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-rw-r--r--lib/Transforms/Scalar/CorrelatedValuePropagation.cpp9
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp b/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
index 44e72e2..287c0a5 100644
--- a/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
+++ b/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
@@ -16,6 +16,7 @@
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Pass.h"
+#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Analysis/LazyValueInfo.h"
#include "llvm/Support/CFG.h"
#include "llvm/Transforms/Utils/Local.h"
@@ -96,13 +97,13 @@ bool CorrelatedValuePropagation::processPHI(PHINode *P) {
P->setIncomingValue(i, C);
Changed = true;
}
-
- if (Value *ConstVal = P->hasConstantValue()) {
- P->replaceAllUsesWith(ConstVal);
+
+ if (Value *V = SimplifyInstruction(P)) {
+ P->replaceAllUsesWith(V);
P->eraseFromParent();
Changed = true;
}
-
+
++NumPhis;
return Changed;