Fixed a bug in LiveInterval scaling (failure to scale VNI defs correctly), removed old TODO comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74054 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index cac9253..26722a3 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -373,7 +373,8 @@
   for (vni_iterator VNI = vni_begin(), VNIE = vni_end(); VNI != VNIE; ++VNI) {
     VNInfo *vni = *VNI;
 
-    vni->def = InstrSlots::scale(vni->def, factor);
+    if (vni->isDefAccurate())
+      vni->def = InstrSlots::scale(vni->def, factor);
 
     for (unsigned i = 0; i < vni->kills.size(); ++i) {
       if (vni->kills[i] != 0)
diff --git a/lib/CodeGen/VirtRegRewriter.h b/lib/CodeGen/VirtRegRewriter.h
index bc830f7..f9d7fbb 100644
--- a/lib/CodeGen/VirtRegRewriter.h
+++ b/lib/CodeGen/VirtRegRewriter.h
@@ -32,11 +32,6 @@
 #include "VirtRegMap.h"
 #include <map>
 
-// TODO:
-//       - Finish renaming Spiller -> Rewriter
-//         - SimpleSpiller
-//         - LocalSpiller
-
 namespace llvm {
   
   /// VirtRegRewriter interface: Implementations of this interface assign