commit 188f428e4e76d465ac89c275318521bdfbe028eb
author Bob Wilson <bob.wilson@apple.com> Tue Feb 23 05:55:00 2010 +0000
committer Bob Wilson <bob.wilson@apple.com> Tue Feb 23 05:55:00 2010 +0000
tree f42e9d996782d1133a746b16fd55769651764ed7
parent 6eb3012b454b8dd3588236333a6bc57e9e6128b1

Update memdep when load PRE inserts a new load, and add some debug output.
I don't have a small testcase for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96890 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/GVN.cpp

diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index f015def..164730c 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1707,6 +1707,8 @@
     // Add the newly created load.
     ValuesPerBlock.push_back(AvailableValueInBlock::get(UnavailablePred,
                                                         NewLoad));
+    MD->invalidateCachedPointerInfo(LoadPtr);
+    DEBUG(dbgs() << "GVN INSERTED " << *NewLoad << '\n');
   }
 
   // Perform PHI construction.