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| author | Roger Sayle <roger@eyesopen.com> | 2006-02-27 03:22:18 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2006-02-27 03:22:18 +0000 |
| commit | 5881ad5d9dc40dbd97cb7dc4b9d4819c27bdd533 (patch) | |
| tree | 751d572c91141ad30022081f8277b791e0019f07 /gcc/c-common.c | |
| parent | 53f1b560dbbc8485efa92063ef1e953604b40469 (diff) | |
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fold-const.c (fold_binary): Fold (~X & C) eq/ne 0 as (X & C) ne/eq 0, where C is a single bit, i.e.
* fold-const.c (fold_binary) <EQ_EXPR>: Fold (~X & C) eq/ne 0 as
(X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
as (X & C) ne/eq 0.
* gcc.dg/fold-eqandnot-1.c: New test case.
From-SVN: r111471
Diffstat (limited to 'gcc/c-common.c')
0 files changed, 0 insertions, 0 deletions