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//===- NVPTXRegisterInfo.h - NVPTX Register Information Impl ----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the NVPTX implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXREGISTERINFO_H
#define LLVM_LIB_TARGET_NVPTX_NVPTXREGISTERINFO_H
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/Support/StringSaver.h"
#include <sstream>
#define GET_REGINFO_HEADER
#include "NVPTXGenRegisterInfo.inc"
namespace llvm {
class NVPTXRegisterInfo : public NVPTXGenRegisterInfo {
private:
// Hold Strings that can be free'd all together with NVPTXRegisterInfo
BumpPtrAllocator StrAlloc;
UniqueStringSaver StrPool;
public:
NVPTXRegisterInfo();
//------------------------------------------------------
// Pure virtual functions from TargetRegisterInfo
//------------------------------------------------------
// NVPTX callee saved registers
const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
BitVector getReservedRegs(const MachineFunction &MF) const override;
bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
unsigned FIOperandNum,
RegScavenger *RS = nullptr) const override;
Register getFrameRegister(const MachineFunction &MF) const override;
Register getFrameLocalRegister(const MachineFunction &MF) const;
UniqueStringSaver &getStrPool() const {
return const_cast<UniqueStringSaver &>(StrPool);
}
const char *getName(unsigned RegNo) const {
std::stringstream O;
O << "reg" << RegNo;
return getStrPool().save(O.str()).data();
}
};
std::string getNVPTXRegClassName(const TargetRegisterClass *RC);
std::string getNVPTXRegClassStr(const TargetRegisterClass *RC);
} // end namespace llvm
#endif
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