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| author | Volodymyr Vasylkun <vvmposeydon@gmail.com> | 2024-08-19 13:02:29 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-08-19 13:02:29 +0100 |
| commit | abf69a167bbc99054871e3f9cc8810bbebcb6747 (patch) | |
| tree | b1dd7c1972966868810ccb07811d025f8bd52ce7 /llvm/unittests/Support/MathExtrasTest.cpp | |
| parent | b8dccb7d56c7e32b549c00a094d1b6ac32a01328 (diff) | |
| download | llvm-abf69a167bbc99054871e3f9cc8810bbebcb6747.zip llvm-abf69a167bbc99054871e3f9cc8810bbebcb6747.tar.gz llvm-abf69a167bbc99054871e3f9cc8810bbebcb6747.tar.bz2 | |
[InstCombine] Fold `(x < y) ? -1 : zext(x != y)` into `u/scmp(x,y)` (#101049)
This patch adds the aforementioned fold to InstCombine. This pattern is
produced after naive implementations of 3-way comparison in high-level
languages are transformed into LLVM IR and then optimized.
Proofs: https://alive2.llvm.org/ce/z/w4QLq_
Diffstat (limited to 'llvm/unittests/Support/MathExtrasTest.cpp')
0 files changed, 0 insertions, 0 deletions