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| author | Roger Sayle <roger@eyesopen.com> | 2006-12-31 16:17:49 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2006-12-31 16:17:49 +0000 |
| commit | 870aa1ebe0d3e05912f763ece1ed4491282d34e2 (patch) | |
| tree | b1cf895f653525f285670f935e58e7beff2a7eef /gcc/cgraphunit.c | |
| parent | 7c2da05e604c27549afadf4df26c679aead5f414 (diff) | |
| download | gcc-870aa1ebe0d3e05912f763ece1ed4491282d34e2.zip gcc-870aa1ebe0d3e05912f763ece1ed4491282d34e2.tar.gz gcc-870aa1ebe0d3e05912f763ece1ed4491282d34e2.tar.bz2 | |
re PR middle-end/30322 (((-i-1) + i) +1) is turned into ~i + (i+1) and never into 0 on the tree level)
PR middle-end/30322
* fold-const.c (fold_binary): Fold X + ~X and ~X + X into -1 when
we don't care about trapping overflow. Only convert -A - 1 into ~A
when we don't care about trapping overflow.
* gcc.dg/fold-plusnot-1.c: New test case.
From-SVN: r120300
Diffstat (limited to 'gcc/cgraphunit.c')
0 files changed, 0 insertions, 0 deletions