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| author | Vitaly Buka <vitalybuka@google.com> | 2022-01-07 10:36:47 -0800 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2022-01-07 15:21:22 -0800 |
| commit | 5c46c1c23abb4a01f7f40bfcb8851cb893739e14 (patch) | |
| tree | 7ab6e44a5150977976ab7c238c069f6437811926 /llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp | |
| parent | bd9ae596d8635e36391be22f7ed74f77fb2d0371 (diff) | |
| download | llvm-5c46c1c23abb4a01f7f40bfcb8851cb893739e14.zip llvm-5c46c1c23abb4a01f7f40bfcb8851cb893739e14.tar.gz llvm-5c46c1c23abb4a01f7f40bfcb8851cb893739e14.tar.bz2 | |
Initialize output parameter
Or code like this have UB passing uninitialized CmpValue:
```
int64_t CmpMask, CmpValue;
if (!TII->analyzeCompare(MI, SrcReg, SrcReg2, CmpMask, CmpValue))
return false;
if (TII->optimizeCompareInstr(MI, SrcReg, SrcReg2, CmpMask, CmpValue, MRI)) {
```
Detected by msan with:
-Xclang -enable-noundef-analysis -mllvm -msan-eager-checks=1
Differential Revision: https://reviews.llvm.org/D116831
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp')
0 files changed, 0 insertions, 0 deletions