llvm/lib/Target/SystemZ/SystemZTargetMachine.h

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