Change getFrameMoves to return a const reference.

To add a frame now there is a dedicated addFrameMove which also takes
care of constructing the move itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181657 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/Mips16FrameLowering.cpp b/lib/Target/Mips/Mips16FrameLowering.cpp
index 1bb6fe4..d9a7487 100644
--- a/lib/Target/Mips/Mips16FrameLowering.cpp
+++ b/lib/Target/Mips/Mips16FrameLowering.cpp
@@ -40,7 +40,6 @@
   if (StackSize == 0 && !MFI->adjustsStack()) return;
 
   MachineModuleInfo &MMI = MF.getMMI();
-  std::vector<MachineMove> &Moves = MMI.getFrameMoves();
   MachineLocation DstML, SrcML;
 
   // Adjust stack.
@@ -52,22 +51,22 @@
           TII.get(TargetOpcode::PROLOG_LABEL)).addSym(AdjustSPLabel);
   DstML = MachineLocation(MachineLocation::VirtualFP);
   SrcML = MachineLocation(MachineLocation::VirtualFP, -StackSize);
-  Moves.push_back(MachineMove(AdjustSPLabel, DstML, SrcML));
+  MMI.addFrameMove(AdjustSPLabel, DstML, SrcML);
 
   MCSymbol *CSLabel = MMI.getContext().CreateTempSymbol();
   BuildMI(MBB, MBBI, dl,
           TII.get(TargetOpcode::PROLOG_LABEL)).addSym(CSLabel);
   DstML = MachineLocation(MachineLocation::VirtualFP, -8);
   SrcML = MachineLocation(Mips::S1);
-  Moves.push_back(MachineMove(CSLabel, DstML, SrcML));
+  MMI.addFrameMove(CSLabel, DstML, SrcML);
 
   DstML = MachineLocation(MachineLocation::VirtualFP, -12);
   SrcML = MachineLocation(Mips::S0);
-  Moves.push_back(MachineMove(CSLabel, DstML, SrcML));
+  MMI.addFrameMove(CSLabel, DstML, SrcML);
 
   DstML = MachineLocation(MachineLocation::VirtualFP, -4);
   SrcML = MachineLocation(Mips::RA);
-  Moves.push_back(MachineMove(CSLabel, DstML, SrcML));
+  MMI.addFrameMove(CSLabel, DstML, SrcML);
 
   if (hasFP(MF))
     BuildMI(MBB, MBBI, dl, TII.get(Mips::MoveR3216), Mips::S0)