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| author | Marek Polacek <polacek@redhat.com> | 2015-06-30 09:02:00 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2015-06-30 09:02:00 +0000 |
| commit | a4398a300ed00d842f9786d529a7a4b0fce6e634 (patch) | |
| tree | 58346bd90053e6a614e0e37ed3fed21fc9b01ece /gcc/fold-const.c | |
| parent | 582554e3bc1509b6ddc407004f97e3f756bcedf5 (diff) | |
| download | gcc-a4398a300ed00d842f9786d529a7a4b0fce6e634.zip gcc-a4398a300ed00d842f9786d529a7a4b0fce6e634.tar.gz gcc-a4398a300ed00d842f9786d529a7a4b0fce6e634.tar.bz2 | |
fold-const.c (fold_binary_loc): Move ~X | X folding ...
* fold-const.c (fold_binary_loc): Move ~X | X folding ...
* match.pd: ... here.
* gcc.dg/fold-ior-2.c: New test.
From-SVN: r225164
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 5cdb6d1..f330d78 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -10922,24 +10922,6 @@ fold_binary_loc (location_t loc, case BIT_IOR_EXPR: bit_ior: - /* ~X | X is -1. */ - if (TREE_CODE (arg0) == BIT_NOT_EXPR - && operand_equal_p (TREE_OPERAND (arg0, 0), arg1, 0)) - { - t1 = build_zero_cst (type); - t1 = fold_unary_loc (loc, BIT_NOT_EXPR, type, t1); - return omit_one_operand_loc (loc, type, t1, arg1); - } - - /* X | ~X is -1. */ - if (TREE_CODE (arg1) == BIT_NOT_EXPR - && operand_equal_p (arg0, TREE_OPERAND (arg1, 0), 0)) - { - t1 = build_zero_cst (type); - t1 = fold_unary_loc (loc, BIT_NOT_EXPR, type, t1); - return omit_one_operand_loc (loc, type, t1, arg0); - } - /* Canonicalize (X & C1) | C2. */ if (TREE_CODE (arg0) == BIT_AND_EXPR && TREE_CODE (arg1) == INTEGER_CST |