It's essential we clear CodeGenMap after isel every basic block!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24867 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index 4fad8dff77c986cce1cffdc425e6789553cc4654..4484ae50161d4e5546953a84e0b7e1efaa84aeb9 100644 (file)
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -139,6 +139,7 @@ void X86DAGToDAGISel::InstructionSelectBasicBlock(SelectionDAG &DAG) {
 
   // Codegen the basic block.
   DAG.setRoot(Select(DAG.getRoot()));
+  CodeGenMap.clear();
   DAG.RemoveDeadNodes();
 
   // Emit machine code to BB.