Clean up uses of TargetLowering::getTargetMachine.

llvm-svn: 55769
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 1bada5e..3626081 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -302,7 +302,7 @@
 }
 
 const TargetMachine &SelectionDAG::getTarget() const {
-  return TLI.getTargetMachine();
+  return MF->getTarget();
 }
 
 //===----------------------------------------------------------------------===//