5098 lines
145 KiB
C
5098 lines
145 KiB
C
/* Subroutines used for code generation on the Tilera TILEPro.
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Copyright (C) 2011-2014 Free Software Foundation, Inc.
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Contributed by Walter Lee (walt@tilera.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
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License 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 COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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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 "rtl.h"
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#include "regs.h"
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#include "insn-config.h"
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#include "output.h"
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#include "insn-attr.h"
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#include "recog.h"
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#include "expr.h"
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#include "langhooks.h"
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#include "optabs.h"
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#include "sched-int.h"
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#include "sel-sched.h"
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#include "tm_p.h"
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#include "tm-constrs.h"
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#include "target.h"
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#include "target-def.h"
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#include "function.h"
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#include "dwarf2.h"
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#include "timevar.h"
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#include "tree.h"
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#include "hash-table.h"
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#include "vec.h"
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#include "ggc.h"
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#include "basic-block.h"
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#include "tree-ssa-alias.h"
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#include "internal-fn.h"
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#include "gimple-fold.h"
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#include "tree-eh.h"
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#include "gimple-expr.h"
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#include "is-a.h"
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#include "gimple.h"
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#include "stringpool.h"
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#include "stor-layout.h"
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#include "varasm.h"
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#include "calls.h"
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#include "gimplify.h"
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#include "cfgloop.h"
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#include "tilepro-builtins.h"
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#include "tilepro-multiply.h"
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#include "diagnostic.h"
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#include "builtins.h"
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/* SYMBOL_REF for GOT */
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static GTY(()) rtx g_got_symbol = NULL;
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/* In case of a POST_INC or POST_DEC memory reference, we must report
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the mode of the memory reference from TARGET_PRINT_OPERAND to
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TARGET_PRINT_OPERAND_ADDRESS. */
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static enum machine_mode output_memory_reference_mode;
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/* Report whether we're printing out the first address fragment of a
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POST_INC or POST_DEC memory reference, from TARGET_PRINT_OPERAND to
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TARGET_PRINT_OPERAND_ADDRESS. */
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static bool output_memory_autoinc_first;
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/* Option handling */
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/* Implement TARGET_OPTION_OVERRIDE. */
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static void
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tilepro_option_override (void)
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{
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/* When modulo scheduling is enabled, we still rely on regular
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scheduler for bundling. */
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if (flag_modulo_sched)
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flag_resched_modulo_sched = 1;
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}
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/* Implement TARGET_SCALAR_MODE_SUPPORTED_P. */
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static bool
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tilepro_scalar_mode_supported_p (enum machine_mode mode)
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{
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switch (mode)
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{
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case QImode:
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case HImode:
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case SImode:
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case DImode:
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return true;
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case SFmode:
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case DFmode:
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return true;
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default:
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return false;
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}
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}
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/* Implement TARGET_VECTOR_MODE_SUPPORTED_P. */
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static bool
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tile_vector_mode_supported_p (enum machine_mode mode)
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{
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return mode == V4QImode || mode == V2HImode;
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}
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/* Implement TARGET_CANNOT_FORCE_CONST_MEM. */
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static bool
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tilepro_cannot_force_const_mem (enum machine_mode mode ATTRIBUTE_UNUSED,
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rtx x ATTRIBUTE_UNUSED)
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{
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return true;
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}
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/* Implement TARGET_FUNCTION_OK_FOR_SIBCALL. */
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static bool
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tilepro_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED)
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{
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return decl != NULL;
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}
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/* Implement TARGET_PASS_BY_REFERENCE. Variable sized types are
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passed by reference. */
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static bool
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tilepro_pass_by_reference (cumulative_args_t cum ATTRIBUTE_UNUSED,
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enum machine_mode mode ATTRIBUTE_UNUSED,
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const_tree type, bool named ATTRIBUTE_UNUSED)
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{
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return (type && TYPE_SIZE (type)
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&& TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST);
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}
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/* Implement TARGET_RETURN_IN_MEMORY. */
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static bool
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tilepro_return_in_memory (const_tree type, const_tree fndecl ATTRIBUTE_UNUSED)
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{
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return !IN_RANGE (int_size_in_bytes (type),
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0, TILEPRO_NUM_RETURN_REGS * UNITS_PER_WORD);
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}
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/* Implement TARGET_FUNCTION_ARG_BOUNDARY. */
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static unsigned int
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tilepro_function_arg_boundary (enum machine_mode mode, const_tree type)
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{
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unsigned int alignment;
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alignment = type ? TYPE_ALIGN (type) : GET_MODE_ALIGNMENT (mode);
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if (alignment < PARM_BOUNDARY)
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alignment = PARM_BOUNDARY;
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if (alignment > STACK_BOUNDARY)
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alignment = STACK_BOUNDARY;
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return alignment;
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}
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/* Implement TARGET_FUNCTION_ARG. */
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static rtx
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tilepro_function_arg (cumulative_args_t cum_v,
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enum machine_mode mode,
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const_tree type, bool named ATTRIBUTE_UNUSED)
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{
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CUMULATIVE_ARGS cum = *get_cumulative_args (cum_v);
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int byte_size = ((mode == BLKmode)
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? int_size_in_bytes (type) : GET_MODE_SIZE (mode));
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bool doubleword_aligned_p;
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if (cum >= TILEPRO_NUM_ARG_REGS)
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return NULL_RTX;
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/* See whether the argument has doubleword alignment. */
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doubleword_aligned_p =
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tilepro_function_arg_boundary (mode, type) > BITS_PER_WORD;
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if (doubleword_aligned_p)
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cum += cum & 1;
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/* The ABI does not allow parameters to be passed partially in reg
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and partially in stack. */
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if ((cum + (byte_size + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
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> TILEPRO_NUM_ARG_REGS)
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return NULL_RTX;
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return gen_rtx_REG (mode, cum);
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}
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/* Implement TARGET_FUNCTION_ARG_ADVANCE. */
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static void
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tilepro_function_arg_advance (cumulative_args_t cum_v,
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enum machine_mode mode,
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const_tree type, bool named ATTRIBUTE_UNUSED)
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{
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CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
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int byte_size = ((mode == BLKmode)
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? int_size_in_bytes (type) : GET_MODE_SIZE (mode));
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int word_size = (byte_size + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
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bool doubleword_aligned_p;
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/* See whether the argument has doubleword alignment. */
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doubleword_aligned_p =
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tilepro_function_arg_boundary (mode, type) > BITS_PER_WORD;
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if (doubleword_aligned_p)
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*cum += *cum & 1;
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/* If the current argument does not fit in the pretend_args space,
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skip over it. */
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if (*cum < TILEPRO_NUM_ARG_REGS
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&& *cum + word_size > TILEPRO_NUM_ARG_REGS)
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*cum = TILEPRO_NUM_ARG_REGS;
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*cum += word_size;
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}
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/* Implement TARGET_FUNCTION_VALUE. */
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static rtx
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tilepro_function_value (const_tree valtype, const_tree fn_decl_or_type,
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bool outgoing ATTRIBUTE_UNUSED)
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{
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enum machine_mode mode;
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int unsigned_p;
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mode = TYPE_MODE (valtype);
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unsigned_p = TYPE_UNSIGNED (valtype);
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mode = promote_function_mode (valtype, mode, &unsigned_p,
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fn_decl_or_type, 1);
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return gen_rtx_REG (mode, 0);
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}
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/* Implement TARGET_LIBCALL_VALUE. */
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static rtx
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tilepro_libcall_value (enum machine_mode mode,
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const_rtx fun ATTRIBUTE_UNUSED)
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{
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return gen_rtx_REG (mode, 0);
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}
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/* Implement FUNCTION_VALUE_REGNO_P. */
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static bool
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tilepro_function_value_regno_p (const unsigned int regno)
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{
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return regno < TILEPRO_NUM_RETURN_REGS;
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}
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/* Implement TARGET_BUILD_BUILTIN_VA_LIST. */
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static tree
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tilepro_build_builtin_va_list (void)
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{
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tree f_args, f_skip, record, type_decl;
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bool owp;
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record = lang_hooks.types.make_type (RECORD_TYPE);
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type_decl = build_decl (BUILTINS_LOCATION, TYPE_DECL,
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get_identifier ("__va_list_tag"), record);
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f_args = build_decl (BUILTINS_LOCATION, FIELD_DECL,
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get_identifier ("__args"), ptr_type_node);
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f_skip = build_decl (BUILTINS_LOCATION, FIELD_DECL,
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get_identifier ("__skip"), ptr_type_node);
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DECL_FIELD_CONTEXT (f_args) = record;
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DECL_FIELD_CONTEXT (f_skip) = record;
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TREE_CHAIN (record) = type_decl;
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TYPE_NAME (record) = type_decl;
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TYPE_FIELDS (record) = f_args;
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TREE_CHAIN (f_args) = f_skip;
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/* We know this is being padded and we want it too. It is an
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internal type so hide the warnings from the user. */
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owp = warn_padded;
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warn_padded = false;
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layout_type (record);
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warn_padded = owp;
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/* The correct type is an array type of one element. */
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return record;
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}
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/* Implement TARGET_EXPAND_BUILTIN_VA_START. */
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static void
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tilepro_va_start (tree valist, rtx nextarg ATTRIBUTE_UNUSED)
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{
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tree f_args, f_skip;
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tree args, skip, t;
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f_args = TYPE_FIELDS (TREE_TYPE (valist));
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f_skip = TREE_CHAIN (f_args);
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args =
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build3 (COMPONENT_REF, TREE_TYPE (f_args), valist, f_args, NULL_TREE);
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skip =
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build3 (COMPONENT_REF, TREE_TYPE (f_skip), valist, f_skip, NULL_TREE);
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/* Find the __args area. */
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t = make_tree (TREE_TYPE (args), virtual_incoming_args_rtx);
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t = fold_build_pointer_plus_hwi (t,
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UNITS_PER_WORD *
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(crtl->args.info - TILEPRO_NUM_ARG_REGS));
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if (crtl->args.pretend_args_size > 0)
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t = fold_build_pointer_plus_hwi (t, -STACK_POINTER_OFFSET);
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t = build2 (MODIFY_EXPR, TREE_TYPE (args), args, t);
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TREE_SIDE_EFFECTS (t) = 1;
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expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
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/* Find the __skip area. */
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t = make_tree (TREE_TYPE (skip), virtual_incoming_args_rtx);
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t = fold_build_pointer_plus_hwi (t, -STACK_POINTER_OFFSET);
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t = build2 (MODIFY_EXPR, TREE_TYPE (skip), skip, t);
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TREE_SIDE_EFFECTS (t) = 1;
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expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
|
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}
|
||
|
||
|
||
/* Implement TARGET_SETUP_INCOMING_VARARGS. */
|
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static void
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tilepro_setup_incoming_varargs (cumulative_args_t cum,
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enum machine_mode mode,
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tree type, int *pretend_args, int no_rtl)
|
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{
|
||
CUMULATIVE_ARGS local_cum = *get_cumulative_args (cum);
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int first_reg;
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||
|
||
/* The caller has advanced CUM up to, but not beyond, the last named
|
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argument. Advance a local copy of CUM past the last "real" named
|
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argument, to find out how many registers are left over. */
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targetm.calls.function_arg_advance (pack_cumulative_args (&local_cum),
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mode, type, true);
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first_reg = local_cum;
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||
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if (local_cum < TILEPRO_NUM_ARG_REGS)
|
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{
|
||
*pretend_args = UNITS_PER_WORD * (TILEPRO_NUM_ARG_REGS - first_reg);
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||
|
||
if (!no_rtl)
|
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{
|
||
alias_set_type set = get_varargs_alias_set ();
|
||
rtx tmp =
|
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gen_rtx_MEM (BLKmode, plus_constant (Pmode, \
|
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virtual_incoming_args_rtx,
|
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-STACK_POINTER_OFFSET -
|
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UNITS_PER_WORD *
|
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(TILEPRO_NUM_ARG_REGS -
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first_reg)));
|
||
MEM_NOTRAP_P (tmp) = 1;
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set_mem_alias_set (tmp, set);
|
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move_block_from_reg (first_reg, tmp,
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TILEPRO_NUM_ARG_REGS - first_reg);
|
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}
|
||
}
|
||
else
|
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*pretend_args = 0;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_GIMPLIFY_VA_ARG_EXPR. Gimplify va_arg by updating
|
||
the va_list structure VALIST as required to retrieve an argument of
|
||
type TYPE, and returning that argument.
|
||
|
||
ret = va_arg(VALIST, TYPE);
|
||
|
||
generates code equivalent to:
|
||
|
||
paddedsize = (sizeof(TYPE) + 3) & -4;
|
||
if ((VALIST.__args + paddedsize > VALIST.__skip)
|
||
& (VALIST.__args <= VALIST.__skip))
|
||
addr = VALIST.__skip + STACK_POINTER_OFFSET;
|
||
else
|
||
addr = VALIST.__args;
|
||
VALIST.__args = addr + paddedsize;
|
||
ret = *(TYPE *)addr; */
|
||
static tree
|
||
tilepro_gimplify_va_arg_expr (tree valist, tree type, gimple_seq * pre_p,
|
||
gimple_seq * post_p ATTRIBUTE_UNUSED)
|
||
{
|
||
tree f_args, f_skip;
|
||
tree args, skip;
|
||
HOST_WIDE_INT size, rsize;
|
||
tree addr, tmp;
|
||
bool pass_by_reference_p;
|
||
|
||
f_args = TYPE_FIELDS (va_list_type_node);
|
||
f_skip = TREE_CHAIN (f_args);
|
||
|
||
args =
|
||
build3 (COMPONENT_REF, TREE_TYPE (f_args), valist, f_args, NULL_TREE);
|
||
skip =
|
||
build3 (COMPONENT_REF, TREE_TYPE (f_skip), valist, f_skip, NULL_TREE);
|
||
|
||
addr = create_tmp_var (ptr_type_node, "va_arg");
|
||
|
||
/* if an object is dynamically sized, a pointer to it is passed
|
||
instead of the object itself. */
|
||
pass_by_reference_p = pass_by_reference (NULL, TYPE_MODE (type), type,
|
||
false);
|
||
|
||
if (pass_by_reference_p)
|
||
type = build_pointer_type (type);
|
||
|
||
size = int_size_in_bytes (type);
|
||
rsize = ((size + UNITS_PER_WORD - 1) / UNITS_PER_WORD) * UNITS_PER_WORD;
|
||
|
||
/* If the alignment of the type is greater than the default for a
|
||
parameter, align to STACK_BOUNDARY. */
|
||
if (TYPE_ALIGN (type) > PARM_BOUNDARY)
|
||
{
|
||
/* Assert the only case we generate code for: when
|
||
stack boundary = 2 * parm boundary. */
|
||
gcc_assert (STACK_BOUNDARY == PARM_BOUNDARY * 2);
|
||
|
||
tmp = build2 (BIT_AND_EXPR, sizetype,
|
||
fold_convert (sizetype, unshare_expr (args)),
|
||
size_int (PARM_BOUNDARY / 8));
|
||
tmp = build2 (POINTER_PLUS_EXPR, ptr_type_node,
|
||
unshare_expr (args), tmp);
|
||
|
||
gimplify_assign (unshare_expr (args), tmp, pre_p);
|
||
}
|
||
|
||
/* Build conditional expression to calculate addr. The expression
|
||
will be gimplified later. */
|
||
tmp = fold_build_pointer_plus_hwi (unshare_expr (args), rsize);
|
||
tmp = build2 (TRUTH_AND_EXPR, boolean_type_node,
|
||
build2 (GT_EXPR, boolean_type_node, tmp, unshare_expr (skip)),
|
||
build2 (LE_EXPR, boolean_type_node, unshare_expr (args),
|
||
unshare_expr (skip)));
|
||
|
||
tmp = build3 (COND_EXPR, ptr_type_node, tmp,
|
||
build2 (POINTER_PLUS_EXPR, ptr_type_node, unshare_expr (skip),
|
||
size_int (STACK_POINTER_OFFSET)),
|
||
unshare_expr (args));
|
||
|
||
gimplify_assign (addr, tmp, pre_p);
|
||
|
||
/* Update VALIST.__args. */
|
||
tmp = fold_build_pointer_plus_hwi (addr, rsize);
|
||
gimplify_assign (unshare_expr (args), tmp, pre_p);
|
||
|
||
addr = fold_convert (build_pointer_type (type), addr);
|
||
|
||
if (pass_by_reference_p)
|
||
addr = build_va_arg_indirect_ref (addr);
|
||
|
||
return build_va_arg_indirect_ref (addr);
|
||
}
|
||
|
||
|
||
|
||
/* Implement TARGET_RTX_COSTS. */
|
||
static bool
|
||
tilepro_rtx_costs (rtx x, int code, int outer_code, int opno, int *total,
|
||
bool speed)
|
||
{
|
||
switch (code)
|
||
{
|
||
case CONST_INT:
|
||
/* If this is an 8-bit constant, return zero since it can be
|
||
used nearly anywhere with no cost. If it is a valid operand
|
||
for an ADD or AND, likewise return 0 if we know it will be
|
||
used in that context. Otherwise, return 2 since it might be
|
||
used there later. All other constants take at least two
|
||
insns. */
|
||
if (satisfies_constraint_I (x))
|
||
{
|
||
*total = 0;
|
||
return true;
|
||
}
|
||
else if (outer_code == PLUS && add_operand (x, VOIDmode))
|
||
{
|
||
/* Slightly penalize large constants even though we can add
|
||
them in one instruction, because it forces the use of
|
||
2-wide bundling mode. */
|
||
*total = 1;
|
||
return true;
|
||
}
|
||
else if (move_operand (x, SImode))
|
||
{
|
||
/* We can materialize in one move. */
|
||
*total = COSTS_N_INSNS (1);
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
/* We can materialize in two moves. */
|
||
*total = COSTS_N_INSNS (2);
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
|
||
case CONST:
|
||
case LABEL_REF:
|
||
case SYMBOL_REF:
|
||
*total = COSTS_N_INSNS (2);
|
||
return true;
|
||
|
||
case CONST_DOUBLE:
|
||
*total = COSTS_N_INSNS (4);
|
||
return true;
|
||
|
||
case HIGH:
|
||
*total = 0;
|
||
return true;
|
||
|
||
case MEM:
|
||
/* If outer-code was a sign or zero extension, a cost of
|
||
COSTS_N_INSNS (1) was already added in, so account for
|
||
that. */
|
||
if (outer_code == ZERO_EXTEND || outer_code == SIGN_EXTEND)
|
||
*total = COSTS_N_INSNS (1);
|
||
else
|
||
*total = COSTS_N_INSNS (2);
|
||
return true;
|
||
|
||
case PLUS:
|
||
/* Convey that s[123]a are efficient. */
|
||
if (GET_CODE (XEXP (x, 0)) == MULT
|
||
&& cint_248_operand (XEXP (XEXP (x, 0), 1), VOIDmode))
|
||
{
|
||
*total = (rtx_cost (XEXP (XEXP (x, 0), 0),
|
||
(enum rtx_code) outer_code, opno, speed)
|
||
+ rtx_cost (XEXP (x, 1),
|
||
(enum rtx_code) outer_code, opno, speed)
|
||
+ COSTS_N_INSNS (1));
|
||
return true;
|
||
}
|
||
return false;
|
||
|
||
case MULT:
|
||
*total = COSTS_N_INSNS (2);
|
||
return false;
|
||
|
||
case SIGN_EXTEND:
|
||
case ZERO_EXTEND:
|
||
if (outer_code == MULT)
|
||
*total = 0;
|
||
else
|
||
*total = COSTS_N_INSNS (1);
|
||
return false;
|
||
|
||
case DIV:
|
||
case UDIV:
|
||
case MOD:
|
||
case UMOD:
|
||
/* These are handled by software and are very expensive. */
|
||
*total = COSTS_N_INSNS (100);
|
||
return false;
|
||
|
||
case UNSPEC:
|
||
case UNSPEC_VOLATILE:
|
||
{
|
||
int num = XINT (x, 1);
|
||
|
||
if (num <= TILEPRO_LAST_LATENCY_1_INSN)
|
||
*total = COSTS_N_INSNS (1);
|
||
else if (num <= TILEPRO_LAST_LATENCY_2_INSN)
|
||
*total = COSTS_N_INSNS (2);
|
||
else if (num > TILEPRO_LAST_LATENCY_INSN)
|
||
{
|
||
if (outer_code == PLUS)
|
||
*total = 0;
|
||
else
|
||
*total = COSTS_N_INSNS (1);
|
||
}
|
||
else
|
||
{
|
||
switch (num)
|
||
{
|
||
case UNSPEC_BLOCKAGE:
|
||
case UNSPEC_NETWORK_BARRIER:
|
||
*total = 0;
|
||
break;
|
||
|
||
case UNSPEC_LNK_AND_LABEL:
|
||
case UNSPEC_MF:
|
||
case UNSPEC_NETWORK_RECEIVE:
|
||
case UNSPEC_NETWORK_SEND:
|
||
case UNSPEC_TLS_GD_ADD:
|
||
*total = COSTS_N_INSNS (1);
|
||
break;
|
||
|
||
case UNSPEC_TLS_IE_LOAD:
|
||
*total = COSTS_N_INSNS (2);
|
||
break;
|
||
|
||
case UNSPEC_SP_SET:
|
||
*total = COSTS_N_INSNS (3);
|
||
break;
|
||
|
||
case UNSPEC_SP_TEST:
|
||
*total = COSTS_N_INSNS (4);
|
||
break;
|
||
|
||
case UNSPEC_LATENCY_L2:
|
||
*total = COSTS_N_INSNS (8);
|
||
break;
|
||
|
||
case UNSPEC_TLS_GD_CALL:
|
||
*total = COSTS_N_INSNS (30);
|
||
break;
|
||
|
||
case UNSPEC_LATENCY_MISS:
|
||
*total = COSTS_N_INSNS (80);
|
||
break;
|
||
|
||
default:
|
||
*total = COSTS_N_INSNS (1);
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
default:
|
||
return false;
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/* Returns an SImode integer rtx with value VAL. */
|
||
static rtx
|
||
gen_int_si (HOST_WIDE_INT val)
|
||
{
|
||
return gen_int_mode (val, SImode);
|
||
}
|
||
|
||
|
||
/* Create a temporary variable to hold a partial result, to enable
|
||
CSE. */
|
||
static rtx
|
||
create_temp_reg_if_possible (enum machine_mode mode, rtx default_reg)
|
||
{
|
||
return can_create_pseudo_p ()? gen_reg_rtx (mode) : default_reg;
|
||
}
|
||
|
||
|
||
/* Functions to save and restore machine-specific function data. */
|
||
static struct machine_function *
|
||
tilepro_init_machine_status (void)
|
||
{
|
||
return ggc_cleared_alloc<machine_function> ();
|
||
}
|
||
|
||
|
||
/* Do anything needed before RTL is emitted for each function. */
|
||
void
|
||
tilepro_init_expanders (void)
|
||
{
|
||
/* Arrange to initialize and mark the machine per-function
|
||
status. */
|
||
init_machine_status = tilepro_init_machine_status;
|
||
|
||
if (cfun && cfun->machine && flag_pic)
|
||
{
|
||
static int label_num = 0;
|
||
|
||
char text_label_name[32];
|
||
|
||
struct machine_function *machine = cfun->machine;
|
||
|
||
ASM_GENERATE_INTERNAL_LABEL (text_label_name, "L_PICLNK", label_num++);
|
||
|
||
machine->text_label_symbol =
|
||
gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (text_label_name));
|
||
|
||
machine->text_label_rtx =
|
||
gen_rtx_REG (Pmode, TILEPRO_PIC_TEXT_LABEL_REGNUM);
|
||
|
||
machine->got_rtx = gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM);
|
||
|
||
machine->calls_tls_get_addr = false;
|
||
}
|
||
}
|
||
|
||
|
||
/* Return true if X contains a thread-local symbol. */
|
||
static bool
|
||
tilepro_tls_referenced_p (rtx x)
|
||
{
|
||
if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS)
|
||
x = XEXP (XEXP (x, 0), 0);
|
||
|
||
if (GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (x))
|
||
return true;
|
||
|
||
/* That's all we handle in tilepro_legitimize_tls_address for
|
||
now. */
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Return true if X requires a scratch register. It is given that
|
||
flag_pic is on and that X satisfies CONSTANT_P. */
|
||
static int
|
||
tilepro_pic_address_needs_scratch (rtx x)
|
||
{
|
||
if (GET_CODE (x) == CONST
|
||
&& GET_CODE (XEXP (x, 0)) == PLUS
|
||
&& (GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF
|
||
|| GET_CODE (XEXP (XEXP (x, 0), 0)) == LABEL_REF)
|
||
&& CONST_INT_P (XEXP (XEXP (x, 0), 1)))
|
||
return true;
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_LEGITIMATE_CONSTANT_P. This is all constants for
|
||
which we are willing to load the value into a register via a move
|
||
pattern. TLS cannot be treated as a constant because it can
|
||
include a function call. */
|
||
static bool
|
||
tilepro_legitimate_constant_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x)
|
||
{
|
||
switch (GET_CODE (x))
|
||
{
|
||
case CONST:
|
||
case SYMBOL_REF:
|
||
return !tilepro_tls_referenced_p (x);
|
||
|
||
default:
|
||
return true;
|
||
}
|
||
}
|
||
|
||
|
||
/* Return true if the constant value X is a legitimate general operand
|
||
when generating PIC code. It is given that flag_pic is on and that
|
||
X satisfies CONSTANT_P. */
|
||
bool
|
||
tilepro_legitimate_pic_operand_p (rtx x)
|
||
{
|
||
if (tilepro_pic_address_needs_scratch (x))
|
||
return false;
|
||
|
||
if (tilepro_tls_referenced_p (x))
|
||
return false;
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
/* Return true if the rtx X can be used as an address operand. */
|
||
static bool
|
||
tilepro_legitimate_address_p (enum machine_mode ARG_UNUSED (mode), rtx x,
|
||
bool strict)
|
||
{
|
||
if (GET_CODE (x) == SUBREG)
|
||
x = SUBREG_REG (x);
|
||
|
||
switch (GET_CODE (x))
|
||
{
|
||
case POST_INC:
|
||
case POST_DEC:
|
||
if (GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD)
|
||
return false;
|
||
|
||
x = XEXP (x, 0);
|
||
break;
|
||
|
||
case POST_MODIFY:
|
||
if (GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD)
|
||
return false;
|
||
|
||
if (GET_CODE (XEXP (x, 1)) != PLUS)
|
||
return false;
|
||
|
||
if (!rtx_equal_p (XEXP (x, 0), XEXP (XEXP (x, 1), 0)))
|
||
return false;
|
||
|
||
if (!satisfies_constraint_I (XEXP (XEXP (x, 1), 1)))
|
||
return false;
|
||
|
||
x = XEXP (x, 0);
|
||
break;
|
||
|
||
case REG:
|
||
break;
|
||
|
||
default:
|
||
return false;
|
||
}
|
||
|
||
/* Check if x is a valid reg. */
|
||
if (!REG_P (x))
|
||
return false;
|
||
|
||
if (strict)
|
||
return REGNO_OK_FOR_BASE_P (REGNO (x));
|
||
else
|
||
return true;
|
||
}
|
||
|
||
|
||
/* Return the rtx containing SYMBOL_REF to the text label. */
|
||
static rtx
|
||
tilepro_text_label_symbol (void)
|
||
{
|
||
return cfun->machine->text_label_symbol;
|
||
}
|
||
|
||
|
||
/* Return the register storing the value of the text label. */
|
||
static rtx
|
||
tilepro_text_label_rtx (void)
|
||
{
|
||
return cfun->machine->text_label_rtx;
|
||
}
|
||
|
||
|
||
/* Return the register storing the value of the global offset
|
||
table. */
|
||
static rtx
|
||
tilepro_got_rtx (void)
|
||
{
|
||
return cfun->machine->got_rtx;
|
||
}
|
||
|
||
|
||
/* Return the SYMBOL_REF for _GLOBAL_OFFSET_TABLE_. */
|
||
static rtx
|
||
tilepro_got_symbol (void)
|
||
{
|
||
if (g_got_symbol == NULL)
|
||
g_got_symbol = gen_rtx_SYMBOL_REF (Pmode, "_GLOBAL_OFFSET_TABLE_");
|
||
|
||
return g_got_symbol;
|
||
}
|
||
|
||
|
||
/* Return a reference to the got to be used by tls references. */
|
||
static rtx
|
||
tilepro_tls_got (void)
|
||
{
|
||
rtx temp;
|
||
if (flag_pic)
|
||
{
|
||
crtl->uses_pic_offset_table = 1;
|
||
return tilepro_got_rtx ();
|
||
}
|
||
|
||
temp = gen_reg_rtx (Pmode);
|
||
emit_move_insn (temp, tilepro_got_symbol ());
|
||
|
||
return temp;
|
||
}
|
||
|
||
|
||
/* ADDR contains a thread-local SYMBOL_REF. Generate code to compute
|
||
this (thread-local) address. */
|
||
static rtx
|
||
tilepro_legitimize_tls_address (rtx addr)
|
||
{
|
||
rtx ret;
|
||
|
||
gcc_assert (can_create_pseudo_p ());
|
||
|
||
if (GET_CODE (addr) == SYMBOL_REF)
|
||
switch (SYMBOL_REF_TLS_MODEL (addr))
|
||
{
|
||
case TLS_MODEL_GLOBAL_DYNAMIC:
|
||
case TLS_MODEL_LOCAL_DYNAMIC:
|
||
{
|
||
rtx r0, temp1, temp2, temp3, got, last;
|
||
|
||
ret = gen_reg_rtx (Pmode);
|
||
r0 = gen_rtx_REG (Pmode, 0);
|
||
temp1 = gen_reg_rtx (Pmode);
|
||
temp2 = gen_reg_rtx (Pmode);
|
||
temp3 = gen_reg_rtx (Pmode);
|
||
|
||
got = tilepro_tls_got ();
|
||
emit_insn (gen_tls_gd_addhi (temp1, got, addr));
|
||
emit_insn (gen_tls_gd_addlo (temp2, temp1, addr));
|
||
emit_move_insn (r0, temp2);
|
||
emit_insn (gen_tls_gd_call (addr));
|
||
emit_move_insn (temp3, r0);
|
||
last = emit_insn (gen_tls_gd_add (ret, temp3, addr));
|
||
set_unique_reg_note (last, REG_EQUAL, copy_rtx (addr));
|
||
break;
|
||
}
|
||
case TLS_MODEL_INITIAL_EXEC:
|
||
{
|
||
rtx temp1, temp2, temp3, got, last;
|
||
|
||
ret = gen_reg_rtx (Pmode);
|
||
temp1 = gen_reg_rtx (Pmode);
|
||
temp2 = gen_reg_rtx (Pmode);
|
||
temp3 = gen_reg_rtx (Pmode);
|
||
|
||
got = tilepro_tls_got ();
|
||
emit_insn (gen_tls_ie_addhi (temp1, got, addr));
|
||
emit_insn (gen_tls_ie_addlo (temp2, temp1, addr));
|
||
emit_insn (gen_tls_ie_load (temp3, temp2, addr));
|
||
last =
|
||
emit_move_insn(ret,
|
||
gen_rtx_PLUS (Pmode,
|
||
gen_rtx_REG (Pmode,
|
||
THREAD_POINTER_REGNUM),
|
||
temp3));
|
||
set_unique_reg_note (last, REG_EQUAL, copy_rtx (addr));
|
||
break;
|
||
}
|
||
case TLS_MODEL_LOCAL_EXEC:
|
||
{
|
||
rtx temp1, last;
|
||
|
||
ret = gen_reg_rtx (Pmode);
|
||
temp1 = gen_reg_rtx (Pmode);
|
||
|
||
emit_insn (gen_tls_le_addhi (temp1,
|
||
gen_rtx_REG (Pmode,
|
||
THREAD_POINTER_REGNUM),
|
||
addr));
|
||
last = emit_insn (gen_tls_le_addlo (ret, temp1, addr));
|
||
set_unique_reg_note (last, REG_EQUAL, copy_rtx (addr));
|
||
break;
|
||
}
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
else if (GET_CODE (addr) == CONST)
|
||
{
|
||
rtx base, offset;
|
||
|
||
gcc_assert (GET_CODE (XEXP (addr, 0)) == PLUS);
|
||
|
||
base = tilepro_legitimize_tls_address (XEXP (XEXP (addr, 0), 0));
|
||
offset = XEXP (XEXP (addr, 0), 1);
|
||
|
||
base = force_operand (base, NULL_RTX);
|
||
ret = force_reg (Pmode, gen_rtx_PLUS (Pmode, base, offset));
|
||
}
|
||
else
|
||
gcc_unreachable ();
|
||
|
||
return ret;
|
||
}
|
||
|
||
|
||
/* Legitimize PIC addresses. If the address is already
|
||
position-independent, we return ORIG. Newly generated
|
||
position-independent addresses go into a reg. This is REG if
|
||
nonzero, otherwise we allocate register(s) as necessary. */
|
||
static rtx
|
||
tilepro_legitimize_pic_address (rtx orig,
|
||
enum machine_mode mode ATTRIBUTE_UNUSED,
|
||
rtx reg)
|
||
{
|
||
if (GET_CODE (orig) == SYMBOL_REF)
|
||
{
|
||
rtx address, pic_ref;
|
||
|
||
if (reg == 0)
|
||
{
|
||
gcc_assert (can_create_pseudo_p ());
|
||
reg = gen_reg_rtx (Pmode);
|
||
}
|
||
|
||
if (SYMBOL_REF_LOCAL_P (orig))
|
||
{
|
||
/* If not during reload, allocate another temp reg here for
|
||
loading in the address, so that these instructions can be
|
||
optimized properly. */
|
||
rtx temp_reg = create_temp_reg_if_possible (Pmode, reg);
|
||
rtx text_label_symbol = tilepro_text_label_symbol ();
|
||
rtx text_label_rtx = tilepro_text_label_rtx ();
|
||
|
||
emit_insn (gen_addli_pcrel (temp_reg, text_label_rtx, orig,
|
||
text_label_symbol));
|
||
emit_insn (gen_auli_pcrel (temp_reg, temp_reg, orig,
|
||
text_label_symbol));
|
||
|
||
/* Note: this is conservative. We use the text_label but we
|
||
don't use the pic_offset_table. However, in some cases
|
||
we may need the pic_offset_table (see
|
||
tilepro_fixup_pcrel_references). */
|
||
crtl->uses_pic_offset_table = 1;
|
||
|
||
address = temp_reg;
|
||
|
||
emit_move_insn (reg, address);
|
||
return reg;
|
||
}
|
||
else
|
||
{
|
||
/* If not during reload, allocate another temp reg here for
|
||
loading in the address, so that these instructions can be
|
||
optimized properly. */
|
||
rtx temp_reg = create_temp_reg_if_possible (Pmode, reg);
|
||
|
||
gcc_assert (flag_pic);
|
||
if (flag_pic == 1)
|
||
{
|
||
emit_insn (gen_add_got16 (temp_reg,
|
||
tilepro_got_rtx (), orig));
|
||
}
|
||
else
|
||
{
|
||
rtx temp_reg2 = create_temp_reg_if_possible (Pmode, reg);
|
||
emit_insn (gen_addhi_got32 (temp_reg2,
|
||
tilepro_got_rtx (), orig));
|
||
emit_insn (gen_addlo_got32 (temp_reg, temp_reg2, orig));
|
||
}
|
||
|
||
address = temp_reg;
|
||
|
||
pic_ref = gen_const_mem (Pmode, address);
|
||
crtl->uses_pic_offset_table = 1;
|
||
emit_move_insn (reg, pic_ref);
|
||
/* The following put a REG_EQUAL note on this insn, so that
|
||
it can be optimized by loop. But it causes the label to
|
||
be optimized away. */
|
||
/* set_unique_reg_note (insn, REG_EQUAL, orig); */
|
||
return reg;
|
||
}
|
||
}
|
||
else if (GET_CODE (orig) == CONST)
|
||
{
|
||
rtx base, offset;
|
||
|
||
if (GET_CODE (XEXP (orig, 0)) == PLUS
|
||
&& XEXP (XEXP (orig, 0), 0) == tilepro_got_rtx ())
|
||
return orig;
|
||
|
||
if (reg == 0)
|
||
{
|
||
gcc_assert (can_create_pseudo_p ());
|
||
reg = gen_reg_rtx (Pmode);
|
||
}
|
||
|
||
gcc_assert (GET_CODE (XEXP (orig, 0)) == PLUS);
|
||
base = tilepro_legitimize_pic_address (XEXP (XEXP (orig, 0), 0), Pmode,
|
||
reg);
|
||
offset =
|
||
tilepro_legitimize_pic_address (XEXP (XEXP (orig, 0), 1), Pmode,
|
||
base == reg ? 0 : reg);
|
||
|
||
if (CONST_INT_P (offset))
|
||
{
|
||
if (can_create_pseudo_p ())
|
||
offset = force_reg (Pmode, offset);
|
||
else
|
||
/* If we reach here, then something is seriously
|
||
wrong. */
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
if (can_create_pseudo_p ())
|
||
return force_reg (Pmode, gen_rtx_PLUS (Pmode, base, offset));
|
||
else
|
||
gcc_unreachable ();
|
||
}
|
||
else if (GET_CODE (orig) == LABEL_REF)
|
||
{
|
||
rtx address, temp_reg;
|
||
rtx text_label_symbol;
|
||
rtx text_label_rtx;
|
||
|
||
if (reg == 0)
|
||
{
|
||
gcc_assert (can_create_pseudo_p ());
|
||
reg = gen_reg_rtx (Pmode);
|
||
}
|
||
|
||
/* If not during reload, allocate another temp reg here for
|
||
loading in the address, so that these instructions can be
|
||
optimized properly. */
|
||
temp_reg = create_temp_reg_if_possible (Pmode, reg);
|
||
text_label_symbol = tilepro_text_label_symbol ();
|
||
text_label_rtx = tilepro_text_label_rtx ();
|
||
|
||
emit_insn (gen_addli_pcrel (temp_reg, text_label_rtx, orig,
|
||
text_label_symbol));
|
||
emit_insn (gen_auli_pcrel (temp_reg, temp_reg, orig,
|
||
text_label_symbol));
|
||
|
||
/* Note: this is conservative. We use the text_label but we
|
||
don't use the pic_offset_table. */
|
||
crtl->uses_pic_offset_table = 1;
|
||
|
||
address = temp_reg;
|
||
|
||
emit_move_insn (reg, address);
|
||
|
||
return reg;
|
||
}
|
||
|
||
return orig;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_LEGITIMIZE_ADDRESS. */
|
||
static rtx
|
||
tilepro_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED,
|
||
enum machine_mode mode)
|
||
{
|
||
if (GET_MODE_SIZE (mode) <= UNITS_PER_WORD
|
||
&& symbolic_operand (x, Pmode) && tilepro_tls_referenced_p (x))
|
||
{
|
||
return tilepro_legitimize_tls_address (x);
|
||
}
|
||
else if (flag_pic)
|
||
{
|
||
return tilepro_legitimize_pic_address (x, mode, 0);
|
||
}
|
||
else
|
||
return x;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_DELEGITIMIZE_ADDRESS. */
|
||
static rtx
|
||
tilepro_delegitimize_address (rtx x)
|
||
{
|
||
x = delegitimize_mem_from_attrs (x);
|
||
|
||
if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == UNSPEC)
|
||
{
|
||
switch (XINT (XEXP (x, 0), 1))
|
||
{
|
||
case UNSPEC_PCREL_SYM:
|
||
case UNSPEC_GOT16_SYM:
|
||
case UNSPEC_GOT32_SYM:
|
||
case UNSPEC_TLS_GD:
|
||
case UNSPEC_TLS_IE:
|
||
x = XVECEXP (XEXP (x, 0), 0, 0);
|
||
break;
|
||
}
|
||
}
|
||
|
||
return x;
|
||
}
|
||
|
||
|
||
/* Emit code to load the PIC register. */
|
||
static void
|
||
load_pic_register (bool delay_pic_helper ATTRIBUTE_UNUSED)
|
||
{
|
||
int orig_flag_pic = flag_pic;
|
||
|
||
rtx got_symbol = tilepro_got_symbol ();
|
||
rtx text_label_symbol = tilepro_text_label_symbol ();
|
||
rtx text_label_rtx = tilepro_text_label_rtx ();
|
||
flag_pic = 0;
|
||
|
||
emit_insn (gen_insn_lnk_and_label (text_label_rtx, text_label_symbol));
|
||
|
||
emit_insn (gen_addli_pcrel (tilepro_got_rtx (),
|
||
text_label_rtx, got_symbol, text_label_symbol));
|
||
|
||
emit_insn (gen_auli_pcrel (tilepro_got_rtx (),
|
||
tilepro_got_rtx (),
|
||
got_symbol, text_label_symbol));
|
||
|
||
flag_pic = orig_flag_pic;
|
||
|
||
/* Need to emit this whether or not we obey regdecls, since
|
||
setjmp/longjmp can cause life info to screw up. ??? In the case
|
||
where we don't obey regdecls, this is not sufficient since we may
|
||
not fall out the bottom. */
|
||
emit_use (tilepro_got_rtx ());
|
||
}
|
||
|
||
|
||
/* Return the simd variant of the constant NUM of mode MODE, by
|
||
replicating it to fill an interger of mode SImode. NUM is first
|
||
truncated to fit in MODE. */
|
||
rtx
|
||
tilepro_simd_int (rtx num, enum machine_mode mode)
|
||
{
|
||
HOST_WIDE_INT n = 0;
|
||
|
||
gcc_assert (CONST_INT_P (num));
|
||
|
||
n = INTVAL (num);
|
||
|
||
switch (mode)
|
||
{
|
||
case QImode:
|
||
n = 0x01010101 * (n & 0x000000FF);
|
||
break;
|
||
case HImode:
|
||
n = 0x00010001 * (n & 0x0000FFFF);
|
||
break;
|
||
case SImode:
|
||
break;
|
||
case DImode:
|
||
break;
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
return gen_int_si (n);
|
||
}
|
||
|
||
|
||
/* Split one or more DImode RTL references into pairs of SImode
|
||
references. The RTL can be REG, offsettable MEM, integer constant,
|
||
or CONST_DOUBLE. "operands" is a pointer to an array of DImode RTL
|
||
to split and "num" is its length. lo_half and hi_half are output
|
||
arrays that parallel "operands". */
|
||
void
|
||
split_di (rtx operands[], int num, rtx lo_half[], rtx hi_half[])
|
||
{
|
||
while (num--)
|
||
{
|
||
rtx op = operands[num];
|
||
|
||
/* simplify_subreg refuse to split volatile memory addresses,
|
||
but we still have to handle it. */
|
||
if (MEM_P (op))
|
||
{
|
||
lo_half[num] = adjust_address (op, SImode, 0);
|
||
hi_half[num] = adjust_address (op, SImode, 4);
|
||
}
|
||
else
|
||
{
|
||
lo_half[num] = simplify_gen_subreg (SImode, op,
|
||
GET_MODE (op) == VOIDmode
|
||
? DImode : GET_MODE (op), 0);
|
||
hi_half[num] = simplify_gen_subreg (SImode, op,
|
||
GET_MODE (op) == VOIDmode
|
||
? DImode : GET_MODE (op), 4);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/* Returns true iff val can be moved into a register in one
|
||
instruction. And if it can, it emits the code to move the
|
||
constant.
|
||
|
||
If three_wide_only is true, this insists on an instruction that
|
||
works in a bundle containing three instructions. */
|
||
static bool
|
||
expand_set_cint32_one_inst (rtx dest_reg,
|
||
HOST_WIDE_INT val, bool three_wide_only)
|
||
{
|
||
val = trunc_int_for_mode (val, SImode);
|
||
|
||
if (val == trunc_int_for_mode (val, QImode))
|
||
{
|
||
/* Success! */
|
||
emit_move_insn (dest_reg, GEN_INT (val));
|
||
return true;
|
||
}
|
||
else if (!three_wide_only)
|
||
{
|
||
rtx imm_op = GEN_INT (val);
|
||
|
||
if (satisfies_constraint_J (imm_op)
|
||
|| satisfies_constraint_K (imm_op)
|
||
|| satisfies_constraint_N (imm_op)
|
||
|| satisfies_constraint_P (imm_op))
|
||
{
|
||
emit_move_insn (dest_reg, imm_op);
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Implement SImode rotatert. */
|
||
static HOST_WIDE_INT
|
||
rotate_right (HOST_WIDE_INT n, int count)
|
||
{
|
||
unsigned HOST_WIDE_INT x = n & 0xFFFFFFFF;
|
||
if (count == 0)
|
||
return x;
|
||
return ((x >> count) | (x << (32 - count))) & 0xFFFFFFFF;
|
||
}
|
||
|
||
|
||
/* Return true iff n contains exactly one contiguous sequence of 1
|
||
bits, possibly wrapping around from high bits to low bits. */
|
||
bool
|
||
tilepro_bitfield_operand_p (HOST_WIDE_INT n, int *first_bit, int *last_bit)
|
||
{
|
||
int i;
|
||
|
||
if (n == 0)
|
||
return false;
|
||
|
||
for (i = 0; i < 32; i++)
|
||
{
|
||
unsigned HOST_WIDE_INT x = rotate_right (n, i);
|
||
if (!(x & 1))
|
||
continue;
|
||
|
||
/* See if x is a power of two minus one, i.e. only consecutive 1
|
||
bits starting from bit 0. */
|
||
if ((x & (x + 1)) == 0)
|
||
{
|
||
if (first_bit != NULL)
|
||
*first_bit = i;
|
||
if (last_bit != NULL)
|
||
*last_bit = (i + exact_log2 (x ^ (x >> 1))) & 31;
|
||
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Create code to move the CONST_INT value in src_val to dest_reg. */
|
||
static void
|
||
expand_set_cint32 (rtx dest_reg, rtx src_val)
|
||
{
|
||
HOST_WIDE_INT val;
|
||
int leading_zeroes, trailing_zeroes;
|
||
int lower, upper;
|
||
int three_wide_only;
|
||
rtx temp;
|
||
|
||
gcc_assert (CONST_INT_P (src_val));
|
||
val = trunc_int_for_mode (INTVAL (src_val), SImode);
|
||
|
||
/* See if we can generate the constant in one instruction. */
|
||
if (expand_set_cint32_one_inst (dest_reg, val, false))
|
||
return;
|
||
|
||
/* Create a temporary variable to hold a partial result, to enable
|
||
CSE. */
|
||
temp = create_temp_reg_if_possible (SImode, dest_reg);
|
||
|
||
leading_zeroes = 31 - floor_log2 (val & 0xFFFFFFFF);
|
||
trailing_zeroes = exact_log2 (val & -val);
|
||
|
||
lower = trunc_int_for_mode (val, HImode);
|
||
upper = trunc_int_for_mode ((val - lower) >> 16, HImode);
|
||
|
||
/* First try all three-wide instructions that generate a constant
|
||
(i.e. movei) followed by various shifts and rotates. If none of
|
||
those work, try various two-wide ways of generating a constant
|
||
followed by various shifts and rotates. */
|
||
for (three_wide_only = 1; three_wide_only >= 0; three_wide_only--)
|
||
{
|
||
int count;
|
||
|
||
if (expand_set_cint32_one_inst (temp, val >> trailing_zeroes,
|
||
three_wide_only))
|
||
{
|
||
/* 0xFFFFA500 becomes:
|
||
movei temp, 0xFFFFFFA5
|
||
shli dest, temp, 8 */
|
||
emit_move_insn (dest_reg,
|
||
gen_rtx_ASHIFT (SImode, temp,
|
||
GEN_INT (trailing_zeroes)));
|
||
return;
|
||
}
|
||
|
||
if (expand_set_cint32_one_inst (temp, val << leading_zeroes,
|
||
three_wide_only))
|
||
{
|
||
/* 0x7FFFFFFF becomes:
|
||
movei temp, -2
|
||
shri dest, temp, 1 */
|
||
emit_move_insn (dest_reg,
|
||
gen_rtx_LSHIFTRT (SImode, temp,
|
||
GEN_INT (leading_zeroes)));
|
||
return;
|
||
}
|
||
|
||
/* Try rotating a one-instruction immediate, since rotate is
|
||
3-wide. */
|
||
for (count = 1; count < 32; count++)
|
||
{
|
||
HOST_WIDE_INT r = rotate_right (val, count);
|
||
if (expand_set_cint32_one_inst (temp, r, three_wide_only))
|
||
{
|
||
/* 0xFFA5FFFF becomes:
|
||
movei temp, 0xFFFFFFA5
|
||
rli dest, temp, 16 */
|
||
emit_move_insn (dest_reg,
|
||
gen_rtx_ROTATE (SImode, temp, GEN_INT (count)));
|
||
return;
|
||
}
|
||
}
|
||
|
||
if (lower == trunc_int_for_mode (lower, QImode))
|
||
{
|
||
/* We failed to use two 3-wide instructions, but the low 16
|
||
bits are a small number so just use a 2-wide + 3-wide
|
||
auli + addi pair rather than anything more exotic.
|
||
|
||
0x12340056 becomes:
|
||
auli temp, zero, 0x1234
|
||
addi dest, temp, 0x56 */
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Fallback case: use a auli + addli/addi pair. */
|
||
emit_move_insn (temp, GEN_INT (upper << 16));
|
||
emit_move_insn (dest_reg, (gen_rtx_PLUS (SImode, temp, GEN_INT (lower))));
|
||
}
|
||
|
||
|
||
/* Load OP1, a 32-bit constant, into OP0, a register. We know it
|
||
can't be done in one insn when we get here, the move expander
|
||
guarantees this. */
|
||
void
|
||
tilepro_expand_set_const32 (rtx op0, rtx op1)
|
||
{
|
||
enum machine_mode mode = GET_MODE (op0);
|
||
rtx temp;
|
||
|
||
if (CONST_INT_P (op1))
|
||
{
|
||
/* TODO: I don't know if we want to split large constants now,
|
||
or wait until later (with a define_split).
|
||
|
||
Does splitting early help CSE? Does it harm other
|
||
optimizations that might fold loads? */
|
||
expand_set_cint32 (op0, op1);
|
||
}
|
||
else
|
||
{
|
||
temp = create_temp_reg_if_possible (mode, op0);
|
||
|
||
/* A symbol, emit in the traditional way. */
|
||
emit_move_insn (temp, gen_rtx_HIGH (mode, op1));
|
||
emit_move_insn (op0, gen_rtx_LO_SUM (mode, temp, op1));
|
||
}
|
||
}
|
||
|
||
|
||
/* Expand a move instruction. Return true if all work is done. */
|
||
bool
|
||
tilepro_expand_mov (enum machine_mode mode, rtx *operands)
|
||
{
|
||
/* Handle sets of MEM first. */
|
||
if (MEM_P (operands[0]))
|
||
{
|
||
if (can_create_pseudo_p ())
|
||
operands[0] = validize_mem (operands[0]);
|
||
|
||
if (reg_or_0_operand (operands[1], mode))
|
||
return false;
|
||
|
||
if (!reload_in_progress)
|
||
operands[1] = force_reg (mode, operands[1]);
|
||
}
|
||
|
||
/* Fixup TLS cases. */
|
||
if (CONSTANT_P (operands[1]) && tilepro_tls_referenced_p (operands[1]))
|
||
{
|
||
operands[1] = tilepro_legitimize_tls_address (operands[1]);
|
||
return false;
|
||
}
|
||
|
||
/* Fixup PIC cases. */
|
||
if (flag_pic && CONSTANT_P (operands[1]))
|
||
{
|
||
if (tilepro_pic_address_needs_scratch (operands[1]))
|
||
operands[1] = tilepro_legitimize_pic_address (operands[1], mode, 0);
|
||
|
||
if (symbolic_operand (operands[1], mode))
|
||
{
|
||
operands[1] = tilepro_legitimize_pic_address (operands[1],
|
||
mode,
|
||
(reload_in_progress ?
|
||
operands[0] :
|
||
NULL_RTX));
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/* Fixup for UNSPEC addresses. */
|
||
if (flag_pic
|
||
&& GET_CODE (operands[1]) == HIGH
|
||
&& GET_CODE (XEXP (operands[1], 0)) == CONST
|
||
&& GET_CODE (XEXP (XEXP (operands[1], 0), 0)) == UNSPEC)
|
||
{
|
||
rtx unspec = XEXP (XEXP (operands[1], 0), 0);
|
||
int unspec_num = XINT (unspec, 1);
|
||
if (unspec_num == UNSPEC_PCREL_SYM)
|
||
{
|
||
emit_insn (gen_auli_pcrel (operands[0], const0_rtx,
|
||
XVECEXP (unspec, 0, 0),
|
||
XVECEXP (unspec, 0, 1)));
|
||
return true;
|
||
}
|
||
else if (flag_pic == 2 && unspec_num == UNSPEC_GOT32_SYM)
|
||
{
|
||
emit_insn (gen_addhi_got32 (operands[0], const0_rtx,
|
||
XVECEXP (unspec, 0, 0)));
|
||
return true;
|
||
}
|
||
else if (HAVE_AS_TLS && unspec_num == UNSPEC_TLS_GD)
|
||
{
|
||
emit_insn (gen_tls_gd_addhi (operands[0], const0_rtx,
|
||
XVECEXP (unspec, 0, 0)));
|
||
return true;
|
||
}
|
||
else if (HAVE_AS_TLS && unspec_num == UNSPEC_TLS_IE)
|
||
{
|
||
emit_insn (gen_tls_ie_addhi (operands[0], const0_rtx,
|
||
XVECEXP (unspec, 0, 0)));
|
||
return true;
|
||
}
|
||
else if (HAVE_AS_TLS && unspec_num == UNSPEC_TLS_LE)
|
||
{
|
||
emit_insn (gen_tls_le_addhi (operands[0], const0_rtx,
|
||
XVECEXP (unspec, 0, 0)));
|
||
return true;
|
||
}
|
||
}
|
||
|
||
/* Accept non-constants and valid constants unmodified. */
|
||
if (!CONSTANT_P (operands[1])
|
||
|| GET_CODE (operands[1]) == HIGH || move_operand (operands[1], mode))
|
||
return false;
|
||
|
||
/* Split large integers. */
|
||
if (GET_MODE_SIZE (mode) <= 4)
|
||
{
|
||
tilepro_expand_set_const32 (operands[0], operands[1]);
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Expand the "insv" pattern. */
|
||
void
|
||
tilepro_expand_insv (rtx operands[4])
|
||
{
|
||
rtx first_rtx = operands[2];
|
||
HOST_WIDE_INT first = INTVAL (first_rtx);
|
||
HOST_WIDE_INT width = INTVAL (operands[1]);
|
||
rtx v = operands[3];
|
||
|
||
/* Shift the inserted bits into position. */
|
||
if (first != 0)
|
||
{
|
||
if (CONST_INT_P (v))
|
||
{
|
||
/* Shift the constant into mm position. */
|
||
v = gen_int_si (INTVAL (v) << first);
|
||
}
|
||
else
|
||
{
|
||
/* Shift over the value to be inserted. */
|
||
rtx tmp = gen_reg_rtx (SImode);
|
||
emit_insn (gen_ashlsi3 (tmp, v, first_rtx));
|
||
v = tmp;
|
||
}
|
||
}
|
||
|
||
/* Insert the shifted bits using an 'mm' insn. */
|
||
emit_insn (gen_insn_mm (operands[0], v, operands[0], first_rtx,
|
||
GEN_INT (first + width - 1)));
|
||
}
|
||
|
||
|
||
/* Expand unaligned loads. */
|
||
void
|
||
tilepro_expand_unaligned_load (rtx dest_reg, rtx mem, HOST_WIDE_INT bitsize,
|
||
HOST_WIDE_INT bit_offset, bool sign)
|
||
{
|
||
enum machine_mode mode;
|
||
rtx addr_lo, addr_hi;
|
||
rtx mem_lo, mem_hi, hi;
|
||
rtx mema, wide_result;
|
||
int last_byte_offset;
|
||
HOST_WIDE_INT byte_offset = bit_offset / BITS_PER_UNIT;
|
||
|
||
mode = GET_MODE (dest_reg);
|
||
|
||
hi = gen_reg_rtx (mode);
|
||
|
||
if (bitsize == 2 * BITS_PER_UNIT && (bit_offset % BITS_PER_UNIT) == 0)
|
||
{
|
||
rtx lo;
|
||
|
||
/* When just loading a two byte value, we can load the two bytes
|
||
individually and combine them efficiently. */
|
||
|
||
mem_lo = adjust_address (mem, QImode, byte_offset);
|
||
mem_hi = adjust_address (mem, QImode, byte_offset + 1);
|
||
|
||
lo = gen_reg_rtx (mode);
|
||
emit_insn (gen_zero_extendqisi2 (lo, mem_lo));
|
||
|
||
if (sign)
|
||
{
|
||
rtx tmp = gen_reg_rtx (mode);
|
||
|
||
/* Do a signed load of the second byte then shift and OR it
|
||
in. */
|
||
emit_insn (gen_extendqisi2 (gen_lowpart (SImode, hi), mem_hi));
|
||
emit_insn (gen_ashlsi3 (gen_lowpart (SImode, tmp),
|
||
gen_lowpart (SImode, hi), GEN_INT (8)));
|
||
emit_insn (gen_iorsi3 (gen_lowpart (SImode, dest_reg),
|
||
gen_lowpart (SImode, lo),
|
||
gen_lowpart (SImode, tmp)));
|
||
}
|
||
else
|
||
{
|
||
/* Do two unsigned loads and use intlb to interleave
|
||
them. */
|
||
emit_insn (gen_zero_extendqisi2 (gen_lowpart (SImode, hi), mem_hi));
|
||
emit_insn (gen_insn_intlb (gen_lowpart (SImode, dest_reg),
|
||
gen_lowpart (SImode, hi),
|
||
gen_lowpart (SImode, lo)));
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
mema = XEXP (mem, 0);
|
||
|
||
/* AND addresses cannot be in any alias set, since they may
|
||
implicitly alias surrounding code. Ideally we'd have some alias
|
||
set that covered all types except those with alignment 8 or
|
||
higher. */
|
||
addr_lo = force_reg (Pmode, plus_constant (Pmode, mema, byte_offset));
|
||
mem_lo = change_address (mem, mode,
|
||
gen_rtx_AND (Pmode, addr_lo, GEN_INT (-4)));
|
||
set_mem_alias_set (mem_lo, 0);
|
||
|
||
/* Load the high word at an address that will not fault if the low
|
||
address is aligned and at the very end of a page. */
|
||
last_byte_offset = (bit_offset + bitsize - 1) / BITS_PER_UNIT;
|
||
addr_hi = force_reg (Pmode, plus_constant (Pmode, mema, last_byte_offset));
|
||
mem_hi = change_address (mem, mode,
|
||
gen_rtx_AND (Pmode, addr_hi, GEN_INT (-4)));
|
||
set_mem_alias_set (mem_hi, 0);
|
||
|
||
if (bitsize == 32)
|
||
{
|
||
addr_lo = make_safe_from (addr_lo, dest_reg);
|
||
wide_result = dest_reg;
|
||
}
|
||
else
|
||
{
|
||
wide_result = gen_reg_rtx (mode);
|
||
}
|
||
|
||
/* Load hi first in case dest_reg is used in mema. */
|
||
emit_move_insn (hi, mem_hi);
|
||
emit_move_insn (wide_result, mem_lo);
|
||
|
||
emit_insn (gen_insn_dword_align (gen_lowpart (SImode, wide_result),
|
||
gen_lowpart (SImode, wide_result),
|
||
gen_lowpart (SImode, hi), addr_lo));
|
||
|
||
if (bitsize != 32)
|
||
{
|
||
rtx extracted =
|
||
extract_bit_field (gen_lowpart (SImode, wide_result),
|
||
bitsize, bit_offset % BITS_PER_UNIT,
|
||
!sign, gen_lowpart (SImode, dest_reg),
|
||
SImode, SImode);
|
||
|
||
if (extracted != dest_reg)
|
||
emit_move_insn (dest_reg, gen_lowpart (SImode, extracted));
|
||
}
|
||
}
|
||
|
||
|
||
/* Expand unaligned stores. */
|
||
static void
|
||
tilepro_expand_unaligned_store (rtx mem, rtx src, HOST_WIDE_INT bitsize,
|
||
HOST_WIDE_INT bit_offset)
|
||
{
|
||
HOST_WIDE_INT byte_offset = bit_offset / BITS_PER_UNIT;
|
||
HOST_WIDE_INT bytesize = bitsize / BITS_PER_UNIT;
|
||
HOST_WIDE_INT shift_amt;
|
||
HOST_WIDE_INT i;
|
||
rtx mem_addr;
|
||
rtx store_val;
|
||
|
||
for (i = 0, shift_amt = 0; i < bytesize; i++, shift_amt += BITS_PER_UNIT)
|
||
{
|
||
mem_addr = adjust_address (mem, QImode, byte_offset + i);
|
||
|
||
if (shift_amt)
|
||
{
|
||
store_val = expand_simple_binop (SImode, LSHIFTRT,
|
||
gen_lowpart (SImode, src),
|
||
GEN_INT (shift_amt), NULL, 1,
|
||
OPTAB_LIB_WIDEN);
|
||
store_val = gen_lowpart (QImode, store_val);
|
||
}
|
||
else
|
||
{
|
||
store_val = gen_lowpart (QImode, src);
|
||
}
|
||
|
||
emit_move_insn (mem_addr, store_val);
|
||
}
|
||
}
|
||
|
||
|
||
/* Implement the movmisalign patterns. One of the operands is a
|
||
memory that is not naturally aligned. Emit instructions to load
|
||
it. */
|
||
void
|
||
tilepro_expand_movmisalign (enum machine_mode mode, rtx *operands)
|
||
{
|
||
if (MEM_P (operands[1]))
|
||
{
|
||
rtx tmp;
|
||
|
||
if (register_operand (operands[0], mode))
|
||
tmp = operands[0];
|
||
else
|
||
tmp = gen_reg_rtx (mode);
|
||
|
||
tilepro_expand_unaligned_load (tmp, operands[1],
|
||
GET_MODE_BITSIZE (mode), 0, true);
|
||
|
||
if (tmp != operands[0])
|
||
emit_move_insn (operands[0], tmp);
|
||
}
|
||
else if (MEM_P (operands[0]))
|
||
{
|
||
if (!reg_or_0_operand (operands[1], mode))
|
||
operands[1] = force_reg (mode, operands[1]);
|
||
|
||
tilepro_expand_unaligned_store (operands[0], operands[1],
|
||
GET_MODE_BITSIZE (mode), 0);
|
||
}
|
||
else
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
|
||
/* Implement the addsi3 pattern. */
|
||
bool
|
||
tilepro_expand_addsi (rtx op0, rtx op1, rtx op2)
|
||
{
|
||
rtx temp;
|
||
HOST_WIDE_INT n;
|
||
HOST_WIDE_INT high;
|
||
|
||
/* Skip anything that only takes one instruction. */
|
||
if (add_operand (op2, SImode))
|
||
return false;
|
||
|
||
/* We can only optimize ints here (it should be impossible to get
|
||
here with any other type, but it is harmless to check. */
|
||
if (!CONST_INT_P (op2))
|
||
return false;
|
||
|
||
temp = create_temp_reg_if_possible (SImode, op0);
|
||
n = INTVAL (op2);
|
||
high = (n + (n & 0x8000)) & ~0xffff;
|
||
|
||
emit_move_insn (temp, gen_rtx_PLUS (SImode, op1, gen_int_si (high)));
|
||
emit_move_insn (op0, gen_rtx_PLUS (SImode, temp, gen_int_si (n - high)));
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
/* Implement the allocate_stack pattern (alloca). */
|
||
void
|
||
tilepro_allocate_stack (rtx op0, rtx op1)
|
||
{
|
||
/* Technically the correct way to initialize chain_loc is with
|
||
* gen_frame_mem() instead of gen_rtx_MEM(), but gen_frame_mem()
|
||
* sets the alias_set to that of a frame reference. Some of our
|
||
* tests rely on some unsafe assumption about when the chaining
|
||
* update is done, we need to be conservative about reordering the
|
||
* chaining instructions.
|
||
*/
|
||
rtx fp_addr = gen_reg_rtx (Pmode);
|
||
rtx fp_value = gen_reg_rtx (Pmode);
|
||
rtx fp_loc;
|
||
|
||
emit_move_insn (fp_addr, gen_rtx_PLUS (Pmode, stack_pointer_rtx,
|
||
GEN_INT (UNITS_PER_WORD)));
|
||
|
||
fp_loc = gen_frame_mem (Pmode, fp_addr);
|
||
|
||
emit_move_insn (fp_value, fp_loc);
|
||
|
||
op1 = force_reg (Pmode, op1);
|
||
|
||
emit_move_insn (stack_pointer_rtx,
|
||
gen_rtx_MINUS (Pmode, stack_pointer_rtx, op1));
|
||
|
||
emit_move_insn (fp_addr, gen_rtx_PLUS (Pmode, stack_pointer_rtx,
|
||
GEN_INT (UNITS_PER_WORD)));
|
||
|
||
fp_loc = gen_frame_mem (Pmode, fp_addr);
|
||
|
||
emit_move_insn (fp_loc, fp_value);
|
||
|
||
emit_move_insn (op0, virtual_stack_dynamic_rtx);
|
||
}
|
||
|
||
|
||
|
||
/* Multiplies */
|
||
|
||
/* Returns the insn_code in ENTRY. */
|
||
static enum insn_code
|
||
tilepro_multiply_get_opcode (const struct tilepro_multiply_insn_seq_entry
|
||
*entry)
|
||
{
|
||
return tilepro_multiply_insn_seq_decode_opcode[entry->compressed_opcode];
|
||
}
|
||
|
||
|
||
/* Returns the length of the 'op' array. */
|
||
static int
|
||
tilepro_multiply_get_num_ops (const struct tilepro_multiply_insn_seq *seq)
|
||
{
|
||
/* The array either uses all of its allocated slots or is terminated
|
||
by a bogus opcode. Either way, the array size is the index of the
|
||
last valid opcode plus one. */
|
||
int i;
|
||
for (i = tilepro_multiply_insn_seq_MAX_OPERATIONS - 1; i >= 0; i--)
|
||
if (tilepro_multiply_get_opcode (&seq->op[i]) != CODE_FOR_nothing)
|
||
return i + 1;
|
||
|
||
/* An empty array is not allowed. */
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
|
||
/* We precompute a number of expression trees for multiplying by
|
||
constants. This generates code for such an expression tree by
|
||
walking through the nodes in the tree (which are conveniently
|
||
pre-linearized) and emitting an instruction for each one. */
|
||
static void
|
||
tilepro_expand_constant_multiply_given_sequence (rtx result, rtx src,
|
||
const struct
|
||
tilepro_multiply_insn_seq
|
||
*seq)
|
||
{
|
||
int i;
|
||
int num_ops;
|
||
|
||
/* Keep track of the subexpressions computed so far, so later
|
||
instructions can refer to them. We seed the array with zero and
|
||
the value being multiplied. */
|
||
int num_subexprs = 2;
|
||
rtx subexprs[tilepro_multiply_insn_seq_MAX_OPERATIONS + 2];
|
||
subexprs[0] = const0_rtx;
|
||
subexprs[1] = src;
|
||
|
||
/* Determine how many instructions we are going to generate. */
|
||
num_ops = tilepro_multiply_get_num_ops (seq);
|
||
gcc_assert (num_ops > 0
|
||
&& num_ops <= tilepro_multiply_insn_seq_MAX_OPERATIONS);
|
||
|
||
for (i = 0; i < num_ops; i++)
|
||
{
|
||
const struct tilepro_multiply_insn_seq_entry *entry = &seq->op[i];
|
||
|
||
/* Figure out where to store the output of this instruction. */
|
||
const bool is_last_op = (i + 1 == num_ops);
|
||
rtx out = is_last_op ? result : gen_reg_rtx (SImode);
|
||
|
||
enum insn_code opcode = tilepro_multiply_get_opcode (entry);
|
||
if (opcode == CODE_FOR_ashlsi3)
|
||
{
|
||
/* Handle shift by immediate. This is a special case because
|
||
the meaning of the second operand is a constant shift
|
||
count rather than an operand index. */
|
||
|
||
/* Make sure the shift count is in range. Zero should not
|
||
happen. */
|
||
const int shift_count = entry->rhs;
|
||
gcc_assert (shift_count > 0 && shift_count < 32);
|
||
|
||
/* Emit the actual instruction. */
|
||
emit_insn (GEN_FCN (opcode)
|
||
(out, subexprs[entry->lhs],
|
||
gen_rtx_CONST_INT (SImode, shift_count)));
|
||
}
|
||
else
|
||
{
|
||
/* Handle a normal two-operand instruction, such as add or
|
||
s1a. */
|
||
|
||
/* Make sure we are referring to a previously computed
|
||
subexpression. */
|
||
gcc_assert (entry->rhs < num_subexprs);
|
||
|
||
/* Emit the actual instruction. */
|
||
emit_insn (GEN_FCN (opcode)
|
||
(out, subexprs[entry->lhs], subexprs[entry->rhs]));
|
||
}
|
||
|
||
/* Record this subexpression for use by later expressions. */
|
||
subexprs[num_subexprs++] = out;
|
||
}
|
||
}
|
||
|
||
|
||
/* bsearch helper function. */
|
||
static int
|
||
tilepro_compare_multipliers (const void *key, const void *t)
|
||
{
|
||
return *(const int *) key -
|
||
((const struct tilepro_multiply_insn_seq *) t)->multiplier;
|
||
}
|
||
|
||
|
||
/* Returns the tilepro_multiply_insn_seq for multiplier, or NULL if
|
||
none exists. */
|
||
static const struct tilepro_multiply_insn_seq *
|
||
tilepro_find_multiply_insn_seq_for_constant (int multiplier)
|
||
{
|
||
return ((const struct tilepro_multiply_insn_seq *)
|
||
bsearch (&multiplier, tilepro_multiply_insn_seq_table,
|
||
tilepro_multiply_insn_seq_table_size,
|
||
sizeof tilepro_multiply_insn_seq_table[0],
|
||
tilepro_compare_multipliers));
|
||
}
|
||
|
||
|
||
/* Try to a expand constant multiply in SImode by looking it up in a
|
||
precompiled table. OP0 is the result operand, OP1 is the source
|
||
operand, and MULTIPLIER is the value of the constant. Return true
|
||
if it succeeds. */
|
||
static bool
|
||
tilepro_expand_const_mulsi (rtx op0, rtx op1, int multiplier)
|
||
{
|
||
/* See if we have precomputed an efficient way to multiply by this
|
||
constant. */
|
||
const struct tilepro_multiply_insn_seq *seq =
|
||
tilepro_find_multiply_insn_seq_for_constant (multiplier);
|
||
if (seq != NULL)
|
||
{
|
||
tilepro_expand_constant_multiply_given_sequence (op0, op1, seq);
|
||
return true;
|
||
}
|
||
else
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Expand the mulsi pattern. */
|
||
bool
|
||
tilepro_expand_mulsi (rtx op0, rtx op1, rtx op2)
|
||
{
|
||
if (CONST_INT_P (op2))
|
||
{
|
||
HOST_WIDE_INT n = trunc_int_for_mode (INTVAL (op2), SImode);
|
||
return tilepro_expand_const_mulsi (op0, op1, n);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Expand a high multiply pattern in SImode. RESULT, OP1, OP2 are the
|
||
operands, and SIGN is true if it's a signed multiply, and false if
|
||
it's an unsigned multiply. */
|
||
static void
|
||
tilepro_expand_high_multiply (rtx result, rtx op1, rtx op2, bool sign)
|
||
{
|
||
rtx tmp0 = gen_reg_rtx (SImode);
|
||
rtx tmp1 = gen_reg_rtx (SImode);
|
||
rtx tmp2 = gen_reg_rtx (SImode);
|
||
rtx tmp3 = gen_reg_rtx (SImode);
|
||
rtx tmp4 = gen_reg_rtx (SImode);
|
||
rtx tmp5 = gen_reg_rtx (SImode);
|
||
rtx tmp6 = gen_reg_rtx (SImode);
|
||
rtx tmp7 = gen_reg_rtx (SImode);
|
||
rtx tmp8 = gen_reg_rtx (SImode);
|
||
rtx tmp9 = gen_reg_rtx (SImode);
|
||
rtx tmp10 = gen_reg_rtx (SImode);
|
||
rtx tmp11 = gen_reg_rtx (SImode);
|
||
rtx tmp12 = gen_reg_rtx (SImode);
|
||
rtx tmp13 = gen_reg_rtx (SImode);
|
||
rtx result_lo = gen_reg_rtx (SImode);
|
||
|
||
if (sign)
|
||
{
|
||
emit_insn (gen_insn_mulhl_su (tmp0, op1, op2));
|
||
emit_insn (gen_insn_mulhl_su (tmp1, op2, op1));
|
||
emit_insn (gen_insn_mulll_uu (tmp2, op1, op2));
|
||
emit_insn (gen_insn_mulhh_ss (tmp3, op1, op2));
|
||
}
|
||
else
|
||
{
|
||
emit_insn (gen_insn_mulhl_uu (tmp0, op1, op2));
|
||
emit_insn (gen_insn_mulhl_uu (tmp1, op2, op1));
|
||
emit_insn (gen_insn_mulll_uu (tmp2, op1, op2));
|
||
emit_insn (gen_insn_mulhh_uu (tmp3, op1, op2));
|
||
}
|
||
|
||
emit_move_insn (tmp4, (gen_rtx_ASHIFT (SImode, tmp0, GEN_INT (16))));
|
||
|
||
emit_move_insn (tmp5, (gen_rtx_ASHIFT (SImode, tmp1, GEN_INT (16))));
|
||
|
||
emit_move_insn (tmp6, (gen_rtx_PLUS (SImode, tmp4, tmp5)));
|
||
emit_move_insn (result_lo, (gen_rtx_PLUS (SImode, tmp2, tmp6)));
|
||
|
||
emit_move_insn (tmp7, gen_rtx_LTU (SImode, tmp6, tmp4));
|
||
emit_move_insn (tmp8, gen_rtx_LTU (SImode, result_lo, tmp2));
|
||
|
||
if (sign)
|
||
{
|
||
emit_move_insn (tmp9, (gen_rtx_ASHIFTRT (SImode, tmp0, GEN_INT (16))));
|
||
emit_move_insn (tmp10, (gen_rtx_ASHIFTRT (SImode, tmp1, GEN_INT (16))));
|
||
}
|
||
else
|
||
{
|
||
emit_move_insn (tmp9, (gen_rtx_LSHIFTRT (SImode, tmp0, GEN_INT (16))));
|
||
emit_move_insn (tmp10, (gen_rtx_LSHIFTRT (SImode, tmp1, GEN_INT (16))));
|
||
}
|
||
|
||
emit_move_insn (tmp11, (gen_rtx_PLUS (SImode, tmp3, tmp7)));
|
||
emit_move_insn (tmp12, (gen_rtx_PLUS (SImode, tmp8, tmp9)));
|
||
emit_move_insn (tmp13, (gen_rtx_PLUS (SImode, tmp11, tmp12)));
|
||
emit_move_insn (result, (gen_rtx_PLUS (SImode, tmp13, tmp10)));
|
||
}
|
||
|
||
|
||
/* Implement smulsi3_highpart. */
|
||
void
|
||
tilepro_expand_smulsi3_highpart (rtx op0, rtx op1, rtx op2)
|
||
{
|
||
tilepro_expand_high_multiply (op0, op1, op2, true);
|
||
}
|
||
|
||
|
||
/* Implement umulsi3_highpart. */
|
||
void
|
||
tilepro_expand_umulsi3_highpart (rtx op0, rtx op1, rtx op2)
|
||
{
|
||
tilepro_expand_high_multiply (op0, op1, op2, false);
|
||
}
|
||
|
||
|
||
|
||
/* Compare and branches */
|
||
|
||
/* Helper function to handle DImode for tilepro_emit_setcc_internal. */
|
||
static bool
|
||
tilepro_emit_setcc_internal_di (rtx res, enum rtx_code code, rtx op0, rtx op1)
|
||
{
|
||
rtx operands[2], lo_half[2], hi_half[2];
|
||
rtx tmp, tmp0, tmp1, tmp2;
|
||
bool swap = false;
|
||
|
||
/* Reduce the number of cases we need to handle by reversing the
|
||
operands. */
|
||
switch (code)
|
||
{
|
||
case EQ:
|
||
case NE:
|
||
case LE:
|
||
case LT:
|
||
case LEU:
|
||
case LTU:
|
||
/* We handle these compares directly. */
|
||
break;
|
||
|
||
case GE:
|
||
case GT:
|
||
case GEU:
|
||
case GTU:
|
||
/* Reverse the operands. */
|
||
swap = true;
|
||
break;
|
||
|
||
default:
|
||
/* We should not have called this with any other code. */
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
if (swap)
|
||
{
|
||
code = swap_condition (code);
|
||
tmp = op0, op0 = op1, op1 = tmp;
|
||
}
|
||
|
||
operands[0] = op0;
|
||
operands[1] = op1;
|
||
|
||
split_di (operands, 2, lo_half, hi_half);
|
||
|
||
if (!reg_or_0_operand (lo_half[0], SImode))
|
||
lo_half[0] = force_reg (SImode, lo_half[0]);
|
||
|
||
if (!reg_or_0_operand (hi_half[0], SImode))
|
||
hi_half[0] = force_reg (SImode, hi_half[0]);
|
||
|
||
if (!CONST_INT_P (lo_half[1]) && !register_operand (lo_half[1], SImode))
|
||
lo_half[1] = force_reg (SImode, lo_half[1]);
|
||
|
||
if (!CONST_INT_P (hi_half[1]) && !register_operand (hi_half[1], SImode))
|
||
hi_half[1] = force_reg (SImode, hi_half[1]);
|
||
|
||
tmp0 = gen_reg_rtx (SImode);
|
||
tmp1 = gen_reg_rtx (SImode);
|
||
tmp2 = gen_reg_rtx (SImode);
|
||
|
||
switch (code)
|
||
{
|
||
case EQ:
|
||
emit_insn (gen_insn_seq (tmp0, lo_half[0], lo_half[1]));
|
||
emit_insn (gen_insn_seq (tmp1, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_andsi3 (res, tmp0, tmp1));
|
||
return true;
|
||
break;
|
||
case NE:
|
||
emit_insn (gen_insn_sne (tmp0, lo_half[0], lo_half[1]));
|
||
emit_insn (gen_insn_sne (tmp1, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_iorsi3 (res, tmp0, tmp1));
|
||
return true;
|
||
break;
|
||
case LE:
|
||
emit_insn (gen_insn_slte (tmp0, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_seq (tmp1, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_slte_u (tmp2, lo_half[0], lo_half[1]));
|
||
emit_insn (gen_insn_mvnz (res, tmp0, tmp1, tmp2));
|
||
return true;
|
||
case LT:
|
||
if (operands[1] == const0_rtx)
|
||
{
|
||
emit_insn (gen_lshrsi3 (res, hi_half[0], GEN_INT (31)));
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
emit_insn (gen_insn_slt (tmp0, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_seq (tmp1, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_slt_u (tmp2, lo_half[0], lo_half[1]));
|
||
emit_insn (gen_insn_mvnz (res, tmp0, tmp1, tmp2));
|
||
}
|
||
return true;
|
||
case LEU:
|
||
emit_insn (gen_insn_slte_u (tmp0, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_seq (tmp1, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_slte_u (tmp2, lo_half[0], lo_half[1]));
|
||
emit_insn (gen_insn_mvnz (res, tmp0, tmp1, tmp2));
|
||
return true;
|
||
case LTU:
|
||
emit_insn (gen_insn_slt_u (tmp0, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_seq (tmp1, hi_half[0], hi_half[1]));
|
||
emit_insn (gen_insn_slt_u (tmp2, lo_half[0], lo_half[1]));
|
||
emit_insn (gen_insn_mvnz (res, tmp0, tmp1, tmp2));
|
||
return true;
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Certain simplifications can be done to make invalid setcc
|
||
operations valid. Return the final comparison, or NULL if we can't
|
||
work. */
|
||
static bool
|
||
tilepro_emit_setcc_internal (rtx res, enum rtx_code code, rtx op0, rtx op1,
|
||
enum machine_mode cmp_mode)
|
||
{
|
||
rtx tmp;
|
||
bool swap = false;
|
||
|
||
if (cmp_mode == DImode)
|
||
{
|
||
return tilepro_emit_setcc_internal_di (res, code, op0, op1);
|
||
}
|
||
|
||
/* The general case: fold the comparison code to the types of
|
||
compares that we have, choosing the branch as necessary. */
|
||
|
||
switch (code)
|
||
{
|
||
case EQ:
|
||
case NE:
|
||
case LE:
|
||
case LT:
|
||
case LEU:
|
||
case LTU:
|
||
/* We have these compares. */
|
||
break;
|
||
|
||
case GE:
|
||
case GT:
|
||
case GEU:
|
||
case GTU:
|
||
/* We do not have these compares, so we reverse the
|
||
operands. */
|
||
swap = true;
|
||
break;
|
||
|
||
default:
|
||
/* We should not have called this with any other code. */
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
if (swap)
|
||
{
|
||
code = swap_condition (code);
|
||
tmp = op0, op0 = op1, op1 = tmp;
|
||
}
|
||
|
||
if (!reg_or_0_operand (op0, SImode))
|
||
op0 = force_reg (SImode, op0);
|
||
|
||
if (!CONST_INT_P (op1) && !register_operand (op1, SImode))
|
||
op1 = force_reg (SImode, op1);
|
||
|
||
/* Return the setcc comparison. */
|
||
emit_insn (gen_rtx_SET (VOIDmode, res,
|
||
gen_rtx_fmt_ee (code, SImode, op0, op1)));
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
/* Implement cstore patterns. */
|
||
bool
|
||
tilepro_emit_setcc (rtx operands[], enum machine_mode cmp_mode)
|
||
{
|
||
return
|
||
tilepro_emit_setcc_internal (operands[0], GET_CODE (operands[1]),
|
||
operands[2], operands[3], cmp_mode);
|
||
}
|
||
|
||
|
||
/* Return whether CODE is a signed comparison. */
|
||
static bool
|
||
signed_compare_p (enum rtx_code code)
|
||
{
|
||
return (code == EQ || code == NE || code == LT || code == LE
|
||
|| code == GT || code == GE);
|
||
}
|
||
|
||
|
||
/* Generate the comparison for an SImode conditional branch. */
|
||
static rtx
|
||
tilepro_emit_cc_test (enum rtx_code code, rtx op0, rtx op1,
|
||
enum machine_mode cmp_mode, bool eq_ne_only)
|
||
{
|
||
enum rtx_code branch_code;
|
||
rtx temp;
|
||
|
||
/* Check for a compare against zero using a comparison we can do
|
||
directly. */
|
||
if (cmp_mode != DImode
|
||
&& op1 == const0_rtx
|
||
&& (code == EQ || code == NE
|
||
|| (!eq_ne_only && signed_compare_p (code))))
|
||
{
|
||
op0 = force_reg (SImode, op0);
|
||
return gen_rtx_fmt_ee (code, VOIDmode, op0, const0_rtx);
|
||
}
|
||
|
||
/* The general case: fold the comparison code to the types of
|
||
compares that we have, choosing the branch as necessary. */
|
||
switch (code)
|
||
{
|
||
case EQ:
|
||
case LE:
|
||
case LT:
|
||
case LEU:
|
||
case LTU:
|
||
/* We have these compares. */
|
||
branch_code = NE;
|
||
break;
|
||
|
||
case NE:
|
||
case GE:
|
||
case GT:
|
||
case GEU:
|
||
case GTU:
|
||
/* These must be reversed (except NE, but let's
|
||
canonicalize). */
|
||
code = reverse_condition (code);
|
||
branch_code = EQ;
|
||
break;
|
||
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
if (cmp_mode != DImode
|
||
&& CONST_INT_P (op1) && (!satisfies_constraint_I (op1) || code == LEU))
|
||
{
|
||
HOST_WIDE_INT n = trunc_int_for_mode (INTVAL (op1), SImode);
|
||
|
||
switch (code)
|
||
{
|
||
case EQ:
|
||
/* Subtract off the value we want to compare against and see
|
||
if we get zero. This is cheaper than creating a constant
|
||
in a register. Except that subtracting -128 is more
|
||
expensive than seqi to -128, so we leave that alone. */
|
||
/* ??? Don't do this when comparing against symbols,
|
||
otherwise we'll reduce (&x == 0x1234) to (&x-0x1234 ==
|
||
0), which will be declared false out of hand (at least
|
||
for non-weak). */
|
||
if (!(symbolic_operand (op0, VOIDmode)
|
||
|| (REG_P (op0) && REG_POINTER (op0))))
|
||
{
|
||
/* To compare against MIN_INT, we add MIN_INT and check
|
||
for 0. */
|
||
HOST_WIDE_INT add;
|
||
if (n != -2147483647 - 1)
|
||
add = -n;
|
||
else
|
||
add = n;
|
||
|
||
op0 = force_reg (SImode, op0);
|
||
temp = gen_reg_rtx (SImode);
|
||
emit_insn (gen_addsi3 (temp, op0, gen_int_si (add)));
|
||
return gen_rtx_fmt_ee (reverse_condition (branch_code),
|
||
VOIDmode, temp, const0_rtx);
|
||
}
|
||
break;
|
||
|
||
case LEU:
|
||
if (n == -1)
|
||
break;
|
||
/* FALLTHRU */
|
||
|
||
case LTU:
|
||
/* Change ((unsigned)x < 0x1000) into !((unsigned)x >> 12),
|
||
etc. */
|
||
{
|
||
int first = exact_log2 (code == LTU ? n : n + 1);
|
||
if (first != -1)
|
||
{
|
||
op0 = force_reg (SImode, op0);
|
||
temp = gen_reg_rtx (SImode);
|
||
emit_move_insn (temp,
|
||
gen_rtx_LSHIFTRT (SImode, op0,
|
||
gen_int_si (first)));
|
||
return gen_rtx_fmt_ee (reverse_condition (branch_code),
|
||
VOIDmode, temp, const0_rtx);
|
||
}
|
||
}
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Compute a flag saying whether we should branch. */
|
||
temp = gen_reg_rtx (SImode);
|
||
tilepro_emit_setcc_internal (temp, code, op0, op1, cmp_mode);
|
||
|
||
/* Return the branch comparison. */
|
||
return gen_rtx_fmt_ee (branch_code, VOIDmode, temp, const0_rtx);
|
||
}
|
||
|
||
|
||
/* Generate the comparison for a conditional branch. */
|
||
void
|
||
tilepro_emit_conditional_branch (rtx operands[], enum machine_mode cmp_mode)
|
||
{
|
||
rtx cmp_rtx =
|
||
tilepro_emit_cc_test (GET_CODE (operands[0]), operands[1], operands[2],
|
||
cmp_mode, false);
|
||
rtx branch_rtx = gen_rtx_SET (VOIDmode, pc_rtx,
|
||
gen_rtx_IF_THEN_ELSE (VOIDmode, cmp_rtx,
|
||
gen_rtx_LABEL_REF
|
||
(VOIDmode,
|
||
operands[3]),
|
||
pc_rtx));
|
||
emit_jump_insn (branch_rtx);
|
||
}
|
||
|
||
|
||
/* Implement the movsicc pattern. */
|
||
rtx
|
||
tilepro_emit_conditional_move (rtx cmp)
|
||
{
|
||
return
|
||
tilepro_emit_cc_test (GET_CODE (cmp), XEXP (cmp, 0), XEXP (cmp, 1),
|
||
GET_MODE (XEXP (cmp, 0)), true);
|
||
}
|
||
|
||
|
||
/* Return true if INSN is annotated with a REG_BR_PROB note that
|
||
indicates it's a branch that's predicted taken. */
|
||
static bool
|
||
cbranch_predicted_p (rtx insn)
|
||
{
|
||
rtx x = find_reg_note (insn, REG_BR_PROB, 0);
|
||
|
||
if (x)
|
||
{
|
||
int pred_val = XINT (x, 0);
|
||
|
||
return pred_val >= REG_BR_PROB_BASE / 2;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Output assembly code for a specific branch instruction, appending
|
||
the branch prediction flag to the opcode if appropriate. */
|
||
static const char *
|
||
tilepro_output_simple_cbranch_with_opcode (rtx insn, const char *opcode,
|
||
int regop, bool netreg_p,
|
||
bool reverse_predicted)
|
||
{
|
||
static char buf[64];
|
||
sprintf (buf, "%s%s\t%%%c%d, %%l0", opcode,
|
||
(cbranch_predicted_p (insn) ^ reverse_predicted) ? "t" : "",
|
||
netreg_p ? 'N' : 'r', regop);
|
||
return buf;
|
||
}
|
||
|
||
|
||
/* Output assembly code for a specific branch instruction, appending
|
||
the branch prediction flag to the opcode if appropriate. */
|
||
const char *
|
||
tilepro_output_cbranch_with_opcode (rtx insn, rtx *operands,
|
||
const char *opcode,
|
||
const char *rev_opcode,
|
||
int regop, bool netreg_p)
|
||
{
|
||
const char *branch_if_false;
|
||
rtx taken, not_taken;
|
||
bool is_simple_branch;
|
||
|
||
gcc_assert (LABEL_P (operands[0]));
|
||
|
||
is_simple_branch = true;
|
||
if (INSN_ADDRESSES_SET_P ())
|
||
{
|
||
int from_addr = INSN_ADDRESSES (INSN_UID (insn));
|
||
int to_addr = INSN_ADDRESSES (INSN_UID (operands[0]));
|
||
int delta = to_addr - from_addr;
|
||
is_simple_branch = IN_RANGE (delta, -524288, 524280);
|
||
}
|
||
|
||
if (is_simple_branch)
|
||
{
|
||
/* Just a simple conditional branch. */
|
||
return
|
||
tilepro_output_simple_cbranch_with_opcode (insn, opcode, regop,
|
||
netreg_p, false);
|
||
}
|
||
|
||
/* Generate a reversed branch around a direct jump. This fallback
|
||
does not use branch-likely instructions. */
|
||
not_taken = gen_label_rtx ();
|
||
taken = operands[0];
|
||
|
||
/* Generate the reversed branch to NOT_TAKEN. */
|
||
operands[0] = not_taken;
|
||
branch_if_false =
|
||
tilepro_output_simple_cbranch_with_opcode (insn, rev_opcode, regop,
|
||
netreg_p, true);
|
||
output_asm_insn (branch_if_false, operands);
|
||
|
||
output_asm_insn ("j\t%l0", &taken);
|
||
|
||
/* Output NOT_TAKEN. */
|
||
targetm.asm_out.internal_label (asm_out_file, "L",
|
||
CODE_LABEL_NUMBER (not_taken));
|
||
return "";
|
||
}
|
||
|
||
|
||
/* Output assembly code for a conditional branch instruction. */
|
||
const char *
|
||
tilepro_output_cbranch (rtx insn, rtx *operands, bool reversed)
|
||
{
|
||
enum rtx_code code = GET_CODE (operands[1]);
|
||
const char *opcode;
|
||
const char *rev_opcode;
|
||
|
||
if (reversed)
|
||
code = reverse_condition (code);
|
||
|
||
switch (code)
|
||
{
|
||
case NE:
|
||
opcode = "bnz";
|
||
rev_opcode = "bz";
|
||
break;
|
||
case EQ:
|
||
opcode = "bz";
|
||
rev_opcode = "bnz";
|
||
break;
|
||
case GE:
|
||
opcode = "bgez";
|
||
rev_opcode = "blz";
|
||
break;
|
||
case GT:
|
||
opcode = "bgz";
|
||
rev_opcode = "blez";
|
||
break;
|
||
case LE:
|
||
opcode = "blez";
|
||
rev_opcode = "bgz";
|
||
break;
|
||
case LT:
|
||
opcode = "blz";
|
||
rev_opcode = "bgez";
|
||
break;
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
return
|
||
tilepro_output_cbranch_with_opcode (insn, operands, opcode, rev_opcode,
|
||
2, false);
|
||
}
|
||
|
||
|
||
/* Implement the tablejump pattern. */
|
||
void
|
||
tilepro_expand_tablejump (rtx op0, rtx op1)
|
||
{
|
||
if (flag_pic)
|
||
{
|
||
rtx table = gen_rtx_LABEL_REF (Pmode, op1);
|
||
rtx temp = gen_reg_rtx (Pmode);
|
||
rtx text_label_symbol = tilepro_text_label_symbol ();
|
||
rtx text_label_rtx = tilepro_text_label_rtx ();
|
||
|
||
emit_insn (gen_addli_pcrel (temp, text_label_rtx,
|
||
table, text_label_symbol));
|
||
emit_insn (gen_auli_pcrel (temp, temp, table, text_label_symbol));
|
||
emit_move_insn (temp,
|
||
gen_rtx_PLUS (Pmode,
|
||
convert_to_mode (Pmode, op0, false),
|
||
temp));
|
||
op0 = temp;
|
||
}
|
||
|
||
emit_jump_insn (gen_tablejump_aux (op0, op1));
|
||
}
|
||
|
||
|
||
/* Expand a builtin vector binary op, by calling gen function GEN with
|
||
operands in the proper modes. DEST is converted to DEST_MODE, and
|
||
src0 and src1 (if DO_SRC1 is true) is converted to SRC_MODE. */
|
||
void
|
||
tilepro_expand_builtin_vector_binop (rtx (*gen) (rtx, rtx, rtx),
|
||
enum machine_mode dest_mode,
|
||
rtx dest,
|
||
enum machine_mode src_mode,
|
||
rtx src0, rtx src1, bool do_src1)
|
||
{
|
||
dest = gen_lowpart (dest_mode, dest);
|
||
|
||
if (src0 == const0_rtx)
|
||
src0 = CONST0_RTX (src_mode);
|
||
else
|
||
src0 = gen_lowpart (src_mode, src0);
|
||
|
||
if (do_src1)
|
||
{
|
||
if (src1 == const0_rtx)
|
||
src1 = CONST0_RTX (src_mode);
|
||
else
|
||
src1 = gen_lowpart (src_mode, src1);
|
||
}
|
||
|
||
emit_insn ((*gen) (dest, src0, src1));
|
||
}
|
||
|
||
|
||
|
||
/* Intrinsics */
|
||
|
||
struct tile_builtin_info
|
||
{
|
||
enum insn_code icode;
|
||
tree fndecl;
|
||
};
|
||
|
||
static struct tile_builtin_info tilepro_builtin_info[TILEPRO_BUILTIN_max] = {
|
||
{ CODE_FOR_addsi3, NULL }, /* add */
|
||
{ CODE_FOR_insn_addb, NULL }, /* addb */
|
||
{ CODE_FOR_insn_addbs_u, NULL }, /* addbs_u */
|
||
{ CODE_FOR_insn_addh, NULL }, /* addh */
|
||
{ CODE_FOR_insn_addhs, NULL }, /* addhs */
|
||
{ CODE_FOR_insn_addib, NULL }, /* addib */
|
||
{ CODE_FOR_insn_addih, NULL }, /* addih */
|
||
{ CODE_FOR_insn_addlis, NULL }, /* addlis */
|
||
{ CODE_FOR_ssaddsi3, NULL }, /* adds */
|
||
{ CODE_FOR_insn_adiffb_u, NULL }, /* adiffb_u */
|
||
{ CODE_FOR_insn_adiffh, NULL }, /* adiffh */
|
||
{ CODE_FOR_andsi3, NULL }, /* and */
|
||
{ CODE_FOR_insn_auli, NULL }, /* auli */
|
||
{ CODE_FOR_insn_avgb_u, NULL }, /* avgb_u */
|
||
{ CODE_FOR_insn_avgh, NULL }, /* avgh */
|
||
{ CODE_FOR_insn_bitx, NULL }, /* bitx */
|
||
{ CODE_FOR_bswapsi2, NULL }, /* bytex */
|
||
{ CODE_FOR_clzsi2, NULL }, /* clz */
|
||
{ CODE_FOR_insn_crc32_32, NULL }, /* crc32_32 */
|
||
{ CODE_FOR_insn_crc32_8, NULL }, /* crc32_8 */
|
||
{ CODE_FOR_ctzsi2, NULL }, /* ctz */
|
||
{ CODE_FOR_insn_drain, NULL }, /* drain */
|
||
{ CODE_FOR_insn_dtlbpr, NULL }, /* dtlbpr */
|
||
{ CODE_FOR_insn_dword_align, NULL }, /* dword_align */
|
||
{ CODE_FOR_insn_finv, NULL }, /* finv */
|
||
{ CODE_FOR_insn_flush, NULL }, /* flush */
|
||
{ CODE_FOR_insn_fnop, NULL }, /* fnop */
|
||
{ CODE_FOR_insn_icoh, NULL }, /* icoh */
|
||
{ CODE_FOR_insn_ill, NULL }, /* ill */
|
||
{ CODE_FOR_insn_info, NULL }, /* info */
|
||
{ CODE_FOR_insn_infol, NULL }, /* infol */
|
||
{ CODE_FOR_insn_inthb, NULL }, /* inthb */
|
||
{ CODE_FOR_insn_inthh, NULL }, /* inthh */
|
||
{ CODE_FOR_insn_intlb, NULL }, /* intlb */
|
||
{ CODE_FOR_insn_intlh, NULL }, /* intlh */
|
||
{ CODE_FOR_insn_inv, NULL }, /* inv */
|
||
{ CODE_FOR_insn_lb, NULL }, /* lb */
|
||
{ CODE_FOR_insn_lb_u, NULL }, /* lb_u */
|
||
{ CODE_FOR_insn_lh, NULL }, /* lh */
|
||
{ CODE_FOR_insn_lh_u, NULL }, /* lh_u */
|
||
{ CODE_FOR_insn_lnk, NULL }, /* lnk */
|
||
{ CODE_FOR_insn_lw, NULL }, /* lw */
|
||
{ CODE_FOR_insn_lw_na, NULL }, /* lw_na */
|
||
{ CODE_FOR_insn_lb_L2, NULL }, /* lb_L2 */
|
||
{ CODE_FOR_insn_lb_u_L2, NULL }, /* lb_u_L2 */
|
||
{ CODE_FOR_insn_lh_L2, NULL }, /* lh_L2 */
|
||
{ CODE_FOR_insn_lh_u_L2, NULL }, /* lh_u_L2 */
|
||
{ CODE_FOR_insn_lw_L2, NULL }, /* lw_L2 */
|
||
{ CODE_FOR_insn_lw_na_L2, NULL }, /* lw_na_L2 */
|
||
{ CODE_FOR_insn_lb_miss, NULL }, /* lb_miss */
|
||
{ CODE_FOR_insn_lb_u_miss, NULL }, /* lb_u_miss */
|
||
{ CODE_FOR_insn_lh_miss, NULL }, /* lh_miss */
|
||
{ CODE_FOR_insn_lh_u_miss, NULL }, /* lh_u_miss */
|
||
{ CODE_FOR_insn_lw_miss, NULL }, /* lw_miss */
|
||
{ CODE_FOR_insn_lw_na_miss, NULL }, /* lw_na_miss */
|
||
{ CODE_FOR_insn_maxb_u, NULL }, /* maxb_u */
|
||
{ CODE_FOR_insn_maxh, NULL }, /* maxh */
|
||
{ CODE_FOR_insn_maxib_u, NULL }, /* maxib_u */
|
||
{ CODE_FOR_insn_maxih, NULL }, /* maxih */
|
||
{ CODE_FOR_memory_barrier, NULL }, /* mf */
|
||
{ CODE_FOR_insn_mfspr, NULL }, /* mfspr */
|
||
{ CODE_FOR_insn_minb_u, NULL }, /* minb_u */
|
||
{ CODE_FOR_insn_minh, NULL }, /* minh */
|
||
{ CODE_FOR_insn_minib_u, NULL }, /* minib_u */
|
||
{ CODE_FOR_insn_minih, NULL }, /* minih */
|
||
{ CODE_FOR_insn_mm, NULL }, /* mm */
|
||
{ CODE_FOR_insn_mnz, NULL }, /* mnz */
|
||
{ CODE_FOR_insn_mnzb, NULL }, /* mnzb */
|
||
{ CODE_FOR_insn_mnzh, NULL }, /* mnzh */
|
||
{ CODE_FOR_movsi, NULL }, /* move */
|
||
{ CODE_FOR_insn_movelis, NULL }, /* movelis */
|
||
{ CODE_FOR_insn_mtspr, NULL }, /* mtspr */
|
||
{ CODE_FOR_insn_mulhh_ss, NULL }, /* mulhh_ss */
|
||
{ CODE_FOR_insn_mulhh_su, NULL }, /* mulhh_su */
|
||
{ CODE_FOR_insn_mulhh_uu, NULL }, /* mulhh_uu */
|
||
{ CODE_FOR_insn_mulhha_ss, NULL }, /* mulhha_ss */
|
||
{ CODE_FOR_insn_mulhha_su, NULL }, /* mulhha_su */
|
||
{ CODE_FOR_insn_mulhha_uu, NULL }, /* mulhha_uu */
|
||
{ CODE_FOR_insn_mulhhsa_uu, NULL }, /* mulhhsa_uu */
|
||
{ CODE_FOR_insn_mulhl_ss, NULL }, /* mulhl_ss */
|
||
{ CODE_FOR_insn_mulhl_su, NULL }, /* mulhl_su */
|
||
{ CODE_FOR_insn_mulhl_us, NULL }, /* mulhl_us */
|
||
{ CODE_FOR_insn_mulhl_uu, NULL }, /* mulhl_uu */
|
||
{ CODE_FOR_insn_mulhla_ss, NULL }, /* mulhla_ss */
|
||
{ CODE_FOR_insn_mulhla_su, NULL }, /* mulhla_su */
|
||
{ CODE_FOR_insn_mulhla_us, NULL }, /* mulhla_us */
|
||
{ CODE_FOR_insn_mulhla_uu, NULL }, /* mulhla_uu */
|
||
{ CODE_FOR_insn_mulhlsa_uu, NULL }, /* mulhlsa_uu */
|
||
{ CODE_FOR_insn_mulll_ss, NULL }, /* mulll_ss */
|
||
{ CODE_FOR_insn_mulll_su, NULL }, /* mulll_su */
|
||
{ CODE_FOR_insn_mulll_uu, NULL }, /* mulll_uu */
|
||
{ CODE_FOR_insn_mullla_ss, NULL }, /* mullla_ss */
|
||
{ CODE_FOR_insn_mullla_su, NULL }, /* mullla_su */
|
||
{ CODE_FOR_insn_mullla_uu, NULL }, /* mullla_uu */
|
||
{ CODE_FOR_insn_mulllsa_uu, NULL }, /* mulllsa_uu */
|
||
{ CODE_FOR_insn_mvnz, NULL }, /* mvnz */
|
||
{ CODE_FOR_insn_mvz, NULL }, /* mvz */
|
||
{ CODE_FOR_insn_mz, NULL }, /* mz */
|
||
{ CODE_FOR_insn_mzb, NULL }, /* mzb */
|
||
{ CODE_FOR_insn_mzh, NULL }, /* mzh */
|
||
{ CODE_FOR_insn_nap, NULL }, /* nap */
|
||
{ CODE_FOR_nop, NULL }, /* nop */
|
||
{ CODE_FOR_insn_nor, NULL }, /* nor */
|
||
{ CODE_FOR_iorsi3, NULL }, /* or */
|
||
{ CODE_FOR_insn_packbs_u, NULL }, /* packbs_u */
|
||
{ CODE_FOR_insn_packhb, NULL }, /* packhb */
|
||
{ CODE_FOR_insn_packhs, NULL }, /* packhs */
|
||
{ CODE_FOR_insn_packlb, NULL }, /* packlb */
|
||
{ CODE_FOR_popcountsi2, NULL }, /* pcnt */
|
||
{ CODE_FOR_insn_prefetch, NULL }, /* prefetch */
|
||
{ CODE_FOR_insn_prefetch_L1, NULL }, /* prefetch_L1 */
|
||
{ CODE_FOR_rotlsi3, NULL }, /* rl */
|
||
{ CODE_FOR_insn_s1a, NULL }, /* s1a */
|
||
{ CODE_FOR_insn_s2a, NULL }, /* s2a */
|
||
{ CODE_FOR_insn_s3a, NULL }, /* s3a */
|
||
{ CODE_FOR_insn_sadab_u, NULL }, /* sadab_u */
|
||
{ CODE_FOR_insn_sadah, NULL }, /* sadah */
|
||
{ CODE_FOR_insn_sadah_u, NULL }, /* sadah_u */
|
||
{ CODE_FOR_insn_sadb_u, NULL }, /* sadb_u */
|
||
{ CODE_FOR_insn_sadh, NULL }, /* sadh */
|
||
{ CODE_FOR_insn_sadh_u, NULL }, /* sadh_u */
|
||
{ CODE_FOR_insn_sb, NULL }, /* sb */
|
||
{ CODE_FOR_insn_seq, NULL }, /* seq */
|
||
{ CODE_FOR_insn_seqb, NULL }, /* seqb */
|
||
{ CODE_FOR_insn_seqh, NULL }, /* seqh */
|
||
{ CODE_FOR_insn_seqib, NULL }, /* seqib */
|
||
{ CODE_FOR_insn_seqih, NULL }, /* seqih */
|
||
{ CODE_FOR_insn_sh, NULL }, /* sh */
|
||
{ CODE_FOR_ashlsi3, NULL }, /* shl */
|
||
{ CODE_FOR_insn_shlb, NULL }, /* shlb */
|
||
{ CODE_FOR_insn_shlh, NULL }, /* shlh */
|
||
{ CODE_FOR_insn_shlb, NULL }, /* shlib */
|
||
{ CODE_FOR_insn_shlh, NULL }, /* shlih */
|
||
{ CODE_FOR_lshrsi3, NULL }, /* shr */
|
||
{ CODE_FOR_insn_shrb, NULL }, /* shrb */
|
||
{ CODE_FOR_insn_shrh, NULL }, /* shrh */
|
||
{ CODE_FOR_insn_shrb, NULL }, /* shrib */
|
||
{ CODE_FOR_insn_shrh, NULL }, /* shrih */
|
||
{ CODE_FOR_insn_slt, NULL }, /* slt */
|
||
{ CODE_FOR_insn_slt_u, NULL }, /* slt_u */
|
||
{ CODE_FOR_insn_sltb, NULL }, /* sltb */
|
||
{ CODE_FOR_insn_sltb_u, NULL }, /* sltb_u */
|
||
{ CODE_FOR_insn_slte, NULL }, /* slte */
|
||
{ CODE_FOR_insn_slte_u, NULL }, /* slte_u */
|
||
{ CODE_FOR_insn_slteb, NULL }, /* slteb */
|
||
{ CODE_FOR_insn_slteb_u, NULL }, /* slteb_u */
|
||
{ CODE_FOR_insn_slteh, NULL }, /* slteh */
|
||
{ CODE_FOR_insn_slteh_u, NULL }, /* slteh_u */
|
||
{ CODE_FOR_insn_slth, NULL }, /* slth */
|
||
{ CODE_FOR_insn_slth_u, NULL }, /* slth_u */
|
||
{ CODE_FOR_insn_sltib, NULL }, /* sltib */
|
||
{ CODE_FOR_insn_sltib_u, NULL }, /* sltib_u */
|
||
{ CODE_FOR_insn_sltih, NULL }, /* sltih */
|
||
{ CODE_FOR_insn_sltih_u, NULL }, /* sltih_u */
|
||
{ CODE_FOR_insn_sne, NULL }, /* sne */
|
||
{ CODE_FOR_insn_sneb, NULL }, /* sneb */
|
||
{ CODE_FOR_insn_sneh, NULL }, /* sneh */
|
||
{ CODE_FOR_ashrsi3, NULL }, /* sra */
|
||
{ CODE_FOR_insn_srab, NULL }, /* srab */
|
||
{ CODE_FOR_insn_srah, NULL }, /* srah */
|
||
{ CODE_FOR_insn_srab, NULL }, /* sraib */
|
||
{ CODE_FOR_insn_srah, NULL }, /* sraih */
|
||
{ CODE_FOR_subsi3, NULL }, /* sub */
|
||
{ CODE_FOR_insn_subb, NULL }, /* subb */
|
||
{ CODE_FOR_insn_subbs_u, NULL }, /* subbs_u */
|
||
{ CODE_FOR_insn_subh, NULL }, /* subh */
|
||
{ CODE_FOR_insn_subhs, NULL }, /* subhs */
|
||
{ CODE_FOR_sssubsi3, NULL }, /* subs */
|
||
{ CODE_FOR_insn_sw, NULL }, /* sw */
|
||
{ CODE_FOR_insn_tblidxb0, NULL }, /* tblidxb0 */
|
||
{ CODE_FOR_insn_tblidxb1, NULL }, /* tblidxb1 */
|
||
{ CODE_FOR_insn_tblidxb2, NULL }, /* tblidxb2 */
|
||
{ CODE_FOR_insn_tblidxb3, NULL }, /* tblidxb3 */
|
||
{ CODE_FOR_insn_tns, NULL }, /* tns */
|
||
{ CODE_FOR_insn_wh64, NULL }, /* wh64 */
|
||
{ CODE_FOR_xorsi3, NULL }, /* xor */
|
||
{ CODE_FOR_tilepro_network_barrier, NULL }, /* network_barrier */
|
||
{ CODE_FOR_tilepro_idn0_receive, NULL }, /* idn0_receive */
|
||
{ CODE_FOR_tilepro_idn1_receive, NULL }, /* idn1_receive */
|
||
{ CODE_FOR_tilepro_idn_send, NULL }, /* idn_send */
|
||
{ CODE_FOR_tilepro_sn_receive, NULL }, /* sn_receive */
|
||
{ CODE_FOR_tilepro_sn_send, NULL }, /* sn_send */
|
||
{ CODE_FOR_tilepro_udn0_receive, NULL }, /* udn0_receive */
|
||
{ CODE_FOR_tilepro_udn1_receive, NULL }, /* udn1_receive */
|
||
{ CODE_FOR_tilepro_udn2_receive, NULL }, /* udn2_receive */
|
||
{ CODE_FOR_tilepro_udn3_receive, NULL }, /* udn3_receive */
|
||
{ CODE_FOR_tilepro_udn_send, NULL }, /* udn_send */
|
||
};
|
||
|
||
|
||
struct tilepro_builtin_def
|
||
{
|
||
const char *name;
|
||
enum tilepro_builtin code;
|
||
bool is_const;
|
||
/* The first character is the return type. Subsequent characters
|
||
are the argument types. See char_to_type. */
|
||
const char *type;
|
||
};
|
||
|
||
|
||
static const struct tilepro_builtin_def tilepro_builtins[] = {
|
||
{ "__insn_add", TILEPRO_INSN_ADD, true, "lll" },
|
||
{ "__insn_addb", TILEPRO_INSN_ADDB, true, "lll" },
|
||
{ "__insn_addbs_u", TILEPRO_INSN_ADDBS_U, false, "lll" },
|
||
{ "__insn_addh", TILEPRO_INSN_ADDH, true, "lll" },
|
||
{ "__insn_addhs", TILEPRO_INSN_ADDHS, false, "lll" },
|
||
{ "__insn_addi", TILEPRO_INSN_ADD, true, "lll" },
|
||
{ "__insn_addib", TILEPRO_INSN_ADDIB, true, "lll" },
|
||
{ "__insn_addih", TILEPRO_INSN_ADDIH, true, "lll" },
|
||
{ "__insn_addli", TILEPRO_INSN_ADD, true, "lll" },
|
||
{ "__insn_addlis", TILEPRO_INSN_ADDLIS, false, "lll" },
|
||
{ "__insn_adds", TILEPRO_INSN_ADDS, false, "lll" },
|
||
{ "__insn_adiffb_u", TILEPRO_INSN_ADIFFB_U, true, "lll" },
|
||
{ "__insn_adiffh", TILEPRO_INSN_ADIFFH, true, "lll" },
|
||
{ "__insn_and", TILEPRO_INSN_AND, true, "lll" },
|
||
{ "__insn_andi", TILEPRO_INSN_AND, true, "lll" },
|
||
{ "__insn_auli", TILEPRO_INSN_AULI, true, "lll" },
|
||
{ "__insn_avgb_u", TILEPRO_INSN_AVGB_U, true, "lll" },
|
||
{ "__insn_avgh", TILEPRO_INSN_AVGH, true, "lll" },
|
||
{ "__insn_bitx", TILEPRO_INSN_BITX, true, "ll" },
|
||
{ "__insn_bytex", TILEPRO_INSN_BYTEX, true, "ll" },
|
||
{ "__insn_clz", TILEPRO_INSN_CLZ, true, "ll" },
|
||
{ "__insn_crc32_32", TILEPRO_INSN_CRC32_32, true, "lll" },
|
||
{ "__insn_crc32_8", TILEPRO_INSN_CRC32_8, true, "lll" },
|
||
{ "__insn_ctz", TILEPRO_INSN_CTZ, true, "ll" },
|
||
{ "__insn_drain", TILEPRO_INSN_DRAIN, false, "v" },
|
||
{ "__insn_dtlbpr", TILEPRO_INSN_DTLBPR, false, "vl" },
|
||
{ "__insn_dword_align", TILEPRO_INSN_DWORD_ALIGN, true, "lllk" },
|
||
{ "__insn_finv", TILEPRO_INSN_FINV, false, "vk" },
|
||
{ "__insn_flush", TILEPRO_INSN_FLUSH, false, "vk" },
|
||
{ "__insn_fnop", TILEPRO_INSN_FNOP, false, "v" },
|
||
{ "__insn_icoh", TILEPRO_INSN_ICOH, false, "vk" },
|
||
{ "__insn_ill", TILEPRO_INSN_ILL, false, "v" },
|
||
{ "__insn_info", TILEPRO_INSN_INFO, false, "vl" },
|
||
{ "__insn_infol", TILEPRO_INSN_INFOL, false, "vl" },
|
||
{ "__insn_inthb", TILEPRO_INSN_INTHB, true, "lll" },
|
||
{ "__insn_inthh", TILEPRO_INSN_INTHH, true, "lll" },
|
||
{ "__insn_intlb", TILEPRO_INSN_INTLB, true, "lll" },
|
||
{ "__insn_intlh", TILEPRO_INSN_INTLH, true, "lll" },
|
||
{ "__insn_inv", TILEPRO_INSN_INV, false, "vp" },
|
||
{ "__insn_lb", TILEPRO_INSN_LB, false, "lk" },
|
||
{ "__insn_lb_u", TILEPRO_INSN_LB_U, false, "lk" },
|
||
{ "__insn_lh", TILEPRO_INSN_LH, false, "lk" },
|
||
{ "__insn_lh_u", TILEPRO_INSN_LH_U, false, "lk" },
|
||
{ "__insn_lnk", TILEPRO_INSN_LNK, true, "l" },
|
||
{ "__insn_lw", TILEPRO_INSN_LW, false, "lk" },
|
||
{ "__insn_lw_na", TILEPRO_INSN_LW_NA, false, "lk" },
|
||
{ "__insn_lb_L2", TILEPRO_INSN_LB_L2, false, "lk" },
|
||
{ "__insn_lb_u_L2", TILEPRO_INSN_LB_U_L2, false, "lk" },
|
||
{ "__insn_lh_L2", TILEPRO_INSN_LH_L2, false, "lk" },
|
||
{ "__insn_lh_u_L2", TILEPRO_INSN_LH_U_L2, false, "lk" },
|
||
{ "__insn_lw_L2", TILEPRO_INSN_LW_L2, false, "lk" },
|
||
{ "__insn_lw_na_L2", TILEPRO_INSN_LW_NA_L2, false, "lk" },
|
||
{ "__insn_lb_miss", TILEPRO_INSN_LB_MISS, false, "lk" },
|
||
{ "__insn_lb_u_miss", TILEPRO_INSN_LB_U_MISS, false, "lk" },
|
||
{ "__insn_lh_miss", TILEPRO_INSN_LH_MISS, false, "lk" },
|
||
{ "__insn_lh_u_miss", TILEPRO_INSN_LH_U_MISS, false, "lk" },
|
||
{ "__insn_lw_miss", TILEPRO_INSN_LW_MISS, false, "lk" },
|
||
{ "__insn_lw_na_miss", TILEPRO_INSN_LW_NA_MISS, false, "lk" },
|
||
{ "__insn_maxb_u", TILEPRO_INSN_MAXB_U, true, "lll" },
|
||
{ "__insn_maxh", TILEPRO_INSN_MAXH, true, "lll" },
|
||
{ "__insn_maxib_u", TILEPRO_INSN_MAXIB_U, true, "lll" },
|
||
{ "__insn_maxih", TILEPRO_INSN_MAXIH, true, "lll" },
|
||
{ "__insn_mf", TILEPRO_INSN_MF, false, "v" },
|
||
{ "__insn_mfspr", TILEPRO_INSN_MFSPR, false, "ll" },
|
||
{ "__insn_minb_u", TILEPRO_INSN_MINB_U, true, "lll" },
|
||
{ "__insn_minh", TILEPRO_INSN_MINH, true, "lll" },
|
||
{ "__insn_minib_u", TILEPRO_INSN_MINIB_U, true, "lll" },
|
||
{ "__insn_minih", TILEPRO_INSN_MINIH, true, "lll" },
|
||
{ "__insn_mm", TILEPRO_INSN_MM, true, "lllll" },
|
||
{ "__insn_mnz", TILEPRO_INSN_MNZ, true, "lll" },
|
||
{ "__insn_mnzb", TILEPRO_INSN_MNZB, true, "lll" },
|
||
{ "__insn_mnzh", TILEPRO_INSN_MNZH, true, "lll" },
|
||
{ "__insn_move", TILEPRO_INSN_MOVE, true, "ll" },
|
||
{ "__insn_movei", TILEPRO_INSN_MOVE, true, "ll" },
|
||
{ "__insn_moveli", TILEPRO_INSN_MOVE, true, "ll" },
|
||
{ "__insn_movelis", TILEPRO_INSN_MOVELIS, false, "ll" },
|
||
{ "__insn_mtspr", TILEPRO_INSN_MTSPR, false, "vll" },
|
||
{ "__insn_mulhh_ss", TILEPRO_INSN_MULHH_SS, true, "lll" },
|
||
{ "__insn_mulhh_su", TILEPRO_INSN_MULHH_SU, true, "lll" },
|
||
{ "__insn_mulhh_uu", TILEPRO_INSN_MULHH_UU, true, "lll" },
|
||
{ "__insn_mulhha_ss", TILEPRO_INSN_MULHHA_SS, true, "llll" },
|
||
{ "__insn_mulhha_su", TILEPRO_INSN_MULHHA_SU, true, "llll" },
|
||
{ "__insn_mulhha_uu", TILEPRO_INSN_MULHHA_UU, true, "llll" },
|
||
{ "__insn_mulhhsa_uu", TILEPRO_INSN_MULHHSA_UU, true, "llll" },
|
||
{ "__insn_mulhl_ss", TILEPRO_INSN_MULHL_SS, true, "lll" },
|
||
{ "__insn_mulhl_su", TILEPRO_INSN_MULHL_SU, true, "lll" },
|
||
{ "__insn_mulhl_us", TILEPRO_INSN_MULHL_US, true, "lll" },
|
||
{ "__insn_mulhl_uu", TILEPRO_INSN_MULHL_UU, true, "lll" },
|
||
{ "__insn_mulhla_ss", TILEPRO_INSN_MULHLA_SS, true, "llll" },
|
||
{ "__insn_mulhla_su", TILEPRO_INSN_MULHLA_SU, true, "llll" },
|
||
{ "__insn_mulhla_us", TILEPRO_INSN_MULHLA_US, true, "llll" },
|
||
{ "__insn_mulhla_uu", TILEPRO_INSN_MULHLA_UU, true, "llll" },
|
||
{ "__insn_mulhlsa_uu", TILEPRO_INSN_MULHLSA_UU, true, "llll" },
|
||
{ "__insn_mulll_ss", TILEPRO_INSN_MULLL_SS, true, "lll" },
|
||
{ "__insn_mulll_su", TILEPRO_INSN_MULLL_SU, true, "lll" },
|
||
{ "__insn_mulll_uu", TILEPRO_INSN_MULLL_UU, true, "lll" },
|
||
{ "__insn_mullla_ss", TILEPRO_INSN_MULLLA_SS, true, "llll" },
|
||
{ "__insn_mullla_su", TILEPRO_INSN_MULLLA_SU, true, "llll" },
|
||
{ "__insn_mullla_uu", TILEPRO_INSN_MULLLA_UU, true, "llll" },
|
||
{ "__insn_mulllsa_uu", TILEPRO_INSN_MULLLSA_UU, true, "llll" },
|
||
{ "__insn_mvnz", TILEPRO_INSN_MVNZ, true, "llll" },
|
||
{ "__insn_mvz", TILEPRO_INSN_MVZ, true, "llll" },
|
||
{ "__insn_mz", TILEPRO_INSN_MZ, true, "lll" },
|
||
{ "__insn_mzb", TILEPRO_INSN_MZB, true, "lll" },
|
||
{ "__insn_mzh", TILEPRO_INSN_MZH, true, "lll" },
|
||
{ "__insn_nap", TILEPRO_INSN_NAP, false, "v" },
|
||
{ "__insn_nop", TILEPRO_INSN_NOP, true, "v" },
|
||
{ "__insn_nor", TILEPRO_INSN_NOR, true, "lll" },
|
||
{ "__insn_or", TILEPRO_INSN_OR, true, "lll" },
|
||
{ "__insn_ori", TILEPRO_INSN_OR, true, "lll" },
|
||
{ "__insn_packbs_u", TILEPRO_INSN_PACKBS_U, false, "lll" },
|
||
{ "__insn_packhb", TILEPRO_INSN_PACKHB, true, "lll" },
|
||
{ "__insn_packhs", TILEPRO_INSN_PACKHS, false, "lll" },
|
||
{ "__insn_packlb", TILEPRO_INSN_PACKLB, true, "lll" },
|
||
{ "__insn_pcnt", TILEPRO_INSN_PCNT, true, "ll" },
|
||
{ "__insn_prefetch", TILEPRO_INSN_PREFETCH, false, "vk" },
|
||
{ "__insn_prefetch_L1", TILEPRO_INSN_PREFETCH_L1, false, "vk" },
|
||
{ "__insn_rl", TILEPRO_INSN_RL, true, "lll" },
|
||
{ "__insn_rli", TILEPRO_INSN_RL, true, "lll" },
|
||
{ "__insn_s1a", TILEPRO_INSN_S1A, true, "lll" },
|
||
{ "__insn_s2a", TILEPRO_INSN_S2A, true, "lll" },
|
||
{ "__insn_s3a", TILEPRO_INSN_S3A, true, "lll" },
|
||
{ "__insn_sadab_u", TILEPRO_INSN_SADAB_U, true, "llll" },
|
||
{ "__insn_sadah", TILEPRO_INSN_SADAH, true, "llll" },
|
||
{ "__insn_sadah_u", TILEPRO_INSN_SADAH_U, true, "llll" },
|
||
{ "__insn_sadb_u", TILEPRO_INSN_SADB_U, true, "lll" },
|
||
{ "__insn_sadh", TILEPRO_INSN_SADH, true, "lll" },
|
||
{ "__insn_sadh_u", TILEPRO_INSN_SADH_U, true, "lll" },
|
||
{ "__insn_sb", TILEPRO_INSN_SB, false, "vpl" },
|
||
{ "__insn_seq", TILEPRO_INSN_SEQ, true, "lll" },
|
||
{ "__insn_seqb", TILEPRO_INSN_SEQB, true, "lll" },
|
||
{ "__insn_seqh", TILEPRO_INSN_SEQH, true, "lll" },
|
||
{ "__insn_seqi", TILEPRO_INSN_SEQ, true, "lll" },
|
||
{ "__insn_seqib", TILEPRO_INSN_SEQIB, true, "lll" },
|
||
{ "__insn_seqih", TILEPRO_INSN_SEQIH, true, "lll" },
|
||
{ "__insn_sh", TILEPRO_INSN_SH, false, "vpl" },
|
||
{ "__insn_shl", TILEPRO_INSN_SHL, true, "lll" },
|
||
{ "__insn_shlb", TILEPRO_INSN_SHLB, true, "lll" },
|
||
{ "__insn_shlh", TILEPRO_INSN_SHLH, true, "lll" },
|
||
{ "__insn_shli", TILEPRO_INSN_SHL, true, "lll" },
|
||
{ "__insn_shlib", TILEPRO_INSN_SHLIB, true, "lll" },
|
||
{ "__insn_shlih", TILEPRO_INSN_SHLIH, true, "lll" },
|
||
{ "__insn_shr", TILEPRO_INSN_SHR, true, "lll" },
|
||
{ "__insn_shrb", TILEPRO_INSN_SHRB, true, "lll" },
|
||
{ "__insn_shrh", TILEPRO_INSN_SHRH, true, "lll" },
|
||
{ "__insn_shri", TILEPRO_INSN_SHR, true, "lll" },
|
||
{ "__insn_shrib", TILEPRO_INSN_SHRIB, true, "lll" },
|
||
{ "__insn_shrih", TILEPRO_INSN_SHRIH, true, "lll" },
|
||
{ "__insn_slt", TILEPRO_INSN_SLT, true, "lll" },
|
||
{ "__insn_slt_u", TILEPRO_INSN_SLT_U, true, "lll" },
|
||
{ "__insn_sltb", TILEPRO_INSN_SLTB, true, "lll" },
|
||
{ "__insn_sltb_u", TILEPRO_INSN_SLTB_U, true, "lll" },
|
||
{ "__insn_slte", TILEPRO_INSN_SLTE, true, "lll" },
|
||
{ "__insn_slte_u", TILEPRO_INSN_SLTE_U, true, "lll" },
|
||
{ "__insn_slteb", TILEPRO_INSN_SLTEB, true, "lll" },
|
||
{ "__insn_slteb_u", TILEPRO_INSN_SLTEB_U, true, "lll" },
|
||
{ "__insn_slteh", TILEPRO_INSN_SLTEH, true, "lll" },
|
||
{ "__insn_slteh_u", TILEPRO_INSN_SLTEH_U, true, "lll" },
|
||
{ "__insn_slth", TILEPRO_INSN_SLTH, true, "lll" },
|
||
{ "__insn_slth_u", TILEPRO_INSN_SLTH_U, true, "lll" },
|
||
{ "__insn_slti", TILEPRO_INSN_SLT, true, "lll" },
|
||
{ "__insn_slti_u", TILEPRO_INSN_SLT_U, true, "lll" },
|
||
{ "__insn_sltib", TILEPRO_INSN_SLTIB, true, "lll" },
|
||
{ "__insn_sltib_u", TILEPRO_INSN_SLTIB_U, true, "lll" },
|
||
{ "__insn_sltih", TILEPRO_INSN_SLTIH, true, "lll" },
|
||
{ "__insn_sltih_u", TILEPRO_INSN_SLTIH_U, true, "lll" },
|
||
{ "__insn_sne", TILEPRO_INSN_SNE, true, "lll" },
|
||
{ "__insn_sneb", TILEPRO_INSN_SNEB, true, "lll" },
|
||
{ "__insn_sneh", TILEPRO_INSN_SNEH, true, "lll" },
|
||
{ "__insn_sra", TILEPRO_INSN_SRA, true, "lll" },
|
||
{ "__insn_srab", TILEPRO_INSN_SRAB, true, "lll" },
|
||
{ "__insn_srah", TILEPRO_INSN_SRAH, true, "lll" },
|
||
{ "__insn_srai", TILEPRO_INSN_SRA, true, "lll" },
|
||
{ "__insn_sraib", TILEPRO_INSN_SRAIB, true, "lll" },
|
||
{ "__insn_sraih", TILEPRO_INSN_SRAIH, true, "lll" },
|
||
{ "__insn_sub", TILEPRO_INSN_SUB, true, "lll" },
|
||
{ "__insn_subb", TILEPRO_INSN_SUBB, true, "lll" },
|
||
{ "__insn_subbs_u", TILEPRO_INSN_SUBBS_U, false, "lll" },
|
||
{ "__insn_subh", TILEPRO_INSN_SUBH, true, "lll" },
|
||
{ "__insn_subhs", TILEPRO_INSN_SUBHS, false, "lll" },
|
||
{ "__insn_subs", TILEPRO_INSN_SUBS, false, "lll" },
|
||
{ "__insn_sw", TILEPRO_INSN_SW, false, "vpl" },
|
||
{ "__insn_tblidxb0", TILEPRO_INSN_TBLIDXB0, true, "lll" },
|
||
{ "__insn_tblidxb1", TILEPRO_INSN_TBLIDXB1, true, "lll" },
|
||
{ "__insn_tblidxb2", TILEPRO_INSN_TBLIDXB2, true, "lll" },
|
||
{ "__insn_tblidxb3", TILEPRO_INSN_TBLIDXB3, true, "lll" },
|
||
{ "__insn_tns", TILEPRO_INSN_TNS, false, "lp" },
|
||
{ "__insn_wh64", TILEPRO_INSN_WH64, false, "vp" },
|
||
{ "__insn_xor", TILEPRO_INSN_XOR, true, "lll" },
|
||
{ "__insn_xori", TILEPRO_INSN_XOR, true, "lll" },
|
||
{ "__tile_network_barrier", TILEPRO_NETWORK_BARRIER, false, "v" },
|
||
{ "__tile_idn0_receive", TILEPRO_IDN0_RECEIVE, false, "l" },
|
||
{ "__tile_idn1_receive", TILEPRO_IDN1_RECEIVE, false, "l" },
|
||
{ "__tile_idn_send", TILEPRO_IDN_SEND, false, "vl" },
|
||
{ "__tile_sn_receive", TILEPRO_SN_RECEIVE, false, "l" },
|
||
{ "__tile_sn_send", TILEPRO_SN_SEND, false, "vl" },
|
||
{ "__tile_udn0_receive", TILEPRO_UDN0_RECEIVE, false, "l" },
|
||
{ "__tile_udn1_receive", TILEPRO_UDN1_RECEIVE, false, "l" },
|
||
{ "__tile_udn2_receive", TILEPRO_UDN2_RECEIVE, false, "l" },
|
||
{ "__tile_udn3_receive", TILEPRO_UDN3_RECEIVE, false, "l" },
|
||
{ "__tile_udn_send", TILEPRO_UDN_SEND, false, "vl" },
|
||
};
|
||
|
||
|
||
/* Convert a character in a builtin type string to a tree type. */
|
||
static tree
|
||
char_to_type (char c)
|
||
{
|
||
static tree volatile_ptr_type_node = NULL;
|
||
static tree volatile_const_ptr_type_node = NULL;
|
||
|
||
if (volatile_ptr_type_node == NULL)
|
||
{
|
||
volatile_ptr_type_node =
|
||
build_pointer_type (build_qualified_type (void_type_node,
|
||
TYPE_QUAL_VOLATILE));
|
||
volatile_const_ptr_type_node =
|
||
build_pointer_type (build_qualified_type (void_type_node,
|
||
TYPE_QUAL_CONST
|
||
| TYPE_QUAL_VOLATILE));
|
||
}
|
||
|
||
switch (c)
|
||
{
|
||
case 'v':
|
||
return void_type_node;
|
||
case 'l':
|
||
return long_unsigned_type_node;
|
||
case 'p':
|
||
return volatile_ptr_type_node;
|
||
case 'k':
|
||
return volatile_const_ptr_type_node;
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
}
|
||
|
||
|
||
/* Implement TARGET_INIT_BUILTINS. */
|
||
static void
|
||
tilepro_init_builtins (void)
|
||
{
|
||
size_t i;
|
||
|
||
for (i = 0; i < ARRAY_SIZE (tilepro_builtins); i++)
|
||
{
|
||
const struct tilepro_builtin_def *p = &tilepro_builtins[i];
|
||
tree ftype, ret_type, arg_type_list = void_list_node;
|
||
tree decl;
|
||
int j;
|
||
|
||
for (j = strlen (p->type) - 1; j > 0; j--)
|
||
{
|
||
arg_type_list =
|
||
tree_cons (NULL_TREE, char_to_type (p->type[j]), arg_type_list);
|
||
}
|
||
|
||
ret_type = char_to_type (p->type[0]);
|
||
|
||
ftype = build_function_type (ret_type, arg_type_list);
|
||
|
||
decl = add_builtin_function (p->name, ftype, p->code, BUILT_IN_MD,
|
||
NULL, NULL);
|
||
|
||
if (p->is_const)
|
||
TREE_READONLY (decl) = 1;
|
||
TREE_NOTHROW (decl) = 1;
|
||
|
||
if (tilepro_builtin_info[p->code].fndecl == NULL)
|
||
tilepro_builtin_info[p->code].fndecl = decl;
|
||
}
|
||
}
|
||
|
||
|
||
/* Implement TARGET_EXPAND_BUILTIN. */
|
||
static rtx
|
||
tilepro_expand_builtin (tree exp,
|
||
rtx target,
|
||
rtx subtarget ATTRIBUTE_UNUSED,
|
||
enum machine_mode mode ATTRIBUTE_UNUSED,
|
||
int ignore ATTRIBUTE_UNUSED)
|
||
{
|
||
#define MAX_BUILTIN_ARGS 4
|
||
|
||
tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
|
||
unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
|
||
tree arg;
|
||
call_expr_arg_iterator iter;
|
||
enum insn_code icode;
|
||
rtx op[MAX_BUILTIN_ARGS + 1], pat;
|
||
int opnum;
|
||
bool nonvoid;
|
||
insn_gen_fn fn;
|
||
|
||
if (fcode >= TILEPRO_BUILTIN_max)
|
||
internal_error ("bad builtin fcode");
|
||
icode = tilepro_builtin_info[fcode].icode;
|
||
if (icode == 0)
|
||
internal_error ("bad builtin icode");
|
||
|
||
nonvoid = TREE_TYPE (TREE_TYPE (fndecl)) != void_type_node;
|
||
|
||
opnum = nonvoid;
|
||
FOR_EACH_CALL_EXPR_ARG (arg, iter, exp)
|
||
{
|
||
const struct insn_operand_data *insn_op;
|
||
|
||
if (arg == error_mark_node)
|
||
return NULL_RTX;
|
||
if (opnum > MAX_BUILTIN_ARGS)
|
||
return NULL_RTX;
|
||
|
||
insn_op = &insn_data[icode].operand[opnum];
|
||
|
||
op[opnum] = expand_expr (arg, NULL_RTX, insn_op->mode, EXPAND_NORMAL);
|
||
|
||
if (!(*insn_op->predicate) (op[opnum], insn_op->mode))
|
||
op[opnum] = copy_to_mode_reg (insn_op->mode, op[opnum]);
|
||
|
||
if (!(*insn_op->predicate) (op[opnum], insn_op->mode))
|
||
{
|
||
/* We still failed to meet the predicate even after moving
|
||
into a register. Assume we needed an immediate. */
|
||
error_at (EXPR_LOCATION (exp),
|
||
"operand must be an immediate of the right size");
|
||
return const0_rtx;
|
||
}
|
||
|
||
opnum++;
|
||
}
|
||
|
||
if (nonvoid)
|
||
{
|
||
enum machine_mode tmode = insn_data[icode].operand[0].mode;
|
||
if (!target
|
||
|| GET_MODE (target) != tmode
|
||
|| !(*insn_data[icode].operand[0].predicate) (target, tmode))
|
||
target = gen_reg_rtx (tmode);
|
||
op[0] = target;
|
||
}
|
||
|
||
fn = GEN_FCN (icode);
|
||
switch (opnum)
|
||
{
|
||
case 0:
|
||
pat = fn (NULL_RTX);
|
||
break;
|
||
case 1:
|
||
pat = fn (op[0]);
|
||
break;
|
||
case 2:
|
||
pat = fn (op[0], op[1]);
|
||
break;
|
||
case 3:
|
||
pat = fn (op[0], op[1], op[2]);
|
||
break;
|
||
case 4:
|
||
pat = fn (op[0], op[1], op[2], op[3]);
|
||
break;
|
||
case 5:
|
||
pat = fn (op[0], op[1], op[2], op[3], op[4]);
|
||
break;
|
||
default:
|
||
gcc_unreachable ();
|
||
}
|
||
if (!pat)
|
||
return NULL_RTX;
|
||
|
||
/* If we are generating a prefetch, tell the scheduler not to move
|
||
it around. */
|
||
if (GET_CODE (pat) == PREFETCH)
|
||
PREFETCH_SCHEDULE_BARRIER_P (pat) = true;
|
||
|
||
emit_insn (pat);
|
||
|
||
if (nonvoid)
|
||
return target;
|
||
else
|
||
return const0_rtx;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_BUILTIN_DECL. */
|
||
static tree
|
||
tilepro_builtin_decl (unsigned code, bool initialize_p ATTRIBUTE_UNUSED)
|
||
{
|
||
if (code >= TILEPRO_BUILTIN_max)
|
||
return error_mark_node;
|
||
|
||
return tilepro_builtin_info[code].fndecl;
|
||
}
|
||
|
||
|
||
|
||
/* Stack frames */
|
||
|
||
/* Return whether REGNO needs to be saved in the stack frame. */
|
||
static bool
|
||
need_to_save_reg (unsigned int regno)
|
||
{
|
||
if (!fixed_regs[regno] && !call_used_regs[regno]
|
||
&& df_regs_ever_live_p (regno))
|
||
return true;
|
||
|
||
if (flag_pic
|
||
&& (regno == PIC_OFFSET_TABLE_REGNUM
|
||
|| regno == TILEPRO_PIC_TEXT_LABEL_REGNUM)
|
||
&& (crtl->uses_pic_offset_table || crtl->saves_all_registers))
|
||
return true;
|
||
|
||
if (crtl->calls_eh_return)
|
||
{
|
||
unsigned i;
|
||
for (i = 0; EH_RETURN_DATA_REGNO (i) != INVALID_REGNUM; i++)
|
||
{
|
||
if (regno == EH_RETURN_DATA_REGNO (i))
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
|
||
/* Return the size of the register savev area. This function is only
|
||
correct starting with local register allocation */
|
||
static int
|
||
tilepro_saved_regs_size (void)
|
||
{
|
||
int reg_save_size = 0;
|
||
int regno;
|
||
int offset_to_frame;
|
||
int align_mask;
|
||
|
||
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
|
||
if (need_to_save_reg (regno))
|
||
reg_save_size += UNITS_PER_WORD;
|
||
|
||
/* Pad out the register save area if necessary to make
|
||
frame_pointer_rtx be as aligned as the stack pointer. */
|
||
offset_to_frame = crtl->args.pretend_args_size + reg_save_size;
|
||
align_mask = (STACK_BOUNDARY / BITS_PER_UNIT) - 1;
|
||
reg_save_size += (-offset_to_frame) & align_mask;
|
||
|
||
return reg_save_size;
|
||
}
|
||
|
||
|
||
/* Round up frame size SIZE. */
|
||
static int
|
||
round_frame_size (int size)
|
||
{
|
||
return ((size + STACK_BOUNDARY / BITS_PER_UNIT - 1)
|
||
& -STACK_BOUNDARY / BITS_PER_UNIT);
|
||
}
|
||
|
||
|
||
/* Emit a store in the stack frame to save REGNO at address ADDR, and
|
||
emit the corresponding REG_CFA_OFFSET note described by CFA and
|
||
CFA_OFFSET. Return the emitted insn. */
|
||
static rtx
|
||
frame_emit_store (int regno, int regno_note, rtx addr, rtx cfa,
|
||
int cfa_offset)
|
||
{
|
||
rtx reg = gen_rtx_REG (Pmode, regno);
|
||
rtx mem = gen_frame_mem (Pmode, addr);
|
||
rtx mov = gen_movsi (mem, reg);
|
||
|
||
/* Describe what just happened in a way that dwarf understands. We
|
||
use temporary registers to hold the address to make scheduling
|
||
easier, and use the REG_CFA_OFFSET to describe the address as an
|
||
offset from the CFA. */
|
||
rtx reg_note = gen_rtx_REG (Pmode, regno_note);
|
||
rtx cfa_relative_addr = gen_rtx_PLUS (Pmode, cfa, gen_int_si (cfa_offset));
|
||
rtx cfa_relative_mem = gen_frame_mem (Pmode, cfa_relative_addr);
|
||
rtx real = gen_rtx_SET (VOIDmode, cfa_relative_mem, reg_note);
|
||
add_reg_note (mov, REG_CFA_OFFSET, real);
|
||
|
||
return emit_insn (mov);
|
||
}
|
||
|
||
|
||
/* Emit a load in the stack frame to load REGNO from address ADDR.
|
||
Add a REG_CFA_RESTORE note to CFA_RESTORES if CFA_RESTORES is
|
||
non-null. Return the emitted insn. */
|
||
static rtx
|
||
frame_emit_load (int regno, rtx addr, rtx *cfa_restores)
|
||
{
|
||
rtx reg = gen_rtx_REG (Pmode, regno);
|
||
rtx mem = gen_frame_mem (Pmode, addr);
|
||
if (cfa_restores)
|
||
*cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, *cfa_restores);
|
||
return emit_insn (gen_movsi (reg, mem));
|
||
}
|
||
|
||
|
||
/* Helper function to set RTX_FRAME_RELATED_P on instructions,
|
||
including sequences. */
|
||
static rtx
|
||
set_frame_related_p (void)
|
||
{
|
||
rtx seq = get_insns ();
|
||
rtx insn;
|
||
|
||
end_sequence ();
|
||
|
||
if (!seq)
|
||
return NULL_RTX;
|
||
|
||
if (INSN_P (seq))
|
||
{
|
||
insn = seq;
|
||
while (insn != NULL_RTX)
|
||
{
|
||
RTX_FRAME_RELATED_P (insn) = 1;
|
||
insn = NEXT_INSN (insn);
|
||
}
|
||
seq = emit_insn (seq);
|
||
}
|
||
else
|
||
{
|
||
seq = emit_insn (seq);
|
||
RTX_FRAME_RELATED_P (seq) = 1;
|
||
}
|
||
return seq;
|
||
}
|
||
|
||
|
||
#define FRP(exp) (start_sequence (), exp, set_frame_related_p ())
|
||
|
||
/* This emits code for 'sp += offset'.
|
||
|
||
The ABI only allows us to modify 'sp' in a single 'addi' or
|
||
'addli', so the backtracer understands it. Larger amounts cannot
|
||
use those instructions, so are added by placing the offset into a
|
||
large register and using 'add'.
|
||
|
||
This happens after reload, so we need to expand it ourselves. */
|
||
static rtx
|
||
emit_sp_adjust (int offset, int *next_scratch_regno, bool frame_related,
|
||
rtx reg_notes)
|
||
{
|
||
rtx to_add;
|
||
rtx imm_rtx = gen_int_si (offset);
|
||
|
||
rtx insn;
|
||
if (satisfies_constraint_J (imm_rtx))
|
||
{
|
||
/* We can add this using a single addi or addli. */
|
||
to_add = imm_rtx;
|
||
}
|
||
else
|
||
{
|
||
rtx tmp = gen_rtx_REG (Pmode, (*next_scratch_regno)--);
|
||
tilepro_expand_set_const32 (tmp, imm_rtx);
|
||
to_add = tmp;
|
||
}
|
||
|
||
/* Actually adjust the stack pointer. */
|
||
insn = emit_insn (gen_sp_adjust (stack_pointer_rtx, stack_pointer_rtx,
|
||
to_add));
|
||
REG_NOTES (insn) = reg_notes;
|
||
|
||
/* Describe what just happened in a way that dwarf understands. */
|
||
if (frame_related)
|
||
{
|
||
rtx real = gen_rtx_SET (VOIDmode, stack_pointer_rtx,
|
||
gen_rtx_PLUS (Pmode, stack_pointer_rtx,
|
||
imm_rtx));
|
||
RTX_FRAME_RELATED_P (insn) = 1;
|
||
add_reg_note (insn, REG_CFA_ADJUST_CFA, real);
|
||
}
|
||
|
||
return insn;
|
||
}
|
||
|
||
|
||
/* Return whether the current function is leaf. This takes into
|
||
account whether the function calls tls_get_addr. */
|
||
static bool
|
||
tilepro_current_function_is_leaf (void)
|
||
{
|
||
return crtl->is_leaf && !cfun->machine->calls_tls_get_addr;
|
||
}
|
||
|
||
|
||
/* Return the frame size. */
|
||
static int
|
||
compute_total_frame_size (void)
|
||
{
|
||
int total_size = (get_frame_size () + tilepro_saved_regs_size ()
|
||
+ crtl->outgoing_args_size
|
||
+ crtl->args.pretend_args_size);
|
||
|
||
if (!tilepro_current_function_is_leaf () || cfun->calls_alloca)
|
||
{
|
||
/* Make room for save area in callee. */
|
||
total_size += STACK_POINTER_OFFSET;
|
||
}
|
||
|
||
return round_frame_size (total_size);
|
||
}
|
||
|
||
|
||
/* Return nonzero if this function is known to have a null epilogue.
|
||
This allows the optimizer to omit jumps to jumps if no stack was
|
||
created. */
|
||
bool
|
||
tilepro_can_use_return_insn_p (void)
|
||
{
|
||
return (reload_completed
|
||
&& cfun->static_chain_decl == 0
|
||
&& compute_total_frame_size () == 0
|
||
&& tilepro_current_function_is_leaf ()
|
||
&& !crtl->profile && !df_regs_ever_live_p (TILEPRO_LINK_REGNUM));
|
||
}
|
||
|
||
|
||
/* Returns an rtx for a stack slot at 'FP + offset_from_fp'. If there
|
||
is a frame pointer, it computes the value relative to
|
||
that. Otherwise it uses the stack pointer. */
|
||
static rtx
|
||
compute_frame_addr (int offset_from_fp, int *next_scratch_regno)
|
||
{
|
||
rtx base_reg_rtx, tmp_reg_rtx, offset_rtx;
|
||
int offset_from_base;
|
||
|
||
if (frame_pointer_needed)
|
||
{
|
||
base_reg_rtx = hard_frame_pointer_rtx;
|
||
offset_from_base = offset_from_fp;
|
||
}
|
||
else
|
||
{
|
||
int offset_from_sp = compute_total_frame_size () + offset_from_fp;
|
||
base_reg_rtx = stack_pointer_rtx;
|
||
offset_from_base = offset_from_sp;
|
||
}
|
||
|
||
if (offset_from_base == 0)
|
||
return base_reg_rtx;
|
||
|
||
/* Compute the new value of the stack pointer. */
|
||
tmp_reg_rtx = gen_rtx_REG (Pmode, (*next_scratch_regno)--);
|
||
offset_rtx = gen_int_si (offset_from_base);
|
||
|
||
if (!tilepro_expand_addsi (tmp_reg_rtx, base_reg_rtx, offset_rtx))
|
||
{
|
||
emit_insn (gen_rtx_SET (VOIDmode, tmp_reg_rtx,
|
||
gen_rtx_PLUS (Pmode, base_reg_rtx,
|
||
offset_rtx)));
|
||
}
|
||
|
||
return tmp_reg_rtx;
|
||
}
|
||
|
||
|
||
/* The stack frame looks like this:
|
||
+-------------+
|
||
| ... |
|
||
| incoming |
|
||
| stack args |
|
||
AP -> +-------------+
|
||
| caller's HFP|
|
||
+-------------+
|
||
| lr save |
|
||
HFP -> +-------------+
|
||
| var args |
|
||
| reg save | crtl->args.pretend_args_size bytes
|
||
+-------------+
|
||
| ... |
|
||
| saved regs | tilepro_saved_regs_size() bytes
|
||
FP -> +-------------+
|
||
| ... |
|
||
| vars | get_frame_size() bytes
|
||
+-------------+
|
||
| ... |
|
||
| outgoing |
|
||
| stack args | crtl->outgoing_args_size bytes
|
||
+-------------+
|
||
| HFP | 4 bytes (only here if nonleaf / alloca)
|
||
+-------------+
|
||
| callee lr | 4 bytes (only here if nonleaf / alloca)
|
||
| save |
|
||
SP -> +-------------+
|
||
|
||
HFP == incoming SP.
|
||
|
||
For functions with a frame larger than 32767 bytes, or which use
|
||
alloca (), r52 is used as a frame pointer. Otherwise there is no
|
||
frame pointer.
|
||
|
||
FP is saved at SP+4 before calling a subroutine so the
|
||
callee can chain. */
|
||
void
|
||
tilepro_expand_prologue (void)
|
||
{
|
||
#define ROUND_ROBIN_SIZE 4
|
||
/* We round-robin through four scratch registers to hold temporary
|
||
addresses for saving registers, to make instruction scheduling
|
||
easier. */
|
||
rtx reg_save_addr[ROUND_ROBIN_SIZE] = {
|
||
NULL_RTX, NULL_RTX, NULL_RTX, NULL_RTX
|
||
};
|
||
rtx insn, cfa;
|
||
unsigned int which_scratch;
|
||
int offset, start_offset, regno;
|
||
|
||
/* A register that holds a copy of the incoming fp. */
|
||
int fp_copy_regno = -1;
|
||
|
||
/* A register that holds a copy of the incoming sp. */
|
||
int sp_copy_regno = -1;
|
||
|
||
/* Next scratch register number to hand out (postdecrementing). */
|
||
int next_scratch_regno = 29;
|
||
|
||
int total_size = compute_total_frame_size ();
|
||
|
||
if (flag_stack_usage_info)
|
||
current_function_static_stack_size = total_size;
|
||
|
||
/* Save lr first in its special location because code after this
|
||
might use the link register as a scratch register. */
|
||
if (df_regs_ever_live_p (TILEPRO_LINK_REGNUM) || crtl->calls_eh_return)
|
||
FRP (frame_emit_store (TILEPRO_LINK_REGNUM, TILEPRO_LINK_REGNUM,
|
||
stack_pointer_rtx, stack_pointer_rtx, 0));
|
||
|
||
if (total_size == 0)
|
||
{
|
||
/* Load the PIC register if needed. */
|
||
if (flag_pic && crtl->uses_pic_offset_table)
|
||
load_pic_register (false);
|
||
|
||
return;
|
||
}
|
||
|
||
cfa = stack_pointer_rtx;
|
||
|
||
if (frame_pointer_needed)
|
||
{
|
||
fp_copy_regno = next_scratch_regno--;
|
||
|
||
/* Copy the old frame pointer aside so we can save it later. */
|
||
insn = FRP (emit_move_insn (gen_rtx_REG (word_mode, fp_copy_regno),
|
||
hard_frame_pointer_rtx));
|
||
add_reg_note (insn, REG_CFA_REGISTER, NULL_RTX);
|
||
|
||
/* Set up the frame pointer. */
|
||
insn = FRP (emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx));
|
||
add_reg_note (insn, REG_CFA_DEF_CFA, hard_frame_pointer_rtx);
|
||
cfa = hard_frame_pointer_rtx;
|
||
REGNO_POINTER_ALIGN (HARD_FRAME_POINTER_REGNUM) = STACK_BOUNDARY;
|
||
|
||
/* fp holds a copy of the incoming sp, in case we need to store
|
||
it. */
|
||
sp_copy_regno = HARD_FRAME_POINTER_REGNUM;
|
||
}
|
||
else if (!tilepro_current_function_is_leaf ())
|
||
{
|
||
/* Copy the old stack pointer aside so we can save it later. */
|
||
sp_copy_regno = next_scratch_regno--;
|
||
emit_move_insn (gen_rtx_REG (Pmode, sp_copy_regno),
|
||
stack_pointer_rtx);
|
||
}
|
||
|
||
if (tilepro_current_function_is_leaf ())
|
||
{
|
||
/* No need to store chain pointer to caller's frame. */
|
||
emit_sp_adjust (-total_size, &next_scratch_regno,
|
||
!frame_pointer_needed, NULL_RTX);
|
||
}
|
||
else
|
||
{
|
||
/* Save the frame pointer (incoming sp value) to support
|
||
backtracing. First we need to create an rtx with the store
|
||
address. */
|
||
rtx chain_addr = gen_rtx_REG (Pmode, next_scratch_regno--);
|
||
rtx size_rtx = gen_int_si (-(total_size - UNITS_PER_WORD));
|
||
|
||
if (add_operand (size_rtx, Pmode))
|
||
{
|
||
/* Expose more parallelism by computing this value from the
|
||
original stack pointer, not the one after we have pushed
|
||
the frame. */
|
||
rtx p = gen_rtx_PLUS (Pmode, stack_pointer_rtx, size_rtx);
|
||
emit_insn (gen_rtx_SET (VOIDmode, chain_addr, p));
|
||
emit_sp_adjust (-total_size, &next_scratch_regno,
|
||
!frame_pointer_needed, NULL_RTX);
|
||
}
|
||
else
|
||
{
|
||
/* The stack frame is large, so just store the incoming sp
|
||
value at *(new_sp + UNITS_PER_WORD). */
|
||
rtx p;
|
||
emit_sp_adjust (-total_size, &next_scratch_regno,
|
||
!frame_pointer_needed, NULL_RTX);
|
||
p = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
|
||
GEN_INT (UNITS_PER_WORD));
|
||
emit_insn (gen_rtx_SET (VOIDmode, chain_addr, p));
|
||
}
|
||
|
||
/* Save our frame pointer for backtrace chaining. */
|
||
emit_insn (gen_movsi (gen_frame_mem (SImode, chain_addr),
|
||
gen_rtx_REG (SImode, sp_copy_regno)));
|
||
}
|
||
|
||
/* Compute where to start storing registers we need to save. */
|
||
start_offset = -crtl->args.pretend_args_size - UNITS_PER_WORD;
|
||
offset = start_offset;
|
||
|
||
/* Store all registers that need saving. */
|
||
which_scratch = 0;
|
||
for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--)
|
||
if (need_to_save_reg (regno))
|
||
{
|
||
rtx r = reg_save_addr[which_scratch];
|
||
int from_regno;
|
||
int cfa_offset = frame_pointer_needed ? offset : total_size + offset;
|
||
|
||
if (r == NULL_RTX)
|
||
{
|
||
rtx p = compute_frame_addr (offset, &next_scratch_regno);
|
||
r = gen_rtx_REG (word_mode, next_scratch_regno--);
|
||
reg_save_addr[which_scratch] = r;
|
||
|
||
emit_insn (gen_rtx_SET (VOIDmode, r, p));
|
||
}
|
||
else
|
||
{
|
||
/* Advance to the next stack slot to store this register. */
|
||
int stride = ROUND_ROBIN_SIZE * -UNITS_PER_WORD;
|
||
rtx p = gen_rtx_PLUS (Pmode, r, GEN_INT (stride));
|
||
emit_insn (gen_rtx_SET (VOIDmode, r, p));
|
||
}
|
||
|
||
/* Save this register to the stack (but use the old fp value
|
||
we copied aside if appropriate). */
|
||
from_regno = (fp_copy_regno >= 0
|
||
&& regno ==
|
||
HARD_FRAME_POINTER_REGNUM) ? fp_copy_regno : regno;
|
||
FRP (frame_emit_store (from_regno, regno, r, cfa, cfa_offset));
|
||
|
||
offset -= UNITS_PER_WORD;
|
||
which_scratch = (which_scratch + 1) % ROUND_ROBIN_SIZE;
|
||
}
|
||
|
||
/* If profiling, force that to happen after the frame is set up. */
|
||
if (crtl->profile)
|
||
emit_insn (gen_blockage ());
|
||
|
||
/* Load the PIC register if needed. */
|
||
if (flag_pic && crtl->uses_pic_offset_table)
|
||
load_pic_register (false);
|
||
}
|
||
|
||
|
||
/* Implement the epilogue and sibcall_epilogue patterns. SIBCALL_P is
|
||
true for a sibcall_epilogue pattern, and false for an epilogue
|
||
pattern. */
|
||
void
|
||
tilepro_expand_epilogue (bool sibcall_p)
|
||
{
|
||
/* We round-robin through four scratch registers to hold temporary
|
||
addresses for saving registers, to make instruction scheduling
|
||
easier. */
|
||
rtx reg_save_addr[ROUND_ROBIN_SIZE] = {
|
||
NULL_RTX, NULL_RTX, NULL_RTX, NULL_RTX
|
||
};
|
||
rtx last_insn, insn;
|
||
unsigned int which_scratch;
|
||
int offset, start_offset, regno;
|
||
rtx cfa_restores = NULL_RTX;
|
||
|
||
/* A register that holds a copy of the incoming fp. */
|
||
int fp_copy_regno = -1;
|
||
|
||
/* Next scratch register number to hand out (postdecrementing). */
|
||
int next_scratch_regno = 29;
|
||
|
||
int total_size = compute_total_frame_size ();
|
||
|
||
last_insn = get_last_insn ();
|
||
|
||
/* Load lr first since we are going to need it first. */
|
||
insn = NULL;
|
||
if (df_regs_ever_live_p (TILEPRO_LINK_REGNUM))
|
||
{
|
||
insn = frame_emit_load (TILEPRO_LINK_REGNUM,
|
||
compute_frame_addr (0, &next_scratch_regno),
|
||
&cfa_restores);
|
||
}
|
||
|
||
if (total_size == 0)
|
||
{
|
||
if (insn)
|
||
{
|
||
RTX_FRAME_RELATED_P (insn) = 1;
|
||
REG_NOTES (insn) = cfa_restores;
|
||
}
|
||
goto done;
|
||
}
|
||
|
||
/* Compute where to start restoring registers. */
|
||
start_offset = -crtl->args.pretend_args_size - UNITS_PER_WORD;
|
||
offset = start_offset;
|
||
|
||
if (frame_pointer_needed)
|
||
fp_copy_regno = next_scratch_regno--;
|
||
|
||
/* Restore all callee-saved registers. */
|
||
which_scratch = 0;
|
||
for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--)
|
||
if (need_to_save_reg (regno))
|
||
{
|
||
rtx r = reg_save_addr[which_scratch];
|
||
if (r == NULL_RTX)
|
||
{
|
||
r = compute_frame_addr (offset, &next_scratch_regno);
|
||
reg_save_addr[which_scratch] = r;
|
||
}
|
||
else
|
||
{
|
||
/* Advance to the next stack slot to store this
|
||
register. */
|
||
int stride = ROUND_ROBIN_SIZE * -UNITS_PER_WORD;
|
||
rtx p = gen_rtx_PLUS (Pmode, r, GEN_INT (stride));
|
||
emit_insn (gen_rtx_SET (VOIDmode, r, p));
|
||
}
|
||
|
||
if (fp_copy_regno >= 0 && regno == HARD_FRAME_POINTER_REGNUM)
|
||
frame_emit_load (fp_copy_regno, r, NULL);
|
||
else
|
||
frame_emit_load (regno, r, &cfa_restores);
|
||
|
||
offset -= UNITS_PER_WORD;
|
||
which_scratch = (which_scratch + 1) % ROUND_ROBIN_SIZE;
|
||
}
|
||
|
||
if (!tilepro_current_function_is_leaf ())
|
||
cfa_restores =
|
||
alloc_reg_note (REG_CFA_RESTORE, stack_pointer_rtx, cfa_restores);
|
||
|
||
emit_insn (gen_blockage ());
|
||
|
||
if (frame_pointer_needed)
|
||
{
|
||
/* Restore the old stack pointer by copying from the frame
|
||
pointer. */
|
||
insn = emit_insn (gen_sp_restore (stack_pointer_rtx,
|
||
hard_frame_pointer_rtx));
|
||
RTX_FRAME_RELATED_P (insn) = 1;
|
||
REG_NOTES (insn) = cfa_restores;
|
||
add_reg_note (insn, REG_CFA_DEF_CFA, stack_pointer_rtx);
|
||
}
|
||
else
|
||
{
|
||
insn = emit_sp_adjust (total_size, &next_scratch_regno, true,
|
||
cfa_restores);
|
||
}
|
||
|
||
if (crtl->calls_eh_return)
|
||
emit_insn (gen_sp_adjust (stack_pointer_rtx, stack_pointer_rtx,
|
||
EH_RETURN_STACKADJ_RTX));
|
||
|
||
/* Restore the old frame pointer. */
|
||
if (frame_pointer_needed)
|
||
{
|
||
insn = emit_move_insn (hard_frame_pointer_rtx,
|
||
gen_rtx_REG (Pmode, fp_copy_regno));
|
||
add_reg_note (insn, REG_CFA_RESTORE, hard_frame_pointer_rtx);
|
||
}
|
||
|
||
/* Mark the pic registers as live outside of the function. */
|
||
if (flag_pic)
|
||
{
|
||
emit_use (cfun->machine->text_label_rtx);
|
||
emit_use (cfun->machine->got_rtx);
|
||
}
|
||
|
||
done:
|
||
if (!sibcall_p)
|
||
{
|
||
/* Emit the actual 'return' instruction. */
|
||
emit_jump_insn (gen__return ());
|
||
}
|
||
else
|
||
{
|
||
emit_use (gen_rtx_REG (Pmode, TILEPRO_LINK_REGNUM));
|
||
}
|
||
|
||
/* Mark all insns we just emitted as frame-related. */
|
||
for (; last_insn != NULL_RTX; last_insn = next_insn (last_insn))
|
||
RTX_FRAME_RELATED_P (last_insn) = 1;
|
||
}
|
||
|
||
#undef ROUND_ROBIN_SIZE
|
||
|
||
|
||
/* Implement INITIAL_ELIMINATION_OFFSET. */
|
||
int
|
||
tilepro_initial_elimination_offset (int from, int to)
|
||
{
|
||
int total_size = compute_total_frame_size ();
|
||
|
||
if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
|
||
{
|
||
return (total_size - crtl->args.pretend_args_size
|
||
- tilepro_saved_regs_size ());
|
||
}
|
||
else if (from == FRAME_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
|
||
{
|
||
return -(crtl->args.pretend_args_size + tilepro_saved_regs_size ());
|
||
}
|
||
else if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
|
||
{
|
||
return STACK_POINTER_OFFSET + total_size;
|
||
}
|
||
else if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
|
||
{
|
||
return STACK_POINTER_OFFSET;
|
||
}
|
||
else
|
||
gcc_unreachable ();
|
||
}
|
||
|
||
|
||
/* Return an RTX indicating where the return address to the
|
||
calling function can be found. */
|
||
rtx
|
||
tilepro_return_addr (int count, rtx frame ATTRIBUTE_UNUSED)
|
||
{
|
||
if (count != 0)
|
||
return const0_rtx;
|
||
|
||
return get_hard_reg_initial_val (Pmode, TILEPRO_LINK_REGNUM);
|
||
}
|
||
|
||
|
||
/* Implement EH_RETURN_HANDLER_RTX. */
|
||
rtx
|
||
tilepro_eh_return_handler_rtx (void)
|
||
{
|
||
/* The MEM needs to be volatile to prevent it from being
|
||
deleted. */
|
||
rtx tmp = gen_frame_mem (Pmode, hard_frame_pointer_rtx);
|
||
MEM_VOLATILE_P (tmp) = true;
|
||
return tmp;
|
||
}
|
||
|
||
|
||
|
||
/* Registers */
|
||
|
||
/* Implemnet TARGET_CONDITIONAL_REGISTER_USAGE. */
|
||
static void
|
||
tilepro_conditional_register_usage (void)
|
||
{
|
||
global_regs[TILEPRO_NETORDER_REGNUM] = 1;
|
||
/* TILEPRO_PIC_TEXT_LABEL_REGNUM is conditionally used. It is a
|
||
member of fixed_regs, and therefore must be member of
|
||
call_used_regs, but it is not a member of call_really_used_regs[]
|
||
because it is not clobbered by a call. */
|
||
if (TILEPRO_PIC_TEXT_LABEL_REGNUM != INVALID_REGNUM)
|
||
{
|
||
fixed_regs[TILEPRO_PIC_TEXT_LABEL_REGNUM] = 1;
|
||
call_used_regs[TILEPRO_PIC_TEXT_LABEL_REGNUM] = 1;
|
||
}
|
||
if (PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM)
|
||
{
|
||
fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;
|
||
call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;
|
||
}
|
||
}
|
||
|
||
|
||
/* Implement TARGET_FRAME_POINTER_REQUIRED. */
|
||
static bool
|
||
tilepro_frame_pointer_required (void)
|
||
{
|
||
return crtl->calls_eh_return || cfun->calls_alloca;
|
||
}
|
||
|
||
|
||
|
||
/* Scheduling and reorg */
|
||
|
||
/* Return the length of INSN. LENGTH is the initial length computed
|
||
by attributes in the machine-description file. This is where we
|
||
account for bundles. */
|
||
int
|
||
tilepro_adjust_insn_length (rtx insn, int length)
|
||
{
|
||
enum machine_mode mode = GET_MODE (insn);
|
||
|
||
/* A non-termininating instruction in a bundle has length 0. */
|
||
if (mode == SImode)
|
||
return 0;
|
||
|
||
/* By default, there is not length adjustment. */
|
||
return length;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_SCHED_ISSUE_RATE. */
|
||
static int
|
||
tilepro_issue_rate (void)
|
||
{
|
||
return 3;
|
||
}
|
||
|
||
|
||
/* Return the rtx for the jump target. */
|
||
static rtx
|
||
get_jump_target (rtx branch)
|
||
{
|
||
if (CALL_P (branch))
|
||
{
|
||
rtx call;
|
||
call = PATTERN (branch);
|
||
|
||
if (GET_CODE (call) == PARALLEL)
|
||
call = XVECEXP (call, 0, 0);
|
||
|
||
if (GET_CODE (call) == SET)
|
||
call = SET_SRC (call);
|
||
|
||
if (GET_CODE (call) == CALL)
|
||
return XEXP (XEXP (call, 0), 0);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/* Implement TARGET_SCHED_ADJUST_COST. */
|
||
static int
|
||
tilepro_sched_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost)
|
||
{
|
||
/* If we have a true dependence, INSN is a call, and DEP_INSN
|
||
defines a register that is needed by the call (argument or stack
|
||
pointer), set its latency to 0 so that it can be bundled with
|
||
the call. Explicitly check for and exclude the case when
|
||
DEP_INSN defines the target of the jump. */
|
||
if (CALL_P (insn) && REG_NOTE_KIND (link) == REG_DEP_TRUE)
|
||
{
|
||
rtx target = get_jump_target (insn);
|
||
if (!REG_P (target) || !set_of (target, dep_insn))
|
||
return 0;
|
||
}
|
||
|
||
return cost;
|
||
}
|
||
|
||
|
||
/* Skip over irrelevant NOTEs and such and look for the next insn we
|
||
would consider bundling. */
|
||
static rtx
|
||
next_insn_to_bundle (rtx r, rtx end)
|
||
{
|
||
for (; r != end; r = NEXT_INSN (r))
|
||
{
|
||
if (NONDEBUG_INSN_P (r)
|
||
&& GET_CODE (PATTERN (r)) != USE
|
||
&& GET_CODE (PATTERN (r)) != CLOBBER)
|
||
return r;
|
||
}
|
||
|
||
return NULL_RTX;
|
||
}
|
||
|
||
|
||
/* Go through all insns, and use the information generated during
|
||
scheduling to generate SEQUENCEs to represent bundles of
|
||
instructions issued simultaneously. */
|
||
static void
|
||
tilepro_gen_bundles (void)
|
||
{
|
||
basic_block bb;
|
||
FOR_EACH_BB_FN (bb, cfun)
|
||
{
|
||
rtx insn, next;
|
||
rtx end = NEXT_INSN (BB_END (bb));
|
||
|
||
for (insn = next_insn_to_bundle (BB_HEAD (bb), end); insn; insn = next)
|
||
{
|
||
next = next_insn_to_bundle (NEXT_INSN (insn), end);
|
||
|
||
/* Never wrap {} around inline asm. */
|
||
if (GET_CODE (PATTERN (insn)) != ASM_INPUT)
|
||
{
|
||
if (next == NULL_RTX || GET_MODE (next) == TImode
|
||
/* NOTE: The scheduler incorrectly believes a call
|
||
insn can execute in the same cycle as the insn
|
||
after the call. This is of course impossible.
|
||
Really we need to fix the scheduler somehow, so
|
||
the code after the call gets scheduled
|
||
optimally. */
|
||
|| CALL_P (insn))
|
||
{
|
||
/* Mark current insn as the end of a bundle. */
|
||
PUT_MODE (insn, QImode);
|
||
}
|
||
else
|
||
{
|
||
/* Mark it as part of a bundle. */
|
||
PUT_MODE (insn, SImode);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/* Helper function for tilepro_fixup_pcrel_references. */
|
||
static void
|
||
replace_pc_relative_symbol_ref (rtx insn, rtx opnds[4], bool first_insn_p)
|
||
{
|
||
rtx new_insns;
|
||
|
||
start_sequence ();
|
||
|
||
if (flag_pic == 1)
|
||
{
|
||
if (!first_insn_p)
|
||
{
|
||
emit_insn (gen_add_got16 (opnds[0], tilepro_got_rtx (),
|
||
opnds[2]));
|
||
emit_insn (gen_insn_lw (opnds[0], opnds[0]));
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (first_insn_p)
|
||
{
|
||
emit_insn (gen_addhi_got32 (opnds[0], tilepro_got_rtx (),
|
||
opnds[2]));
|
||
}
|
||
else
|
||
{
|
||
emit_insn (gen_addlo_got32 (opnds[0], opnds[1], opnds[2]));
|
||
emit_insn (gen_insn_lw (opnds[0], opnds[0]));
|
||
}
|
||
}
|
||
|
||
new_insns = get_insns ();
|
||
end_sequence ();
|
||
|
||
if (new_insns)
|
||
emit_insn_before (new_insns, insn);
|
||
|
||
delete_insn (insn);
|
||
}
|
||
|
||
|
||
/* Returns whether INSN is a pc-relative addli insn. */
|
||
static bool
|
||
match_addli_pcrel (rtx insn)
|
||
{
|
||
rtx pattern = PATTERN (insn);
|
||
rtx unspec;
|
||
|
||
if (GET_CODE (pattern) != SET)
|
||
return false;
|
||
|
||
if (GET_CODE (SET_SRC (pattern)) != LO_SUM)
|
||
return false;
|
||
|
||
if (GET_CODE (XEXP (SET_SRC (pattern), 1)) != CONST)
|
||
return false;
|
||
|
||
unspec = XEXP (XEXP (SET_SRC (pattern), 1), 0);
|
||
|
||
return (GET_CODE (unspec) == UNSPEC
|
||
&& XINT (unspec, 1) == UNSPEC_PCREL_SYM);
|
||
}
|
||
|
||
|
||
/* Helper function for tilepro_fixup_pcrel_references. */
|
||
static void
|
||
replace_addli_pcrel (rtx insn)
|
||
{
|
||
rtx pattern = PATTERN (insn);
|
||
rtx set_src;
|
||
rtx unspec;
|
||
rtx opnds[4];
|
||
bool first_insn_p;
|
||
|
||
gcc_assert (GET_CODE (pattern) == SET);
|
||
opnds[0] = SET_DEST (pattern);
|
||
|
||
set_src = SET_SRC (pattern);
|
||
gcc_assert (GET_CODE (set_src) == LO_SUM);
|
||
gcc_assert (GET_CODE (XEXP (set_src, 1)) == CONST);
|
||
opnds[1] = XEXP (set_src, 0);
|
||
|
||
unspec = XEXP (XEXP (set_src, 1), 0);
|
||
gcc_assert (GET_CODE (unspec) == UNSPEC);
|
||
gcc_assert (XINT (unspec, 1) == UNSPEC_PCREL_SYM);
|
||
opnds[2] = XVECEXP (unspec, 0, 0);
|
||
opnds[3] = XVECEXP (unspec, 0, 1);
|
||
|
||
/* We only need to replace SYMBOL_REFs, not LABEL_REFs. */
|
||
if (GET_CODE (opnds[2]) != SYMBOL_REF)
|
||
return;
|
||
|
||
first_insn_p = (opnds[1] == tilepro_text_label_rtx ());
|
||
|
||
replace_pc_relative_symbol_ref (insn, opnds, first_insn_p);
|
||
}
|
||
|
||
|
||
/* Returns whether INSN is a pc-relative auli insn. */
|
||
static bool
|
||
match_auli_pcrel (rtx insn)
|
||
{
|
||
rtx pattern = PATTERN (insn);
|
||
rtx high;
|
||
rtx unspec;
|
||
|
||
if (GET_CODE (pattern) != SET)
|
||
return false;
|
||
|
||
if (GET_CODE (SET_SRC (pattern)) != PLUS)
|
||
return false;
|
||
|
||
high = XEXP (SET_SRC (pattern), 1);
|
||
|
||
if (GET_CODE (high) != HIGH
|
||
|| GET_CODE (XEXP (high, 0)) != CONST)
|
||
return false;
|
||
|
||
unspec = XEXP (XEXP (high, 0), 0);
|
||
|
||
return (GET_CODE (unspec) == UNSPEC
|
||
&& XINT (unspec, 1) == UNSPEC_PCREL_SYM);
|
||
}
|
||
|
||
|
||
/* Helper function for tilepro_fixup_pcrel_references. */
|
||
static void
|
||
replace_auli_pcrel (rtx insn)
|
||
{
|
||
rtx pattern = PATTERN (insn);
|
||
rtx set_src;
|
||
rtx high;
|
||
rtx unspec;
|
||
rtx opnds[4];
|
||
bool first_insn_p;
|
||
|
||
gcc_assert (GET_CODE (pattern) == SET);
|
||
opnds[0] = SET_DEST (pattern);
|
||
|
||
set_src = SET_SRC (pattern);
|
||
gcc_assert (GET_CODE (set_src) == PLUS);
|
||
opnds[1] = XEXP (set_src, 0);
|
||
|
||
high = XEXP (set_src, 1);
|
||
gcc_assert (GET_CODE (high) == HIGH);
|
||
gcc_assert (GET_CODE (XEXP (high, 0)) == CONST);
|
||
|
||
unspec = XEXP (XEXP (high, 0), 0);
|
||
gcc_assert (GET_CODE (unspec) == UNSPEC);
|
||
gcc_assert (XINT (unspec, 1) == UNSPEC_PCREL_SYM);
|
||
opnds[2] = XVECEXP (unspec, 0, 0);
|
||
opnds[3] = XVECEXP (unspec, 0, 1);
|
||
|
||
/* We only need to replace SYMBOL_REFs, not LABEL_REFs. */
|
||
if (GET_CODE (opnds[2]) != SYMBOL_REF)
|
||
return;
|
||
|
||
first_insn_p = (opnds[1] == tilepro_text_label_rtx ());
|
||
|
||
replace_pc_relative_symbol_ref (insn, opnds, first_insn_p);
|
||
}
|
||
|
||
|
||
/* We generate PC relative SYMBOL_REFs as an optimization, to avoid
|
||
going through the GOT when the symbol is local to the compilation
|
||
unit. But such a symbol requires that the common text_label that
|
||
we generate at the beginning of the function be in the same section
|
||
as the reference to the SYMBOL_REF. This may not be true if we
|
||
generate hot/cold sections. This function looks for such cases and
|
||
replaces such references with the longer sequence going through the
|
||
GOT.
|
||
|
||
We expect one of the following two instruction sequences:
|
||
addli tmp1, txt_label_reg, lo16(sym - txt_label)
|
||
auli tmp2, tmp1, ha16(sym - txt_label)
|
||
|
||
auli tmp1, txt_label_reg, ha16(sym - txt_label)
|
||
addli tmp2, tmp1, lo16(sym - txt_label)
|
||
|
||
If we're compiling -fpic, we replace the first instruction with
|
||
nothing, and the second instruction with:
|
||
|
||
addli tmp2, got_rtx, got(sym)
|
||
lw tmp2, tmp2
|
||
|
||
If we're compiling -fPIC, we replace the first instruction with:
|
||
|
||
auli tmp1, got_rtx, got_ha16(sym)
|
||
|
||
and the second instruction with:
|
||
|
||
addli tmp2, tmp1, got_lo16(sym)
|
||
lw tmp2, tmp2
|
||
|
||
Note that we're careful to disturb the instruction sequence as
|
||
little as possible, since it's very late in the compilation
|
||
process.
|
||
*/
|
||
static void
|
||
tilepro_fixup_pcrel_references (void)
|
||
{
|
||
rtx insn, next_insn;
|
||
bool same_section_as_entry = true;
|
||
|
||
for (insn = get_insns (); insn; insn = next_insn)
|
||
{
|
||
next_insn = NEXT_INSN (insn);
|
||
|
||
if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_SWITCH_TEXT_SECTIONS)
|
||
{
|
||
same_section_as_entry = !same_section_as_entry;
|
||
continue;
|
||
}
|
||
|
||
if (same_section_as_entry)
|
||
continue;
|
||
|
||
if (!(INSN_P (insn)
|
||
&& GET_CODE (PATTERN (insn)) != USE
|
||
&& GET_CODE (PATTERN (insn)) != CLOBBER))
|
||
continue;
|
||
|
||
if (match_addli_pcrel (insn))
|
||
replace_addli_pcrel (insn);
|
||
else if (match_auli_pcrel (insn))
|
||
replace_auli_pcrel (insn);
|
||
}
|
||
}
|
||
|
||
|
||
/* Ensure that no var tracking notes are emitted in the middle of a
|
||
three-instruction bundle. */
|
||
static void
|
||
reorder_var_tracking_notes (void)
|
||
{
|
||
basic_block bb;
|
||
FOR_EACH_BB_FN (bb, cfun)
|
||
{
|
||
rtx insn, next;
|
||
rtx queue = NULL_RTX;
|
||
bool in_bundle = false;
|
||
|
||
for (insn = BB_HEAD (bb); insn != BB_END (bb); insn = next)
|
||
{
|
||
next = NEXT_INSN (insn);
|
||
|
||
if (INSN_P (insn))
|
||
{
|
||
/* Emit queued up notes at the last instruction of a bundle. */
|
||
if (GET_MODE (insn) == QImode)
|
||
{
|
||
while (queue)
|
||
{
|
||
rtx next_queue = PREV_INSN (queue);
|
||
SET_PREV_INSN (NEXT_INSN (insn)) = queue;
|
||
SET_NEXT_INSN (queue) = NEXT_INSN (insn);
|
||
SET_NEXT_INSN (insn) = queue;
|
||
SET_PREV_INSN (queue) = insn;
|
||
queue = next_queue;
|
||
}
|
||
in_bundle = false;
|
||
}
|
||
else if (GET_MODE (insn) == SImode)
|
||
in_bundle = true;
|
||
}
|
||
else if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_VAR_LOCATION)
|
||
{
|
||
if (in_bundle)
|
||
{
|
||
rtx prev = PREV_INSN (insn);
|
||
SET_PREV_INSN (next) = prev;
|
||
SET_NEXT_INSN (prev) = next;
|
||
|
||
SET_PREV_INSN (insn) = queue;
|
||
queue = insn;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/* Perform machine dependent operations on the rtl chain INSNS. */
|
||
static void
|
||
tilepro_reorg (void)
|
||
{
|
||
/* We are freeing block_for_insn in the toplev to keep compatibility
|
||
with old MDEP_REORGS that are not CFG based. Recompute it
|
||
now. */
|
||
compute_bb_for_insn ();
|
||
|
||
if (flag_reorder_blocks_and_partition)
|
||
{
|
||
tilepro_fixup_pcrel_references ();
|
||
}
|
||
|
||
if (flag_schedule_insns_after_reload)
|
||
{
|
||
split_all_insns ();
|
||
|
||
timevar_push (TV_SCHED2);
|
||
schedule_insns ();
|
||
timevar_pop (TV_SCHED2);
|
||
|
||
/* Examine the schedule to group into bundles. */
|
||
tilepro_gen_bundles ();
|
||
}
|
||
|
||
df_analyze ();
|
||
|
||
if (flag_var_tracking)
|
||
{
|
||
timevar_push (TV_VAR_TRACKING);
|
||
variable_tracking_main ();
|
||
reorder_var_tracking_notes ();
|
||
timevar_pop (TV_VAR_TRACKING);
|
||
}
|
||
|
||
df_finish_pass (false);
|
||
}
|
||
|
||
|
||
|
||
/* Assembly */
|
||
|
||
/* Select a format to encode pointers in exception handling data.
|
||
CODE is 0 for data, 1 for code labels, 2 for function pointers.
|
||
GLOBAL is true if the symbol may be affected by dynamic
|
||
relocations. */
|
||
int
|
||
tilepro_asm_preferred_eh_data_format (int code ATTRIBUTE_UNUSED, int global)
|
||
{
|
||
return (global ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_ASM_OUTPUT_MI_THUNK. */
|
||
static void
|
||
tilepro_asm_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
|
||
HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset,
|
||
tree function)
|
||
{
|
||
rtx this_rtx, insn, funexp;
|
||
|
||
/* Pretend to be a post-reload pass while generating rtl. */
|
||
reload_completed = 1;
|
||
|
||
/* Mark the end of the (empty) prologue. */
|
||
emit_note (NOTE_INSN_PROLOGUE_END);
|
||
|
||
/* Find the "this" pointer. If the function returns a structure,
|
||
the structure return pointer is in $1. */
|
||
if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function))
|
||
this_rtx = gen_rtx_REG (Pmode, 1);
|
||
else
|
||
this_rtx = gen_rtx_REG (Pmode, 0);
|
||
|
||
/* Add DELTA to THIS_RTX. */
|
||
emit_insn (gen_addsi3 (this_rtx, this_rtx, GEN_INT (delta)));
|
||
|
||
/* If needed, add *(*THIS_RTX + VCALL_OFFSET) to THIS_RTX. */
|
||
if (vcall_offset)
|
||
{
|
||
rtx tmp;
|
||
|
||
tmp = gen_rtx_REG (Pmode, 29);
|
||
emit_move_insn (tmp, gen_rtx_MEM (Pmode, this_rtx));
|
||
|
||
emit_insn (gen_addsi3 (tmp, tmp, GEN_INT (vcall_offset)));
|
||
|
||
emit_move_insn (tmp, gen_rtx_MEM (Pmode, tmp));
|
||
|
||
emit_insn (gen_addsi3 (this_rtx, this_rtx, tmp));
|
||
}
|
||
|
||
/* Generate a tail call to the target function. */
|
||
if (!TREE_USED (function))
|
||
{
|
||
assemble_external (function);
|
||
TREE_USED (function) = 1;
|
||
}
|
||
funexp = XEXP (DECL_RTL (function), 0);
|
||
funexp = gen_rtx_MEM (FUNCTION_MODE, funexp);
|
||
insn = emit_call_insn (gen_sibcall (funexp, const0_rtx));
|
||
SIBLING_CALL_P (insn) = 1;
|
||
|
||
/* Run just enough of rest_of_compilation to get the insns emitted.
|
||
There's not really enough bulk here to make other passes such as
|
||
instruction scheduling worth while. Note that use_thunk calls
|
||
assemble_start_function and assemble_end_function.
|
||
|
||
We don't currently bundle, but the instruciton sequence is all
|
||
serial except for the tail call, so we're only wasting one cycle.
|
||
*/
|
||
insn = get_insns ();
|
||
shorten_branches (insn);
|
||
final_start_function (insn, file, 1);
|
||
final (insn, file, 1);
|
||
final_end_function ();
|
||
|
||
/* Stop pretending to be a post-reload pass. */
|
||
reload_completed = 0;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_ASM_TRAMPOLINE_TEMPLATE. */
|
||
static void
|
||
tilepro_asm_trampoline_template (FILE *file)
|
||
{
|
||
fprintf (file, "\tlnk r10\n");
|
||
fprintf (file, "\taddi r10, r10, 32\n");
|
||
fprintf (file, "\tlwadd r11, r10, %d\n", GET_MODE_SIZE (ptr_mode));
|
||
fprintf (file, "\tlw r10, r10\n");
|
||
fprintf (file, "\tjr r11\n");
|
||
fprintf (file, "\t.word 0 # <function address>\n");
|
||
fprintf (file, "\t.word 0 # <static chain value>\n");
|
||
}
|
||
|
||
|
||
/* Implement TARGET_TRAMPOLINE_INIT. */
|
||
static void
|
||
tilepro_trampoline_init (rtx m_tramp, tree fndecl, rtx static_chain)
|
||
{
|
||
rtx fnaddr, chaddr;
|
||
rtx mem;
|
||
rtx begin_addr, end_addr;
|
||
int ptr_mode_size = GET_MODE_SIZE (ptr_mode);
|
||
|
||
fnaddr = copy_to_reg (XEXP (DECL_RTL (fndecl), 0));
|
||
chaddr = copy_to_reg (static_chain);
|
||
|
||
emit_block_move (m_tramp, assemble_trampoline_template (),
|
||
GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL);
|
||
|
||
mem = adjust_address (m_tramp, ptr_mode,
|
||
TRAMPOLINE_SIZE - 2 * ptr_mode_size);
|
||
emit_move_insn (mem, fnaddr);
|
||
mem = adjust_address (m_tramp, ptr_mode,
|
||
TRAMPOLINE_SIZE - ptr_mode_size);
|
||
emit_move_insn (mem, chaddr);
|
||
|
||
/* Get pointers to the beginning and end of the code block. */
|
||
begin_addr = force_reg (Pmode, XEXP (m_tramp, 0));
|
||
end_addr = force_reg (Pmode, plus_constant (Pmode, XEXP (m_tramp, 0),
|
||
TRAMPOLINE_SIZE));
|
||
|
||
emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__clear_cache"),
|
||
LCT_NORMAL, VOIDmode, 2, begin_addr, Pmode,
|
||
end_addr, Pmode);
|
||
}
|
||
|
||
|
||
/* Implement TARGET_PRINT_OPERAND. */
|
||
static void
|
||
tilepro_print_operand (FILE *file, rtx x, int code)
|
||
{
|
||
switch (code)
|
||
{
|
||
case 'c':
|
||
/* Print the compare operator opcode for conditional moves. */
|
||
switch (GET_CODE (x))
|
||
{
|
||
case EQ:
|
||
fputs ("z", file);
|
||
break;
|
||
case NE:
|
||
fputs ("nz", file);
|
||
break;
|
||
default:
|
||
output_operand_lossage ("invalid %%c operand");
|
||
}
|
||
return;
|
||
|
||
case 'C':
|
||
/* Print the compare operator opcode for conditional moves. */
|
||
switch (GET_CODE (x))
|
||
{
|
||
case EQ:
|
||
fputs ("nz", file);
|
||
break;
|
||
case NE:
|
||
fputs ("z", file);
|
||
break;
|
||
default:
|
||
output_operand_lossage ("invalid %%C operand");
|
||
}
|
||
return;
|
||
|
||
case 'h':
|
||
{
|
||
/* Print the high 16 bits of a 32-bit constant. */
|
||
HOST_WIDE_INT i;
|
||
if (CONST_INT_P (x))
|
||
i = INTVAL (x);
|
||
else if (GET_CODE (x) == CONST_DOUBLE)
|
||
i = CONST_DOUBLE_LOW (x);
|
||
else
|
||
{
|
||
output_operand_lossage ("invalid %%h operand");
|
||
return;
|
||
}
|
||
i = trunc_int_for_mode (i >> 16, HImode);
|
||
fprintf (file, HOST_WIDE_INT_PRINT_DEC, i);
|
||
return;
|
||
}
|
||
|
||
case 'H':
|
||
{
|
||
rtx addr = NULL;
|
||
const char *opstr = NULL;
|
||
bool pcrel = false;
|
||
if (GET_CODE (x) == CONST
|
||
&& GET_CODE (XEXP (x, 0)) == UNSPEC)
|
||
{
|
||
addr = XVECEXP (XEXP (x, 0), 0, 0);
|
||
switch (XINT (XEXP (x, 0), 1))
|
||
{
|
||
case UNSPEC_GOT32_SYM:
|
||
opstr = "got_ha16";
|
||
break;
|
||
case UNSPEC_PCREL_SYM:
|
||
opstr = "ha16";
|
||
pcrel = true;
|
||
break;
|
||
case UNSPEC_TLS_GD:
|
||
opstr = "tls_gd_ha16";
|
||
break;
|
||
case UNSPEC_TLS_IE:
|
||
opstr = "tls_ie_ha16";
|
||
break;
|
||
case UNSPEC_TLS_LE:
|
||
opstr = "tls_le_ha16";
|
||
break;
|
||
default:
|
||
output_operand_lossage ("invalid %%H operand");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
addr = x;
|
||
opstr = "ha16";
|
||
}
|
||
|
||
fputs (opstr, file);
|
||
fputc ('(', file);
|
||
output_addr_const (file, addr);
|
||
|
||
if (pcrel)
|
||
{
|
||
rtx addr2 = XVECEXP (XEXP (x, 0), 0, 1);
|
||
fputs (" - " , file);
|
||
output_addr_const (file, addr2);
|
||
}
|
||
|
||
fputc (')', file);
|
||
return;
|
||
}
|
||
|
||
case 'I':
|
||
/* Print an auto-inc memory operand. */
|
||
if (!MEM_P (x))
|
||
{
|
||
output_operand_lossage ("invalid %%I operand");
|
||
return;
|
||
}
|
||
|
||
output_memory_reference_mode = GET_MODE (x);
|
||
output_memory_autoinc_first = true;
|
||
output_address (XEXP (x, 0));
|
||
output_memory_reference_mode = VOIDmode;
|
||
return;
|
||
|
||
case 'i':
|
||
/* Print an auto-inc memory operand. */
|
||
if (!MEM_P (x))
|
||
{
|
||
output_operand_lossage ("invalid %%i operand");
|
||
return;
|
||
}
|
||
|
||
output_memory_reference_mode = GET_MODE (x);
|
||
output_memory_autoinc_first = false;
|
||
output_address (XEXP (x, 0));
|
||
output_memory_reference_mode = VOIDmode;
|
||
return;
|
||
|
||
case 'j':
|
||
{
|
||
/* Print the low 8 bits of a constant. */
|
||
HOST_WIDE_INT i;
|
||
if (CONST_INT_P (x))
|
||
i = INTVAL (x);
|
||
else if (GET_CODE (x) == CONST_DOUBLE)
|
||
i = CONST_DOUBLE_LOW (x);
|
||
else if (GET_CODE (x) == CONST_VECTOR
|
||
&& CONST_INT_P (CONST_VECTOR_ELT (x, 0)))
|
||
i = INTVAL (CONST_VECTOR_ELT (x, 0));
|
||
else
|
||
{
|
||
output_operand_lossage ("invalid %%j operand");
|
||
return;
|
||
}
|
||
i = trunc_int_for_mode (i, QImode);
|
||
fprintf (file, HOST_WIDE_INT_PRINT_DEC, i);
|
||
return;
|
||
}
|
||
|
||
case 'L':
|
||
{
|
||
rtx addr = NULL;
|
||
const char *opstr = NULL;
|
||
bool pcrel = false;
|
||
if (GET_CODE (x) == CONST
|
||
&& GET_CODE (XEXP (x, 0)) == UNSPEC)
|
||
{
|
||
addr = XVECEXP (XEXP (x, 0), 0, 0);
|
||
switch (XINT (XEXP (x, 0), 1))
|
||
{
|
||
case UNSPEC_GOT16_SYM:
|
||
opstr = "got";
|
||
break;
|
||
case UNSPEC_GOT32_SYM:
|
||
opstr = "got_lo16";
|
||
break;
|
||
case UNSPEC_PCREL_SYM:
|
||
opstr = "lo16";
|
||
pcrel = true;
|
||
break;
|
||
case UNSPEC_TLS_GD:
|
||
opstr = "tls_gd_lo16";
|
||
break;
|
||
case UNSPEC_TLS_IE:
|
||
opstr = "tls_ie_lo16";
|
||
break;
|
||
case UNSPEC_TLS_LE:
|
||
opstr = "tls_le_lo16";
|
||
break;
|
||
default:
|
||
output_operand_lossage ("invalid %%L operand");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
addr = x;
|
||
opstr = "lo16";
|
||
}
|
||
|
||
fputs (opstr, file);
|
||
fputc ('(', file);
|
||
output_addr_const (file, addr);
|
||
|
||
if (pcrel)
|
||
{
|
||
rtx addr2 = XVECEXP (XEXP (x, 0), 0, 1);
|
||
fputs (" - " , file);
|
||
output_addr_const (file, addr2);
|
||
}
|
||
|
||
fputc (')', file);
|
||
return;
|
||
}
|
||
|
||
case 'p':
|
||
if (GET_CODE (x) == SYMBOL_REF)
|
||
{
|
||
if (flag_pic && !SYMBOL_REF_LOCAL_P (x))
|
||
fprintf (file, "plt(");
|
||
output_addr_const (file, x);
|
||
if (flag_pic && !SYMBOL_REF_LOCAL_P (x))
|
||
fprintf (file, ")");
|
||
}
|
||
else
|
||
output_addr_const (file, x);
|
||
return;
|
||
|
||
case 'P':
|
||
{
|
||
/* Print a 32-bit constant plus one. */
|
||
HOST_WIDE_INT i;
|
||
if (!CONST_INT_P (x))
|
||
{
|
||
output_operand_lossage ("invalid %%P operand");
|
||
return;
|
||
}
|
||
i = trunc_int_for_mode (INTVAL (x) + 1, SImode);
|
||
fprintf (file, HOST_WIDE_INT_PRINT_DEC, i);
|
||
return;
|
||
}
|
||
|
||
case 'M':
|
||
{
|
||
/* Print an mm-style bit range. */
|
||
int first_bit, last_bit;
|
||
|
||
if (!CONST_INT_P (x)
|
||
|| !tilepro_bitfield_operand_p (INTVAL (x), &first_bit,
|
||
&last_bit))
|
||
{
|
||
output_operand_lossage ("invalid %%M operand");
|
||
return;
|
||
}
|
||
|
||
fprintf (file, "%d, %d", first_bit, last_bit);
|
||
return;
|
||
}
|
||
|
||
case 'N':
|
||
{
|
||
const char *reg = NULL;
|
||
|
||
/* Print a network register. */
|
||
if (!CONST_INT_P (x))
|
||
{
|
||
output_operand_lossage ("invalid %%N operand");
|
||
return;
|
||
}
|
||
|
||
switch (INTVAL (x))
|
||
{
|
||
case TILEPRO_NETREG_IDN0: reg = "idn0"; break;
|
||
case TILEPRO_NETREG_IDN1: reg = "idn1"; break;
|
||
case TILEPRO_NETREG_SN: reg = "sn"; break;
|
||
case TILEPRO_NETREG_UDN0: reg = "udn0"; break;
|
||
case TILEPRO_NETREG_UDN1: reg = "udn1"; break;
|
||
case TILEPRO_NETREG_UDN2: reg = "udn2"; break;
|
||
case TILEPRO_NETREG_UDN3: reg = "udn3"; break;
|
||
default: gcc_unreachable ();
|
||
}
|
||
|
||
fprintf (file, reg);
|
||
return;
|
||
}
|
||
|
||
case 't':
|
||
{
|
||
/* Log base 2 of a power of two. */
|
||
HOST_WIDE_INT i;
|
||
HOST_WIDE_INT n;
|
||
|
||
if (!CONST_INT_P (x))
|
||
{
|
||
output_operand_lossage ("invalid %%t operand");
|
||
return;
|
||
}
|
||
n = trunc_int_for_mode (INTVAL (x), SImode);
|
||
i = exact_log2 (n);
|
||
if (i < 0)
|
||
{
|
||
output_operand_lossage ("invalid %%t operand '"
|
||
HOST_WIDE_INT_PRINT_DEC "'", n);
|
||
return;
|
||
}
|
||
|
||
fprintf (file, HOST_WIDE_INT_PRINT_DEC, i);
|
||
return;
|
||
}
|
||
break;
|
||
|
||
case 'r':
|
||
/* In this case we need a register. Use 'zero' if the
|
||
operand is const0_rtx. */
|
||
if (x == const0_rtx
|
||
|| (GET_MODE (x) != VOIDmode && x == CONST0_RTX (GET_MODE (x))))
|
||
{
|
||
fputs ("zero", file);
|
||
return;
|
||
}
|
||
else if (!REG_P (x))
|
||
{
|
||
output_operand_lossage ("invalid %%r operand");
|
||
return;
|
||
}
|
||
/* FALLTHRU */
|
||
|
||
case 0:
|
||
if (REG_P (x))
|
||
{
|
||
fprintf (file, "%s", reg_names[REGNO (x)]);
|
||
return;
|
||
}
|
||
else if (MEM_P (x))
|
||
{
|
||
output_memory_reference_mode = VOIDmode;
|
||
output_address (XEXP (x, 0));
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
output_addr_const (file, x);
|
||
return;
|
||
}
|
||
break;
|
||
}
|
||
|
||
debug_rtx (x);
|
||
output_operand_lossage ("unable to print out operand yet; code == %d (%c)",
|
||
code, code);
|
||
}
|
||
|
||
|
||
/* Implement TARGET_PRINT_OPERAND_ADDRESS. */
|
||
static void
|
||
tilepro_print_operand_address (FILE *file, rtx addr)
|
||
{
|
||
if (GET_CODE (addr) == POST_DEC
|
||
|| GET_CODE (addr) == POST_INC)
|
||
{
|
||
int offset = GET_MODE_SIZE (output_memory_reference_mode);
|
||
|
||
gcc_assert (output_memory_reference_mode != VOIDmode);
|
||
|
||
if (output_memory_autoinc_first)
|
||
fprintf (file, "%s", reg_names[REGNO (XEXP (addr, 0))]);
|
||
else
|
||
fprintf (file, "%d",
|
||
GET_CODE (addr) == POST_DEC ? -offset : offset);
|
||
}
|
||
else if (GET_CODE (addr) == POST_MODIFY)
|
||
{
|
||
gcc_assert (output_memory_reference_mode != VOIDmode);
|
||
|
||
gcc_assert (GET_CODE (XEXP (addr, 1)) == PLUS);
|
||
|
||
if (output_memory_autoinc_first)
|
||
fprintf (file, "%s", reg_names[REGNO (XEXP (addr, 0))]);
|
||
else
|
||
fprintf (file, HOST_WIDE_INT_PRINT_DEC,
|
||
INTVAL (XEXP (XEXP (addr, 1), 1)));
|
||
}
|
||
else
|
||
tilepro_print_operand (file, addr, 'r');
|
||
}
|
||
|
||
|
||
/* Machine mode of current insn, for determining curly brace
|
||
placement. */
|
||
static enum machine_mode insn_mode;
|
||
|
||
|
||
/* Implement FINAL_PRESCAN_INSN. This is used to emit bundles. */
|
||
void
|
||
tilepro_final_prescan_insn (rtx insn)
|
||
{
|
||
/* Record this for tilepro_asm_output_opcode to examine. */
|
||
insn_mode = GET_MODE (insn);
|
||
}
|
||
|
||
|
||
/* While emitting asm, are we currently inside '{' for a bundle? */
|
||
static bool tilepro_in_bundle = false;
|
||
|
||
/* Implement ASM_OUTPUT_OPCODE. Prepend/append curly braces as
|
||
appropriate given the bundling information recorded by
|
||
tilepro_gen_bundles. */
|
||
const char *
|
||
tilepro_asm_output_opcode (FILE *stream, const char *code)
|
||
{
|
||
bool pseudo = !strcmp (code, "pseudo");
|
||
|
||
if (!tilepro_in_bundle && insn_mode == SImode)
|
||
{
|
||
/* Start a new bundle. */
|
||
fprintf (stream, "{\n\t");
|
||
tilepro_in_bundle = true;
|
||
}
|
||
|
||
if (tilepro_in_bundle && insn_mode == QImode)
|
||
{
|
||
/* Close an existing bundle. */
|
||
static char buf[100];
|
||
|
||
gcc_assert (strlen (code) + 3 + 1 < sizeof (buf));
|
||
|
||
strcpy (buf, pseudo ? "" : code);
|
||
strcat (buf, "\n\t}");
|
||
tilepro_in_bundle = false;
|
||
|
||
return buf;
|
||
}
|
||
else
|
||
{
|
||
return pseudo ? "" : code;
|
||
}
|
||
}
|
||
|
||
|
||
/* Output assembler code to FILE to increment profiler label # LABELNO
|
||
for profiling a function entry. */
|
||
void
|
||
tilepro_function_profiler (FILE *file, int labelno ATTRIBUTE_UNUSED)
|
||
{
|
||
if (tilepro_in_bundle)
|
||
{
|
||
fprintf (file, "\t}\n");
|
||
}
|
||
|
||
if (flag_pic)
|
||
{
|
||
fprintf (file,
|
||
"\t{\n"
|
||
"\tmove\tr10, lr\n"
|
||
"\tjal\tplt(%s)\n"
|
||
"\t}\n", MCOUNT_NAME);
|
||
}
|
||
else
|
||
{
|
||
fprintf (file,
|
||
"\t{\n"
|
||
"\tmove\tr10, lr\n"
|
||
"\tjal\t%s\n"
|
||
"\t}\n", MCOUNT_NAME);
|
||
}
|
||
|
||
tilepro_in_bundle = false;
|
||
}
|
||
|
||
|
||
/* Implement TARGET_ASM_FILE_END. */
|
||
static void
|
||
tilepro_file_end (void)
|
||
{
|
||
if (NEED_INDICATE_EXEC_STACK)
|
||
file_end_indicate_exec_stack ();
|
||
}
|
||
|
||
|
||
#undef TARGET_HAVE_TLS
|
||
#define TARGET_HAVE_TLS HAVE_AS_TLS
|
||
|
||
#undef TARGET_OPTION_OVERRIDE
|
||
#define TARGET_OPTION_OVERRIDE tilepro_option_override
|
||
|
||
#undef TARGET_SCALAR_MODE_SUPPORTED_P
|
||
#define TARGET_SCALAR_MODE_SUPPORTED_P tilepro_scalar_mode_supported_p
|
||
|
||
#undef TARGET_VECTOR_MODE_SUPPORTED_P
|
||
#define TARGET_VECTOR_MODE_SUPPORTED_P tile_vector_mode_supported_p
|
||
|
||
#undef TARGET_CANNOT_FORCE_CONST_MEM
|
||
#define TARGET_CANNOT_FORCE_CONST_MEM tilepro_cannot_force_const_mem
|
||
|
||
#undef TARGET_FUNCTION_OK_FOR_SIBCALL
|
||
#define TARGET_FUNCTION_OK_FOR_SIBCALL tilepro_function_ok_for_sibcall
|
||
|
||
#undef TARGET_PASS_BY_REFERENCE
|
||
#define TARGET_PASS_BY_REFERENCE tilepro_pass_by_reference
|
||
|
||
#undef TARGET_RETURN_IN_MEMORY
|
||
#define TARGET_RETURN_IN_MEMORY tilepro_return_in_memory
|
||
|
||
#undef TARGET_FUNCTION_ARG_BOUNDARY
|
||
#define TARGET_FUNCTION_ARG_BOUNDARY tilepro_function_arg_boundary
|
||
|
||
#undef TARGET_FUNCTION_ARG
|
||
#define TARGET_FUNCTION_ARG tilepro_function_arg
|
||
|
||
#undef TARGET_FUNCTION_ARG_ADVANCE
|
||
#define TARGET_FUNCTION_ARG_ADVANCE tilepro_function_arg_advance
|
||
|
||
#undef TARGET_FUNCTION_VALUE
|
||
#define TARGET_FUNCTION_VALUE tilepro_function_value
|
||
|
||
#undef TARGET_LIBCALL_VALUE
|
||
#define TARGET_LIBCALL_VALUE tilepro_libcall_value
|
||
|
||
#undef TARGET_FUNCTION_VALUE_REGNO_P
|
||
#define TARGET_FUNCTION_VALUE_REGNO_P tilepro_function_value_regno_p
|
||
|
||
#undef TARGET_PROMOTE_FUNCTION_MODE
|
||
#define TARGET_PROMOTE_FUNCTION_MODE \
|
||
default_promote_function_mode_always_promote
|
||
|
||
#undef TARGET_PROMOTE_PROTOTYPES
|
||
#define TARGET_PROMOTE_PROTOTYPES hook_bool_const_tree_false
|
||
|
||
#undef TARGET_BUILD_BUILTIN_VA_LIST
|
||
#define TARGET_BUILD_BUILTIN_VA_LIST tilepro_build_builtin_va_list
|
||
|
||
#undef TARGET_EXPAND_BUILTIN_VA_START
|
||
#define TARGET_EXPAND_BUILTIN_VA_START tilepro_va_start
|
||
|
||
#undef TARGET_SETUP_INCOMING_VARARGS
|
||
#define TARGET_SETUP_INCOMING_VARARGS tilepro_setup_incoming_varargs
|
||
|
||
#undef TARGET_GIMPLIFY_VA_ARG_EXPR
|
||
#define TARGET_GIMPLIFY_VA_ARG_EXPR tilepro_gimplify_va_arg_expr
|
||
|
||
#undef TARGET_RTX_COSTS
|
||
#define TARGET_RTX_COSTS tilepro_rtx_costs
|
||
|
||
/* Limit to what we can reach in one addli. */
|
||
#undef TARGET_MIN_ANCHOR_OFFSET
|
||
#define TARGET_MIN_ANCHOR_OFFSET -32768
|
||
#undef TARGET_MAX_ANCHOR_OFFSET
|
||
#define TARGET_MAX_ANCHOR_OFFSET 32767
|
||
|
||
#undef TARGET_LEGITIMATE_CONSTANT_P
|
||
#define TARGET_LEGITIMATE_CONSTANT_P tilepro_legitimate_constant_p
|
||
|
||
#undef TARGET_LEGITIMATE_ADDRESS_P
|
||
#define TARGET_LEGITIMATE_ADDRESS_P tilepro_legitimate_address_p
|
||
|
||
#undef TARGET_LEGITIMIZE_ADDRESS
|
||
#define TARGET_LEGITIMIZE_ADDRESS tilepro_legitimize_address
|
||
|
||
#undef TARGET_DELEGITIMIZE_ADDRESS
|
||
#define TARGET_DELEGITIMIZE_ADDRESS tilepro_delegitimize_address
|
||
|
||
#undef TARGET_INIT_BUILTINS
|
||
#define TARGET_INIT_BUILTINS tilepro_init_builtins
|
||
|
||
#undef TARGET_BUILTIN_DECL
|
||
#define TARGET_BUILTIN_DECL tilepro_builtin_decl
|
||
|
||
#undef TARGET_EXPAND_BUILTIN
|
||
#define TARGET_EXPAND_BUILTIN tilepro_expand_builtin
|
||
|
||
#undef TARGET_CONDITIONAL_REGISTER_USAGE
|
||
#define TARGET_CONDITIONAL_REGISTER_USAGE tilepro_conditional_register_usage
|
||
|
||
#undef TARGET_FRAME_POINTER_REQUIRED
|
||
#define TARGET_FRAME_POINTER_REQUIRED tilepro_frame_pointer_required
|
||
|
||
#undef TARGET_DELAY_SCHED2
|
||
#define TARGET_DELAY_SCHED2 true
|
||
|
||
#undef TARGET_DELAY_VARTRACK
|
||
#define TARGET_DELAY_VARTRACK true
|
||
|
||
#undef TARGET_SCHED_ISSUE_RATE
|
||
#define TARGET_SCHED_ISSUE_RATE tilepro_issue_rate
|
||
|
||
#undef TARGET_SCHED_ADJUST_COST
|
||
#define TARGET_SCHED_ADJUST_COST tilepro_sched_adjust_cost
|
||
|
||
#undef TARGET_MACHINE_DEPENDENT_REORG
|
||
#define TARGET_MACHINE_DEPENDENT_REORG tilepro_reorg
|
||
|
||
#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
|
||
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK \
|
||
hook_bool_const_tree_hwi_hwi_const_tree_true
|
||
|
||
#undef TARGET_ASM_OUTPUT_MI_THUNK
|
||
#define TARGET_ASM_OUTPUT_MI_THUNK tilepro_asm_output_mi_thunk
|
||
|
||
#undef TARGET_ASM_TRAMPOLINE_TEMPLATE
|
||
#define TARGET_ASM_TRAMPOLINE_TEMPLATE tilepro_asm_trampoline_template
|
||
|
||
#undef TARGET_TRAMPOLINE_INIT
|
||
#define TARGET_TRAMPOLINE_INIT tilepro_trampoline_init
|
||
|
||
#undef TARGET_PRINT_OPERAND
|
||
#define TARGET_PRINT_OPERAND tilepro_print_operand
|
||
|
||
#undef TARGET_PRINT_OPERAND_ADDRESS
|
||
#define TARGET_PRINT_OPERAND_ADDRESS tilepro_print_operand_address
|
||
|
||
#undef TARGET_ASM_FILE_END
|
||
#define TARGET_ASM_FILE_END tilepro_file_end
|
||
|
||
#undef TARGET_CAN_USE_DOLOOP_P
|
||
#define TARGET_CAN_USE_DOLOOP_P can_use_doloop_if_innermost
|
||
|
||
struct gcc_target targetm = TARGET_INITIALIZER;
|
||
|
||
#include "gt-tilepro.h"
|