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-rw-r--r--llvm/lib/Transforms/Scalar/LoopPredication.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopPredication.cpp b/llvm/lib/Transforms/Scalar/LoopPredication.cpp
index d3cec7568b6..4ee3d0079c7 100644
--- a/llvm/lib/Transforms/Scalar/LoopPredication.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopPredication.cpp
@@ -653,6 +653,11 @@ static void normalizePredicate(ScalarEvolution *SE, Loop *L,
RC.IV->getStepRecurrence(*SE)->isOne() &&
SE->isKnownPredicate(ICmpInst::ICMP_ULE, RC.IV->getStart(), RC.Limit))
RC.Pred = ICmpInst::ICMP_ULT;
+ if (RC.Pred == ICmpInst::ICMP_EQ &&
+ RC.IV->getStepRecurrence(*SE)->isOne() &&
+ SE->isKnownPredicate(ICmpInst::ICMP_ULE, RC.IV->getStart(), RC.Limit))
+ RC.Pred = ICmpInst::ICMP_UGE;
+
}
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