commit d41db8f9cb9bc85d60ea4ce4e2abcef010238a6a
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 30119314bfdac618b6e8b819f8e9ad603b411b4b
parent e5863d663974cfb26a9e387c3c5b0787b47f1403

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

llvm-svn: 123247

llvm/lib/Transforms/Utils/LoopSimplify.cpp

diff --git a/llvm/lib/Transforms/Utils/LoopSimplify.cpp b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
index 5ec0f10..efb4d36 100644
--- a/llvm/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/llvm/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();
     }