commit f73b99ab43c36b026a03430a30c329a343cdd77b
author Chris Lattner <sabre@nondot.org> Tue Jan 11 18:14:50 2011 +0000
committer Chris Lattner <sabre@nondot.org> Tue Jan 11 18:14:50 2011 +0000
tree 619972f6f7ec676344acc4246e45d27013b0a7b8
parent 6c562f69fe7aa5550e7b6594ee4e861f767471b3

this pass claims to preserve scev, make sure to tell it about deletions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123247 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/LoopSimplify.cpp

diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp
index 5ec0f10..efb4d36 100644
--- a/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/lib/Transforms/Utils/LoopSimplify.cpp
@@ -268,6 +268,7 @@
        (PN = dyn_cast<PHINode>(I++)); )
     if (Value *V = SimplifyInstruction(PN, 0, DT)) {
       if (AA) AA->deleteValue(PN);
+      if (SE) SE->forgetValue(PN);
       PN->replaceAllUsesWith(V);
       PN->eraseFromParent();
     }