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| author | Yingwei Zheng <dtcxzyw2333@gmail.com> | 2025-03-17 13:59:16 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-03-17 13:59:16 +0800 |
| commit | c5a491e9ea22014b65664b6e09134b4f055933e2 (patch) | |
| tree | 5be472a74cf51e89eb7c817f3cfbc1cee29605ce /llvm/lib/CodeGen/ModuloSchedule.cpp | |
| parent | baab447aadd59b34bd838584b16d11475329853f (diff) | |
| download | llvm-c5a491e9ea22014b65664b6e09134b4f055933e2.zip llvm-c5a491e9ea22014b65664b6e09134b4f055933e2.tar.gz llvm-c5a491e9ea22014b65664b6e09134b4f055933e2.tar.bz2 | |
[SCEV] Check whether the start is non-zero in `ScalarEvolution::howFarToZero` (#131522)
https://github.com/llvm/llvm-project/pull/94525 assumes that the loop
will be infinite when the stride is zero. However, it doesn't hold when
the start value of addrec is also zero.
Closes https://github.com/llvm/llvm-project/issues/131465.
Diffstat (limited to 'llvm/lib/CodeGen/ModuloSchedule.cpp')
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