[llvm] 38ec33d - [LSR] Update outdated comment

[eop Chen via llvm-commits]

Author: eop Chen
Date: 2022-04-16T12:11:15-07:00
New Revision: 38ec33d6b9cf7efd6bef5bc238ac32d7e0ffaf39

URL: https://github.com/llvm/llvm-project/commit/38ec33d6b9cf7efd6bef5bc238ac32d7e0ffaf39
DIFF: https://github.com/llvm/llvm-project/commit/38ec33d6b9cf7efd6bef5bc238ac32d7e0ffaf39.diff

LOG: [LSR] Update outdated comment

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index d1e03292cb82b..c88b6ecdef93d 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -141,10 +141,7 @@ static const unsigned MaxIVUsers = 200;
 /// the salvaging is not too expensive for the compiler.
 static const unsigned MaxSCEVSalvageExpressionSize = 64;
 
-// Temporary flag to cleanup congruent phis after LSR phi expansion.
-// It's currently disabled until we can determine whether it's truly useful or
-// not. The flag should be removed after the v3.0 release.
-// This is now needed for ivchains.
+// Cleanup congruent phis after LSR phi expansion.
 static cl::opt<bool> EnablePhiElim(
   "enable-lsr-phielim", cl::Hidden, cl::init(true),
   cl::desc("Enable LSR phi elimination"));