Update memdep to handle PartialAlias as MayAlias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121723 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemoryDependenceAnalysis.cpp b/lib/Analysis/MemoryDependenceAnalysis.cpp
index c833184..1cd7dec 100644
--- a/lib/Analysis/MemoryDependenceAnalysis.cpp
+++ b/lib/Analysis/MemoryDependenceAnalysis.cpp
@@ -291,7 +291,7 @@
continue;
// May-alias loads don't depend on each other without a dependence.
- if (isLoad && R == AliasAnalysis::MayAlias)
+ if (isLoad && R != AliasAnalysis::MustAlias)
continue;
// Stores don't alias loads from read-only memory.
@@ -323,9 +323,9 @@
if (R == AliasAnalysis::NoAlias)
continue;
- if (R == AliasAnalysis::MayAlias)
- return MemDepResult::getClobber(Inst);
- return MemDepResult::getDef(Inst);
+ if (R == AliasAnalysis::MustAlias)
+ return MemDepResult::getDef(Inst);
+ return MemDepResult::getClobber(Inst);
}
// If this is an allocation, and if we know that the accessed pointer is to