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Diffstat (limited to 'llvm/lib/Target/Sparc/SparcInstrInfo.h')
-rw-r--r-- | llvm/lib/Target/Sparc/SparcInstrInfo.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/SparcInstrInfo.h b/llvm/lib/Target/Sparc/SparcInstrInfo.h new file mode 100644 index 00000000000..3dd8b8e8b3f --- /dev/null +++ b/llvm/lib/Target/Sparc/SparcInstrInfo.h @@ -0,0 +1,68 @@ +//===- SparcInstrInfo.h - Sparc Instruction Information ---------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and is distributed under +// the University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains the Sparc implementation of the TargetInstrInfo class. +// +//===----------------------------------------------------------------------===// + +#ifndef SPARCINSTRUCTIONINFO_H +#define SPARCINSTRUCTIONINFO_H + +#include "llvm/Target/TargetInstrInfo.h" +#include "SparcRegisterInfo.h" + +namespace llvm { + +/// SPII - This namespace holds all of the target specific flags that +/// instruction info tracks. +/// +namespace SPII { + enum { + Pseudo = (1<<0), + Load = (1<<1), + Store = (1<<2), + DelaySlot = (1<<3) + }; +}; + +class SparcInstrInfo : public TargetInstrInfo { + const SparcRegisterInfo RI; +public: + SparcInstrInfo(SparcSubtarget &ST); + + /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As + /// such, whenever a client has an instance of instruction info, it should + /// always be able to get register info as well (through this method). + /// + virtual const MRegisterInfo &getRegisterInfo() const { return RI; } + + /// Return true if the instruction is a register to register move and + /// leave the source and dest operands in the passed parameters. + /// + virtual bool isMoveInstr(const MachineInstr &MI, + unsigned &SrcReg, unsigned &DstReg) const; + + /// isLoadFromStackSlot - If the specified machine instruction is a direct + /// load from a stack slot, return the virtual or physical register number of + /// the destination along with the FrameIndex of the loaded stack slot. If + /// not, return 0. This predicate must return 0 if the instruction has + /// any side effects other than loading from the stack slot. + virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const; + + /// isStoreToStackSlot - If the specified machine instruction is a direct + /// store to a stack slot, return the virtual or physical register number of + /// the source reg along with the FrameIndex of the loaded stack slot. If + /// not, return 0. This predicate must return 0 if the instruction has + /// any side effects other than storing to the stack slot. + virtual unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const; +}; + +} + +#endif |