Add an initial implementation of LazyValueInfo updating for JumpThreading.  Disabled for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109424 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp
index b07b5d9..5dabcf0 100644
--- a/lib/Transforms/Scalar/JumpThreading.cpp
+++ b/lib/Transforms/Scalar/JumpThreading.cpp
@@ -1314,6 +1314,9 @@
         << ", across block:\n    "
         << *BB << "\n");
   
+  if (LVI)
+    LVI->threadEdge(PredBB, BB, SuccBB);
+  
   // We are going to have to map operands from the original BB block to the new
   // copy of the block 'NewBB'.  If there are PHI nodes in BB, evaluate them to
   // account for entry from PredBB.