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//===-- AMDGPURegisterInfo.h - AMDGPURegisterInfo Interface -*- C++ -*-----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// \brief TargetRegisterInfo interface that is implemented by all hw codegen
/// targets.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_R600_AMDGPUREGISTERINFO_H
#define LLVM_LIB_TARGET_R600_AMDGPUREGISTERINFO_H
#include "llvm/ADT/BitVector.h"
#include "llvm/Target/TargetRegisterInfo.h"
#define GET_REGINFO_HEADER
#define GET_REGINFO_ENUM
#include "AMDGPUGenRegisterInfo.inc"
namespace llvm {
class AMDGPUSubtarget;
class TargetInstrInfo;
struct AMDGPURegisterInfo : public AMDGPUGenRegisterInfo {
static const MCPhysReg CalleeSavedReg;
AMDGPURegisterInfo();
BitVector getReservedRegs(const MachineFunction &MF) const override {
assert(!"Unimplemented"); return BitVector();
}
virtual const TargetRegisterClass* getCFGStructurizerRegClass(MVT VT) const {
assert(!"Unimplemented"); return nullptr;
}
virtual unsigned getHWRegIndex(unsigned Reg) const {
assert(!"Unimplemented"); return 0;
}
/// \returns the sub reg enum value for the given \p Channel
/// (e.g. getSubRegFromChannel(0) -> AMDGPU::sub0)
unsigned getSubRegFromChannel(unsigned Channel) const;
const MCPhysReg* getCalleeSavedRegs(const MachineFunction *MF) const override;
void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
unsigned FIOperandNum,
RegScavenger *RS) const override;
unsigned getFrameRegister(const MachineFunction &MF) const override;
unsigned getIndirectSubReg(unsigned IndirectIndex) const;
};
} // End namespace llvm
#endif
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