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| author | Jakub Jelinek <jakub@redhat.com> | 2014-07-08 11:39:57 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2014-07-08 11:39:57 +0200 |
| commit | b48e3948be3320071d3cd3a0894b04082eef8643 (patch) | |
| tree | dee539372edbfbfbff7ec1bc9dc933297b8b1367 /gcc/tree-ssa-loop-ch.c | |
| parent | a59d8e8eb67086eb6df936074ef6d8fb4834bcc2 (diff) | |
| download | gcc-b48e3948be3320071d3cd3a0894b04082eef8643.zip gcc-b48e3948be3320071d3cd3a0894b04082eef8643.tar.gz gcc-b48e3948be3320071d3cd3a0894b04082eef8643.tar.bz2 | |
re PR middle-end/61725 (__builtin_ffs(0) leads to wrong code generation)
PR tree-optimization/61725
* tree-vrp.c (extract_range_basic): Don't assume vr0 is unsigned
range, use range_includes_zerop_p instead of integer_zerop on
vr0->min, only use log2 of max if min is not negative.
* gcc.dg/tree-ssa/vrp93.c: New test.
* gcc.c-torture/execute/pr61725.c: New test.
From-SVN: r212353
Diffstat (limited to 'gcc/tree-ssa-loop-ch.c')
0 files changed, 0 insertions, 0 deletions