diff options
Diffstat (limited to 'llvm/lib/Analysis/AliasAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/AliasAnalysis.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/AliasAnalysis.cpp b/llvm/lib/Analysis/AliasAnalysis.cpp index ab5f814fb39..f931b6fc652 100644 --- a/llvm/lib/Analysis/AliasAnalysis.cpp +++ b/llvm/lib/Analysis/AliasAnalysis.cpp @@ -111,6 +111,9 @@ ModRefInfo AAResults::getModRefInfo(Instruction *I, ImmutableCallSite Call) { if (auto CS = ImmutableCallSite(I)) { // Check if the two calls modify the same memory return getModRefInfo(CS, Call); + } else if (I->isFenceLike()) { + // If this is a fence, just return MRI_ModRef. + return MRI_ModRef; } else { // Otherwise, check if the call modifies or references the // location this memory access defines. The best we can say |
