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-rw-r--r--llvm/lib/Transforms/Scalar/LoopUnswitch.cpp3
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
index d55fad0f1fa..8c260c7c965 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -487,8 +487,7 @@ bool LoopUnswitch::processCurrentLoop() {
LLVMContext &Context = loopHeader->getContext();
- // Probably we reach the quota of branches for this loop. If so
- // stop unswitching.
+ // Analyze loop cost, and stop unswitching if loop content can not be duplicated.
if (!BranchesInfo.countLoop(
currentLoop, getAnalysis<TargetTransformInfoWrapperPass>().getTTI(
*currentLoop->getHeader()->getParent()),
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