[PATCH] D45238: MemCpyOpt does not preserve MemDep, unforunately. See PR 36965, 36964, 36940, 36944, 36943, and 36941Testcases coming.

[Daniel Berlin via Phabricator via llvm-commits]

dberlin updated this revision to Diff 140885.
dberlin added a comment.



Updating D45238: MemCpyOpt does not preserve MemDep, unforunately. See PR 36965, 36964, 36940, 36944, 36943, and 36941
======================================================================================================================

Testcases coming.


Repository:
  rL LLVM

https://reviews.llvm.org/D45238

Files:
  lib/Transforms/Scalar/MemCpyOptimizer.cpp


Index: lib/Transforms/Scalar/MemCpyOptimizer.cpp
===================================================================
--- lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -360,7 +360,6 @@
     AU.addRequired<AAResultsWrapperPass>();
     AU.addRequired<TargetLibraryInfoWrapperPass>();
     AU.addPreserved<GlobalsAAWrapperPass>();
-    AU.addPreserved<MemoryDependenceWrapperPass>();
   }
 };
 
@@ -1447,7 +1446,6 @@
   PreservedAnalyses PA;
   PA.preserveSet<CFGAnalyses>();
   PA.preserve<GlobalsAA>();
-  PA.preserve<MemoryDependenceAnalysis>();
   return PA;
 }
 


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