RISCVTargetMachine.h revision 360784 
1//===-- RISCVTargetMachine.h - Define TargetMachine for RISCV ---*- 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 declares the RISCV specific subclass of TargetMachine.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_RISCV_RISCVTARGETMACHINE_H
14#define LLVM_LIB_TARGET_RISCV_RISCVTARGETMACHINE_H
15
16#include "MCTargetDesc/RISCVMCTargetDesc.h"
17#include "RISCVSubtarget.h"
18#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
19#include "llvm/IR/DataLayout.h"
20#include "llvm/Target/TargetMachine.h"
21
22namespace llvm {
23class RISCVTargetMachine : public LLVMTargetMachine {
24  std::unique_ptr<TargetLoweringObjectFile> TLOF;
25  mutable StringMap<std::unique_ptr<RISCVSubtarget>> SubtargetMap;
26
27public:
28  RISCVTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
29                     StringRef FS, const TargetOptions &Options,
30                     Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
31                     CodeGenOpt::Level OL, bool JIT);
32
33  const RISCVSubtarget *getSubtargetImpl(const Function &F) const override;
34  // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
35  // subtargets are per-function entities based on the target-specific
36  // attributes of each function.
37  const RISCVSubtarget *getSubtargetImpl() const = delete;
38
39  TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
40
41  TargetLoweringObjectFile *getObjFileLowering() const override {
42    return TLOF.get();
43  }
44
45  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
46};
47}
48
49#endif
50