diff options
Diffstat (limited to 'lib/Transforms')
-rw-r--r-- | lib/Transforms/Scalar/LICM.cpp | 10 |
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; } |