cfg.h: New.

2014-10-21  Andrew MacLeod  <amacleod@redhat.com>


	* cfg.h: New.  Header file for cfg.c.
	* cfganal.h: New.  Header file for cfganal.c.
	* lcm.h: New.  Header file for lcm.c.
	* loop-unroll.h: New.  Header file for loop-unroll.h.
	* cfgloop.h: (unroll_loops): Remove prototype.
	* basic-block.h: Move prototypes and structs to new header files.
	Include cfg.h, cfganal.h, and lcm.h.
	* loop-init.c: Include loop-unroll.h.
	* loop-unroll.c: (referenced_in_one_insn_in_loop_p): Make static.
	* modulo-sched.c: Include loop-unroll.h.

From-SVN: r216518
This commit is contained in:
Andrew MacLeod 2014-10-21 15:17:12 +00:00 committed by Andrew Macleod
parent eb8a3cca94
commit dd637013f6
10 changed files with 225 additions and 119 deletions

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@ -1,3 +1,16 @@
2014-10-21 Andrew MacLeod <amacleod@redhat.com>
* cfg.h: New. Header file for cfg.c.
* cfganal.h: New. Header file for cfganal.c.
* lcm.h: New. Header file for lcm.c.
* loop-unroll.h: New. Header file for loop-unroll.h.
* cfgloop.h: (unroll_loops): Remove prototype.
* basic-block.h: Move prototypes and structs to new header files.
Include cfg.h, cfganal.h, and lcm.h.
* loop-init.c: Include loop-unroll.h.
* loop-unroll.c: (referenced_in_one_insn_in_loop_p): Make static.
* modulo-sched.c: Include loop-unroll.h.
2014-10-21 Thomas Preud'homme <thomas.preudhomme@arm.com>
* tree-ssa-math-opts.c (find_bswap_or_nop_1): Fix creation of

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@ -30,6 +30,9 @@ along with GCC; see the file COPYING3. If not see
#include "input.h"
#include "function.h"
#include "cfgrtl.h"
#include "cfg.h"
#include "cfganal.h"
#include "lcm.h"
/* Use gcov_type to hold basic block counters. Should be at least
64bit. Although a counter cannot be negative, we use a signed
@ -381,26 +384,7 @@ struct GTY(()) control_flow_graph {
#define NUM_FIXED_BLOCKS (2)
basic_block split_edge_and_insert (edge, rtx_insn *);
extern edge unchecked_make_edge (basic_block, basic_block, int);
extern edge cached_make_edge (sbitmap, basic_block, basic_block, int);
extern edge make_edge (basic_block, basic_block, int);
extern edge make_single_succ_edge (basic_block, basic_block, int);
extern void remove_edge_raw (edge);
extern void redirect_edge_succ (edge, basic_block);
extern edge redirect_edge_succ_nodup (edge, basic_block);
extern void redirect_edge_pred (edge, basic_block);
extern void clear_bb_flags (void);
extern void dump_bb_info (FILE *, basic_block, int, int, bool, bool);
extern void dump_edge_info (FILE *, edge, int, int);
extern void debug (edge_def &ref);
extern void debug (edge_def *ptr);
extern void brief_dump_cfg (FILE *, int);
extern void clear_edges (void);
extern void scale_bbs_frequencies_int (basic_block *, int, int, int);
extern void scale_bbs_frequencies_gcov_type (basic_block *, int, gcov_type,
gcov_type);
/* Structure to group all of the information to process IF-THEN and
IF-THEN-ELSE blocks for the conditional execution support. This
@ -424,31 +408,6 @@ struct ce_if_block
int pass; /* Pass number. */
};
/* This structure maintains an edge list vector. */
/* FIXME: Make this a vec<edge>. */
struct edge_list
{
int num_edges;
edge *index_to_edge;
};
/* Class to compute and manage control dependences on an edge-list. */
class control_dependences
{
public:
control_dependences (edge_list *);
~control_dependences ();
bitmap get_edges_dependent_on (int);
edge get_edge (int);
private:
void set_control_dependence_map_bit (basic_block, int);
void clear_control_dependence_bitmap (basic_block);
void find_control_dependence (int);
vec<bitmap> control_dependence_map;
edge_list *m_el;
};
/* The base value for branch probability notes and edge probabilities. */
#define REG_BR_PROB_BASE 10000
@ -690,24 +649,7 @@ ei_cond (edge_iterator ei, edge *p)
#define CLEANUP_CFGLAYOUT 32 /* Do cleanup in cfglayout mode. */
#define CLEANUP_CFG_CHANGED 64 /* The caller changed the CFG. */
/* In cfganal.c */
extern void bitmap_intersection_of_succs (sbitmap, sbitmap *, basic_block);
extern void bitmap_intersection_of_preds (sbitmap, sbitmap *, basic_block);
extern void bitmap_union_of_succs (sbitmap, sbitmap *, basic_block);
extern void bitmap_union_of_preds (sbitmap, sbitmap *, basic_block);
/* In lcm.c */
extern struct edge_list *pre_edge_lcm (int, sbitmap *, sbitmap *,
sbitmap *, sbitmap *, sbitmap **,
sbitmap **);
extern struct edge_list *pre_edge_lcm_avs (int, sbitmap *, sbitmap *,
sbitmap *, sbitmap *, sbitmap *,
sbitmap *, sbitmap **, sbitmap **);
extern struct edge_list *pre_edge_rev_lcm (int, sbitmap *,
sbitmap *, sbitmap *,
sbitmap *, sbitmap **,
sbitmap **);
extern void compute_available (sbitmap *, sbitmap *, sbitmap *, sbitmap *);
extern void dump_flow_info (FILE *, int);
/* In predict.c */
extern bool maybe_hot_bb_p (struct function *, const_basic_block);
@ -733,50 +675,6 @@ extern bool edge_probability_reliable_p (const_edge);
extern bool br_prob_note_reliable_p (const_rtx);
extern bool predictable_edge_p (edge);
/* In cfg.c */
extern void init_flow (struct function *);
extern void debug_bb (basic_block);
extern basic_block debug_bb_n (int);
extern void dump_flow_info (FILE *, int);
extern void expunge_block (basic_block);
extern void link_block (basic_block, basic_block);
extern void unlink_block (basic_block);
extern void compact_blocks (void);
extern basic_block alloc_block (void);
extern void alloc_aux_for_blocks (int);
extern void clear_aux_for_blocks (void);
extern void free_aux_for_blocks (void);
extern void alloc_aux_for_edge (edge, int);
extern void alloc_aux_for_edges (int);
extern void clear_aux_for_edges (void);
extern void free_aux_for_edges (void);
/* In cfganal.c */
extern void find_unreachable_blocks (void);
extern bool mark_dfs_back_edges (void);
struct edge_list * create_edge_list (void);
void free_edge_list (struct edge_list *);
void print_edge_list (FILE *, struct edge_list *);
void verify_edge_list (FILE *, struct edge_list *);
int find_edge_index (struct edge_list *, basic_block, basic_block);
edge find_edge (basic_block, basic_block);
extern void remove_fake_edges (void);
extern void remove_fake_exit_edges (void);
extern void add_noreturn_fake_exit_edges (void);
extern void connect_infinite_loops_to_exit (void);
extern int post_order_compute (int *, bool, bool);
extern basic_block dfs_find_deadend (basic_block);
extern int inverted_post_order_compute (int *);
extern int pre_and_rev_post_order_compute_fn (struct function *,
int *, int *, bool);
extern int pre_and_rev_post_order_compute (int *, int *, bool);
extern int dfs_enumerate_from (basic_block, int,
bool (*)(const_basic_block, const void *),
basic_block *, int, const void *);
extern void compute_dominance_frontiers (struct bitmap_head *);
extern bitmap compute_idf (bitmap, struct bitmap_head *);
extern basic_block * single_pred_before_succ_order (void);
/* In cfgbuild.c. */
extern void find_many_sub_basic_blocks (sbitmap);
extern void rtl_make_eh_edge (sbitmap, basic_block, rtx);
@ -841,17 +739,6 @@ extern basic_block next_dom_son (enum cdi_direction, basic_block);
unsigned bb_dom_dfs_in (enum cdi_direction, basic_block);
unsigned bb_dom_dfs_out (enum cdi_direction, basic_block);
extern void update_bb_profile_for_threading (basic_block, int, gcov_type, edge);
extern void initialize_original_copy_tables (void);
extern void free_original_copy_tables (void);
extern void set_bb_original (basic_block, basic_block);
extern basic_block get_bb_original (basic_block);
extern void set_bb_copy (basic_block, basic_block);
extern basic_block get_bb_copy (basic_block);
void set_loop_copy (struct loop *, struct loop *);
struct loop *get_loop_copy (struct loop *);
#include "cfghooks.h"
/* Return true if BB is in a transaction. */

65
gcc/cfg.h Normal file
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@ -0,0 +1,65 @@
/* Control flow graph manipulation code header file.
Copyright (C) 2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_CFG_H
#define GCC_CFG_H
extern void init_flow (struct function *);
extern void clear_edges (void);
extern basic_block alloc_block (void);
extern void link_block (basic_block, basic_block);
extern void unlink_block (basic_block);
extern void compact_blocks (void);
extern void expunge_block (basic_block);
extern edge unchecked_make_edge (basic_block, basic_block, int);
extern edge cached_make_edge (sbitmap, basic_block, basic_block, int);
extern edge make_edge (basic_block, basic_block, int);
extern edge make_single_succ_edge (basic_block, basic_block, int);
extern void remove_edge_raw (edge);
extern void redirect_edge_succ (edge, basic_block);
extern void redirect_edge_pred (edge, basic_block);
extern void clear_bb_flags (void);
extern void dump_edge_info (FILE *, edge, int, int);
extern void debug (edge_def &ref);
extern void debug (edge_def *ptr);
extern void alloc_aux_for_blocks (int);
extern void clear_aux_for_blocks (void);
extern void free_aux_for_blocks (void);
extern void alloc_aux_for_edge (edge, int);
extern void alloc_aux_for_edges (int);
extern void clear_aux_for_edges (void);
extern void free_aux_for_edges (void);
extern void debug_bb (basic_block);
extern basic_block debug_bb_n (int);
extern void dump_bb_info (FILE *, basic_block, int, int, bool, bool);
extern void brief_dump_cfg (FILE *, int);
extern void update_bb_profile_for_threading (basic_block, int, gcov_type, edge);
extern void scale_bbs_frequencies_int (basic_block *, int, int, int);
extern void scale_bbs_frequencies_gcov_type (basic_block *, int, gcov_type,
gcov_type);
extern void initialize_original_copy_tables (void);
extern void free_original_copy_tables (void);
extern void set_bb_original (basic_block, basic_block);
extern basic_block get_bb_original (basic_block);
extern void set_bb_copy (basic_block, basic_block);
extern basic_block get_bb_copy (basic_block);
void set_loop_copy (struct loop *, struct loop *);
struct loop *get_loop_copy (struct loop *);
#endif /* GCC_CFG_H */

79
gcc/cfganal.h Normal file
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@ -0,0 +1,79 @@
/* Control flow graph analysis header file.
Copyright (C) 2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_CFGANAL_H
#define GCC_CFGANAL_H
/* This structure maintains an edge list vector. */
/* FIXME: Make this a vec<edge>. */
struct edge_list
{
int num_edges;
edge *index_to_edge;
};
/* Class to compute and manage control dependences on an edge-list. */
class control_dependences
{
public:
control_dependences (edge_list *);
~control_dependences ();
bitmap get_edges_dependent_on (int);
edge get_edge (int);
private:
void set_control_dependence_map_bit (basic_block, int);
void clear_control_dependence_bitmap (basic_block);
void find_control_dependence (int);
vec<bitmap> control_dependence_map;
edge_list *m_el;
};
extern bool mark_dfs_back_edges (void);
extern void find_unreachable_blocks (void);
struct edge_list * create_edge_list (void);
void free_edge_list (struct edge_list *);
void print_edge_list (FILE *, struct edge_list *);
void verify_edge_list (FILE *, struct edge_list *);
edge find_edge (basic_block, basic_block);
int find_edge_index (struct edge_list *, basic_block, basic_block);
extern void remove_fake_edges (void);
extern void remove_fake_exit_edges (void);
extern void add_noreturn_fake_exit_edges (void);
extern void connect_infinite_loops_to_exit (void);
extern int post_order_compute (int *, bool, bool);
extern basic_block dfs_find_deadend (basic_block);
extern int inverted_post_order_compute (int *);
extern int pre_and_rev_post_order_compute_fn (struct function *,
int *, int *, bool);
extern int pre_and_rev_post_order_compute (int *, int *, bool);
extern int dfs_enumerate_from (basic_block, int,
bool (*)(const_basic_block, const void *),
basic_block *, int, const void *);
extern void compute_dominance_frontiers (struct bitmap_head *);
extern bitmap compute_idf (bitmap, struct bitmap_head *);
extern void bitmap_intersection_of_succs (sbitmap, sbitmap *, basic_block);
extern void bitmap_intersection_of_preds (sbitmap, sbitmap *, basic_block);
extern void bitmap_union_of_succs (sbitmap, sbitmap *, basic_block);
extern void bitmap_union_of_preds (sbitmap, sbitmap *, basic_block);
extern basic_block * single_pred_before_succ_order (void);
#endif /* GCC_CFGANAL_H */

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@ -740,7 +740,6 @@ enum
UAP_UNROLL_ALL = 2 /* Enables unrolling of all loops. */
};
extern void unroll_loops (int);
extern void doloop_optimize_loops (void);
extern void move_loop_invariants (void);
extern void scale_loop_profile (struct loop *loop, int scale, gcov_type iteration_bound);

34
gcc/lcm.h Normal file
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@ -0,0 +1,34 @@
/* Generic partial redundancy elimination with lazy code motion header file.
Copyright (C) 2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_LCM_H
#define GCC_LCM_H
extern struct edge_list *pre_edge_lcm_avs (int, sbitmap *, sbitmap *,
sbitmap *, sbitmap *, sbitmap *,
sbitmap *, sbitmap **, sbitmap **);
extern struct edge_list *pre_edge_lcm (int, sbitmap *, sbitmap *,
sbitmap *, sbitmap *, sbitmap **,
sbitmap **);
extern void compute_available (sbitmap *, sbitmap *, sbitmap *, sbitmap *);
extern struct edge_list *pre_edge_rev_lcm (int, sbitmap *,
sbitmap *, sbitmap *,
sbitmap *, sbitmap **,
sbitmap **);
#endif /* GCC_LCM_H */

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@ -32,6 +32,7 @@ along with GCC; see the file COPYING3. If not see
#include "df.h"
#include "ggc.h"
#include "tree-ssa-loop-niter.h"
#include "loop-unroll.h"
/* Apply FLAGS to the loop state. */

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@ -1236,7 +1236,7 @@ unroll_loop_stupid (struct loop *loop)
Set *DEBUG_USES to the number of debug insns that reference the
variable. */
bool
static bool
referenced_in_one_insn_in_loop_p (struct loop *loop, rtx reg,
int *debug_uses)
{

27
gcc/loop-unroll.h Normal file
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@ -0,0 +1,27 @@
/* Loop unrolling header file.
Copyright (C) 2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_LOOP_UNROLL_H
#define GCC_LOOP_UNROLL_H
extern void unroll_loops (int);
extern basic_block split_edge_and_insert (edge, rtx_insn *);
#endif /* GCC_LOOP_UNROLL_H */

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@ -50,6 +50,7 @@ along with GCC; see the file COPYING3. If not see
#include "tree-pass.h"
#include "dbgcnt.h"
#include "df.h"
#include "loop-unroll.h"
#ifdef INSN_SCHEDULING