[PATCH] D81233: Correctly report modified status for DSE

[serge via Phabricator via llvm-commits]

serge-sans-paille created this revision.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.
serge-sans-paille added reviewers: nikic, foad, jdoerfert, fhahn.

Related to https://reviews.llvm.org/D80916


https://reviews.llvm.org/D81233

Files:
  llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp


Index: llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -1859,6 +1859,7 @@
         LLVM_DEBUG(dbgs() << "DSE: Remove Dead Store:\n  DEAD: " << *SI
                           << '\n');
         NumNoopStores++;
+        MadeChange = true;
         continue;
       }
     }
@@ -2051,7 +2052,7 @@
       PostDominatorTree &PDT =
           getAnalysis<PostDominatorTreeWrapperPass>().getPostDomTree();
 
-      eliminateDeadStoresMemorySSA(F, AA, MSSA, DT, PDT, TLI);
+      Changed = eliminateDeadStoresMemorySSA(F, AA, MSSA, DT, PDT, TLI);
     } else {
       MemoryDependenceResults &MD =
           getAnalysis<MemoryDependenceWrapperPass>().getMemDep();


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