[llvm] [AA/MSSA/LICM/Sink] Fix correctness and optimize better around atomics (PR #210568)

via llvm-commits llvm-commits at lists.llvm.org
Sat Jul 18 20:30:53 PDT 2026


github-actions[bot] wrote:

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<summary>
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/include/llvm/Analysis/MemorySSA.h llvm/lib/Analysis/AliasAnalysis.cpp llvm/lib/Analysis/MemorySSA.cpp llvm/lib/Transforms/Scalar/LICM.cpp --diff_from_common_commit
``````````

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in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Analysis/MemorySSA.cpp b/llvm/lib/Analysis/MemorySSA.cpp
index f24f68a3c..8fb037b14 100644
--- a/llvm/lib/Analysis/MemorySSA.cpp
+++ b/llvm/lib/Analysis/MemorySSA.cpp
@@ -1084,8 +1084,9 @@ public:
     return getClobberingMemoryAccess(MA, Loc, BAA, UpwardWalkLimit);
   }
 
-  MemoryAccess *getClobberingMemoryAccessForHoist(MemoryUseOrDef *MA,
-                                                  BatchAAResults &BAA) override {
+  MemoryAccess *
+  getClobberingMemoryAccessForHoist(MemoryUseOrDef *MA,
+                                    BatchAAResults &BAA) override {
     unsigned UpwardWalkLimit = MaxCheckLimit;
     return Walker->getClobberingMemoryAccessForHoistBase(MA, BAA,
                                                          UpwardWalkLimit);
@@ -1129,8 +1130,9 @@ public:
     return getClobberingMemoryAccess(MA, Loc, BAA, UpwardWalkLimit);
   }
 
-  MemoryAccess *getClobberingMemoryAccessForHoist(MemoryUseOrDef *MA,
-                                                  BatchAAResults &BAA) override {
+  MemoryAccess *
+  getClobberingMemoryAccessForHoist(MemoryUseOrDef *MA,
+                                    BatchAAResults &BAA) override {
     unsigned UpwardWalkLimit = MaxCheckLimit;
     return Walker->getClobberingMemoryAccessForHoistBase(MA, BAA,
                                                          UpwardWalkLimit);
@@ -2697,8 +2699,9 @@ DoNothingMemorySSAWalker::getClobberingMemoryAccess(MemoryAccess *MA,
   return MA;
 }
 
-MemoryAccess *DoNothingMemorySSAWalker::getClobberingMemoryAccessForHoist(
-    MemoryUseOrDef *MA, BatchAAResults &) {
+MemoryAccess *
+DoNothingMemorySSAWalker::getClobberingMemoryAccessForHoist(MemoryUseOrDef *MA,
+                                                            BatchAAResults &) {
   return MA->getDefiningAccess();
 }
 

``````````

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https://github.com/llvm/llvm-project/pull/210568


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