1//===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- 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 X86 specific subclass of TargetMachine.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
14#define LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
15
16#include "X86Subtarget.h"
17#include "llvm/ADT/StringMap.h"
18#include "llvm/Support/CodeGen.h"
19#include "llvm/Target/TargetMachine.h"
20#include <memory>
21#include <optional>
22
23namespace llvm {
24
25class StringRef;
26class TargetTransformInfo;
27
28class X86TargetMachine final : public LLVMTargetMachine {
29 std::unique_ptr<TargetLoweringObjectFile> TLOF;
30 mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap;
31 // True if this is used in JIT.
32 bool IsJIT;
33
34public:
35 X86TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
36 StringRef FS, const TargetOptions &Options,
37 std::optional<Reloc::Model> RM,
38 std::optional<CodeModel::Model> CM, CodeGenOptLevel OL,
39 bool JIT);
40 ~X86TargetMachine() override;
41
42 const X86Subtarget *getSubtargetImpl(const Function &F) const override;
43 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
44 // subtargets are per-function entities based on the target-specific
45 // attributes of each function.
46 const X86Subtarget *getSubtargetImpl() const = delete;
47
48 TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
49
50 // Set up the pass pipeline.
51 TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
52
53 TargetLoweringObjectFile *getObjFileLowering() const override {
54 return TLOF.get();
55 }
56
57 MachineFunctionInfo *
58 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F,
59 const TargetSubtargetInfo *STI) const override;
60
61 yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override;
62 yaml::MachineFunctionInfo *
63 convertFuncInfoToYAML(const MachineFunction &MF) const override;
64 bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &,
65 PerFunctionMIParsingState &PFS,
66 SMDiagnostic &Error,
67 SMRange &SourceRange) const override;
68
69 void registerPassBuilderCallbacks(PassBuilder &PB) override;
70
71 Error buildCodeGenPipeline(ModulePassManager &, raw_pwrite_stream &,
72 raw_pwrite_stream *, CodeGenFileType,
73 const CGPassBuilderOption &,
74 PassInstrumentationCallbacks *) override;
75
76 bool isJIT() const { return IsJIT; }
77
78 bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override;
79};
80
81} // end namespace llvm
82
83#endif // LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
84