commit b6810991a9648a40fe05162d744f42c3c178dba7
author Chris Lattner <sabre@nondot.org> Tue Jan 11 08:16:49 2011 +0000
committer Chris Lattner <sabre@nondot.org> Tue Jan 11 08:16:49 2011 +0000
tree 1609d75437f596e02ef4decb0ac45b66b7b9bfa0
parent b5b7997fd0765f73b711ea4c72e4433ce3637794

when MergeBlockIntoPredecessor merges two blocks, update MemDep if it
is floating around in the ether.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123223 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/BasicBlockUtils.cpp

diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp
index 40d33d1..e71e84f 100644
--- a/lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/lib/Transforms/Utils/BasicBlockUtils.cpp
@@ -179,6 +179,10 @@
       
       if (LoopInfo *LI = P->getAnalysisIfAvailable<LoopInfo>())
         LI->removeBlock(BB);
+      
+      if (MemoryDependenceAnalysis *MD =
+            P->getAnalysisIfAvailable<MemoryDependenceAnalysis>())
+        MD->invalidateCachedPredecessors();
     }
   }