SLPVectorizer: Use vector type for vectorized memory operations

No test case, because with the current cost model we don't see a difference.
An upcoming ARM memory cost model change will expose and test this bug.

radar://15332579

llvm-svn: 193572

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 4d82bc428db..012521ad014 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -1023,14 +1023,14 @@ int BoUpSLP::getEntryCost(TreeEntry *E) {
       // Cost of wide load - cost of scalar loads.
       int ScalarLdCost = VecTy->getNumElements() *
       TTI->getMemoryOpCost(Instruction::Load, ScalarTy, 1, 0);
-      int VecLdCost = TTI->getMemoryOpCost(Instruction::Load, ScalarTy, 1, 0);
+      int VecLdCost = TTI->getMemoryOpCost(Instruction::Load, VecTy, 1, 0);
       return VecLdCost - ScalarLdCost;
     }
     case Instruction::Store: {
       // We know that we can merge the stores. Calculate the cost.
       int ScalarStCost = VecTy->getNumElements() *
       TTI->getMemoryOpCost(Instruction::Store, ScalarTy, 1, 0);
-      int VecStCost = TTI->getMemoryOpCost(Instruction::Store, ScalarTy, 1, 0);
+      int VecStCost = TTI->getMemoryOpCost(Instruction::Store, VecTy, 1, 0);
       return VecStCost - ScalarStCost;
     }
     default: