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-rw-r--r--lib/Transforms/Scalar/LICM.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp
index 534a073abe..334ede39d9 100644
--- a/lib/Transforms/Scalar/LICM.cpp
+++ b/lib/Transforms/Scalar/LICM.cpp
@@ -487,9 +487,15 @@ void LICM::findPromotableValuesInLoop(
bool PointerOk = true;
for (std::set<Value*>::const_iterator I =CurLBI->LoadedPointers.begin(),
- E = CurLBI->LoadedPointers.end(); I != E; ++I)
- if (AA->alias(V, ~0, *I, ~0) == AliasAnalysis::MayAlias) {
+ E = CurLBI->LoadedPointers.end(); PointerOk && I != E; ++I)
+ switch (AA->alias(V, ~0, *I, ~0)) {
+ case AliasAnalysis::MustAlias:
+ if (V->getType() != (*I)->getType())
+ PointerOk = false;
+ break;
+ case AliasAnalysis::MayAlias:
PointerOk = false;
+ case AliasAnalysis::NoAlias:
break;
}