diff options
Diffstat (limited to 'llvm/lib/Analysis/LoopAccessAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/LoopAccessAnalysis.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/LoopAccessAnalysis.cpp b/llvm/lib/Analysis/LoopAccessAnalysis.cpp index 7adb25d..e27a9b1 100644 --- a/llvm/lib/Analysis/LoopAccessAnalysis.cpp +++ b/llvm/lib/Analysis/LoopAccessAnalysis.cpp @@ -2982,6 +2982,10 @@ void LoopAccessInfo::collectStridedAccess(Value *MemAccess) { if (!StrideExpr) return; + if (auto *Unknown = dyn_cast<SCEVUnknown>(StrideExpr)) + if (isa<UndefValue>(Unknown->getValue())) + return; + LLVM_DEBUG(dbgs() << "LAA: Found a strided access that is a candidate for " "versioning:"); LLVM_DEBUG(dbgs() << " Ptr: " << *Ptr << " Stride: " << *StrideExpr << "\n"); |