[PATCH] D13738: [LoopUnswitch] Correct misleading comments.

[Chen Li via llvm-commits]

chenli created this revision.
chenli added a reviewer: reames.
chenli added a subscriber: llvm-commits.

http://reviews.llvm.org/D13738

Files:
  lib/Transforms/Scalar/LoopUnswitch.cpp

Index: lib/Transforms/Scalar/LoopUnswitch.cpp
===================================================================
--- lib/Transforms/Scalar/LoopUnswitch.cpp
+++ lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -487,8 +487,7 @@
 
   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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