If a value is incoming from outside the loop then the value does not need remapping and the value is never tracked through LastValueMap.

llvm-svn: 43728

1 files changed, 0 insertions, 3 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopUnroll.cpp b/llvm/lib/Transforms/Scalar/LoopUnroll.cpp
index 25a4c4a79b5..d518e3a7559 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnroll.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnroll.cpp
@@ -370,9 +370,6 @@ bool LoopUnroll::unrollLoop(Loop *L, unsigned Count, unsigned Threshold) {
           if (isa<PHINode>(UseInst) && !L->contains(UseInst->getParent())) {
             PHINode *phi = cast<PHINode>(UseInst);
             Value *Incoming = phi->getIncomingValueForBlock(*BB);
-            if (isa<Instruction>(Incoming))
-              Incoming = LastValueMap[Incoming];
-          
             phi->addIncoming(Incoming, New);
           }
         }