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This field specifies registers that are preserved across function calls, but that should not be included in the generates SaveList array. This can be used ot generate regmasks for architectures that save registers through other means, like SPARC's register windows. llvm-svn: 189084
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
//===-- SparcRegisterInfo.h - Sparc Register Information Impl ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the Sparc implementation of the TargetRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SPARCREGISTERINFO_H
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#define SPARCREGISTERINFO_H
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#include "llvm/Target/TargetRegisterInfo.h"
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#define GET_REGINFO_HEADER
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#include "SparcGenRegisterInfo.inc"
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namespace llvm {
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class SparcSubtarget;
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class TargetInstrInfo;
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class Type;
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struct SparcRegisterInfo : public SparcGenRegisterInfo {
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SparcSubtarget &Subtarget;
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SparcRegisterInfo(SparcSubtarget &st);
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/// Code Generation virtual methods...
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const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
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const uint32_t* getCallPreservedMask(CallingConv::ID CC) const;
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BitVector getReservedRegs(const MachineFunction &MF) const;
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const TargetRegisterClass *getPointerRegClass(const MachineFunction &MF,
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unsigned Kind) const;
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void eliminateFrameIndex(MachineBasicBlock::iterator II,
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int SPAdj, unsigned FIOperandNum,
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RegScavenger *RS = NULL) const;
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void processFunctionBeforeFrameFinalized(MachineFunction &MF,
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RegScavenger *RS = NULL) const;
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// Debug information queries.
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unsigned getFrameRegister(const MachineFunction &MF) const;
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// Exception handling queries.
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unsigned getEHExceptionRegister() const;
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unsigned getEHHandlerRegister() const;
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};
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} // end namespace llvm
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#endif
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