812 lines
22 KiB
C
812 lines
22 KiB
C
/* Preamble and helpers for the autogenerated gimple-match.c file.
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Copyright (C) 2014-2016 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file 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 "backend.h"
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#include "target.h"
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#include "rtl.h"
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#include "tree.h"
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#include "gimple.h"
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#include "ssa.h"
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#include "cgraph.h"
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#include "fold-const.h"
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#include "fold-const-call.h"
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#include "stor-layout.h"
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#include "gimple-fold.h"
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#include "calls.h"
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#include "tree-dfa.h"
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#include "builtins.h"
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#include "gimple-match.h"
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#include "tree-pass.h"
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#include "internal-fn.h"
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#include "case-cfn-macros.h"
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#include "gimplify.h"
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/* Forward declarations of the private auto-generated matchers.
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They expect valueized operands in canonical order and do not
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perform simplification of all-constant operands. */
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static bool gimple_simplify (code_helper *, tree *,
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gimple_seq *, tree (*)(tree),
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code_helper, tree, tree);
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static bool gimple_simplify (code_helper *, tree *,
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gimple_seq *, tree (*)(tree),
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code_helper, tree, tree, tree);
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static bool gimple_simplify (code_helper *, tree *,
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gimple_seq *, tree (*)(tree),
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code_helper, tree, tree, tree, tree);
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/* Return whether T is a constant that we'll dispatch to fold to
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evaluate fully constant expressions. */
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static inline bool
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constant_for_folding (tree t)
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{
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return (CONSTANT_CLASS_P (t)
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/* The following is only interesting to string builtins. */
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|| (TREE_CODE (t) == ADDR_EXPR
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&& TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST));
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}
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/* Helper that matches and simplifies the toplevel result from
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a gimple_simplify run (where we don't want to build
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a stmt in case it's used in in-place folding). Replaces
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*RES_CODE and *RES_OPS with a simplified and/or canonicalized
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result and returns whether any change was made. */
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bool
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gimple_resimplify1 (gimple_seq *seq,
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code_helper *res_code, tree type, tree *res_ops,
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tree (*valueize)(tree))
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{
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if (constant_for_folding (res_ops[0]))
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{
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tree tem = NULL_TREE;
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if (res_code->is_tree_code ())
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tem = const_unop (*res_code, type, res_ops[0]);
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else
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tem = fold_const_call (combined_fn (*res_code), type, res_ops[0]);
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if (tem != NULL_TREE
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&& CONSTANT_CLASS_P (tem))
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{
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res_ops[0] = tem;
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res_ops[1] = NULL_TREE;
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res_ops[2] = NULL_TREE;
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*res_code = TREE_CODE (res_ops[0]);
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return true;
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}
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}
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code_helper res_code2;
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tree res_ops2[3] = {};
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if (gimple_simplify (&res_code2, res_ops2, seq, valueize,
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*res_code, type, res_ops[0]))
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{
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*res_code = res_code2;
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res_ops[0] = res_ops2[0];
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res_ops[1] = res_ops2[1];
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res_ops[2] = res_ops2[2];
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return true;
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}
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return false;
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}
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/* Helper that matches and simplifies the toplevel result from
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a gimple_simplify run (where we don't want to build
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a stmt in case it's used in in-place folding). Replaces
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*RES_CODE and *RES_OPS with a simplified and/or canonicalized
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result and returns whether any change was made. */
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bool
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gimple_resimplify2 (gimple_seq *seq,
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code_helper *res_code, tree type, tree *res_ops,
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tree (*valueize)(tree))
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{
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if (constant_for_folding (res_ops[0]) && constant_for_folding (res_ops[1]))
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{
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tree tem = NULL_TREE;
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if (res_code->is_tree_code ())
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tem = const_binop (*res_code, type, res_ops[0], res_ops[1]);
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else
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tem = fold_const_call (combined_fn (*res_code), type,
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res_ops[0], res_ops[1]);
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if (tem != NULL_TREE
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&& CONSTANT_CLASS_P (tem))
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{
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res_ops[0] = tem;
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res_ops[1] = NULL_TREE;
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res_ops[2] = NULL_TREE;
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*res_code = TREE_CODE (res_ops[0]);
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return true;
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}
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}
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/* Canonicalize operand order. */
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bool canonicalized = false;
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if (res_code->is_tree_code ()
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&& (TREE_CODE_CLASS ((enum tree_code) *res_code) == tcc_comparison
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|| commutative_tree_code (*res_code))
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&& tree_swap_operands_p (res_ops[0], res_ops[1], false))
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{
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std::swap (res_ops[0], res_ops[1]);
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if (TREE_CODE_CLASS ((enum tree_code) *res_code) == tcc_comparison)
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*res_code = swap_tree_comparison (*res_code);
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canonicalized = true;
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}
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code_helper res_code2;
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tree res_ops2[3] = {};
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if (gimple_simplify (&res_code2, res_ops2, seq, valueize,
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*res_code, type, res_ops[0], res_ops[1]))
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{
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*res_code = res_code2;
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res_ops[0] = res_ops2[0];
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res_ops[1] = res_ops2[1];
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res_ops[2] = res_ops2[2];
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return true;
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}
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return canonicalized;
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}
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/* Helper that matches and simplifies the toplevel result from
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a gimple_simplify run (where we don't want to build
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a stmt in case it's used in in-place folding). Replaces
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*RES_CODE and *RES_OPS with a simplified and/or canonicalized
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result and returns whether any change was made. */
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bool
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gimple_resimplify3 (gimple_seq *seq,
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code_helper *res_code, tree type, tree *res_ops,
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tree (*valueize)(tree))
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{
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if (constant_for_folding (res_ops[0]) && constant_for_folding (res_ops[1])
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&& constant_for_folding (res_ops[2]))
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{
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tree tem = NULL_TREE;
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if (res_code->is_tree_code ())
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tem = fold_ternary/*_to_constant*/ (*res_code, type, res_ops[0],
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res_ops[1], res_ops[2]);
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else
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tem = fold_const_call (combined_fn (*res_code), type,
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res_ops[0], res_ops[1], res_ops[2]);
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if (tem != NULL_TREE
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&& CONSTANT_CLASS_P (tem))
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{
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res_ops[0] = tem;
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res_ops[1] = NULL_TREE;
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res_ops[2] = NULL_TREE;
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*res_code = TREE_CODE (res_ops[0]);
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return true;
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}
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}
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/* Canonicalize operand order. */
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bool canonicalized = false;
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if (res_code->is_tree_code ()
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&& commutative_ternary_tree_code (*res_code)
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&& tree_swap_operands_p (res_ops[0], res_ops[1], false))
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{
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std::swap (res_ops[0], res_ops[1]);
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canonicalized = true;
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}
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code_helper res_code2;
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tree res_ops2[3] = {};
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if (gimple_simplify (&res_code2, res_ops2, seq, valueize,
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*res_code, type,
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res_ops[0], res_ops[1], res_ops[2]))
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{
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*res_code = res_code2;
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res_ops[0] = res_ops2[0];
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res_ops[1] = res_ops2[1];
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res_ops[2] = res_ops2[2];
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return true;
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}
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return canonicalized;
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}
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/* If in GIMPLE expressions with CODE go as single-rhs build
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a GENERIC tree for that expression into *OP0. */
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void
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maybe_build_generic_op (enum tree_code code, tree type, tree *ops)
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{
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switch (code)
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{
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case REALPART_EXPR:
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case IMAGPART_EXPR:
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case VIEW_CONVERT_EXPR:
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ops[0] = build1 (code, type, ops[0]);
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break;
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case BIT_FIELD_REF:
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ops[0] = build3 (code, type, ops[0], ops[1], ops[2]);
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ops[1] = ops[2] = NULL_TREE;
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break;
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default:;
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}
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}
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tree (*mprts_hook) (code_helper, tree, tree *);
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/* Try to build a call to FN with return type TYPE and the NARGS
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arguments given in OPS. Return null if the target doesn't support
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the function. */
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static gcall *
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build_call_internal (internal_fn fn, tree type, unsigned int nargs, tree *ops)
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{
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if (direct_internal_fn_p (fn))
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{
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tree_pair types = direct_internal_fn_types (fn, type, ops);
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if (!direct_internal_fn_supported_p (fn, types, OPTIMIZE_FOR_BOTH))
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return NULL;
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}
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return gimple_build_call_internal (fn, nargs, ops[0], ops[1], ops[2]);
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}
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/* Push the exploded expression described by RCODE, TYPE and OPS
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as a statement to SEQ if necessary and return a gimple value
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denoting the value of the expression. If RES is not NULL
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then the result will be always RES and even gimple values are
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pushed to SEQ. */
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tree
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maybe_push_res_to_seq (code_helper rcode, tree type, tree *ops,
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gimple_seq *seq, tree res)
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{
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if (rcode.is_tree_code ())
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{
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if (!res
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&& gimple_simplified_result_is_gimple_val (rcode, ops))
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return ops[0];
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if (mprts_hook)
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{
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tree tem = mprts_hook (rcode, type, ops);
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if (tem)
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return tem;
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}
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if (!seq)
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return NULL_TREE;
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/* Play safe and do not allow abnormals to be mentioned in
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newly created statements. */
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if ((TREE_CODE (ops[0]) == SSA_NAME
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&& SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ops[0]))
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|| (ops[1]
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&& TREE_CODE (ops[1]) == SSA_NAME
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&& SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ops[1]))
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|| (ops[2]
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&& TREE_CODE (ops[2]) == SSA_NAME
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&& SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ops[2]))
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|| (COMPARISON_CLASS_P (ops[0])
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&& ((TREE_CODE (TREE_OPERAND (ops[0], 0)) == SSA_NAME
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&& SSA_NAME_OCCURS_IN_ABNORMAL_PHI (TREE_OPERAND (ops[0],
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0)))
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|| (TREE_CODE (TREE_OPERAND (ops[0], 1)) == SSA_NAME
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&& SSA_NAME_OCCURS_IN_ABNORMAL_PHI (TREE_OPERAND (ops[0],
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1))))))
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return NULL_TREE;
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if (!res)
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{
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if (gimple_in_ssa_p (cfun))
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res = make_ssa_name (type);
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else
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res = create_tmp_reg (type);
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}
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maybe_build_generic_op (rcode, type, ops);
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gimple *new_stmt = gimple_build_assign (res, rcode,
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ops[0], ops[1], ops[2]);
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gimple_seq_add_stmt_without_update (seq, new_stmt);
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return res;
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}
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else
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{
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if (!seq)
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return NULL_TREE;
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combined_fn fn = rcode;
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/* Play safe and do not allow abnormals to be mentioned in
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newly created statements. */
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unsigned nargs;
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for (nargs = 0; nargs < 3; ++nargs)
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{
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if (!ops[nargs])
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break;
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if (TREE_CODE (ops[nargs]) == SSA_NAME
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&& SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ops[nargs]))
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return NULL_TREE;
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}
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gcc_assert (nargs != 0);
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gcall *new_stmt = NULL;
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if (internal_fn_p (fn))
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{
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/* Generate the given function if we can. */
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internal_fn ifn = as_internal_fn (fn);
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new_stmt = build_call_internal (ifn, type, nargs, ops);
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if (!new_stmt)
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return NULL_TREE;
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}
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else
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{
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/* Find the function we want to call. */
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tree decl = builtin_decl_implicit (as_builtin_fn (fn));
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if (!decl)
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return NULL;
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/* We can't and should not emit calls to non-const functions. */
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if (!(flags_from_decl_or_type (decl) & ECF_CONST))
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return NULL;
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new_stmt = gimple_build_call (decl, nargs, ops[0], ops[1], ops[2]);
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}
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if (!res)
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{
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if (gimple_in_ssa_p (cfun))
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res = make_ssa_name (type);
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else
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res = create_tmp_reg (type);
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}
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gimple_call_set_lhs (new_stmt, res);
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gimple_seq_add_stmt_without_update (seq, new_stmt);
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return res;
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}
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}
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/* Public API overloads follow for operation being tree_code or
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built_in_function and for one to three operands or arguments.
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They return NULL_TREE if nothing could be simplified or
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the resulting simplified value with parts pushed to SEQ.
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If SEQ is NULL then if the simplification needs to create
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new stmts it will fail. If VALUEIZE is non-NULL then all
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SSA names will be valueized using that hook prior to
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applying simplifications. */
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/* Unary ops. */
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tree
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gimple_simplify (enum tree_code code, tree type,
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tree op0,
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gimple_seq *seq, tree (*valueize)(tree))
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{
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if (constant_for_folding (op0))
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{
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tree res = const_unop (code, type, op0);
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if (res != NULL_TREE
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&& CONSTANT_CLASS_P (res))
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return res;
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}
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code_helper rcode;
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tree ops[3] = {};
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if (!gimple_simplify (&rcode, ops, seq, valueize,
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code, type, op0))
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return NULL_TREE;
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return maybe_push_res_to_seq (rcode, type, ops, seq);
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}
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/* Binary ops. */
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tree
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gimple_simplify (enum tree_code code, tree type,
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tree op0, tree op1,
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gimple_seq *seq, tree (*valueize)(tree))
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{
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if (constant_for_folding (op0) && constant_for_folding (op1))
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{
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tree res = const_binop (code, type, op0, op1);
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if (res != NULL_TREE
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&& CONSTANT_CLASS_P (res))
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return res;
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}
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/* Canonicalize operand order both for matching and fallback stmt
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generation. */
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if ((commutative_tree_code (code)
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|| TREE_CODE_CLASS (code) == tcc_comparison)
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&& tree_swap_operands_p (op0, op1, false))
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{
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std::swap (op0, op1);
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if (TREE_CODE_CLASS (code) == tcc_comparison)
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code = swap_tree_comparison (code);
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}
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code_helper rcode;
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tree ops[3] = {};
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if (!gimple_simplify (&rcode, ops, seq, valueize,
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code, type, op0, op1))
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return NULL_TREE;
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return maybe_push_res_to_seq (rcode, type, ops, seq);
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}
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/* Ternary ops. */
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tree
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gimple_simplify (enum tree_code code, tree type,
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tree op0, tree op1, tree op2,
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gimple_seq *seq, tree (*valueize)(tree))
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{
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if (constant_for_folding (op0) && constant_for_folding (op1)
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&& constant_for_folding (op2))
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{
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tree res = fold_ternary/*_to_constant */ (code, type, op0, op1, op2);
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if (res != NULL_TREE
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&& CONSTANT_CLASS_P (res))
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return res;
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}
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/* Canonicalize operand order both for matching and fallback stmt
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generation. */
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if (commutative_ternary_tree_code (code)
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&& tree_swap_operands_p (op0, op1, false))
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std::swap (op0, op1);
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code_helper rcode;
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tree ops[3] = {};
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if (!gimple_simplify (&rcode, ops, seq, valueize,
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code, type, op0, op1, op2))
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return NULL_TREE;
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return maybe_push_res_to_seq (rcode, type, ops, seq);
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}
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/* Builtin function with one argument. */
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tree
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gimple_simplify (enum built_in_function fn, tree type,
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tree arg0,
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gimple_seq *seq, tree (*valueize)(tree))
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{
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if (constant_for_folding (arg0))
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{
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tree res = fold_const_call (as_combined_fn (fn), type, arg0);
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if (res && CONSTANT_CLASS_P (res))
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return res;
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}
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code_helper rcode;
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tree ops[3] = {};
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if (!gimple_simplify (&rcode, ops, seq, valueize,
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as_combined_fn (fn), type, arg0))
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return NULL_TREE;
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return maybe_push_res_to_seq (rcode, type, ops, seq);
|
|
}
|
|
|
|
/* Builtin function with two arguments. */
|
|
|
|
tree
|
|
gimple_simplify (enum built_in_function fn, tree type,
|
|
tree arg0, tree arg1,
|
|
gimple_seq *seq, tree (*valueize)(tree))
|
|
{
|
|
if (constant_for_folding (arg0)
|
|
&& constant_for_folding (arg1))
|
|
{
|
|
tree res = fold_const_call (as_combined_fn (fn), type, arg0, arg1);
|
|
if (res && CONSTANT_CLASS_P (res))
|
|
return res;
|
|
}
|
|
|
|
code_helper rcode;
|
|
tree ops[3] = {};
|
|
if (!gimple_simplify (&rcode, ops, seq, valueize,
|
|
as_combined_fn (fn), type, arg0, arg1))
|
|
return NULL_TREE;
|
|
return maybe_push_res_to_seq (rcode, type, ops, seq);
|
|
}
|
|
|
|
/* Builtin function with three arguments. */
|
|
|
|
tree
|
|
gimple_simplify (enum built_in_function fn, tree type,
|
|
tree arg0, tree arg1, tree arg2,
|
|
gimple_seq *seq, tree (*valueize)(tree))
|
|
{
|
|
if (constant_for_folding (arg0)
|
|
&& constant_for_folding (arg1)
|
|
&& constant_for_folding (arg2))
|
|
{
|
|
tree res = fold_const_call (as_combined_fn (fn), type, arg0, arg1, arg2);
|
|
if (res && CONSTANT_CLASS_P (res))
|
|
return res;
|
|
}
|
|
|
|
code_helper rcode;
|
|
tree ops[3] = {};
|
|
if (!gimple_simplify (&rcode, ops, seq, valueize,
|
|
as_combined_fn (fn), type, arg0, arg1, arg2))
|
|
return NULL_TREE;
|
|
return maybe_push_res_to_seq (rcode, type, ops, seq);
|
|
}
|
|
|
|
/* Helper for gimple_simplify valueizing OP using VALUEIZE and setting
|
|
VALUEIZED to true if valueization changed OP. */
|
|
|
|
static inline tree
|
|
do_valueize (tree op, tree (*valueize)(tree), bool &valueized)
|
|
{
|
|
if (valueize && TREE_CODE (op) == SSA_NAME)
|
|
{
|
|
tree tem = valueize (op);
|
|
if (tem && tem != op)
|
|
{
|
|
op = tem;
|
|
valueized = true;
|
|
}
|
|
}
|
|
return op;
|
|
}
|
|
|
|
/* The main STMT based simplification entry. It is used by the fold_stmt
|
|
and the fold_stmt_to_constant APIs. */
|
|
|
|
bool
|
|
gimple_simplify (gimple *stmt,
|
|
code_helper *rcode, tree *ops,
|
|
gimple_seq *seq,
|
|
tree (*valueize)(tree), tree (*top_valueize)(tree))
|
|
{
|
|
switch (gimple_code (stmt))
|
|
{
|
|
case GIMPLE_ASSIGN:
|
|
{
|
|
enum tree_code code = gimple_assign_rhs_code (stmt);
|
|
tree type = TREE_TYPE (gimple_assign_lhs (stmt));
|
|
switch (gimple_assign_rhs_class (stmt))
|
|
{
|
|
case GIMPLE_SINGLE_RHS:
|
|
if (code == REALPART_EXPR
|
|
|| code == IMAGPART_EXPR
|
|
|| code == VIEW_CONVERT_EXPR)
|
|
{
|
|
tree op0 = TREE_OPERAND (gimple_assign_rhs1 (stmt), 0);
|
|
bool valueized = false;
|
|
op0 = do_valueize (op0, top_valueize, valueized);
|
|
*rcode = code;
|
|
ops[0] = op0;
|
|
return (gimple_resimplify1 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
}
|
|
else if (code == BIT_FIELD_REF)
|
|
{
|
|
tree rhs1 = gimple_assign_rhs1 (stmt);
|
|
tree op0 = TREE_OPERAND (rhs1, 0);
|
|
bool valueized = false;
|
|
op0 = do_valueize (op0, top_valueize, valueized);
|
|
*rcode = code;
|
|
ops[0] = op0;
|
|
ops[1] = TREE_OPERAND (rhs1, 1);
|
|
ops[2] = TREE_OPERAND (rhs1, 2);
|
|
return (gimple_resimplify3 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
}
|
|
else if (code == SSA_NAME
|
|
&& top_valueize)
|
|
{
|
|
tree op0 = gimple_assign_rhs1 (stmt);
|
|
tree valueized = top_valueize (op0);
|
|
if (!valueized || op0 == valueized)
|
|
return false;
|
|
ops[0] = valueized;
|
|
*rcode = TREE_CODE (op0);
|
|
return true;
|
|
}
|
|
break;
|
|
case GIMPLE_UNARY_RHS:
|
|
{
|
|
tree rhs1 = gimple_assign_rhs1 (stmt);
|
|
bool valueized = false;
|
|
rhs1 = do_valueize (rhs1, top_valueize, valueized);
|
|
*rcode = code;
|
|
ops[0] = rhs1;
|
|
return (gimple_resimplify1 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
}
|
|
case GIMPLE_BINARY_RHS:
|
|
{
|
|
tree rhs1 = gimple_assign_rhs1 (stmt);
|
|
tree rhs2 = gimple_assign_rhs2 (stmt);
|
|
bool valueized = false;
|
|
rhs1 = do_valueize (rhs1, top_valueize, valueized);
|
|
rhs2 = do_valueize (rhs2, top_valueize, valueized);
|
|
*rcode = code;
|
|
ops[0] = rhs1;
|
|
ops[1] = rhs2;
|
|
return (gimple_resimplify2 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
}
|
|
case GIMPLE_TERNARY_RHS:
|
|
{
|
|
bool valueized = false;
|
|
tree rhs1 = gimple_assign_rhs1 (stmt);
|
|
/* If this is a [VEC_]COND_EXPR first try to simplify an
|
|
embedded GENERIC condition. */
|
|
if (code == COND_EXPR
|
|
|| code == VEC_COND_EXPR)
|
|
{
|
|
if (COMPARISON_CLASS_P (rhs1))
|
|
{
|
|
tree lhs = TREE_OPERAND (rhs1, 0);
|
|
tree rhs = TREE_OPERAND (rhs1, 1);
|
|
lhs = do_valueize (lhs, top_valueize, valueized);
|
|
rhs = do_valueize (rhs, top_valueize, valueized);
|
|
code_helper rcode2 = TREE_CODE (rhs1);
|
|
tree ops2[3] = {};
|
|
ops2[0] = lhs;
|
|
ops2[1] = rhs;
|
|
if ((gimple_resimplify2 (seq, &rcode2, TREE_TYPE (rhs1),
|
|
ops2, valueize)
|
|
|| valueized)
|
|
&& rcode2.is_tree_code ())
|
|
{
|
|
valueized = true;
|
|
if (TREE_CODE_CLASS ((enum tree_code)rcode2)
|
|
== tcc_comparison)
|
|
rhs1 = build2 (rcode2, TREE_TYPE (rhs1),
|
|
ops2[0], ops2[1]);
|
|
else if (rcode2 == SSA_NAME
|
|
|| rcode2 == INTEGER_CST
|
|
|| rcode2 == VECTOR_CST)
|
|
rhs1 = ops2[0];
|
|
else
|
|
valueized = false;
|
|
}
|
|
}
|
|
}
|
|
tree rhs2 = gimple_assign_rhs2 (stmt);
|
|
tree rhs3 = gimple_assign_rhs3 (stmt);
|
|
rhs1 = do_valueize (rhs1, top_valueize, valueized);
|
|
rhs2 = do_valueize (rhs2, top_valueize, valueized);
|
|
rhs3 = do_valueize (rhs3, top_valueize, valueized);
|
|
*rcode = code;
|
|
ops[0] = rhs1;
|
|
ops[1] = rhs2;
|
|
ops[2] = rhs3;
|
|
return (gimple_resimplify3 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
}
|
|
default:
|
|
gcc_unreachable ();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case GIMPLE_CALL:
|
|
/* ??? This way we can't simplify calls with side-effects. */
|
|
if (gimple_call_lhs (stmt) != NULL_TREE
|
|
&& gimple_call_num_args (stmt) >= 1
|
|
&& gimple_call_num_args (stmt) <= 3)
|
|
{
|
|
bool valueized = false;
|
|
if (gimple_call_internal_p (stmt))
|
|
*rcode = as_combined_fn (gimple_call_internal_fn (stmt));
|
|
else
|
|
{
|
|
tree fn = gimple_call_fn (stmt);
|
|
if (!fn)
|
|
return false;
|
|
|
|
fn = do_valueize (fn, top_valueize, valueized);
|
|
if (TREE_CODE (fn) != ADDR_EXPR
|
|
|| TREE_CODE (TREE_OPERAND (fn, 0)) != FUNCTION_DECL)
|
|
return false;
|
|
|
|
tree decl = TREE_OPERAND (fn, 0);
|
|
if (DECL_BUILT_IN_CLASS (decl) != BUILT_IN_NORMAL
|
|
|| !gimple_builtin_call_types_compatible_p (stmt, decl))
|
|
return false;
|
|
|
|
*rcode = as_combined_fn (DECL_FUNCTION_CODE (decl));
|
|
}
|
|
|
|
tree type = TREE_TYPE (gimple_call_lhs (stmt));
|
|
for (unsigned i = 0; i < gimple_call_num_args (stmt); ++i)
|
|
{
|
|
tree arg = gimple_call_arg (stmt, i);
|
|
ops[i] = do_valueize (arg, top_valueize, valueized);
|
|
}
|
|
switch (gimple_call_num_args (stmt))
|
|
{
|
|
case 1:
|
|
return (gimple_resimplify1 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
case 2:
|
|
return (gimple_resimplify2 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
case 3:
|
|
return (gimple_resimplify3 (seq, rcode, type, ops, valueize)
|
|
|| valueized);
|
|
default:
|
|
gcc_unreachable ();
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GIMPLE_COND:
|
|
{
|
|
tree lhs = gimple_cond_lhs (stmt);
|
|
tree rhs = gimple_cond_rhs (stmt);
|
|
bool valueized = false;
|
|
lhs = do_valueize (lhs, top_valueize, valueized);
|
|
rhs = do_valueize (rhs, top_valueize, valueized);
|
|
*rcode = gimple_cond_code (stmt);
|
|
ops[0] = lhs;
|
|
ops[1] = rhs;
|
|
return (gimple_resimplify2 (seq, rcode,
|
|
boolean_type_node, ops, valueize)
|
|
|| valueized);
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/* Helper for the autogenerated code, valueize OP. */
|
|
|
|
inline tree
|
|
do_valueize (tree (*valueize)(tree), tree op)
|
|
{
|
|
if (valueize && TREE_CODE (op) == SSA_NAME)
|
|
return valueize (op);
|
|
return op;
|
|
}
|
|
|
|
/* Routine to determine if the types T1 and T2 are effectively
|
|
the same for GIMPLE. If T1 or T2 is not a type, the test
|
|
applies to their TREE_TYPE. */
|
|
|
|
static inline bool
|
|
types_match (tree t1, tree t2)
|
|
{
|
|
if (!TYPE_P (t1))
|
|
t1 = TREE_TYPE (t1);
|
|
if (!TYPE_P (t2))
|
|
t2 = TREE_TYPE (t2);
|
|
|
|
return types_compatible_p (t1, t2);
|
|
}
|
|
|
|
/* Return if T has a single use. For GIMPLE, we also allow any
|
|
non-SSA_NAME (ie constants) and zero uses to cope with uses
|
|
that aren't linked up yet. */
|
|
|
|
static inline bool
|
|
single_use (tree t)
|
|
{
|
|
return TREE_CODE (t) != SSA_NAME || has_zero_uses (t) || has_single_use (t);
|
|
}
|
|
|
|
/* Return true if math operations should be canonicalized,
|
|
e.g. sqrt(sqrt(x)) -> pow(x, 0.25). */
|
|
|
|
static inline bool
|
|
canonicalize_math_p ()
|
|
{
|
|
return !cfun || (cfun->curr_properties & PROP_gimple_opt_math) == 0;
|
|
}
|