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| author | Andrew MacLeod <amacleod@redhat.com> | 2021-06-30 14:15:53 -0400 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2021-07-02 11:34:53 -0400 |
| commit | 84f7bab89279ca1234fef88929c74caeda8cb55e (patch) | |
| tree | 708a82e60c51b389b97afe85ae048da09d0ba3e3 /gcc/tree-diagnostic.c | |
| parent | 18d0fad77b580d1ac64ed04d94fd3c9795687b91 (diff) | |
| download | gcc-84f7bab89279ca1234fef88929c74caeda8cb55e.zip gcc-84f7bab89279ca1234fef88929c74caeda8cb55e.tar.gz gcc-84f7bab89279ca1234fef88929c74caeda8cb55e.tar.bz2 | |
Fix build_gt and build_lt for signed 1 bit values.
Signed 1 bit values have a range of [-1, 0] but neither (0 - 1) nor (-1 + 1)
can be represented. For signed values, add or subtract -1 as appropriate.
PR tree-optimization/101223
gcc/
* range-op.cc (build_lt): Add -1 for signed values.
(built_gt): Subtract -1 for signed values.
gcc/testsuite/
* gcc.dg/pr101223.c: New.
Diffstat (limited to 'gcc/tree-diagnostic.c')
0 files changed, 0 insertions, 0 deletions