[llvm] c292fba - [MemorySSA] Update phi map with replacement value.

[Alina Sbirlea via llvm-commits]

Author: Alina Sbirlea
Date: 2020-09-01T11:56:40-07:00
New Revision: c292fba46fc2919c5310c07911e3650d2b24cf28

URL: https://github.com/llvm/llvm-project/commit/c292fba46fc2919c5310c07911e3650d2b24cf28
DIFF: https://github.com/llvm/llvm-project/commit/c292fba46fc2919c5310c07911e3650d2b24cf28.diff

LOG: [MemorySSA] Update phi map with replacement value.

Added: 
    

Modified: 
    llvm/lib/Analysis/MemorySSAUpdater.cpp

Removed: 
    


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diff  --git a/llvm/lib/Analysis/MemorySSAUpdater.cpp b/llvm/lib/Analysis/MemorySSAUpdater.cpp
index 671d9e60ab7a..19f434f82cc6 100644
--- a/llvm/lib/Analysis/MemorySSAUpdater.cpp
+++ b/llvm/lib/Analysis/MemorySSAUpdater.cpp
@@ -713,8 +713,8 @@ void MemorySSAUpdater::updateForClonedLoop(const LoopBlocksRPO &LoopBlocks,
           NewPhi->addIncoming(IncPhi, IncBB);
       }
     }
-    if (onlySingleValue(NewPhi)) {
-      MPhiMap[Phi] = nullptr;
+    if (auto *SingleAccess = onlySingleValue(NewPhi)) {
+      MPhiMap[Phi] = SingleAccess;
       removeMemoryAccess(NewPhi);
     }
   };