Mips assembler: Improve set register alias handling

[oota-llvm.git] / lib / Target / Mips / Mips16RegisterInfo.h

diff --git a/lib/Target/Mips/Mips16RegisterInfo.h b/lib/Target/Mips/Mips16RegisterInfo.h
index c702a15f60f0829a63d6491750bea8604c69ac88..2b3d2b1a4ecb2bb1880fd2423d0b8bf20c1008cf 100644 (file)
--- a/lib/Target/Mips/Mips16RegisterInfo.h
+++ b/lib/Target/Mips/Mips16RegisterInfo.h
@@ -20,12 +20,25 @@ namespace llvm {
 class Mips16InstrInfo;
 
 class Mips16RegisterInfo : public MipsRegisterInfo {
+  const Mips16InstrInfo &TII;
 public:
-  Mips16RegisterInfo(const MipsSubtarget &Subtarget);
+  Mips16RegisterInfo(const MipsSubtarget &Subtarget,
+                     const Mips16InstrInfo &TII);
+
+  bool requiresRegisterScavenging(const MachineFunction &MF) const;
+
+  bool requiresFrameIndexScavenging(const MachineFunction &MF) const;
+
+  bool useFPForScavengingIndex(const MachineFunction &MF) const;
+
+  bool saveScavengerRegister(MachineBasicBlock &MBB,
+                                     MachineBasicBlock::iterator I,
+                                     MachineBasicBlock::iterator &UseMI,
+                                     const TargetRegisterClass *RC,
+                                     unsigned Reg) const;
+
+  virtual const TargetRegisterClass *intRegClass(unsigned Size) const;
 
-  void eliminateCallFramePseudoInstr(MachineFunction &MF,
-                                     MachineBasicBlock &MBB,
-                                     MachineBasicBlock::iterator I) const;
 private:
   virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
                            int FrameIndex, uint64_t StackSize,