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Diffstat (limited to 'lib/Target/ARM/Thumb2RegisterInfo.h')
-rw-r--r-- | lib/Target/ARM/Thumb2RegisterInfo.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/Target/ARM/Thumb2RegisterInfo.h b/lib/Target/ARM/Thumb2RegisterInfo.h new file mode 100644 index 0000000..d379c31 --- /dev/null +++ b/lib/Target/ARM/Thumb2RegisterInfo.h @@ -0,0 +1,60 @@ +//===- Thumb2RegisterInfo.h - Thumb-2 Register Information Impl ----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains the Thumb-2 implementation of the TargetRegisterInfo class. +// +//===----------------------------------------------------------------------===// + +#ifndef THUMB2REGISTERINFO_H +#define THUMB2REGISTERINFO_H + +#include "ARM.h" +#include "ARMRegisterInfo.h" +#include "llvm/Target/TargetRegisterInfo.h" + +namespace llvm { + class ARMSubtarget; + class TargetInstrInfo; + class Type; + +struct Thumb2RegisterInfo : public ARMBaseRegisterInfo { +public: + Thumb2RegisterInfo(const TargetInstrInfo &tii, const ARMSubtarget &STI); + + /// 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; + + /// 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; + + void eliminateFrameIndex(MachineBasicBlock::iterator II, + int SPAdj, RegScavenger *RS = NULL) const; + + void emitPrologue(MachineFunction &MF) const; + void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; +}; +} + +#endif // THUMB2REGISTERINFO_H |