prob, process_note_predictions): Likewise.
* print-rtl.c (print_rtx, print_rtl, print_rtl_single): Likewise.
* profile.c (branch_prob): Likewise.
* ra-build.c (live_out_1, livethrough_conflicts_bb,
detect_webs_set_in_cond_jump): Likewise.
* ra-debug.c (ra_print_rtx_object, ra_debug_insns,
ra_print_rtl_with_bb): Likewise.
* ra-rewrite.c (insert_stores, rewrite_program2): Likewise.
* recog.c (next_insn_tests_no_inequality, find_single_use,
split_all_insns, peephole2_optimize, if_test_bypass_p): Likewise.
* reg-stack.c (next_flags_user, record_label_references,
emit_swap_insn, swap_rtx_condition, subst_stack_regs,
compensate_edge, convert_regs_1): Likewise.
* regclass.c (scan_one_insn): Likewise.
* regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
regmove_optimize, fixup_match_1, single_set_for_csa,
combine_stack_adjustments_for_block): Likewise.
* regrename.c (build_def_use, copyprop_hardreg_forward_1): Likewise.
* reload.c (find_reloads, find_reloads_address_1, subst_reloads,
find_equiv_reg): Likewise.
* reload1.c (reload, calculate_needs_all_insns, set_label_offsets,
reload_as_needed, emit_input_reload_insns, do_output_reload,
delete_output_reload, delete_address_reloads_1, fixup_abnormal_edges):
Likewise.
* reorg.c (find_end_label, emit_delay_sequence,
delete_from_delay_slot, delete_scheduled_jump, optimize_skip,
get_jump_flags, rare_destination, mostly_true_jump,
try_merge_delay_insns, redundant_insn, own_thread_p,
fill_simple_delay_slots, fill_slots_from_thread,
fill_eager_delay_slots, relax_delay_slots, make_return_insns,
dbr_schedule): Likewise.
* resource.c (find_basic_block, next_insn_no_annul,
find_dead_or_set_registers, mark_target_live_regs): Likewise.
* rtl.h (RTX_PREV): Likewise.
* rtlanal.c (global_reg_mentioned_p, no_labels_between_p,
no_jumps_between_p, reg_used_between_p, reg_referenced_between_p,
reg_set_p, find_last_value, dead_or_set_regno_p, find_reg_fusage,
find_regno_fusage, pure_call_p, replace_label, rtx_referenced_p_1,
tablejump_p, computed_jump_p, insns_safe_to_move_p,
find_first_parameter_load, can_hoist_insn_p): Likewise.
* sched-deps.c (get_condition, add_dependence, sched_analyze_2,
sched_analyze_insn, sched_analyze, add_forward_dependence): Likewise.
* sched-ebb.c (fix_basic_block_boundaries, add_deps_for_risky_insns,
schedule_ebbs): Likewise.
* sched-rgn.c (is_cfg_nonregular, find_conditional_protection,
is_conditionally_protected, can_schedule_ready_p,
add_branch_dependences, debug_dependencies): Likewise.
* stmt.c (emit_nop, expand_start_case, emit_jump_if_reachable):
Likewise.
* unroll.c (unroll_loop, copy_loop_body, back_branch_in_range_p,
reg_dead_after_loop, loop_find_equiv_value, loop_iterations,
set_dominates_use, ujump_to_loop_cont): Likewise.
* var-tracking.c (prologue_stack_adjust, vt_initialize): Likewise.
* varasm.c (output_constant_pool_1): Likewise.
From-SVN: r84341
2004-07-09 05:29:35 +02:00
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if (CALL_P (insn)
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|| BARRIER_P (insn)
|
|
|
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|| (INSN_P (insn) && !JUMP_P (insn)
|
2004-05-25 14:58:32 +02:00
|
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&& !single_set (insn) && GET_CODE (PATTERN (insn)) != USE))
|
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break;
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if (insn != NEXT_INSN (tail))
|
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{
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|
if (stats_file)
|
|
|
|
|
{
|
alias.c (nonlocal_mentioned_p, [...]): Use, LABEL_P, JUMP_P, CALL_P, NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
2004-07-08 Jerry Quinn <jlquinn@optonline.net>
* alias.c (nonlocal_mentioned_p, nonlocal_referenced_p,
nonlocal_set_p, init_alias_analysis): Use, LABEL_P, JUMP_P, CALL_P,
NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
* bb-reorder.c (mark_bb_for_unlikely_executed_section,
add_labels_and_missing_jumps, find_jump_block,
fix_crossing_unconditional_branches, add_reg_crossing_jump_notes):
Likewise.
* bt-load.c (btr_referenced_p, compute_defs_uses_and_gen,
link_btr_uses, move_btr_def): Likewise.
* builtins.c (expand_builtin_longjmp, expand_builtin_nonlocal_goto,
expand_builtin_expect_jump): Likewise.
* caller-save.c (save_call_clobbered_regs, insert_one_insn): Likewise.
* calls.c (expand_call, emit_library_call_value_1): Likewise.
* cfganal.c (forwarder_block_p): Likewise.
* cfgbuild.c (inside_basic_block_p, count_basic_blocks,
make_label_edge, rtl_make_eh_edge, make_edges, find_basic_blocks_1,
find_bb_boundaries): Likewise.
* cfgcleanup.c (try_simplify_condjump, try_forward_edges,
merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, insns_match_p,
flow_find_cross_jump, outgoing_edges_match, try_crossjump_to_edge,
try_optimize_cfg): Likewise.
* cfgexpand.c (expand_block, construct_exit_block): Likewise.
* cfglayout.c (skip_insns_after_block, label_for_bb,
record_effective_endpoints, insn_locators_initialize,
fixup_reorder_chain, update_unlikely_executed_notes): Likewise.
* cfgmainloop.c (create_loop_notes): Likewise.
* cfgrtl.c (delete_insn, delete_insn_chain,
create_basic_block_structure, rtl_delete_block, free_bb_for_insn,
update_bb_for_insn, rtl_merge_blocks, rtl_can_merge_blocks,
block_label, try_redirect_by_replacing_jump, last_loop_beg_note,
redirect_branch_edge, force_nonfallthru_and_redirect,
rtl_tidy_fallthru_edge, back_edge_of_syntactic_loop_p,
rtl_split_edge, commit_one_edge_insertion, print_rtl_with_bb,
update_br_prob_note, rtl_verify_flow_info_1, rtl_verify_flow_info,
purge_dead_edges, cfg_layout_redirect_edge_and_branch,
cfg_layout_delete_block, cfg_layout_can_merge_blocks_p,
cfg_layout_merge_blocks, rtl_block_ends_with_call_p,
need_fake_edge_p, rtl_flow_call_edges_add): Likewise.
* combine.c (combine_instructions, can_combine_p, try_combine,
find_split_point, record_dead_and_set_regs, reg_dead_at_p,
distribute_notes, distribute_links, insn_cuid): Likewise.
* cse.c (fold_rtx, cse_insn, cse_around_loop,
invalidate_skipped_block, cse_set_around_loop,
cse_end_of_basic_block, cse_main, cse_basic_block,
cse_condition_code_reg): Likewise.
* cselib.c (cselib_process_insn): Likewise.
* ddg.c (create_ddg): Likewise.
* df.c (df_insn_refs_record, df_bb_rd_local_compute, df_insns_modify):
Likewise.
* dwarf2out.c (dwarf2out_stack_adjust, dwarf2out_frame_debug,
gen_label_die, dwarf2out_var_location): Likewise.
* emit-rtl.c (get_first_nonnote_insn, get_last_nonnote_insn,
next_insn, previous_insn, next_nonnote_insn, prev_nonnote_insn,
last_call_insn, active_insn_p, next_label, prev_label,
link_cc0_insns, next_cc0_user, try_split, add_insn_after,
add_insn_before, remove_insn, add_function_usage_to,
reorder_insns, find_line_note, remove_unnecessary_notes,
emit_insn_after_1, classify_insn): Likewise.
* except.c (convert_from_eh_region_ranges_1, emit_to_new_bb_before,
connect_post_landing_pads, sjlj_mark_call_sites,
sjlj_emit_function_enter, sjlj_emit_function_exit, reachable_handlers,
can_throw_internal, can_throw_external, set_nothrow_function_flags,
convert_to_eh_region_ranges): Likewise.
* explow.c (optimize_save_area_alloca): Likewise.
* expr.c (expand_expr_real): Likewise.
* final.c (insn_current_reference_address, compute_alignments,
shorten_branches, final, scan_ahead_for_unlikely_executed_note,
final_scan_insn, output_asm_label, leaf_function_p): Likewise.
* flow.c (first_insn_after_basic_block_note, delete_dead_jumptables,
propagate_block_delete_insn, propagate_one_insn,
init_propagate_block_info, propagate_block, libcall_dead_p,
mark_set_1, attempt_auto_inc, find_auto_inc, try_pre_increment):
Likewise.
* function.c (instantiate_virtual_regs, reorder_blocks_1,
expand_function_start, expand_function_end, contains,
thread_prologue_and_epilogue_insns,
reposition_prologue_and_epilogue_notes): Likewise.
* gcse.c (constprop_register, bypass_conditional_jumps,
insert_insn_end_bb, gcse_after_reload): Likewise.
* genemit.c (gen_expand, gen_split): Likewise.
* genpeep.c (gen_peephole, main): Likewise.
* global.c (build_insn_chain): Likewise.
* graph.c (node_data, print_rtl_graph_with_bb): Likewise.
* haifa-sched.c (unlink_other_notes, unlink_line_notes,
get_block_head_tail, no_real_insns_p, rm_line_notes, save_line_notes,
restore_line_notes, rm_redundant_line_notes, rm_other_notes,
ok_for_early_queue_removal, set_priorities, sched_init): Likewise.
* ifcvt.c (count_bb_insns, first_active_insn, last_active_insn,
cond_exec_process_insns, end_ifcvt_sequence, noce_process_if_block,
merge_if_block, block_jumps_and_fallthru_p, find_if_block,
dead_or_predicable): Likewise.
* integrate.c (try_constants): Likewise.
* jump.c (rebuild_jump_labels, cleanup_barriers,
purge_line_number_notes, init_label_info, mark_all_labels,
squeeze_notes, get_label_before, get_label_after,
reversed_comparison_code_parts, simplejump_p, pc_set,
returnjump_p, onlyjump_p, follow_jumps, mark_jump_label,
delete_barrier, delete_prior_computation, delete_computation,
delete_related_insns, delete_for_peephole, redirect_jump):
Likewise.
* lcm.c (optimize_mode_switching): Likewise.
* local-alloc.c (validate_equiv_mem, update_equiv_regs, block_alloc):
Likewise.
* loop-doloop.c (doloop_valid_p, doloop_optimize): Likewise.
* loop-invariant.c (find_exits, find_invariants_bb): Likewise.
* loop-iv.c (simplify_using_assignment): Likewise.
* loop.c (compute_luids, loop_optimize, scan_loop, libcall_other_reg,
libcall_benefit, skip_consec_insns, move_movables, prescan_loop,
find_and_verify_loops, labels_in_range_p, for_each_insn_in_loop,
loop_bivs_init_find, strength_reduce, check_insn_for_bivs,
check_insn_for_givs, check_final_value, update_giv_derive,
basic_induction_var, product_cheap_p, check_dbra_loop,
loop_insn_first_p, last_use_this_basic_block,
canonicalize_condition, get_condition, loop_regs_scan, load_mems,
try_copy_prop, LOOP_BLOCK_NUM, loop_dump_aux): Likewise.
* modulo-sched.c (doloop_register_get, find_line_note, sms_schedule,
sms_schedule_by_order): Likewise.
* optabs.c (emit_no_conflict_block, emit_libcall_block): Likewise.
* postreload.c (reload_cse_simplify_operands, reload_combine,
reload_cse_move2add): Likewise.
* predict.c (can_predict_insn_p, estimate_probability,
expected_value_to_br_prob, process_note_predictions): Likewise.
* print-rtl.c (print_rtx, print_rtl, print_rtl_single): Likewise.
* profile.c (branch_prob): Likewise.
* ra-build.c (live_out_1, livethrough_conflicts_bb,
detect_webs_set_in_cond_jump): Likewise.
* ra-debug.c (ra_print_rtx_object, ra_debug_insns,
ra_print_rtl_with_bb): Likewise.
* ra-rewrite.c (insert_stores, rewrite_program2): Likewise.
* recog.c (next_insn_tests_no_inequality, find_single_use,
split_all_insns, peephole2_optimize, if_test_bypass_p): Likewise.
* reg-stack.c (next_flags_user, record_label_references,
emit_swap_insn, swap_rtx_condition, subst_stack_regs,
compensate_edge, convert_regs_1): Likewise.
* regclass.c (scan_one_insn): Likewise.
* regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
regmove_optimize, fixup_match_1, single_set_for_csa,
combine_stack_adjustments_for_block): Likewise.
* regrename.c (build_def_use, copyprop_hardreg_forward_1): Likewise.
* reload.c (find_reloads, find_reloads_address_1, subst_reloads,
find_equiv_reg): Likewise.
* reload1.c (reload, calculate_needs_all_insns, set_label_offsets,
reload_as_needed, emit_input_reload_insns, do_output_reload,
delete_output_reload, delete_address_reloads_1, fixup_abnormal_edges):
Likewise.
* reorg.c (find_end_label, emit_delay_sequence,
delete_from_delay_slot, delete_scheduled_jump, optimize_skip,
get_jump_flags, rare_destination, mostly_true_jump,
try_merge_delay_insns, redundant_insn, own_thread_p,
fill_simple_delay_slots, fill_slots_from_thread,
fill_eager_delay_slots, relax_delay_slots, make_return_insns,
dbr_schedule): Likewise.
* resource.c (find_basic_block, next_insn_no_annul,
find_dead_or_set_registers, mark_target_live_regs): Likewise.
* rtl.h (RTX_PREV): Likewise.
* rtlanal.c (global_reg_mentioned_p, no_labels_between_p,
no_jumps_between_p, reg_used_between_p, reg_referenced_between_p,
reg_set_p, find_last_value, dead_or_set_regno_p, find_reg_fusage,
find_regno_fusage, pure_call_p, replace_label, rtx_referenced_p_1,
tablejump_p, computed_jump_p, insns_safe_to_move_p,
find_first_parameter_load, can_hoist_insn_p): Likewise.
* sched-deps.c (get_condition, add_dependence, sched_analyze_2,
sched_analyze_insn, sched_analyze, add_forward_dependence): Likewise.
* sched-ebb.c (fix_basic_block_boundaries, add_deps_for_risky_insns,
schedule_ebbs): Likewise.
* sched-rgn.c (is_cfg_nonregular, find_conditional_protection,
is_conditionally_protected, can_schedule_ready_p,
add_branch_dependences, debug_dependencies): Likewise.
* stmt.c (emit_nop, expand_start_case, emit_jump_if_reachable):
Likewise.
* unroll.c (unroll_loop, copy_loop_body, back_branch_in_range_p,
reg_dead_after_loop, loop_find_equiv_value, loop_iterations,
set_dominates_use, ujump_to_loop_cont): Likewise.
* var-tracking.c (prologue_stack_adjust, vt_initialize): Likewise.
* varasm.c (output_constant_pool_1): Likewise.
From-SVN: r84341
2004-07-09 05:29:35 +02:00
|
|
|
|
if (CALL_P (insn))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
fprintf (stats_file, "SMS loop-with-call\n");
|
alias.c (nonlocal_mentioned_p, [...]): Use, LABEL_P, JUMP_P, CALL_P, NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
2004-07-08 Jerry Quinn <jlquinn@optonline.net>
* alias.c (nonlocal_mentioned_p, nonlocal_referenced_p,
nonlocal_set_p, init_alias_analysis): Use, LABEL_P, JUMP_P, CALL_P,
NONJUMP_INSN_P, INSN_P, NOTE_P, BARRIER_P.
* bb-reorder.c (mark_bb_for_unlikely_executed_section,
add_labels_and_missing_jumps, find_jump_block,
fix_crossing_unconditional_branches, add_reg_crossing_jump_notes):
Likewise.
* bt-load.c (btr_referenced_p, compute_defs_uses_and_gen,
link_btr_uses, move_btr_def): Likewise.
* builtins.c (expand_builtin_longjmp, expand_builtin_nonlocal_goto,
expand_builtin_expect_jump): Likewise.
* caller-save.c (save_call_clobbered_regs, insert_one_insn): Likewise.
* calls.c (expand_call, emit_library_call_value_1): Likewise.
* cfganal.c (forwarder_block_p): Likewise.
* cfgbuild.c (inside_basic_block_p, count_basic_blocks,
make_label_edge, rtl_make_eh_edge, make_edges, find_basic_blocks_1,
find_bb_boundaries): Likewise.
* cfgcleanup.c (try_simplify_condjump, try_forward_edges,
merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, insns_match_p,
flow_find_cross_jump, outgoing_edges_match, try_crossjump_to_edge,
try_optimize_cfg): Likewise.
* cfgexpand.c (expand_block, construct_exit_block): Likewise.
* cfglayout.c (skip_insns_after_block, label_for_bb,
record_effective_endpoints, insn_locators_initialize,
fixup_reorder_chain, update_unlikely_executed_notes): Likewise.
* cfgmainloop.c (create_loop_notes): Likewise.
* cfgrtl.c (delete_insn, delete_insn_chain,
create_basic_block_structure, rtl_delete_block, free_bb_for_insn,
update_bb_for_insn, rtl_merge_blocks, rtl_can_merge_blocks,
block_label, try_redirect_by_replacing_jump, last_loop_beg_note,
redirect_branch_edge, force_nonfallthru_and_redirect,
rtl_tidy_fallthru_edge, back_edge_of_syntactic_loop_p,
rtl_split_edge, commit_one_edge_insertion, print_rtl_with_bb,
update_br_prob_note, rtl_verify_flow_info_1, rtl_verify_flow_info,
purge_dead_edges, cfg_layout_redirect_edge_and_branch,
cfg_layout_delete_block, cfg_layout_can_merge_blocks_p,
cfg_layout_merge_blocks, rtl_block_ends_with_call_p,
need_fake_edge_p, rtl_flow_call_edges_add): Likewise.
* combine.c (combine_instructions, can_combine_p, try_combine,
find_split_point, record_dead_and_set_regs, reg_dead_at_p,
distribute_notes, distribute_links, insn_cuid): Likewise.
* cse.c (fold_rtx, cse_insn, cse_around_loop,
invalidate_skipped_block, cse_set_around_loop,
cse_end_of_basic_block, cse_main, cse_basic_block,
cse_condition_code_reg): Likewise.
* cselib.c (cselib_process_insn): Likewise.
* ddg.c (create_ddg): Likewise.
* df.c (df_insn_refs_record, df_bb_rd_local_compute, df_insns_modify):
Likewise.
* dwarf2out.c (dwarf2out_stack_adjust, dwarf2out_frame_debug,
gen_label_die, dwarf2out_var_location): Likewise.
* emit-rtl.c (get_first_nonnote_insn, get_last_nonnote_insn,
next_insn, previous_insn, next_nonnote_insn, prev_nonnote_insn,
last_call_insn, active_insn_p, next_label, prev_label,
link_cc0_insns, next_cc0_user, try_split, add_insn_after,
add_insn_before, remove_insn, add_function_usage_to,
reorder_insns, find_line_note, remove_unnecessary_notes,
emit_insn_after_1, classify_insn): Likewise.
* except.c (convert_from_eh_region_ranges_1, emit_to_new_bb_before,
connect_post_landing_pads, sjlj_mark_call_sites,
sjlj_emit_function_enter, sjlj_emit_function_exit, reachable_handlers,
can_throw_internal, can_throw_external, set_nothrow_function_flags,
convert_to_eh_region_ranges): Likewise.
* explow.c (optimize_save_area_alloca): Likewise.
* expr.c (expand_expr_real): Likewise.
* final.c (insn_current_reference_address, compute_alignments,
shorten_branches, final, scan_ahead_for_unlikely_executed_note,
final_scan_insn, output_asm_label, leaf_function_p): Likewise.
* flow.c (first_insn_after_basic_block_note, delete_dead_jumptables,
propagate_block_delete_insn, propagate_one_insn,
init_propagate_block_info, propagate_block, libcall_dead_p,
mark_set_1, attempt_auto_inc, find_auto_inc, try_pre_increment):
Likewise.
* function.c (instantiate_virtual_regs, reorder_blocks_1,
expand_function_start, expand_function_end, contains,
thread_prologue_and_epilogue_insns,
reposition_prologue_and_epilogue_notes): Likewise.
* gcse.c (constprop_register, bypass_conditional_jumps,
insert_insn_end_bb, gcse_after_reload): Likewise.
* genemit.c (gen_expand, gen_split): Likewise.
* genpeep.c (gen_peephole, main): Likewise.
* global.c (build_insn_chain): Likewise.
* graph.c (node_data, print_rtl_graph_with_bb): Likewise.
* haifa-sched.c (unlink_other_notes, unlink_line_notes,
get_block_head_tail, no_real_insns_p, rm_line_notes, save_line_notes,
restore_line_notes, rm_redundant_line_notes, rm_other_notes,
ok_for_early_queue_removal, set_priorities, sched_init): Likewise.
* ifcvt.c (count_bb_insns, first_active_insn, last_active_insn,
cond_exec_process_insns, end_ifcvt_sequence, noce_process_if_block,
merge_if_block, block_jumps_and_fallthru_p, find_if_block,
dead_or_predicable): Likewise.
* integrate.c (try_constants): Likewise.
* jump.c (rebuild_jump_labels, cleanup_barriers,
purge_line_number_notes, init_label_info, mark_all_labels,
squeeze_notes, get_label_before, get_label_after,
reversed_comparison_code_parts, simplejump_p, pc_set,
returnjump_p, onlyjump_p, follow_jumps, mark_jump_label,
delete_barrier, delete_prior_computation, delete_computation,
delete_related_insns, delete_for_peephole, redirect_jump):
Likewise.
* lcm.c (optimize_mode_switching): Likewise.
* local-alloc.c (validate_equiv_mem, update_equiv_regs, block_alloc):
Likewise.
* loop-doloop.c (doloop_valid_p, doloop_optimize): Likewise.
* loop-invariant.c (find_exits, find_invariants_bb): Likewise.
* loop-iv.c (simplify_using_assignment): Likewise.
* loop.c (compute_luids, loop_optimize, scan_loop, libcall_other_reg,
libcall_benefit, skip_consec_insns, move_movables, prescan_loop,
find_and_verify_loops, labels_in_range_p, for_each_insn_in_loop,
loop_bivs_init_find, strength_reduce, check_insn_for_bivs,
check_insn_for_givs, check_final_value, update_giv_derive,
basic_induction_var, product_cheap_p, check_dbra_loop,
loop_insn_first_p, last_use_this_basic_block,
canonicalize_condition, get_condition, loop_regs_scan, load_mems,
try_copy_prop, LOOP_BLOCK_NUM, loop_dump_aux): Likewise.
* modulo-sched.c (doloop_register_get, find_line_note, sms_schedule,
sms_schedule_by_order): Likewise.
* optabs.c (emit_no_conflict_block, emit_libcall_block): Likewise.
* postreload.c (reload_cse_simplify_operands, reload_combine,
reload_cse_move2add): Likewise.
* predict.c (can_predict_insn_p, estimate_probability,
expected_value_to_br_prob, process_note_predictions): Likewise.
* print-rtl.c (print_rtx, print_rtl, print_rtl_single): Likewise.
* profile.c (branch_prob): Likewise.
* ra-build.c (live_out_1, livethrough_conflicts_bb,
detect_webs_set_in_cond_jump): Likewise.
* ra-debug.c (ra_print_rtx_object, ra_debug_insns,
ra_print_rtl_with_bb): Likewise.
* ra-rewrite.c (insert_stores, rewrite_program2): Likewise.
* recog.c (next_insn_tests_no_inequality, find_single_use,
split_all_insns, peephole2_optimize, if_test_bypass_p): Likewise.
* reg-stack.c (next_flags_user, record_label_references,
emit_swap_insn, swap_rtx_condition, subst_stack_regs,
compensate_edge, convert_regs_1): Likewise.
* regclass.c (scan_one_insn): Likewise.
* regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
regmove_optimize, fixup_match_1, single_set_for_csa,
combine_stack_adjustments_for_block): Likewise.
* regrename.c (build_def_use, copyprop_hardreg_forward_1): Likewise.
* reload.c (find_reloads, find_reloads_address_1, subst_reloads,
find_equiv_reg): Likewise.
* reload1.c (reload, calculate_needs_all_insns, set_label_offsets,
reload_as_needed, emit_input_reload_insns, do_output_reload,
delete_output_reload, delete_address_reloads_1, fixup_abnormal_edges):
Likewise.
* reorg.c (find_end_label, emit_delay_sequence,
delete_from_delay_slot, delete_scheduled_jump, optimize_skip,
get_jump_flags, rare_destination, mostly_true_jump,
try_merge_delay_insns, redundant_insn, own_thread_p,
fill_simple_delay_slots, fill_slots_from_thread,
fill_eager_delay_slots, relax_delay_slots, make_return_insns,
dbr_schedule): Likewise.
* resource.c (find_basic_block, next_insn_no_annul,
find_dead_or_set_registers, mark_target_live_regs): Likewise.
* rtl.h (RTX_PREV): Likewise.
* rtlanal.c (global_reg_mentioned_p, no_labels_between_p,
no_jumps_between_p, reg_used_between_p, reg_referenced_between_p,
reg_set_p, find_last_value, dead_or_set_regno_p, find_reg_fusage,
find_regno_fusage, pure_call_p, replace_label, rtx_referenced_p_1,
tablejump_p, computed_jump_p, insns_safe_to_move_p,
find_first_parameter_load, can_hoist_insn_p): Likewise.
* sched-deps.c (get_condition, add_dependence, sched_analyze_2,
sched_analyze_insn, sched_analyze, add_forward_dependence): Likewise.
* sched-ebb.c (fix_basic_block_boundaries, add_deps_for_risky_insns,
schedule_ebbs): Likewise.
* sched-rgn.c (is_cfg_nonregular, find_conditional_protection,
is_conditionally_protected, can_schedule_ready_p,
add_branch_dependences, debug_dependencies): Likewise.
* stmt.c (emit_nop, expand_start_case, emit_jump_if_reachable):
Likewise.
* unroll.c (unroll_loop, copy_loop_body, back_branch_in_range_p,
reg_dead_after_loop, loop_find_equiv_value, loop_iterations,
set_dominates_use, ujump_to_loop_cont): Likewise.
* var-tracking.c (prologue_stack_adjust, vt_initialize): Likewise.
* varasm.c (output_constant_pool_1): Likewise.
From-SVN: r84341
2004-07-09 05:29:35 +02:00
|
|
|
|
else if (BARRIER_P (insn))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
fprintf (stats_file, "SMS loop-with-barrier\n");
|
|
|
|
|
else
|
|
|
|
|
fprintf (stats_file, "SMS loop-with-not-single-set\n");
|
|
|
|
|
print_rtl_single (stats_file, insn);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (! (g = create_ddg (bb, df, 0)))
|
|
|
|
|
{
|
|
|
|
|
if (stats_file)
|
|
|
|
|
fprintf (stats_file, "SMS doloop\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
g_arr[i] = g;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Release Data Flow analysis data structures. */
|
|
|
|
|
df_finish (df);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* We don't want to perform SMS on new loops - created by versioning. */
|
|
|
|
|
num_loops = loops->num;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
/* Go over the built DDGs and perfrom SMS for each one of them. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
for (i = 0; i < num_loops; i++)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
rtx head, tail;
|
|
|
|
|
rtx count_reg, count_init, comp;
|
|
|
|
|
int mii, rec_mii;
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
unsigned stage_count = 0;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
HOST_WIDEST_INT loop_count = 0;
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
struct loop *loop = loops->parray[i];
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
if (! (g = g_arr[i]))
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if (dump_file)
|
|
|
|
|
print_ddg (dump_file, g);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
get_block_head_tail (loop->header->index, &head, &tail);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
latch_edge = loop_latch_edge (loop);
|
|
|
|
|
gcc_assert (loop->single_exit);
|
|
|
|
|
if (loop->single_exit->count)
|
|
|
|
|
trip_count = latch_edge->count / loop->single_exit->count;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
if (stats_file)
|
|
|
|
|
{
|
|
|
|
|
rtx line_note = find_line_note (tail);
|
|
|
|
|
|
|
|
|
|
if (line_note)
|
2004-06-30 20:21:54 +02:00
|
|
|
|
{
|
|
|
|
|
expanded_location xloc;
|
|
|
|
|
NOTE_EXPANDED_LOCATION (xloc, line_note);
|
|
|
|
|
fprintf (stats_file, "SMS bb %s %d (file, line)\n",
|
|
|
|
|
xloc.file, xloc.line);
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
fprintf (stats_file, "SMS single-bb-loop\n");
|
|
|
|
|
if (profile_info && flag_branch_probabilities)
|
|
|
|
|
{
|
|
|
|
|
fprintf (stats_file, "SMS loop-count ");
|
|
|
|
|
fprintf (stats_file, HOST_WIDEST_INT_PRINT_DEC,
|
|
|
|
|
(HOST_WIDEST_INT) bb->count);
|
|
|
|
|
fprintf (stats_file, "\n");
|
|
|
|
|
fprintf (stats_file, "SMS profile-sum-max ");
|
|
|
|
|
fprintf (stats_file, HOST_WIDEST_INT_PRINT_DEC,
|
|
|
|
|
(HOST_WIDEST_INT) profile_info->sum_max);
|
|
|
|
|
fprintf (stats_file, "\n");
|
|
|
|
|
}
|
|
|
|
|
fprintf (stats_file, "SMS doloop\n");
|
|
|
|
|
fprintf (stats_file, "SMS built-ddg %d\n", g->num_nodes);
|
|
|
|
|
fprintf (stats_file, "SMS num-loads %d\n", g->num_loads);
|
|
|
|
|
fprintf (stats_file, "SMS num-stores %d\n", g->num_stores);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* In case of th loop have doloop register it gets special
|
|
|
|
|
handling. */
|
|
|
|
|
count_init = NULL_RTX;
|
|
|
|
|
if ((count_reg = doloop_register_get (tail, &comp)))
|
|
|
|
|
{
|
|
|
|
|
basic_block pre_header;
|
|
|
|
|
|
|
|
|
|
pre_header = loop_preheader_edge (loop)->src;
|
|
|
|
|
count_init = const_iteration_count (count_reg, pre_header,
|
|
|
|
|
&loop_count);
|
|
|
|
|
}
|
|
|
|
|
gcc_assert (count_reg);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
if (stats_file && count_init)
|
|
|
|
|
{
|
|
|
|
|
fprintf (stats_file, "SMS const-doloop ");
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
fprintf (stats_file, HOST_WIDEST_INT_PRINT_DEC,
|
|
|
|
|
loop_count);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
fprintf (stats_file, "\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
node_order = (int *) xmalloc (sizeof (int) * g->num_nodes);
|
|
|
|
|
|
|
|
|
|
mii = 1; /* Need to pass some estimate of mii. */
|
|
|
|
|
rec_mii = sms_order_nodes (g, mii, node_order);
|
|
|
|
|
mii = MAX (res_MII (g), rec_mii);
|
|
|
|
|
maxii = (calculate_maxii (g) * SMS_MAX_II_FACTOR) / 100;
|
|
|
|
|
|
|
|
|
|
if (stats_file)
|
|
|
|
|
fprintf (stats_file, "SMS iis %d %d %d (rec_mii, mii, maxii)\n",
|
|
|
|
|
rec_mii, mii, maxii);
|
|
|
|
|
|
|
|
|
|
/* After sms_order_nodes and before sms_schedule_by_order, to copy over
|
|
|
|
|
ASAP. */
|
|
|
|
|
set_node_sched_params (g);
|
|
|
|
|
|
|
|
|
|
ps = sms_schedule_by_order (g, mii, maxii, node_order, dump_file);
|
|
|
|
|
|
|
|
|
|
if (ps)
|
|
|
|
|
stage_count = PS_STAGE_COUNT (ps);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Stage count of 1 means that there is no interleaving between
|
|
|
|
|
iterations, let the scheduling passes do the job. */
|
|
|
|
|
if (stage_count < 1
|
|
|
|
|
|| (count_init && (loop_count <= stage_count))
|
|
|
|
|
|| (flag_branch_probabilities && (trip_count <= stage_count)))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
if (dump_file)
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
{
|
|
|
|
|
fprintf (dump_file, "SMS failed... \n");
|
|
|
|
|
fprintf (dump_file, "SMS sched-failed (stage-count=%d, loop-count=", stage_count);
|
|
|
|
|
fprintf (dump_file, HOST_WIDEST_INT_PRINT_DEC, loop_count);
|
|
|
|
|
fprintf (dump_file, ", trip-count=");
|
|
|
|
|
fprintf (dump_file, HOST_WIDEST_INT_PRINT_DEC, trip_count);
|
|
|
|
|
fprintf (dump_file, ")\n");
|
|
|
|
|
}
|
|
|
|
|
continue;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
int orig_cycles = kernel_number_of_cycles (BB_HEAD (g->bb), BB_END (g->bb));
|
|
|
|
|
int new_cycles;
|
|
|
|
|
struct undo_replace_buff_elem *reg_move_replaces;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
if (stats_file)
|
|
|
|
|
{
|
|
|
|
|
fprintf (stats_file,
|
|
|
|
|
"SMS succeeded %d %d (with ii, sc)\n", ps->ii,
|
|
|
|
|
stage_count);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
print_partial_schedule (ps, stats_file);
|
|
|
|
|
fprintf (stats_file,
|
2004-05-25 14:58:32 +02:00
|
|
|
|
"SMS Branch (%d) will later be scheduled at cycle %d.\n",
|
|
|
|
|
g->closing_branch->cuid, PS_MIN_CYCLE (ps) - 1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set the stage boundaries. If the DDG is built with closing_branch_deps,
|
|
|
|
|
the closing_branch was scheduled and should appear in the last (ii-1)
|
|
|
|
|
row. Otherwise, we are free to schedule the branch, and we let nodes
|
|
|
|
|
that were scheduled at the first PS_MIN_CYCLE cycle appear in the first
|
|
|
|
|
row; this should reduce stage_count to minimum. */
|
|
|
|
|
normalize_sched_times (ps);
|
|
|
|
|
rotate_partial_schedule (ps, PS_MIN_CYCLE (ps));
|
|
|
|
|
set_columns_for_ps (ps);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Generate the kernel just to be able to measure its cycles. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
permute_partial_schedule (ps, g->closing_branch->first_note);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
reg_move_replaces = generate_reg_moves (ps);
|
2004-08-08 23:35:53 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Get the number of cycles the new kernel expect to execute in. */
|
|
|
|
|
new_cycles = kernel_number_of_cycles (BB_HEAD (g->bb), BB_END (g->bb));
|
2004-08-08 23:35:53 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Get back to the original loop so we can do loop versioning. */
|
|
|
|
|
undo_permute_partial_schedule (ps, g->closing_branch->first_note);
|
|
|
|
|
if (reg_move_replaces)
|
|
|
|
|
undo_generate_reg_moves (ps, reg_move_replaces);
|
|
|
|
|
|
|
|
|
|
if ( new_cycles >= orig_cycles)
|
|
|
|
|
{
|
|
|
|
|
/* SMS is not profitable so undo the permutation and reg move generation
|
|
|
|
|
and return the kernel to its original state. */
|
|
|
|
|
if (dump_file)
|
|
|
|
|
fprintf (dump_file, "Undoing SMS becuase it is not profitable.\n");
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
canon_loop (loop);
|
|
|
|
|
|
|
|
|
|
/* case the BCT count is not known , Do loop-versioning */
|
|
|
|
|
if (count_reg && ! count_init)
|
|
|
|
|
{
|
|
|
|
|
rtx comp_rtx = gen_rtx_fmt_ee (GT, VOIDmode, count_reg,
|
|
|
|
|
GEN_INT(stage_count));
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
nloop = loop_version (loops, loop, comp_rtx, &condition_bb);
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Set new iteration count of loop kernel. */
|
|
|
|
|
if (count_reg && count_init)
|
|
|
|
|
SET_SRC (single_set (count_init)) = GEN_INT (loop_count
|
|
|
|
|
- stage_count + 1);
|
|
|
|
|
|
|
|
|
|
/* Now apply the scheduled kernel to the RTL of the loop. */
|
|
|
|
|
permute_partial_schedule (ps, g->closing_branch->first_note);
|
|
|
|
|
|
|
|
|
|
/* Mark this loop as software pipelined so the later
|
|
|
|
|
scheduling passes doesn't touch it. */
|
|
|
|
|
if (! flag_resched_modulo_sched)
|
|
|
|
|
g->bb->flags |= BB_DISABLE_SCHEDULE;
|
|
|
|
|
/* The life-info is not valid any more. */
|
|
|
|
|
g->bb->flags |= BB_DIRTY;
|
|
|
|
|
|
|
|
|
|
reg_move_replaces = generate_reg_moves (ps);
|
|
|
|
|
if (dump_file)
|
|
|
|
|
print_node_sched_params (dump_file, g->num_nodes);
|
|
|
|
|
/* Generate prolog and epilog. */
|
|
|
|
|
if (count_reg && !count_init)
|
|
|
|
|
generate_prolog_epilog (ps, loop, count_reg);
|
|
|
|
|
else
|
|
|
|
|
generate_prolog_epilog (ps, loop, NULL_RTX);
|
|
|
|
|
}
|
|
|
|
|
free_undo_replace_buff (reg_move_replaces);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
free_partial_schedule (ps);
|
|
|
|
|
free (node_sched_params);
|
|
|
|
|
free (node_order);
|
|
|
|
|
free_ddg (g);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Release scheduler data, needed until now because of DFA. */
|
|
|
|
|
sched_finish ();
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
loop_optimizer_finalize (loops, dump_file);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The SMS scheduling algorithm itself
|
|
|
|
|
-----------------------------------
|
|
|
|
|
Input: 'O' an ordered list of insns of a loop.
|
|
|
|
|
Output: A scheduling of the loop - kernel, prolog, and epilogue.
|
|
|
|
|
|
|
|
|
|
'Q' is the empty Set
|
|
|
|
|
'PS' is the partial schedule; it holds the currently scheduled nodes with
|
|
|
|
|
their cycle/slot.
|
|
|
|
|
'PSP' previously scheduled predecessors.
|
|
|
|
|
'PSS' previously scheduled successors.
|
|
|
|
|
't(u)' the cycle where u is scheduled.
|
|
|
|
|
'l(u)' is the latency of u.
|
|
|
|
|
'd(v,u)' is the dependence distance from v to u.
|
|
|
|
|
'ASAP(u)' the earliest time at which u could be scheduled as computed in
|
|
|
|
|
the node ordering phase.
|
|
|
|
|
'check_hardware_resources_conflicts(u, PS, c)'
|
|
|
|
|
run a trace around cycle/slot through DFA model
|
|
|
|
|
to check resource conflicts involving instruction u
|
|
|
|
|
at cycle c given the partial schedule PS.
|
|
|
|
|
'add_to_partial_schedule_at_time(u, PS, c)'
|
|
|
|
|
Add the node/instruction u to the partial schedule
|
|
|
|
|
PS at time c.
|
|
|
|
|
'calculate_register_pressure(PS)'
|
|
|
|
|
Given a schedule of instructions, calculate the register
|
|
|
|
|
pressure it implies. One implementation could be the
|
|
|
|
|
maximum number of overlapping live ranges.
|
|
|
|
|
'maxRP' The maximum allowed register pressure, it is usually derived from the number
|
|
|
|
|
registers available in the hardware.
|
|
|
|
|
|
|
|
|
|
1. II = MII.
|
|
|
|
|
2. PS = empty list
|
|
|
|
|
3. for each node u in O in pre-computed order
|
|
|
|
|
4. if (PSP(u) != Q && PSS(u) == Q) then
|
|
|
|
|
5. Early_start(u) = max ( t(v) + l(v) - d(v,u)*II ) over all every v in PSP(u).
|
|
|
|
|
6. start = Early_start; end = Early_start + II - 1; step = 1
|
|
|
|
|
11. else if (PSP(u) == Q && PSS(u) != Q) then
|
|
|
|
|
12. Late_start(u) = min ( t(v) - l(v) + d(v,u)*II ) over all every v in PSS(u).
|
|
|
|
|
13. start = Late_start; end = Late_start - II + 1; step = -1
|
|
|
|
|
14. else if (PSP(u) != Q && PSS(u) != Q) then
|
|
|
|
|
15. Early_start(u) = max ( t(v) + l(v) - d(v,u)*II ) over all every v in PSP(u).
|
|
|
|
|
16. Late_start(u) = min ( t(v) - l(v) + d(v,u)*II ) over all every v in PSS(u).
|
|
|
|
|
17. start = Early_start;
|
|
|
|
|
18. end = min(Early_start + II - 1 , Late_start);
|
|
|
|
|
19. step = 1
|
|
|
|
|
20. else "if (PSP(u) == Q && PSS(u) == Q)"
|
|
|
|
|
21. start = ASAP(u); end = start + II - 1; step = 1
|
|
|
|
|
22. endif
|
|
|
|
|
|
|
|
|
|
23. success = false
|
|
|
|
|
24. for (c = start ; c != end ; c += step)
|
|
|
|
|
25. if check_hardware_resources_conflicts(u, PS, c) then
|
|
|
|
|
26. add_to_partial_schedule_at_time(u, PS, c)
|
|
|
|
|
27. success = true
|
|
|
|
|
28. break
|
|
|
|
|
29. endif
|
|
|
|
|
30. endfor
|
|
|
|
|
31. if (success == false) then
|
|
|
|
|
32. II = II + 1
|
|
|
|
|
33. if (II > maxII) then
|
|
|
|
|
34. finish - failed to schedule
|
|
|
|
|
35. endif
|
|
|
|
|
36. goto 2.
|
|
|
|
|
37. endif
|
|
|
|
|
38. endfor
|
|
|
|
|
39. if (calculate_register_pressure(PS) > maxRP) then
|
|
|
|
|
40. goto 32.
|
|
|
|
|
41. endif
|
|
|
|
|
42. compute epilogue & prologue
|
|
|
|
|
43. finish - succeeded to schedule
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* A limit on the number of cycles that resource conflicts can span. ??? Should
|
|
|
|
|
be provided by DFA, and be dependent on the type of insn scheduled. Currently
|
|
|
|
|
set to 0 to save compile time. */
|
|
|
|
|
#define DFA_HISTORY SMS_DFA_HISTORY
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Given the partial schedule PS, this function calculates and returns the
|
2005-04-03 16:09:57 +02:00
|
|
|
|
cycles in which we can schedule the node with the given index I.
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
NOTE: Here we do the backtracking in SMS, in some special cases. We have
|
|
|
|
|
noticed that there are several cases in which we fail to SMS the loop
|
|
|
|
|
because the sched window of a node is empty due to tight data-deps. In
|
2005-04-03 16:09:57 +02:00
|
|
|
|
such cases we want to unschedule some of the predecessors/successors
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
until we get non-empty scheduling window. It returns -1 if the
|
|
|
|
|
scheduling window is empty and zero otherwise. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
get_sched_window (partial_schedule_ptr ps, int *nodes_order, int i,
|
|
|
|
|
sbitmap sched_nodes, int ii, int *start_p, int *step_p, int *end_p)
|
|
|
|
|
{
|
|
|
|
|
int start, step, end;
|
|
|
|
|
ddg_edge_ptr e;
|
|
|
|
|
int u = nodes_order [i];
|
|
|
|
|
ddg_node_ptr u_node = &ps->g->nodes[u];
|
|
|
|
|
sbitmap psp = sbitmap_alloc (ps->g->num_nodes);
|
|
|
|
|
sbitmap pss = sbitmap_alloc (ps->g->num_nodes);
|
|
|
|
|
sbitmap u_node_preds = NODE_PREDECESSORS (u_node);
|
|
|
|
|
sbitmap u_node_succs = NODE_SUCCESSORS (u_node);
|
|
|
|
|
int psp_not_empty;
|
|
|
|
|
int pss_not_empty;
|
|
|
|
|
|
|
|
|
|
/* 1. compute sched window for u (start, end, step). */
|
|
|
|
|
sbitmap_zero (psp);
|
|
|
|
|
sbitmap_zero (pss);
|
|
|
|
|
psp_not_empty = sbitmap_a_and_b_cg (psp, u_node_preds, sched_nodes);
|
|
|
|
|
pss_not_empty = sbitmap_a_and_b_cg (pss, u_node_succs, sched_nodes);
|
|
|
|
|
|
|
|
|
|
if (psp_not_empty && !pss_not_empty)
|
|
|
|
|
{
|
|
|
|
|
int early_start = INT_MIN;
|
|
|
|
|
|
|
|
|
|
end = INT_MAX;
|
|
|
|
|
for (e = u_node->in; e != 0; e = e->next_in)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr v_node = e->src;
|
|
|
|
|
if (TEST_BIT (sched_nodes, v_node->cuid))
|
|
|
|
|
{
|
|
|
|
|
int node_st = SCHED_TIME (v_node)
|
|
|
|
|
+ e->latency - (e->distance * ii);
|
|
|
|
|
|
|
|
|
|
early_start = MAX (early_start, node_st);
|
|
|
|
|
|
|
|
|
|
if (e->data_type == MEM_DEP)
|
|
|
|
|
end = MIN (end, SCHED_TIME (v_node) + ii - 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
start = early_start;
|
|
|
|
|
end = MIN (end, early_start + ii);
|
|
|
|
|
step = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else if (!psp_not_empty && pss_not_empty)
|
|
|
|
|
{
|
|
|
|
|
int late_start = INT_MAX;
|
|
|
|
|
|
|
|
|
|
end = INT_MIN;
|
|
|
|
|
for (e = u_node->out; e != 0; e = e->next_out)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr v_node = e->dest;
|
|
|
|
|
if (TEST_BIT (sched_nodes, v_node->cuid))
|
|
|
|
|
{
|
|
|
|
|
late_start = MIN (late_start,
|
|
|
|
|
SCHED_TIME (v_node) - e->latency
|
|
|
|
|
+ (e->distance * ii));
|
|
|
|
|
if (e->data_type == MEM_DEP)
|
|
|
|
|
end = MAX (end, SCHED_TIME (v_node) - ii + 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
start = late_start;
|
|
|
|
|
end = MAX (end, late_start - ii);
|
|
|
|
|
step = -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else if (psp_not_empty && pss_not_empty)
|
|
|
|
|
{
|
|
|
|
|
int early_start = INT_MIN;
|
|
|
|
|
int late_start = INT_MAX;
|
|
|
|
|
|
|
|
|
|
start = INT_MIN;
|
|
|
|
|
end = INT_MAX;
|
|
|
|
|
for (e = u_node->in; e != 0; e = e->next_in)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr v_node = e->src;
|
|
|
|
|
|
|
|
|
|
if (TEST_BIT (sched_nodes, v_node->cuid))
|
|
|
|
|
{
|
|
|
|
|
early_start = MAX (early_start,
|
|
|
|
|
SCHED_TIME (v_node) + e->latency
|
|
|
|
|
- (e->distance * ii));
|
|
|
|
|
if (e->data_type == MEM_DEP)
|
|
|
|
|
end = MIN (end, SCHED_TIME (v_node) + ii - 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
for (e = u_node->out; e != 0; e = e->next_out)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr v_node = e->dest;
|
|
|
|
|
|
|
|
|
|
if (TEST_BIT (sched_nodes, v_node->cuid))
|
|
|
|
|
{
|
|
|
|
|
late_start = MIN (late_start,
|
|
|
|
|
SCHED_TIME (v_node) - e->latency
|
|
|
|
|
+ (e->distance * ii));
|
|
|
|
|
if (e->data_type == MEM_DEP)
|
|
|
|
|
start = MAX (start, SCHED_TIME (v_node) - ii + 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
start = MAX (start, early_start);
|
|
|
|
|
end = MIN (end, MIN (early_start + ii, late_start + 1));
|
|
|
|
|
step = 1;
|
|
|
|
|
}
|
|
|
|
|
else /* psp is empty && pss is empty. */
|
|
|
|
|
{
|
|
|
|
|
start = SCHED_ASAP (u_node);
|
|
|
|
|
end = start + ii;
|
|
|
|
|
step = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*start_p = start;
|
|
|
|
|
*step_p = step;
|
|
|
|
|
*end_p = end;
|
|
|
|
|
sbitmap_free (psp);
|
|
|
|
|
sbitmap_free (pss);
|
|
|
|
|
|
|
|
|
|
if ((start >= end && step == 1) || (start <= end && step == -1))
|
|
|
|
|
return -1;
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function implements the scheduling algorithm for SMS according to the
|
|
|
|
|
above algorithm. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
static partial_schedule_ptr
|
|
|
|
|
sms_schedule_by_order (ddg_ptr g, int mii, int maxii, int *nodes_order, FILE *dump_file)
|
|
|
|
|
{
|
|
|
|
|
int ii = mii;
|
|
|
|
|
int i, c, success;
|
|
|
|
|
int try_again_with_larger_ii = true;
|
|
|
|
|
int num_nodes = g->num_nodes;
|
|
|
|
|
ddg_edge_ptr e;
|
|
|
|
|
int start, end, step; /* Place together into one struct? */
|
|
|
|
|
sbitmap sched_nodes = sbitmap_alloc (num_nodes);
|
2004-08-08 23:35:53 +02:00
|
|
|
|
sbitmap must_precede = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap must_follow = sbitmap_alloc (num_nodes);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
sbitmap tobe_scheduled = sbitmap_alloc (num_nodes);
|
2004-08-08 23:35:53 +02:00
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
partial_schedule_ptr ps = create_partial_schedule (ii, g, DFA_HISTORY);
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
sbitmap_ones (tobe_scheduled);
|
|
|
|
|
sbitmap_zero (sched_nodes);
|
|
|
|
|
|
|
|
|
|
while ((! sbitmap_equal (tobe_scheduled, sched_nodes)
|
|
|
|
|
|| try_again_with_larger_ii ) && ii < maxii)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
int j;
|
|
|
|
|
bool unscheduled_nodes = false;
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
if (dump_file)
|
|
|
|
|
fprintf(dump_file, "Starting with ii=%d\n", ii);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (try_again_with_larger_ii)
|
|
|
|
|
{
|
|
|
|
|
try_again_with_larger_ii = false;
|
|
|
|
|
sbitmap_zero (sched_nodes);
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < num_nodes; i++)
|
|
|
|
|
{
|
|
|
|
|
int u = nodes_order[i];
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
ddg_node_ptr u_node = &ps->g->nodes[u];
|
2004-05-25 14:58:32 +02:00
|
|
|
|
rtx insn = u_node->insn;
|
|
|
|
|
|
|
|
|
|
if (!INSN_P (insn))
|
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
RESET_BIT (tobe_scheduled, u);
|
|
|
|
|
continue;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (JUMP_P (insn)) /* Closing branch handled later. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
RESET_BIT (tobe_scheduled, u);
|
|
|
|
|
continue;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
if (TEST_BIT (sched_nodes, u))
|
|
|
|
|
continue;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Try to get non-empty scheduling window. */
|
|
|
|
|
j = i;
|
|
|
|
|
while (get_sched_window (ps, nodes_order, i, sched_nodes, ii, &start, &step, &end) < 0
|
|
|
|
|
&& j > 0)
|
|
|
|
|
{
|
|
|
|
|
unscheduled_nodes = true;
|
|
|
|
|
if (TEST_BIT (NODE_PREDECESSORS (u_node), nodes_order[j - 1])
|
|
|
|
|
|| TEST_BIT (NODE_SUCCESSORS (u_node), nodes_order[j - 1]))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
ps_unschedule_node (ps, &ps->g->nodes[nodes_order[j - 1]]);
|
|
|
|
|
RESET_BIT (sched_nodes, nodes_order [j - 1]);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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j--;
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2004-05-25 14:58:32 +02:00
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}
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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if (j < 0)
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2004-05-25 14:58:32 +02:00
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{
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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/* ??? Try backtracking instead of immediately ii++? */
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ii++;
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try_again_with_larger_ii = true;
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reset_partial_schedule (ps, ii);
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break;
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2004-05-25 14:58:32 +02:00
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}
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/* 2. Try scheduling u in window. */
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if (dump_file)
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fprintf(dump_file, "Trying to schedule node %d in (%d .. %d) step %d\n",
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u, start, end, step);
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2004-08-08 23:35:53 +02:00
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/* use must_follow & must_precede bitmaps to determine order
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of nodes within the cycle. */
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sbitmap_zero (must_precede);
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sbitmap_zero (must_follow);
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for (e = u_node->in; e != 0; e = e->next_in)
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if (TEST_BIT (sched_nodes, e->src->cuid)
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&& e->latency == (ii * e->distance)
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&& start == SCHED_TIME (e->src))
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SET_BIT (must_precede, e->src->cuid);
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for (e = u_node->out; e != 0; e = e->next_out)
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if (TEST_BIT (sched_nodes, e->dest->cuid)
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&& e->latency == (ii * e->distance)
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&& end == SCHED_TIME (e->dest))
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SET_BIT (must_follow, e->dest->cuid);
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2004-05-25 14:58:32 +02:00
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success = 0;
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if ((step > 0 && start < end) || (step < 0 && start > end))
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for (c = start; c != end; c += step)
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{
|
2004-08-08 23:35:53 +02:00
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ps_insn_ptr psi;
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psi = ps_add_node_check_conflicts (ps, u_node, c,
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must_precede,
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must_follow);
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2004-05-25 14:58:32 +02:00
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if (psi)
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{
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SCHED_TIME (u_node) = c;
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SET_BIT (sched_nodes, u);
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success = 1;
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if (dump_file)
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fprintf(dump_file, "Schedule in %d\n", c);
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break;
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}
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}
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if (!success)
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{
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/* ??? Try backtracking instead of immediately ii++? */
|
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ii++;
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try_again_with_larger_ii = true;
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reset_partial_schedule (ps, ii);
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break;
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}
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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if (unscheduled_nodes)
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break;
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2004-05-25 14:58:32 +02:00
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/* ??? If (success), check register pressure estimates. */
|
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} /* Continue with next node. */
|
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} /* While try_again_with_larger_ii. */
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sbitmap_free (sched_nodes);
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if (ii >= maxii)
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{
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free_partial_schedule (ps);
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ps = NULL;
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}
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return ps;
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}
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/* This page implements the algorithm for ordering the nodes of a DDG
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for modulo scheduling, activated through the
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"int sms_order_nodes (ddg_ptr, int mii, int * result)" API. */
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#define ORDER_PARAMS(x) ((struct node_order_params *) (x)->aux.info)
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#define ASAP(x) (ORDER_PARAMS ((x))->asap)
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#define ALAP(x) (ORDER_PARAMS ((x))->alap)
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#define HEIGHT(x) (ORDER_PARAMS ((x))->height)
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#define MOB(x) (ALAP ((x)) - ASAP ((x)))
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#define DEPTH(x) (ASAP ((x)))
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typedef struct node_order_params * nopa;
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static void order_nodes_of_sccs (ddg_all_sccs_ptr, int * result);
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static int order_nodes_in_scc (ddg_ptr, sbitmap, sbitmap, int*, int);
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static nopa calculate_order_params (ddg_ptr, int mii);
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static int find_max_asap (ddg_ptr, sbitmap);
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static int find_max_hv_min_mob (ddg_ptr, sbitmap);
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static int find_max_dv_min_mob (ddg_ptr, sbitmap);
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enum sms_direction {BOTTOMUP, TOPDOWN};
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struct node_order_params
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{
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int asap;
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int alap;
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int height;
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};
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/* Check if NODE_ORDER contains a permutation of 0 .. NUM_NODES-1. */
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static void
|
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check_nodes_order (int *node_order, int num_nodes)
|
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{
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int i;
|
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sbitmap tmp = sbitmap_alloc (num_nodes);
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sbitmap_zero (tmp);
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for (i = 0; i < num_nodes; i++)
|
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{
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int u = node_order[i];
|
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|
alias.c (true_dependence): Remove 'abort' from comments.
* alias.c (true_dependence): Remove 'abort' from comments. Use
gcc_assert and gcc_unreachable as appropriate.
(canon_true_dependence): Likewise.
* bb-reorder.c (connect_traces): Likewise.
* c-common.c (c_add_case_label): Likewise.
* c-decl.c (finish_function): Likewise.
* caller-save.c (insert_restore, insert_save): Likewise.
* cfg.c (update_bb_profile_for_threading): Likewise.
* cfganal.c (flow_active_insn_p): Likewise.
* cfgexpand.c (add_reg_br_prob_note): Likewise.
* cfgrtl.c (rtl_redirect_edge_and_branch_force, rtl_split_edge,
cfg_layout_merge_blocks): Likewise.
* ifcvt.c (cond_exec_process_insns, merge_if_block,
find_if_block): Likewise.
* integrate.c (allocate_initial_values): Likewise.
* jump.c (reverse_condition, reverse_condition_maybe_unordered,
swap_condition, unsigned_condition, signed_condition,
mark_jump_label, invert_jump_1, rtx_renumbered_equal_p,
reg_or_subregno): Likewise.
* lambda-code.c (lambda_compute_auxillary_space,
lambda_transform_legal_p): Likewise.
* lambda-mat.c (lambda_matrix_inverse_hard): Likewise.
* langhooks.c (lhd_set_decl_assembler_name, lhd_type_promotes_to,
lhd_incomplete_type_error, lhd_expand_expr,
lhd_types_compatible_p, lhd_tree_size): Likewise.
* lcm.c (create_pre_exit, optimize_mode_switching): Likewise.
* local-alloc.c (update_equiv_regs): Likewise.
* loop-unroll.c (peel_loop_completely
unroll_loop_constant_iterations, unroll_loop_runtime_iterations,
peel_loop_simple, unroll_loop_stupid,
analyze_iv_to_split_insn): Likewise.
* loop.c (gen_prefetch, find_and_verify_loops,
basic_induction_var): Likewise.
* modulo-sched.c (normalize_sched_times, check_nodes_order): Likewise.
* value-prof.c (tree_find_values_to_profile): Likewise.
* varasm.c (named_section, default_assemble_integer,
decode_addr_const): Likewise.
From-SVN: r98508
2005-04-21 17:47:33 +02:00
|
|
|
|
gcc_assert (u < num_nodes && u >= 0 && !TEST_BIT (tmp, u));
|
2004-05-25 14:58:32 +02:00
|
|
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|
SET_BIT (tmp, u);
|
|
|
|
|
}
|
|
|
|
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|
|
sbitmap_free (tmp);
|
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|
|
}
|
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/* Order the nodes of G for scheduling and pass the result in
|
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|
NODE_ORDER. Also set aux.count of each node to ASAP.
|
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|
|
Return the recMII for the given DDG. */
|
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|
static int
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sms_order_nodes (ddg_ptr g, int mii, int * node_order)
|
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|
{
|
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|
|
int i;
|
|
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|
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int rec_mii = 0;
|
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ddg_all_sccs_ptr sccs = create_ddg_all_sccs (g);
|
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nopa nops = calculate_order_params (g, mii);
|
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order_nodes_of_sccs (sccs, node_order);
|
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|
|
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|
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if (sccs->num_sccs > 0)
|
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/* First SCC has the largest recurrence_length. */
|
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|
|
rec_mii = sccs->sccs[0]->recurrence_length;
|
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/* Save ASAP before destroying node_order_params. */
|
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for (i = 0; i < g->num_nodes; i++)
|
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|
|
{
|
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ddg_node_ptr v = &g->nodes[i];
|
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|
v->aux.count = ASAP (v);
|
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|
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}
|
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free (nops);
|
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|
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free_ddg_all_sccs (sccs);
|
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check_nodes_order (node_order, g->num_nodes);
|
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|
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|
return rec_mii;
|
|
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|
|
}
|
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static void
|
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|
|
order_nodes_of_sccs (ddg_all_sccs_ptr all_sccs, int * node_order)
|
|
|
|
|
{
|
|
|
|
|
int i, pos = 0;
|
|
|
|
|
ddg_ptr g = all_sccs->ddg;
|
|
|
|
|
int num_nodes = g->num_nodes;
|
|
|
|
|
sbitmap prev_sccs = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap on_path = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap tmp = sbitmap_alloc (num_nodes);
|
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|
|
|
sbitmap ones = sbitmap_alloc (num_nodes);
|
|
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|
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|
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sbitmap_zero (prev_sccs);
|
|
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|
|
sbitmap_ones (ones);
|
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|
|
|
|
|
|
|
|
/* Perfrom the node ordering starting from the SCC with the highest recMII.
|
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|
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|
For each SCC order the nodes according to their ASAP/ALAP/HEIGHT etc. */
|
|
|
|
|
for (i = 0; i < all_sccs->num_sccs; i++)
|
|
|
|
|
{
|
|
|
|
|
ddg_scc_ptr scc = all_sccs->sccs[i];
|
|
|
|
|
|
|
|
|
|
/* Add nodes on paths from previous SCCs to the current SCC. */
|
|
|
|
|
find_nodes_on_paths (on_path, g, prev_sccs, scc->nodes);
|
|
|
|
|
sbitmap_a_or_b (tmp, scc->nodes, on_path);
|
|
|
|
|
|
|
|
|
|
/* Add nodes on paths from the current SCC to previous SCCs. */
|
|
|
|
|
find_nodes_on_paths (on_path, g, scc->nodes, prev_sccs);
|
|
|
|
|
sbitmap_a_or_b (tmp, tmp, on_path);
|
|
|
|
|
|
|
|
|
|
/* Remove nodes of previous SCCs from current extended SCC. */
|
|
|
|
|
sbitmap_difference (tmp, tmp, prev_sccs);
|
|
|
|
|
|
|
|
|
|
pos = order_nodes_in_scc (g, prev_sccs, tmp, node_order, pos);
|
|
|
|
|
/* Above call to order_nodes_in_scc updated prev_sccs |= tmp. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the remaining nodes that do not belong to any scc. Each call
|
|
|
|
|
to order_nodes_in_scc handles a single connected component. */
|
|
|
|
|
while (pos < g->num_nodes)
|
|
|
|
|
{
|
|
|
|
|
sbitmap_difference (tmp, ones, prev_sccs);
|
|
|
|
|
pos = order_nodes_in_scc (g, prev_sccs, tmp, node_order, pos);
|
|
|
|
|
}
|
|
|
|
|
sbitmap_free (prev_sccs);
|
|
|
|
|
sbitmap_free (on_path);
|
|
|
|
|
sbitmap_free (tmp);
|
|
|
|
|
sbitmap_free (ones);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* MII is needed if we consider backarcs (that do not close recursive cycles). */
|
|
|
|
|
static struct node_order_params *
|
|
|
|
|
calculate_order_params (ddg_ptr g, int mii ATTRIBUTE_UNUSED)
|
|
|
|
|
{
|
|
|
|
|
int u;
|
|
|
|
|
int max_asap;
|
|
|
|
|
int num_nodes = g->num_nodes;
|
|
|
|
|
ddg_edge_ptr e;
|
|
|
|
|
/* Allocate a place to hold ordering params for each node in the DDG. */
|
|
|
|
|
nopa node_order_params_arr;
|
|
|
|
|
|
|
|
|
|
/* Initialize of ASAP/ALAP/HEIGHT to zero. */
|
|
|
|
|
node_order_params_arr = (nopa) xcalloc (num_nodes,
|
|
|
|
|
sizeof (struct node_order_params));
|
|
|
|
|
|
c-typeck.c, [...]: Fix comment typos.
* c-typeck.c, cfgexpand.c, ddg.c, ddg.h, df.c, fold-const.c,
gcov.c, gimplify.c, modulo-sched.c, passes.c, tree-cfg.c,
tree-mudflap.c, tree-nrv.c, tree-outof-ssa.c, tree-ssa-dom.c,
tree-ssa-dse.c, tree-ssa-operands.c, tree-ssa-pre.c,
tree-tailcall.c: Fix comment typos. Follow spelling
conventions.
From-SVN: r83703
2004-06-26 07:03:55 +02:00
|
|
|
|
/* Set the aux pointer of each node to point to its order_params structure. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
for (u = 0; u < num_nodes; u++)
|
|
|
|
|
g->nodes[u].aux.info = &node_order_params_arr[u];
|
|
|
|
|
|
|
|
|
|
/* Disregarding a backarc from each recursive cycle to obtain a DAG,
|
|
|
|
|
calculate ASAP, ALAP, mobility, distance, and height for each node
|
|
|
|
|
in the dependence (direct acyclic) graph. */
|
|
|
|
|
|
|
|
|
|
/* We assume that the nodes in the array are in topological order. */
|
|
|
|
|
|
|
|
|
|
max_asap = 0;
|
|
|
|
|
for (u = 0; u < num_nodes; u++)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u_node = &g->nodes[u];
|
|
|
|
|
|
|
|
|
|
ASAP (u_node) = 0;
|
|
|
|
|
for (e = u_node->in; e; e = e->next_in)
|
|
|
|
|
if (e->distance == 0)
|
|
|
|
|
ASAP (u_node) = MAX (ASAP (u_node),
|
|
|
|
|
ASAP (e->src) + e->latency);
|
|
|
|
|
max_asap = MAX (max_asap, ASAP (u_node));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (u = num_nodes - 1; u > -1; u--)
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u_node = &g->nodes[u];
|
|
|
|
|
|
|
|
|
|
ALAP (u_node) = max_asap;
|
|
|
|
|
HEIGHT (u_node) = 0;
|
|
|
|
|
for (e = u_node->out; e; e = e->next_out)
|
|
|
|
|
if (e->distance == 0)
|
|
|
|
|
{
|
|
|
|
|
ALAP (u_node) = MIN (ALAP (u_node),
|
|
|
|
|
ALAP (e->dest) - e->latency);
|
|
|
|
|
HEIGHT (u_node) = MAX (HEIGHT (u_node),
|
|
|
|
|
HEIGHT (e->dest) + e->latency);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return node_order_params_arr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
find_max_asap (ddg_ptr g, sbitmap nodes)
|
|
|
|
|
{
|
|
|
|
|
int u;
|
|
|
|
|
int max_asap = -1;
|
|
|
|
|
int result = -1;
|
|
|
|
|
|
|
|
|
|
EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, u,
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u_node = &g->nodes[u];
|
|
|
|
|
|
|
|
|
|
if (max_asap < ASAP (u_node))
|
|
|
|
|
{
|
|
|
|
|
max_asap = ASAP (u_node);
|
|
|
|
|
result = u;
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
find_max_hv_min_mob (ddg_ptr g, sbitmap nodes)
|
|
|
|
|
{
|
|
|
|
|
int u;
|
|
|
|
|
int max_hv = -1;
|
|
|
|
|
int min_mob = INT_MAX;
|
|
|
|
|
int result = -1;
|
|
|
|
|
|
|
|
|
|
EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, u,
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u_node = &g->nodes[u];
|
|
|
|
|
|
|
|
|
|
if (max_hv < HEIGHT (u_node))
|
|
|
|
|
{
|
|
|
|
|
max_hv = HEIGHT (u_node);
|
|
|
|
|
min_mob = MOB (u_node);
|
|
|
|
|
result = u;
|
|
|
|
|
}
|
|
|
|
|
else if ((max_hv == HEIGHT (u_node))
|
|
|
|
|
&& (min_mob > MOB (u_node)))
|
|
|
|
|
{
|
|
|
|
|
min_mob = MOB (u_node);
|
|
|
|
|
result = u;
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
find_max_dv_min_mob (ddg_ptr g, sbitmap nodes)
|
|
|
|
|
{
|
|
|
|
|
int u;
|
|
|
|
|
int max_dv = -1;
|
|
|
|
|
int min_mob = INT_MAX;
|
|
|
|
|
int result = -1;
|
|
|
|
|
|
|
|
|
|
EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, u,
|
|
|
|
|
{
|
|
|
|
|
ddg_node_ptr u_node = &g->nodes[u];
|
|
|
|
|
|
|
|
|
|
if (max_dv < DEPTH (u_node))
|
|
|
|
|
{
|
|
|
|
|
max_dv = DEPTH (u_node);
|
|
|
|
|
min_mob = MOB (u_node);
|
|
|
|
|
result = u;
|
|
|
|
|
}
|
|
|
|
|
else if ((max_dv == DEPTH (u_node))
|
|
|
|
|
&& (min_mob > MOB (u_node)))
|
|
|
|
|
{
|
|
|
|
|
min_mob = MOB (u_node);
|
|
|
|
|
result = u;
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Places the nodes of SCC into the NODE_ORDER array starting
|
|
|
|
|
at position POS, according to the SMS ordering algorithm.
|
|
|
|
|
NODES_ORDERED (in&out parameter) holds the bitset of all nodes in
|
|
|
|
|
the NODE_ORDER array, starting from position zero. */
|
|
|
|
|
static int
|
|
|
|
|
order_nodes_in_scc (ddg_ptr g, sbitmap nodes_ordered, sbitmap scc,
|
|
|
|
|
int * node_order, int pos)
|
|
|
|
|
{
|
|
|
|
|
enum sms_direction dir;
|
|
|
|
|
int num_nodes = g->num_nodes;
|
|
|
|
|
sbitmap workset = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap tmp = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap zero_bitmap = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap predecessors = sbitmap_alloc (num_nodes);
|
|
|
|
|
sbitmap successors = sbitmap_alloc (num_nodes);
|
|
|
|
|
|
|
|
|
|
sbitmap_zero (predecessors);
|
|
|
|
|
find_predecessors (predecessors, g, nodes_ordered);
|
|
|
|
|
|
|
|
|
|
sbitmap_zero (successors);
|
|
|
|
|
find_successors (successors, g, nodes_ordered);
|
|
|
|
|
|
|
|
|
|
sbitmap_zero (tmp);
|
|
|
|
|
if (sbitmap_a_and_b_cg (tmp, predecessors, scc))
|
|
|
|
|
{
|
|
|
|
|
sbitmap_copy (workset, tmp);
|
|
|
|
|
dir = BOTTOMUP;
|
|
|
|
|
}
|
|
|
|
|
else if (sbitmap_a_and_b_cg (tmp, successors, scc))
|
|
|
|
|
{
|
|
|
|
|
sbitmap_copy (workset, tmp);
|
|
|
|
|
dir = TOPDOWN;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int u;
|
|
|
|
|
|
|
|
|
|
sbitmap_zero (workset);
|
|
|
|
|
if ((u = find_max_asap (g, scc)) >= 0)
|
|
|
|
|
SET_BIT (workset, u);
|
|
|
|
|
dir = BOTTOMUP;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sbitmap_zero (zero_bitmap);
|
|
|
|
|
while (!sbitmap_equal (workset, zero_bitmap))
|
|
|
|
|
{
|
|
|
|
|
int v;
|
|
|
|
|
ddg_node_ptr v_node;
|
|
|
|
|
sbitmap v_node_preds;
|
|
|
|
|
sbitmap v_node_succs;
|
|
|
|
|
|
|
|
|
|
if (dir == TOPDOWN)
|
|
|
|
|
{
|
|
|
|
|
while (!sbitmap_equal (workset, zero_bitmap))
|
|
|
|
|
{
|
|
|
|
|
v = find_max_hv_min_mob (g, workset);
|
|
|
|
|
v_node = &g->nodes[v];
|
|
|
|
|
node_order[pos++] = v;
|
|
|
|
|
v_node_succs = NODE_SUCCESSORS (v_node);
|
|
|
|
|
sbitmap_a_and_b (tmp, v_node_succs, scc);
|
|
|
|
|
|
|
|
|
|
/* Don't consider the already ordered successors again. */
|
|
|
|
|
sbitmap_difference (tmp, tmp, nodes_ordered);
|
|
|
|
|
sbitmap_a_or_b (workset, workset, tmp);
|
|
|
|
|
RESET_BIT (workset, v);
|
|
|
|
|
SET_BIT (nodes_ordered, v);
|
|
|
|
|
}
|
|
|
|
|
dir = BOTTOMUP;
|
|
|
|
|
sbitmap_zero (predecessors);
|
|
|
|
|
find_predecessors (predecessors, g, nodes_ordered);
|
|
|
|
|
sbitmap_a_and_b (workset, predecessors, scc);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
while (!sbitmap_equal (workset, zero_bitmap))
|
|
|
|
|
{
|
|
|
|
|
v = find_max_dv_min_mob (g, workset);
|
|
|
|
|
v_node = &g->nodes[v];
|
|
|
|
|
node_order[pos++] = v;
|
|
|
|
|
v_node_preds = NODE_PREDECESSORS (v_node);
|
|
|
|
|
sbitmap_a_and_b (tmp, v_node_preds, scc);
|
|
|
|
|
|
|
|
|
|
/* Don't consider the already ordered predecessors again. */
|
|
|
|
|
sbitmap_difference (tmp, tmp, nodes_ordered);
|
|
|
|
|
sbitmap_a_or_b (workset, workset, tmp);
|
|
|
|
|
RESET_BIT (workset, v);
|
|
|
|
|
SET_BIT (nodes_ordered, v);
|
|
|
|
|
}
|
|
|
|
|
dir = TOPDOWN;
|
|
|
|
|
sbitmap_zero (successors);
|
|
|
|
|
find_successors (successors, g, nodes_ordered);
|
|
|
|
|
sbitmap_a_and_b (workset, successors, scc);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
sbitmap_free (tmp);
|
|
|
|
|
sbitmap_free (workset);
|
|
|
|
|
sbitmap_free (zero_bitmap);
|
|
|
|
|
sbitmap_free (predecessors);
|
|
|
|
|
sbitmap_free (successors);
|
|
|
|
|
return pos;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* This page contains functions for manipulating partial-schedules during
|
|
|
|
|
modulo scheduling. */
|
|
|
|
|
|
|
|
|
|
/* Create a partial schedule and allocate a memory to hold II rows. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
partial_schedule_ptr
|
2004-05-25 14:58:32 +02:00
|
|
|
|
create_partial_schedule (int ii, ddg_ptr g, int history)
|
|
|
|
|
{
|
|
|
|
|
partial_schedule_ptr ps = (partial_schedule_ptr)
|
|
|
|
|
xmalloc (sizeof (struct partial_schedule));
|
|
|
|
|
ps->rows = (ps_insn_ptr *) xcalloc (ii, sizeof (ps_insn_ptr));
|
|
|
|
|
ps->ii = ii;
|
|
|
|
|
ps->history = history;
|
|
|
|
|
ps->min_cycle = INT_MAX;
|
|
|
|
|
ps->max_cycle = INT_MIN;
|
|
|
|
|
ps->g = g;
|
|
|
|
|
|
|
|
|
|
return ps;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Free the PS_INSNs in rows array of the given partial schedule.
|
|
|
|
|
??? Consider caching the PS_INSN's. */
|
|
|
|
|
static void
|
|
|
|
|
free_ps_insns (partial_schedule_ptr ps)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < ps->ii; i++)
|
|
|
|
|
{
|
|
|
|
|
while (ps->rows[i])
|
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr ps_insn = ps->rows[i]->next_in_row;
|
|
|
|
|
|
|
|
|
|
free (ps->rows[i]);
|
|
|
|
|
ps->rows[i] = ps_insn;
|
|
|
|
|
}
|
|
|
|
|
ps->rows[i] = NULL;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Free all the memory allocated to the partial schedule. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
void
|
2004-05-25 14:58:32 +02:00
|
|
|
|
free_partial_schedule (partial_schedule_ptr ps)
|
|
|
|
|
{
|
|
|
|
|
if (!ps)
|
|
|
|
|
return;
|
|
|
|
|
free_ps_insns (ps);
|
|
|
|
|
free (ps->rows);
|
|
|
|
|
free (ps);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Clear the rows array with its PS_INSNs, and create a new one with
|
|
|
|
|
NEW_II rows. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
void
|
2004-05-25 14:58:32 +02:00
|
|
|
|
reset_partial_schedule (partial_schedule_ptr ps, int new_ii)
|
|
|
|
|
{
|
|
|
|
|
if (!ps)
|
|
|
|
|
return;
|
|
|
|
|
free_ps_insns (ps);
|
|
|
|
|
if (new_ii == ps->ii)
|
|
|
|
|
return;
|
|
|
|
|
ps->rows = (ps_insn_ptr *) xrealloc (ps->rows, new_ii
|
|
|
|
|
* sizeof (ps_insn_ptr));
|
|
|
|
|
memset (ps->rows, 0, new_ii * sizeof (ps_insn_ptr));
|
|
|
|
|
ps->ii = new_ii;
|
|
|
|
|
ps->min_cycle = INT_MAX;
|
|
|
|
|
ps->max_cycle = INT_MIN;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Prints the partial schedule as an ii rows array, for each rows
|
|
|
|
|
print the ids of the insns in it. */
|
|
|
|
|
void
|
|
|
|
|
print_partial_schedule (partial_schedule_ptr ps, FILE *dump)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < ps->ii; i++)
|
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr ps_i = ps->rows[i];
|
|
|
|
|
|
|
|
|
|
fprintf (dump, "\n[CYCLE %d ]: ", i);
|
|
|
|
|
while (ps_i)
|
|
|
|
|
{
|
|
|
|
|
fprintf (dump, "%d, ",
|
|
|
|
|
INSN_UID (ps_i->node->insn));
|
|
|
|
|
ps_i = ps_i->next_in_row;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Creates an object of PS_INSN and initializes it to the given parameters. */
|
|
|
|
|
static ps_insn_ptr
|
|
|
|
|
create_ps_insn (ddg_node_ptr node, int rest_count, int cycle)
|
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr ps_i = xmalloc (sizeof (struct ps_insn));
|
|
|
|
|
|
|
|
|
|
ps_i->node = node;
|
|
|
|
|
ps_i->next_in_row = NULL;
|
|
|
|
|
ps_i->prev_in_row = NULL;
|
|
|
|
|
ps_i->row_rest_count = rest_count;
|
|
|
|
|
ps_i->cycle = cycle;
|
|
|
|
|
|
|
|
|
|
return ps_i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Removes the given PS_INSN from the partial schedule. Returns false if the
|
|
|
|
|
node is not found in the partial schedule, else returns true. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
static bool
|
2004-05-25 14:58:32 +02:00
|
|
|
|
remove_node_from_ps (partial_schedule_ptr ps, ps_insn_ptr ps_i)
|
|
|
|
|
{
|
|
|
|
|
int row;
|
|
|
|
|
|
|
|
|
|
if (!ps || !ps_i)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
row = SMODULO (ps_i->cycle, ps->ii);
|
|
|
|
|
if (! ps_i->prev_in_row)
|
|
|
|
|
{
|
|
|
|
|
if (ps_i != ps->rows[row])
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
ps->rows[row] = ps_i->next_in_row;
|
|
|
|
|
if (ps->rows[row])
|
|
|
|
|
ps->rows[row]->prev_in_row = NULL;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ps_i->prev_in_row->next_in_row = ps_i->next_in_row;
|
|
|
|
|
if (ps_i->next_in_row)
|
|
|
|
|
ps_i->next_in_row->prev_in_row = ps_i->prev_in_row;
|
|
|
|
|
}
|
|
|
|
|
free (ps_i);
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
2004-08-08 23:35:53 +02:00
|
|
|
|
/* Unlike what literature describes for modulo scheduling (which focuses
|
|
|
|
|
on VLIW machines) the order of the instructions inside a cycle is
|
|
|
|
|
important. Given the bitmaps MUST_FOLLOW and MUST_PRECEDE we know
|
|
|
|
|
where the current instruction should go relative to the already
|
|
|
|
|
scheduled instructions in the given cycle. Go over these
|
|
|
|
|
instructions and find the first possible column to put it in. */
|
|
|
|
|
static bool
|
|
|
|
|
ps_insn_find_column (partial_schedule_ptr ps, ps_insn_ptr ps_i,
|
|
|
|
|
sbitmap must_precede, sbitmap must_follow)
|
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr next_ps_i;
|
|
|
|
|
ps_insn_ptr first_must_follow = NULL;
|
|
|
|
|
ps_insn_ptr last_must_precede = NULL;
|
|
|
|
|
int row;
|
|
|
|
|
|
|
|
|
|
if (! ps_i)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
row = SMODULO (ps_i->cycle, ps->ii);
|
|
|
|
|
|
|
|
|
|
/* Find the first must follow and the last must precede
|
c-common.c, [...]: Fix comment typos.
* c-common.c, cfgexpand.c, cgraphunit.c, defaults.h,
et-forest.c, expr.c, gimplify.c, global.c, gthr-lynx.h,
hard-reg-set.h, modulo-sched.c, optabs.c, postreload-gcse.c,
tree-data-ref.c, tree-flow.h, tree-if-conv.c, tree-inline.c,
tree-sra.c, tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c,
tree-ssa-loop-niter.c, tree-ssa-operands.c,
tree-ssa-operands.h, tree-ssa-propagate.c,
tree-ssa-propagate.h, tree-ssa-threadupdate.c, value-prof.c,
vec.c, vec.h: Fix comment typos. Follow spelling conventions.
From-SVN: r87104
2004-09-05 17:24:15 +02:00
|
|
|
|
and insert the node immediately after the must precede
|
alias.c, [...]: Fix comment formatting.
* alias.c, basic-block.h, cgraphunit.c, combine.c, domwalk.h,
final.c, gengtype.c, genpreds.c, ggc-page.c, insn-notes.def,
lambda-code.c, loop-unroll.c, modulo-sched.c, pointer-set.c,
pretty-print.c, ra-colorize.c, sbitmap.c, tree-complex.c,
tree-data-ref.c, tree-dfa.c, tree-inline.c, tree-into-ssa.c,
tree-scalar-evolution.c, tree-ssa-dom.c,
tree-ssa-loop-manip.c, tree-ssa-loop-niter.c,
tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-threadupdate.c,
tree-vectorizer.c, vec.h: Fix comment formatting.
From-SVN: r89453
2004-10-22 19:05:11 +02:00
|
|
|
|
but make sure that it there is no must follow after it. */
|
2004-08-08 23:35:53 +02:00
|
|
|
|
for (next_ps_i = ps->rows[row];
|
|
|
|
|
next_ps_i;
|
|
|
|
|
next_ps_i = next_ps_i->next_in_row)
|
|
|
|
|
{
|
|
|
|
|
if (TEST_BIT (must_follow, next_ps_i->node->cuid)
|
|
|
|
|
&& ! first_must_follow)
|
|
|
|
|
first_must_follow = next_ps_i;
|
|
|
|
|
if (TEST_BIT (must_precede, next_ps_i->node->cuid))
|
|
|
|
|
{
|
|
|
|
|
/* If we have already met a node that must follow, then
|
|
|
|
|
there is no possible column. */
|
|
|
|
|
if (first_must_follow)
|
|
|
|
|
return false;
|
|
|
|
|
else
|
|
|
|
|
last_must_precede = next_ps_i;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now insert the node after INSERT_AFTER_PSI. */
|
|
|
|
|
|
|
|
|
|
if (! last_must_precede)
|
|
|
|
|
{
|
|
|
|
|
ps_i->next_in_row = ps->rows[row];
|
|
|
|
|
ps_i->prev_in_row = NULL;
|
|
|
|
|
if (ps_i->next_in_row)
|
|
|
|
|
ps_i->next_in_row->prev_in_row = ps_i;
|
|
|
|
|
ps->rows[row] = ps_i;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ps_i->next_in_row = last_must_precede->next_in_row;
|
|
|
|
|
last_must_precede->next_in_row = ps_i;
|
|
|
|
|
ps_i->prev_in_row = last_must_precede;
|
|
|
|
|
if (ps_i->next_in_row)
|
|
|
|
|
ps_i->next_in_row->prev_in_row = ps_i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
/* Advances the PS_INSN one column in its current row; returns false
|
2004-08-08 23:35:53 +02:00
|
|
|
|
in failure and true in success. Bit N is set in MUST_FOLLOW if
|
|
|
|
|
the node with cuid N must be come after the node pointed to by
|
|
|
|
|
PS_I when scheduled in the same cycle. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
static int
|
2004-08-08 23:35:53 +02:00
|
|
|
|
ps_insn_advance_column (partial_schedule_ptr ps, ps_insn_ptr ps_i,
|
|
|
|
|
sbitmap must_follow)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr prev, next;
|
|
|
|
|
int row;
|
2004-08-08 23:35:53 +02:00
|
|
|
|
ddg_node_ptr next_node;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
if (!ps || !ps_i)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
row = SMODULO (ps_i->cycle, ps->ii);
|
|
|
|
|
|
|
|
|
|
if (! ps_i->next_in_row)
|
|
|
|
|
return false;
|
|
|
|
|
|
2004-08-08 23:35:53 +02:00
|
|
|
|
next_node = ps_i->next_in_row->node;
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
/* Check if next_in_row is dependent on ps_i, both having same sched
|
|
|
|
|
times (typically ANTI_DEP). If so, ps_i cannot skip over it. */
|
2004-08-08 23:35:53 +02:00
|
|
|
|
if (TEST_BIT (must_follow, next_node->cuid))
|
|
|
|
|
return false;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
c-common.c, [...]: Fix comment typos.
* c-common.c, cfgexpand.c, cgraphunit.c, defaults.h,
et-forest.c, expr.c, gimplify.c, global.c, gthr-lynx.h,
hard-reg-set.h, modulo-sched.c, optabs.c, postreload-gcse.c,
tree-data-ref.c, tree-flow.h, tree-if-conv.c, tree-inline.c,
tree-sra.c, tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c,
tree-ssa-loop-niter.c, tree-ssa-operands.c,
tree-ssa-operands.h, tree-ssa-propagate.c,
tree-ssa-propagate.h, tree-ssa-threadupdate.c, value-prof.c,
vec.c, vec.h: Fix comment typos. Follow spelling conventions.
From-SVN: r87104
2004-09-05 17:24:15 +02:00
|
|
|
|
/* Advance PS_I over its next_in_row in the doubly linked list. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
prev = ps_i->prev_in_row;
|
|
|
|
|
next = ps_i->next_in_row;
|
|
|
|
|
|
|
|
|
|
if (ps_i == ps->rows[row])
|
|
|
|
|
ps->rows[row] = next;
|
|
|
|
|
|
|
|
|
|
ps_i->next_in_row = next->next_in_row;
|
|
|
|
|
|
|
|
|
|
if (next->next_in_row)
|
|
|
|
|
next->next_in_row->prev_in_row = ps_i;
|
|
|
|
|
|
|
|
|
|
next->next_in_row = ps_i;
|
|
|
|
|
ps_i->prev_in_row = next;
|
|
|
|
|
|
|
|
|
|
next->prev_in_row = prev;
|
|
|
|
|
if (prev)
|
|
|
|
|
prev->next_in_row = next;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Inserts a DDG_NODE to the given partial schedule at the given cycle.
|
2004-08-08 23:35:53 +02:00
|
|
|
|
Returns 0 if this is not possible and a PS_INSN otherwise. Bit N is
|
|
|
|
|
set in MUST_PRECEDE/MUST_FOLLOW if the node with cuid N must be come
|
|
|
|
|
before/after (respectively) the node pointed to by PS_I when scheduled
|
|
|
|
|
in the same cycle. */
|
2004-05-25 14:58:32 +02:00
|
|
|
|
static ps_insn_ptr
|
2004-08-08 23:35:53 +02:00
|
|
|
|
add_node_to_ps (partial_schedule_ptr ps, ddg_node_ptr node, int cycle,
|
|
|
|
|
sbitmap must_precede, sbitmap must_follow)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
2004-08-08 23:35:53 +02:00
|
|
|
|
ps_insn_ptr ps_i;
|
2004-05-25 14:58:32 +02:00
|
|
|
|
int rest_count = 1;
|
|
|
|
|
int row = SMODULO (cycle, ps->ii);
|
|
|
|
|
|
|
|
|
|
if (ps->rows[row]
|
|
|
|
|
&& ps->rows[row]->row_rest_count >= issue_rate)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
if (ps->rows[row])
|
|
|
|
|
rest_count += ps->rows[row]->row_rest_count;
|
|
|
|
|
|
|
|
|
|
ps_i = create_ps_insn (node, rest_count, cycle);
|
2004-08-08 23:35:53 +02:00
|
|
|
|
|
|
|
|
|
/* Finds and inserts PS_I according to MUST_FOLLOW and
|
|
|
|
|
MUST_PRECEDE. */
|
|
|
|
|
if (! ps_insn_find_column (ps, ps_i, must_precede, must_follow))
|
|
|
|
|
{
|
|
|
|
|
free (ps_i);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
|
|
|
|
return ps_i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Advance time one cycle. Assumes DFA is being used. */
|
|
|
|
|
static void
|
|
|
|
|
advance_one_cycle (void)
|
|
|
|
|
{
|
genattr.c (struct range, [...]): Remove them.
2004-07-19 Paolo Bonzini <bonzini@gnu.org>
* genattr.c (struct range, struct function_unit,
write_units, extend_range, init_range): Remove them.
(main): Remove code dealing with DEFINE_FUNCTION_UNIT.
Output "#define INSN_SCHEDULING" here.
* genattrtab.c (struct range, struct function_unit_op,
struct function_unit, struct dimension, enum operator,
operate_exp, expand_units, simplify_knowing,
encode_units_mask, simplify_by_exploding,
find_and_mark_used_attributes, unmark_used_attributes,
add_values_to_cover, increment_current_value,
test_for_current_value, simplify_with_current_value,
simplify_with_current_value_aux, gen_unit,
write_unit_name, write_function_unit_info,
write_complex_function, write_toplevel_expr,
find_single_value, extend_range): Remove.
(write_attr_get): Do not handle common_av->value
being an FFS.
(struct attr_desc): Remove func_units_p and blockage_p.
(write_attr_valueq): Do not handle them.
(find_attr): Do not clear them.
(make_internal_attr): Do not initialize them.
(main): Remove code dealing with DEFINE_FUNCTION_UNIT.
* sched-vis.c (init_target_units, insn_print_units,
init_block_visualization, print_block_visualization,
visualize_scheduled_insns, visualize_no_unit,
visualize_stall_cycles, visualize_alloc,
visualize_free, target_units, get_visual_tbl_length,
MAX_VISUAL_LINES, INSN_LEN, n_visual_lines,
visual_tbl_line_length, visual_tbl, n_vis_no_unit,
MAX_VISUAL_NO_UNIT, vis_no_unit): Remove.
* haifa-sched.c (blockage_range, clear_units,
schedule_unit, actual_hazard, potential_hazard,
insn_unit, unit_last_insn, unit_tick,
actual_hazard_this_instance, potential_hazard,
schedule_unit, max_insn_queue_index_value): Remove.
(MAX_INSN_QUEUE_INDEX): Removed, renamed throughout to
max_insn_queue_index.
* rtl.def (DEFINE_FUNCTION_UNIT): Remove.
* doc/md.texi (Processor pipeline description): Remove
references to old pipeline descriptions.
(Automaton pipeline description): Merge with the above.
(Old pipeline description, Comparison of the two descriptions):
Remove.
* bt-load.c (migrate_btr_def): Remove references to
use_pipeline_interface.
* haifa-sched.c (insn_cost, schedule_insn,
schedule_block, advance_one_cycle, sched_init,
queue_to_ready, sched_finish): Likewise.
* modulo-sched.c (sms_schedule, advance_one_cycle,
ps_has_conflicts): Likewise.
* sched-rgn.c (init_ready): Likewise.
(debug_dependencies): Likewise, and remove an "if (1)".
* target.h (use_dfa_pipeline_interface): Remove.
* config/alpha/alpha.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/arc/arc.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/arm/arm.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/c4x/c4x.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/frv/frv.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/i386/i386.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/ia64/ia64.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/iq2000/iq2000.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/m32r/m32r.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/mcore/mcore.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/mips/mips.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/pa/pa.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/rs6000/rs6000.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/s390/s390.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/sh/sh.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/sparc/sparc.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/v850/v850.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/xtensa/xtensa.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* doc/tm.texi (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
From-SVN: r84944
2004-07-20 09:27:18 +02:00
|
|
|
|
if (targetm.sched.dfa_pre_cycle_insn)
|
|
|
|
|
state_transition (curr_state,
|
2005-04-28 04:25:22 +02:00
|
|
|
|
targetm.sched.dfa_pre_cycle_insn ());
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
genattr.c (struct range, [...]): Remove them.
2004-07-19 Paolo Bonzini <bonzini@gnu.org>
* genattr.c (struct range, struct function_unit,
write_units, extend_range, init_range): Remove them.
(main): Remove code dealing with DEFINE_FUNCTION_UNIT.
Output "#define INSN_SCHEDULING" here.
* genattrtab.c (struct range, struct function_unit_op,
struct function_unit, struct dimension, enum operator,
operate_exp, expand_units, simplify_knowing,
encode_units_mask, simplify_by_exploding,
find_and_mark_used_attributes, unmark_used_attributes,
add_values_to_cover, increment_current_value,
test_for_current_value, simplify_with_current_value,
simplify_with_current_value_aux, gen_unit,
write_unit_name, write_function_unit_info,
write_complex_function, write_toplevel_expr,
find_single_value, extend_range): Remove.
(write_attr_get): Do not handle common_av->value
being an FFS.
(struct attr_desc): Remove func_units_p and blockage_p.
(write_attr_valueq): Do not handle them.
(find_attr): Do not clear them.
(make_internal_attr): Do not initialize them.
(main): Remove code dealing with DEFINE_FUNCTION_UNIT.
* sched-vis.c (init_target_units, insn_print_units,
init_block_visualization, print_block_visualization,
visualize_scheduled_insns, visualize_no_unit,
visualize_stall_cycles, visualize_alloc,
visualize_free, target_units, get_visual_tbl_length,
MAX_VISUAL_LINES, INSN_LEN, n_visual_lines,
visual_tbl_line_length, visual_tbl, n_vis_no_unit,
MAX_VISUAL_NO_UNIT, vis_no_unit): Remove.
* haifa-sched.c (blockage_range, clear_units,
schedule_unit, actual_hazard, potential_hazard,
insn_unit, unit_last_insn, unit_tick,
actual_hazard_this_instance, potential_hazard,
schedule_unit, max_insn_queue_index_value): Remove.
(MAX_INSN_QUEUE_INDEX): Removed, renamed throughout to
max_insn_queue_index.
* rtl.def (DEFINE_FUNCTION_UNIT): Remove.
* doc/md.texi (Processor pipeline description): Remove
references to old pipeline descriptions.
(Automaton pipeline description): Merge with the above.
(Old pipeline description, Comparison of the two descriptions):
Remove.
* bt-load.c (migrate_btr_def): Remove references to
use_pipeline_interface.
* haifa-sched.c (insn_cost, schedule_insn,
schedule_block, advance_one_cycle, sched_init,
queue_to_ready, sched_finish): Likewise.
* modulo-sched.c (sms_schedule, advance_one_cycle,
ps_has_conflicts): Likewise.
* sched-rgn.c (init_ready): Likewise.
(debug_dependencies): Likewise, and remove an "if (1)".
* target.h (use_dfa_pipeline_interface): Remove.
* config/alpha/alpha.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/arc/arc.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/arm/arm.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/c4x/c4x.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/frv/frv.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/i386/i386.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/ia64/ia64.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/iq2000/iq2000.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/m32r/m32r.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/mcore/mcore.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/mips/mips.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/pa/pa.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/rs6000/rs6000.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/s390/s390.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/sh/sh.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/sparc/sparc.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/v850/v850.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/xtensa/xtensa.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* doc/tm.texi (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
From-SVN: r84944
2004-07-20 09:27:18 +02:00
|
|
|
|
state_transition (curr_state, NULL);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
|
genattr.c (struct range, [...]): Remove them.
2004-07-19 Paolo Bonzini <bonzini@gnu.org>
* genattr.c (struct range, struct function_unit,
write_units, extend_range, init_range): Remove them.
(main): Remove code dealing with DEFINE_FUNCTION_UNIT.
Output "#define INSN_SCHEDULING" here.
* genattrtab.c (struct range, struct function_unit_op,
struct function_unit, struct dimension, enum operator,
operate_exp, expand_units, simplify_knowing,
encode_units_mask, simplify_by_exploding,
find_and_mark_used_attributes, unmark_used_attributes,
add_values_to_cover, increment_current_value,
test_for_current_value, simplify_with_current_value,
simplify_with_current_value_aux, gen_unit,
write_unit_name, write_function_unit_info,
write_complex_function, write_toplevel_expr,
find_single_value, extend_range): Remove.
(write_attr_get): Do not handle common_av->value
being an FFS.
(struct attr_desc): Remove func_units_p and blockage_p.
(write_attr_valueq): Do not handle them.
(find_attr): Do not clear them.
(make_internal_attr): Do not initialize them.
(main): Remove code dealing with DEFINE_FUNCTION_UNIT.
* sched-vis.c (init_target_units, insn_print_units,
init_block_visualization, print_block_visualization,
visualize_scheduled_insns, visualize_no_unit,
visualize_stall_cycles, visualize_alloc,
visualize_free, target_units, get_visual_tbl_length,
MAX_VISUAL_LINES, INSN_LEN, n_visual_lines,
visual_tbl_line_length, visual_tbl, n_vis_no_unit,
MAX_VISUAL_NO_UNIT, vis_no_unit): Remove.
* haifa-sched.c (blockage_range, clear_units,
schedule_unit, actual_hazard, potential_hazard,
insn_unit, unit_last_insn, unit_tick,
actual_hazard_this_instance, potential_hazard,
schedule_unit, max_insn_queue_index_value): Remove.
(MAX_INSN_QUEUE_INDEX): Removed, renamed throughout to
max_insn_queue_index.
* rtl.def (DEFINE_FUNCTION_UNIT): Remove.
* doc/md.texi (Processor pipeline description): Remove
references to old pipeline descriptions.
(Automaton pipeline description): Merge with the above.
(Old pipeline description, Comparison of the two descriptions):
Remove.
* bt-load.c (migrate_btr_def): Remove references to
use_pipeline_interface.
* haifa-sched.c (insn_cost, schedule_insn,
schedule_block, advance_one_cycle, sched_init,
queue_to_ready, sched_finish): Likewise.
* modulo-sched.c (sms_schedule, advance_one_cycle,
ps_has_conflicts): Likewise.
* sched-rgn.c (init_ready): Likewise.
(debug_dependencies): Likewise, and remove an "if (1)".
* target.h (use_dfa_pipeline_interface): Remove.
* config/alpha/alpha.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/arc/arc.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/arm/arm.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/c4x/c4x.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/frv/frv.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/i386/i386.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/ia64/ia64.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/iq2000/iq2000.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/m32r/m32r.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/mcore/mcore.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/mips/mips.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/pa/pa.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/rs6000/rs6000.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/s390/s390.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/sh/sh.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/sparc/sparc.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/v850/v850.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* config/xtensa/xtensa.c (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
* doc/tm.texi (TARGET_USE_DFA_PIPELINE_INTERFACE): Remove.
From-SVN: r84944
2004-07-20 09:27:18 +02:00
|
|
|
|
if (targetm.sched.dfa_post_cycle_insn)
|
|
|
|
|
state_transition (curr_state,
|
2005-04-28 04:25:22 +02:00
|
|
|
|
targetm.sched.dfa_post_cycle_insn ());
|
2004-05-25 14:58:32 +02:00
|
|
|
|
}
|
|
|
|
|
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* Given the kernel of a loop (from FIRST_INSN to LAST_INSN), finds
|
|
|
|
|
the number of cycles according to DFA that the kernel fits in,
|
|
|
|
|
we use this to check if we done well with SMS after we add
|
|
|
|
|
register moves. In some cases register moves overhead makes
|
|
|
|
|
it even worse than the original loop. We want SMS to be performed
|
|
|
|
|
when it gives less cycles after register moves are added. */
|
|
|
|
|
static int
|
|
|
|
|
kernel_number_of_cycles (rtx first_insn, rtx last_insn)
|
|
|
|
|
{
|
|
|
|
|
int cycles = 0;
|
|
|
|
|
rtx insn;
|
|
|
|
|
int can_issue_more = issue_rate;
|
|
|
|
|
|
|
|
|
|
state_reset (curr_state);
|
|
|
|
|
|
|
|
|
|
for (insn = first_insn;
|
|
|
|
|
insn != NULL_RTX && insn != last_insn;
|
|
|
|
|
insn = NEXT_INSN (insn))
|
|
|
|
|
{
|
|
|
|
|
if (! INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* Check if there is room for the current insn. */
|
|
|
|
|
if (!can_issue_more || state_dead_lock_p (curr_state))
|
|
|
|
|
{
|
|
|
|
|
cycles ++;
|
|
|
|
|
advance_one_cycle ();
|
|
|
|
|
can_issue_more = issue_rate;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Update the DFA state and return with failure if the DFA found
|
|
|
|
|
recource conflicts. */
|
|
|
|
|
if (state_transition (curr_state, insn) >= 0)
|
|
|
|
|
{
|
|
|
|
|
cycles ++;
|
|
|
|
|
advance_one_cycle ();
|
|
|
|
|
can_issue_more = issue_rate;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (targetm.sched.variable_issue)
|
|
|
|
|
can_issue_more =
|
2005-04-28 04:25:22 +02:00
|
|
|
|
targetm.sched.variable_issue (sched_dump, sched_verbose,
|
|
|
|
|
insn, can_issue_more);
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
/* A naked CLOBBER or USE generates no instruction, so don't
|
|
|
|
|
let them consume issue slots. */
|
|
|
|
|
else if (GET_CODE (PATTERN (insn)) != USE
|
|
|
|
|
&& GET_CODE (PATTERN (insn)) != CLOBBER)
|
|
|
|
|
can_issue_more--;
|
|
|
|
|
}
|
|
|
|
|
return cycles;
|
|
|
|
|
}
|
|
|
|
|
|
2004-05-25 14:58:32 +02:00
|
|
|
|
/* Checks if PS has resource conflicts according to DFA, starting from
|
|
|
|
|
FROM cycle to TO cycle; returns true if there are conflicts and false
|
|
|
|
|
if there are no conflicts. Assumes DFA is being used. */
|
|
|
|
|
static int
|
|
|
|
|
ps_has_conflicts (partial_schedule_ptr ps, int from, int to)
|
|
|
|
|
{
|
|
|
|
|
int cycle;
|
|
|
|
|
|
|
|
|
|
state_reset (curr_state);
|
|
|
|
|
|
|
|
|
|
for (cycle = from; cycle <= to; cycle++)
|
|
|
|
|
{
|
|
|
|
|
ps_insn_ptr crr_insn;
|
|
|
|
|
/* Holds the remaining issue slots in the current row. */
|
|
|
|
|
int can_issue_more = issue_rate;
|
|
|
|
|
|
|
|
|
|
/* Walk through the DFA for the current row. */
|
|
|
|
|
for (crr_insn = ps->rows[SMODULO (cycle, ps->ii)];
|
|
|
|
|
crr_insn;
|
|
|
|
|
crr_insn = crr_insn->next_in_row)
|
|
|
|
|
{
|
|
|
|
|
rtx insn = crr_insn->node->insn;
|
|
|
|
|
|
|
|
|
|
if (!INSN_P (insn))
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* Check if there is room for the current insn. */
|
|
|
|
|
if (!can_issue_more || state_dead_lock_p (curr_state))
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* Update the DFA state and return with failure if the DFA found
|
|
|
|
|
recource conflicts. */
|
|
|
|
|
if (state_transition (curr_state, insn) >= 0)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
if (targetm.sched.variable_issue)
|
|
|
|
|
can_issue_more =
|
2005-04-28 04:25:22 +02:00
|
|
|
|
targetm.sched.variable_issue (sched_dump, sched_verbose,
|
|
|
|
|
insn, can_issue_more);
|
2004-05-25 14:58:32 +02:00
|
|
|
|
/* A naked CLOBBER or USE generates no instruction, so don't
|
|
|
|
|
let them consume issue slots. */
|
|
|
|
|
else if (GET_CODE (PATTERN (insn)) != USE
|
|
|
|
|
&& GET_CODE (PATTERN (insn)) != CLOBBER)
|
|
|
|
|
can_issue_more--;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Advance the DFA to the next cycle. */
|
|
|
|
|
advance_one_cycle ();
|
|
|
|
|
}
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Checks if the given node causes resource conflicts when added to PS at
|
|
|
|
|
cycle C. If not the node is added to PS and returned; otherwise zero
|
2004-08-08 23:35:53 +02:00
|
|
|
|
is returned. Bit N is set in MUST_PRECEDE/MUST_FOLLOW if the node with
|
|
|
|
|
cuid N must be come before/after (respectively) the node pointed to by
|
|
|
|
|
PS_I when scheduled in the same cycle. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
ps_insn_ptr
|
2004-08-08 23:35:53 +02:00
|
|
|
|
ps_add_node_check_conflicts (partial_schedule_ptr ps, ddg_node_ptr n,
|
|
|
|
|
int c, sbitmap must_precede,
|
|
|
|
|
sbitmap must_follow)
|
2004-05-25 14:58:32 +02:00
|
|
|
|
{
|
|
|
|
|
int has_conflicts = 0;
|
|
|
|
|
ps_insn_ptr ps_i;
|
|
|
|
|
|
2004-08-08 23:35:53 +02:00
|
|
|
|
/* First add the node to the PS, if this succeeds check for
|
|
|
|
|
conflicts, trying different issue slots in the same row. */
|
|
|
|
|
if (! (ps_i = add_node_to_ps (ps, n, c, must_precede, must_follow)))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
return NULL; /* Failed to insert the node at the given cycle. */
|
|
|
|
|
|
|
|
|
|
has_conflicts = ps_has_conflicts (ps, c, c)
|
|
|
|
|
|| (ps->history > 0
|
|
|
|
|
&& ps_has_conflicts (ps,
|
|
|
|
|
c - ps->history,
|
|
|
|
|
c + ps->history));
|
|
|
|
|
|
|
|
|
|
/* Try different issue slots to find one that the given node can be
|
|
|
|
|
scheduled in without conflicts. */
|
|
|
|
|
while (has_conflicts)
|
|
|
|
|
{
|
2004-08-08 23:35:53 +02:00
|
|
|
|
if (! ps_insn_advance_column (ps, ps_i, must_follow))
|
2004-05-25 14:58:32 +02:00
|
|
|
|
break;
|
|
|
|
|
has_conflicts = ps_has_conflicts (ps, c, c)
|
|
|
|
|
|| (ps->history > 0
|
|
|
|
|
&& ps_has_conflicts (ps,
|
|
|
|
|
c - ps->history,
|
|
|
|
|
c + ps->history));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (has_conflicts)
|
|
|
|
|
{
|
|
|
|
|
remove_node_from_ps (ps, ps_i);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ps->min_cycle = MIN (ps->min_cycle, c);
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ps->max_cycle = MAX (ps->max_cycle, c);
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return ps_i;
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}
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/* Rotate the rows of PS such that insns scheduled at time
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START_CYCLE will appear in row 0. Updates max/min_cycles. */
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
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void
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2004-05-25 14:58:32 +02:00
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rotate_partial_schedule (partial_schedule_ptr ps, int start_cycle)
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{
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int i, row, backward_rotates;
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int last_row = ps->ii - 1;
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if (start_cycle == 0)
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return;
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backward_rotates = SMODULO (start_cycle, ps->ii);
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/* Revisit later and optimize this into a single loop. */
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for (i = 0; i < backward_rotates; i++)
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{
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ps_insn_ptr first_row = ps->rows[0];
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for (row = 0; row < last_row; row++)
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ps->rows[row] = ps->rows[row+1];
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ps->rows[last_row] = first_row;
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}
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ps->max_cycle -= start_cycle;
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ps->min_cycle -= start_cycle;
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}
|
2004-06-08 23:46:32 +02:00
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|
2005-04-03 16:09:57 +02:00
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/* Remove the node N from the partial schedule PS; because we restart the DFA
|
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|
each time we want to check for resource conflicts; this is equivalent to
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
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|
unscheduling the node N. */
|
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|
static bool
|
|
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ps_unschedule_node (partial_schedule_ptr ps, ddg_node_ptr n)
|
|
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|
{
|
|
|
|
|
ps_insn_ptr ps_i;
|
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|
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int row = SMODULO (SCHED_TIME (n), ps->ii);
|
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if (row < 0 || row > ps->ii)
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return false;
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for (ps_i = ps->rows[row];
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|
|
ps_i && ps_i->node != n;
|
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ps_i = ps_i->next_in_row);
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|
if (!ps_i)
|
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return false;
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|
|
return remove_node_from_ps (ps, ps_i);
|
|
|
|
|
}
|
2004-06-08 23:46:32 +02:00
|
|
|
|
#endif /* INSN_SCHEDULING*/
|
cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
2005-03-31 Mostafa Hagog <mustafa@il.ibm.com>
* cfg.c (clear_bb_flags): Don't clear BB_DISABLE_SCHEDULE.
* modulo-sched.c (undo_replace_buff_elem): New structure.
(kernel_number_of_cycles, ps_unschedule_node,
undo_generate_reg_moves,free_undo_replace_buff,
undo_permute_partial_schedule, loop_single_full_bb_p,
SIMPLE_SMS_LOOP_P, loop_canon_p, canon_loop,
build_loops_structure, get_sched_window): New.
(generate_reg_moves): Return undo_replace_buff_elem and other
fixes.
(generate_prolog_epilog): Remove old loop versioning.
(sms_schedule): Use loop information and loop_version.
(sms_schedule_by_order): Split part of it to get_sched_window.
* passes.c (rest_of_handle_sms): call cfg_layout_initialize
cfg_layout_finalize and free_dominance_info before/after SMS.
From-SVN: r97484
2005-04-03 11:27:07 +02:00
|
|
|
|
|