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| author | Mel Chen <mel.chen@sifive.com> | 2025-01-13 20:58:38 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-13 20:58:38 +0800 |
| commit | 3397950f2d21426c7520d114a12588128906a897 (patch) | |
| tree | b171473035ace78c608ea335c229481f0b96fd5d /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 41a94de75caacb979070ec7a010dfe3c4e9f116f (diff) | |
| download | llvm-3397950f2d21426c7520d114a12588128906a897.zip llvm-3397950f2d21426c7520d114a12588128906a897.tar.gz llvm-3397950f2d21426c7520d114a12588128906a897.tar.bz2 | |
[LV] Fix FindLastIV reduction for epilogue vectorization. (#120395)
Following 0e528ac404e13ed2d952a2d83aaf8383293c851e, this patch adjusts
the resume value of VPReductionPHIRecipe for FindLastIV reductions.
Replacing the resume value with:
ResumeValue = ResumeValue == StartValue ? SentinelValue : ResumeValue;
This addressed the correctness issue when the start value might not be
less than the minimum value of a monotonically increasing induction
variable.
Thanks Florian Hahn for the help.
---------
Co-authored-by: Florian Hahn <flo@fhahn.com>
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions