LLVM 19.0.0git
X86TargetMachine.h
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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"
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,
37 std::optional<Reloc::Model> RM,
38 std::optional<CodeModel::Model> CM, CodeGenOptLevel OL,
39 bool JIT);
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
49
50 // Set up the pass pipeline.
52
54 return TLOF.get();
55 }
56
59 const TargetSubtargetInfo *STI) const override;
60
66
67 bool isJIT() const { return IsJIT; }
68
69 bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override;
70};
71
72} // end namespace llvm
73
74#endif // LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
This file defines the StringMap class.
#define F(x, y, z)
Definition: MD5.cpp:55
Basic Register Allocator
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:66
Lightweight error class with error context and mandatory checking.
Definition: Error.h:160
This class describes a target machine that is implemented with the LLVM target-independent code gener...
An AnalysisManager<MachineFunction> that also exposes IR analysis results.
MachineFunctionPassManager adds/removes below features to/from the base PassManager template instanti...
This class manages callbacks registration, as well as provides a way for PassInstrumentation to pass ...
StringMap - This is an unconventional map that is specialized for handling keys that are "strings",...
Definition: StringMap.h:128
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
std::unique_ptr< const MCSubtargetInfo > STI
TargetOptions Options
Target-Independent Code Generator Pass Configuration Options.
TargetSubtargetInfo - Generic base class for all target subtargets.
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
Target - Wrapper for Target specific information.
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override
Returns true if a cast between SrcAS and DestAS is a noop.
MachineFunctionInfo * createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, const TargetSubtargetInfo *STI) const override
Create the target's instance of MachineFunctionInfo.
const X86Subtarget * getSubtargetImpl() const =delete
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
TargetLoweringObjectFile * getObjFileLowering() const override
Error buildCodeGenPipeline(ModulePassManager &, MachineFunctionPassManager &, MachineFunctionAnalysisManager &, raw_pwrite_stream &, raw_pwrite_stream *, CodeGenFileType, CGPassBuilderOption, PassInstrumentationCallbacks *) override
~X86TargetMachine() override
TargetTransformInfo getTargetTransformInfo(const Function &F) const override
Get a TargetTransformInfo implementation for the target.
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
An abstract base class for streams implementations that also support a pwrite operation.
Definition: raw_ostream.h:444
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
CodeGenFileType
These enums are meant to be passed into addPassesToEmitFile to indicate what type of file to emit,...
Definition: CodeGen.h:83
CodeGenOptLevel
Code generation optimization level.
Definition: CodeGen.h:54
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...