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-rw-r--r--llvm/lib/Analysis/BasicAliasAnalysis.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index bf1b689587c..3e634240901 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -703,6 +703,8 @@ BasicAliasAnalysis::getModRefInfo(ImmutableCallSite CS,
if (isNoAlias(Location(Dest, Len), Loc))
return NoModRef;
}
+ // We know that memset doesn't load anything.
+ Min = Mod;
break;
case Intrinsic::atomic_cmp_swap:
case Intrinsic::atomic_swap:
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