| 1 | //=- SystemZTargetMachine.h - Define TargetMachine for SystemZ ----*- 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 SystemZ specific subclass of TargetMachine. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | |
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| 14 | #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H |
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| 15 | #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H |
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| 16 | |
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| 17 | #include "SystemZSubtarget.h" |
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| 18 | #include "llvm/ADT/StringRef.h" |
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| 19 | #include "llvm/Analysis/TargetTransformInfo.h" |
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| 20 | #include "llvm/Support/CodeGen.h" |
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| 21 | #include "llvm/Target/TargetMachine.h" |
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| 22 | #include <memory> |
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| 23 | #include <optional> |
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| 24 | |
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| 25 | namespace llvm { |
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| 26 | |
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| 27 | class SystemZTargetMachine : public LLVMTargetMachine { |
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| 28 | std::unique_ptr<TargetLoweringObjectFile> TLOF; |
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| 29 | |
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| 30 | mutable StringMap<std::unique_ptr<SystemZSubtarget>> SubtargetMap; |
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| 31 | |
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| 32 | public: |
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| 33 | SystemZTargetMachine(const Target &T, const Triple &TT, StringRef CPU, |
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| 34 | StringRef FS, const TargetOptions &Options, |
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| 35 | std::optional<Reloc::Model> RM, |
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| 36 | std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, |
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| 37 | bool JIT); |
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| 38 | ~SystemZTargetMachine() override; |
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| 39 | |
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| 40 | const SystemZSubtarget *getSubtargetImpl(const Function &) const override; |
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| 41 | // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, |
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| 42 | // subtargets are per-function entities based on the target-specific |
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| 43 | // attributes of each function. |
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| 44 | const SystemZSubtarget *getSubtargetImpl() const = delete; |
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| 45 | |
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| 46 | // Override LLVMTargetMachine |
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| 47 | TargetPassConfig *createPassConfig(PassManagerBase &PM) override; |
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| 48 | TargetTransformInfo getTargetTransformInfo(const Function &F) const override; |
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| 49 | |
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| 50 | TargetLoweringObjectFile *getObjFileLowering() const override { |
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| 51 | return TLOF.get(); |
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| 52 | } |
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| 53 | |
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| 54 | MachineFunctionInfo * |
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| 55 | createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, |
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| 56 | const TargetSubtargetInfo *STI) const override; |
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| 57 | |
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| 58 | bool targetSchedulesPostRAScheduling() const override { return true; }; |
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| 59 | }; |
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| 60 | |
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| 61 | } // end namespace llvm |
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| 62 | |
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| 63 | #endif // LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H |
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| 64 | |
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