LLVM 20.0.0git
NVPTXRegisterInfo.h
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1//===- NVPTXRegisterInfo.h - NVPTX Register Information Impl ----*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains the NVPTX implementation of the TargetRegisterInfo class.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXREGISTERINFO_H
14#define LLVM_LIB_TARGET_NVPTX_NVPTXREGISTERINFO_H
15
18#include <sstream>
19
20#define GET_REGINFO_HEADER
21#include "NVPTXGenRegisterInfo.inc"
22
23namespace llvm {
25private:
26 // Hold Strings that can be free'd all together with NVPTXRegisterInfo
27 BumpPtrAllocator StrAlloc;
28 UniqueStringSaver StrPool;
29
30public:
32
33 //------------------------------------------------------
34 // Pure virtual functions from TargetRegisterInfo
35 //------------------------------------------------------
36
37 // NVPTX callee saved registers
38 const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
39
40 BitVector getReservedRegs(const MachineFunction &MF) const override;
41
43 unsigned FIOperandNum,
44 RegScavenger *RS = nullptr) const override;
45
46 Register getFrameRegister(const MachineFunction &MF) const override;
48
50 return const_cast<UniqueStringSaver &>(StrPool);
51 }
52
53 const char *getName(unsigned RegNo) const {
54 std::stringstream O;
55 O << "reg" << RegNo;
56 return getStrPool().save(O.str()).data();
57 }
58
59};
60
61std::string getNVPTXRegClassName(const TargetRegisterClass *RC);
62std::string getNVPTXRegClassStr(const TargetRegisterClass *RC);
63
64} // end namespace llvm
65
66#endif
IRTranslator LLVM IR MI
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:66
const char * getName(unsigned RegNo) const
Register getFrameLocalRegister(const MachineFunction &MF) const
const MCPhysReg * getCalleeSavedRegs(const MachineFunction *MF) const override
NVPTX Callee Saved Registers.
bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
BitVector getReservedRegs(const MachineFunction &MF) const override
UniqueStringSaver & getStrPool() const
Register getFrameRegister(const MachineFunction &MF) const override
Wrapper class representing virtual and physical registers.
Definition: Register.h:19
constexpr const char * data() const
data - Get a pointer to the start of the string (which may not be null terminated).
Definition: StringRef.h:131
Saves strings in the provided stable storage and returns a StringRef with a stable character pointer.
Definition: StringSaver.h:44
StringRef save(const char *S)
Definition: StringSaver.h:52
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
std::string getNVPTXRegClassName(TargetRegisterClass const *RC)
std::string getNVPTXRegClassStr(TargetRegisterClass const *RC)