[llvm] 2e5940c - Correctly report modified status for LoopSimplify

[via llvm-commits]

Author: serge-sans-paille
Date: 2020-06-05T15:46:28+02:00
New Revision: 2e5940cf291517b3f7b31441f13812afa02a7f9b

URL: https://github.com/llvm/llvm-project/commit/2e5940cf291517b3f7b31441f13812afa02a7f9b
DIFF: https://github.com/llvm/llvm-project/commit/2e5940cf291517b3f7b31441f13812afa02a7f9b.diff

LOG: Correctly report modified status for LoopSimplify

Differential Revision: https://reviews.llvm.org/D81235

Added: 
    

Modified: 
    llvm/lib/Transforms/Utils/LoopSimplify.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Utils/LoopSimplify.cpp b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
index 14c6950508f0..c33f36f70a88 100644
--- a/llvm/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
@@ -619,6 +619,7 @@ static bool simplifyOneLoop(Loop *L, SmallVectorImpl<Loop *> &Worklist,
       if (!PreserveLCSSA || LI->replacementPreservesLCSSAForm(PN, V)) {
         PN->replaceAllUsesWith(V);
         PN->eraseFromParent();
+        Changed = true;
       }
     }