Don't record instructions for copying method arguments in the

AddedInstrns sets for the first machine instruction.  It is hard
to ensure that the right order is preserved, and sure enough, the
order was broken.  Instead, use a separate set for the function entry.

llvm-svn: 2318

lib/CodeGen/RegAlloc/PhyRegAlloc.h

@@ -78,6 +78,7 @@ class PhyRegAlloc: public NonCopyable {
 
   
   AddedInstrMapType AddedInstrMap;      // to store instrns added in this phase
+  AddedInstrns AddedInstrAtEntry;       // to store instrns added at entry
   cfg::LoopInfo *LoopDepthCalc;         // to calculate loop depths 
   ReservedColorListType ResColList;     // A set of reserved regs if desired.
                                         // currently not used