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-rw-r--r--llvm/lib/Transforms/Scalar/IndVarSimplify.cpp7
1 files changed, 2 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
index 4f939b21a2e..0566a1558b0 100644
--- a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -2477,11 +2477,8 @@ linearFunctionTestReplace(Loop *L, BasicBlock *ExitingBB,
Count = Count.zext(CmpIndVarSize);
if (UsePostInc)
++Count;
- APInt NewLimit;
- if (cast<SCEVConstant>(ARStep)->getValue()->isNegative())
- NewLimit = Start - Count;
- else
- NewLimit = Start + Count;
+ assert(cast<SCEVConstant>(ARStep)->getValue()->isOne());
+ APInt NewLimit = Start + Count;
ExitCnt = ConstantInt::get(CmpIndVar->getType(), NewLimit);
} else {
// We try to extend trip count first. If that doesn't work we truncate IV.
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