| commit | e08a39b3180bc329be5a061005a6edb90618d170 | |
| author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Mon, 27 Feb 2006 03:22:18 +0000 (27 03:22 +0000) | ||
| committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Mon, 27 Feb 2006 03:22:18 +0000 (27 03:22 +0000) | ||
| tree | 751d572c91141ad30022081f8277b791e0019f07 | treesnapshot (tar.gz zip) |
| parent | 466fed6e96e98563cfc6e4237a6c9426ce7e83c5 | commitdiff |
* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111471 138bc75d-0d04-0410-961f-82ee72b054a4
(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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111471 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/fold-const.c | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/fold-eqandnot-1.c | [new file with mode: 0644] | blob |