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-rw-r--r--llvm/lib/Transforms/Vectorize/LoopVectorize.cpp8
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 30f739934bb..87ce0194dad 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -3586,8 +3586,12 @@ void InnerLoopVectorizer::fixupIVUsers(PHINode *OrigPhi,
IRBuilder<> B(MiddleBlock->getTerminator());
Value *CountMinusOne = B.CreateSub(
CountRoundDown, ConstantInt::get(CountRoundDown->getType(), 1));
- Value *CMO = B.CreateSExtOrTrunc(CountMinusOne, II.getStep()->getType(),
- "cast.cmo");
+ Value *CMO =
+ !II.getStep()->getType()->isIntegerTy()
+ ? B.CreateCast(Instruction::SIToFP, CountMinusOne,
+ II.getStep()->getType())
+ : B.CreateSExtOrTrunc(CountMinusOne, II.getStep()->getType());
+ CMO->setName("cast.cmo");
Value *Escape = II.transform(B, CMO, PSE.getSE(), DL);
Escape->setName("ind.escape");
MissingVals[UI] = Escape;
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