| commit | 1344b65c90507e2368a3d0678df9f179e8890665 | |
| author | Daniil Suchkov <suc-daniil@yandex.ru> | |
| Tue, 31 Oct 2023 18:43:57 +0000 (31 11:43 -0700) | ||
| committer | GitHub <noreply@github.com> | |
| Tue, 31 Oct 2023 18:43:57 +0000 (31 11:43 -0700) | ||
| tree | f5b59d527cf0a3fa897a855e2d1ea7030744ed94 | treesnapshot (tar.gz zip) |
| parent | f706411f71a29bc8bb6c04b21958fa3a0d17fd99 | commitdiff |
[SCEV] Fix incorrect NUW inference (#70521)
This patch fixes a miscompile in LSR caused by incorrect inference of
NUW flag for AddRec: we shouldn't infer no-wrap flags based on a
comparison which doesn't fully control the loop exit.
This patch fixes a miscompile in LSR caused by incorrect inference of
NUW flag for AddRec: we shouldn't infer no-wrap flags based on a
comparison which doesn't fully control the loop exit.
| llvm/lib/Analysis/ScalarEvolution.cpp | diffblobblamehistory | |
| llvm/test/Transforms/LoopStrengthReduce/scev-incorrect-nuw-inference.ll | diffblobblamehistory |