-//===- Thumb1RegisterInfo.h - Thumb-1 Register Information Impl ----*- C++ -*-===//
+//===- Thumb1RegisterInfo.h - Thumb-1 Register Information Impl -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file contains the Thumb-1 implementation of the TargetRegisterInfo class.
+// This file contains the Thumb-1 implementation of the TargetRegisterInfo
+// class.
//
//===----------------------------------------------------------------------===//
namespace llvm {
class ARMSubtarget;
- class TargetInstrInfo;
+ class ARMBaseInstrInfo;
class Type;
struct Thumb1RegisterInfo : public ARMBaseRegisterInfo {
public:
- Thumb1RegisterInfo(const TargetInstrInfo &tii, const ARMSubtarget &STI);
+ Thumb1RegisterInfo(const ARMBaseInstrInfo &tii, const ARMSubtarget &STI);
+
+ const TargetRegisterClass *getPointerRegClass(unsigned Kind = 0) const;
/// emitLoadConstPool - Emits a load from constpool to materialize the
/// specified immediate.
- void emitLoadConstPool(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator &MBBI,
- unsigned DestReg, int Val,
- const TargetInstrInfo *TII,
- DebugLoc dl) const;
+ void emitLoadConstPool(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator &MBBI,
+ DebugLoc dl,
+ unsigned DestReg, unsigned SubIdx, int Val,
+ ARMCC::CondCodes Pred = ARMCC::AL,
+ unsigned PredReg = 0,
+ unsigned MIFlags = MachineInstr::NoFlags) const;
/// Code Generation virtual methods...
- const TargetRegisterClass *
- getPhysicalRegisterRegClass(unsigned Reg, MVT VT = MVT::Other) const;
-
- bool isReservedReg(const MachineFunction &MF, unsigned Reg) const;
-
- bool requiresRegisterScavenging(const MachineFunction &MF) const;
-
- bool hasReservedCallFrame(MachineFunction &MF) const;
-
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
+ // rewrite MI to access 'Offset' bytes from the FP. Update Offset to be
+ // however much remains to be handled. Return 'true' if no further
+ // work is required.
+ bool rewriteFrameIndex(MachineBasicBlock::iterator II, unsigned FrameRegIdx,
+ unsigned FrameReg, int &Offset,
+ const ARMBaseInstrInfo &TII) const;
+ void resolveFrameIndex(MachineBasicBlock::iterator I,
+ unsigned BaseReg, int64_t Offset) const;
+ bool saveScavengerRegister(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ MachineBasicBlock::iterator &UseMI,
+ const TargetRegisterClass *RC,
+ unsigned Reg) const;
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
-
- void emitPrologue(MachineFunction &MF) const;
- void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
};
}