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| author | Richard Biener <rguenther@suse.de> | 2014-10-30 13:13:35 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-10-30 13:13:35 +0000 |
| commit | 36a60e48f4eac678cdcf0c59c0f01b9f58c7d900 (patch) | |
| tree | 503ff6868c680195720861d2ad6beb4789e69889 /gcc/fold-const.c | |
| parent | 6327f612fd6631094742bdb4e4999a48bd376382 (diff) | |
| download | gcc-36a60e48f4eac678cdcf0c59c0f01b9f58c7d900.zip gcc-36a60e48f4eac678cdcf0c59c0f01b9f58c7d900.tar.gz gcc-36a60e48f4eac678cdcf0c59c0f01b9f58c7d900.tar.bz2 | |
match.pd: Implement more patterns that simplify to a single value.
2014-10-30 Richard Biener <rguenther@suse.de>
* match.pd: Implement more patterns that simplify to a single value.
* fold-const.c (fold_binary_loc): Remove them here.
* tree-ssa-forwprop.c (simplify_bitwise_binary): Likewise.
(fwprop_ssa_val): Remove restriction on single uses.
From-SVN: r216933
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 9b9754d..6258295 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -11089,9 +11089,6 @@ fold_binary_loc (location_t loc, case BIT_IOR_EXPR: bit_ior: - if (operand_equal_p (arg0, arg1, 0)) - return non_lvalue_loc (loc, fold_convert_loc (loc, type, arg0)); - /* ~X | X is -1. */ if (TREE_CODE (arg0) == BIT_NOT_EXPR && operand_equal_p (TREE_OPERAND (arg0, 0), arg1, 0)) @@ -11227,9 +11224,6 @@ fold_binary_loc (location_t loc, goto bit_rotate; case BIT_XOR_EXPR: - if (integer_all_onesp (arg1)) - return fold_build1_loc (loc, BIT_NOT_EXPR, type, op0); - /* ~X ^ X is -1. */ if (TREE_CODE (arg0) == BIT_NOT_EXPR && operand_equal_p (TREE_OPERAND (arg0, 0), arg1, 0)) @@ -11384,11 +11378,6 @@ fold_binary_loc (location_t loc, goto bit_rotate; case BIT_AND_EXPR: - if (integer_all_onesp (arg1)) - return non_lvalue_loc (loc, fold_convert_loc (loc, type, arg0)); - if (operand_equal_p (arg0, arg1, 0)) - return non_lvalue_loc (loc, fold_convert_loc (loc, type, arg0)); - /* ~X & X, (X == 0) & X, and !X & X are always zero. */ if ((TREE_CODE (arg0) == BIT_NOT_EXPR || TREE_CODE (arg0) == TRUTH_NOT_EXPR |