| 1 | //===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file declares the X86 specific subclass of TargetMachine. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #ifndef LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H |
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| 14 | #define LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H |
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| 15 | |
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| 16 | #include "X86Subtarget.h" |
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| 17 | #include "llvm/ADT/StringMap.h" |
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| 18 | #include "llvm/Support/CodeGen.h" |
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| 19 | #include "llvm/Target/TargetMachine.h" |
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| 20 | #include <memory> |
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| 21 | #include <optional> |
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| 22 | |
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| 23 | namespace llvm { |
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| 24 | |
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| 25 | class StringRef; |
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| 26 | class TargetTransformInfo; |
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| 27 | |
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| 28 | class X86TargetMachine final : public LLVMTargetMachine { |
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| 29 | std::unique_ptr<TargetLoweringObjectFile> TLOF; |
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| 30 | mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap; |
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| 31 | // True if this is used in JIT. |
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| 32 | bool IsJIT; |
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| 33 | |
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| 34 | public: |
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| 35 | X86TargetMachine(const Target &T, const Triple &TT, StringRef CPU, |
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| 36 | StringRef FS, const TargetOptions &Options, |
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| 37 | std::optional<Reloc::Model> RM, |
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| 38 | std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, |
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| 39 | bool JIT); |
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| 40 | ~X86TargetMachine() override; |
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| 41 | |
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| 42 | const X86Subtarget *getSubtargetImpl(const Function &F) const override; |
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| 43 | // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, |
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| 44 | // subtargets are per-function entities based on the target-specific |
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| 45 | // attributes of each function. |
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| 46 | const X86Subtarget *getSubtargetImpl() const = delete; |
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| 47 | |
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| 48 | TargetTransformInfo getTargetTransformInfo(const Function &F) const override; |
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| 49 | |
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| 50 | // Set up the pass pipeline. |
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| 51 | TargetPassConfig *createPassConfig(PassManagerBase &PM) override; |
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| 52 | |
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| 53 | TargetLoweringObjectFile *getObjFileLowering() const override { |
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| 54 | return TLOF.get(); |
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| 55 | } |
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| 56 | |
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| 57 | MachineFunctionInfo * |
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| 58 | createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, |
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| 59 | const TargetSubtargetInfo *STI) const override; |
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| 60 | |
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| 61 | Error buildCodeGenPipeline(ModulePassManager &, raw_pwrite_stream &, |
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| 62 | raw_pwrite_stream *, CodeGenFileType, |
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| 63 | const CGPassBuilderOption &, |
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| 64 | PassInstrumentationCallbacks *) override; |
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| 65 | |
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| 66 | bool isJIT() const { return IsJIT; } |
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| 67 | |
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| 68 | bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override; |
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| 69 | }; |
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| 70 | |
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| 71 | } // end namespace llvm |
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| 72 | |
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| 73 | #endif // LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H |
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| 74 | |
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