Add basic infrastructure and x86 support for preserving MachineMemOperand
information when unfolding memory references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83656 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h
index 677ec76..83162fb 100644
--- a/lib/Target/X86/X86InstrInfo.h
+++ b/lib/Target/X86/X86InstrInfo.h
@@ -498,6 +498,8 @@
   virtual void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, bool isKill,
                               SmallVectorImpl<MachineOperand> &Addr,
                               const TargetRegisterClass *RC,
+                              MachineInstr::mmo_iterator MMOBegin,
+                              MachineInstr::mmo_iterator MMOEnd,
                               SmallVectorImpl<MachineInstr*> &NewMIs) const;
 
   virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
@@ -508,6 +510,8 @@
   virtual void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
                                SmallVectorImpl<MachineOperand> &Addr,
                                const TargetRegisterClass *RC,
+                               MachineInstr::mmo_iterator MMOBegin,
+                               MachineInstr::mmo_iterator MMOEnd,
                                SmallVectorImpl<MachineInstr*> &NewMIs) const;
   
   virtual bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,