Use pointers to the MCAsmInfo and MCRegInfo.

Someone may want to do something crazy, like replace these objects if they
change or something.

No functionality change intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184175 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsSEFrameLowering.cpp b/lib/Target/Mips/MipsSEFrameLowering.cpp
index 91ffb94..c8d8388 100644
--- a/lib/Target/Mips/MipsSEFrameLowering.cpp
+++ b/lib/Target/Mips/MipsSEFrameLowering.cpp
@@ -285,7 +285,7 @@
   if (StackSize == 0 && !MFI->adjustsStack()) return;
 
   MachineModuleInfo &MMI = MF.getMMI();
-  const MCRegisterInfo &MRI = MMI.getContext().getRegisterInfo();
+  const MCRegisterInfo *MRI = MMI.getContext().getRegisterInfo();
   MachineLocation DstML, SrcML;
 
   // Adjust stack.
@@ -321,9 +321,9 @@
       // one for each of the paired single precision registers.
       if (Mips::AFGR64RegClass.contains(Reg)) {
         unsigned Reg0 =
-            MRI.getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_fpeven), true);
+            MRI->getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_fpeven), true);
         unsigned Reg1 =
-            MRI.getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_fpodd), true);
+            MRI->getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_fpodd), true);
 
         if (!STI.isLittle())
           std::swap(Reg0, Reg1);
@@ -335,7 +335,7 @@
       } else {
         // Reg is either in CPURegs or FGR32.
         MMI.addFrameInst(MCCFIInstruction::createOffset(
-            CSLabel, MRI.getDwarfRegNum(Reg, 1), Offset));
+            CSLabel, MRI->getDwarfRegNum(Reg, 1), Offset));
       }
     }
   }
@@ -358,7 +358,7 @@
             TII.get(TargetOpcode::PROLOG_LABEL)).addSym(CSLabel2);
     for (int I = 0; I < 4; ++I) {
       int64_t Offset = MFI->getObjectOffset(MipsFI->getEhDataRegFI(I));
-      unsigned Reg = MRI.getDwarfRegNum(ehDataReg(I), true);
+      unsigned Reg = MRI->getDwarfRegNum(ehDataReg(I), true);
       MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel2, Reg, Offset));
     }
   }
@@ -373,7 +373,7 @@
     BuildMI(MBB, MBBI, dl,
             TII.get(TargetOpcode::PROLOG_LABEL)).addSym(SetFPLabel);
     MMI.addFrameInst(MCCFIInstruction::createDefCfaRegister(
-        SetFPLabel, MRI.getDwarfRegNum(FP, true)));
+        SetFPLabel, MRI->getDwarfRegNum(FP, true)));
   }
 }