LLVM  9.0.0svn
SystemZTargetMachine.h
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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"
21 #include "llvm/Support/CodeGen.h"
23 #include <memory>
24 
25 namespace llvm {
26 
28  std::unique_ptr<TargetLoweringObjectFile> TLOF;
29  SystemZSubtarget Subtarget;
30 
31 public:
32  SystemZTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
33  StringRef FS, const TargetOptions &Options,
35  CodeGenOpt::Level OL, bool JIT);
36  ~SystemZTargetMachine() override;
37 
38  const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
39 
40  const SystemZSubtarget *getSubtargetImpl(const Function &) const override {
41  return &Subtarget;
42  }
43 
44  // Override LLVMTargetMachine
47 
49  return TLOF.get();
50  }
51 
52  bool targetSchedulesPostRAScheduling() const override { return true; };
53 };
54 
55 } // end namespace llvm
56 
57 #endif // LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
F(f)
Target-Independent Code Generator Pass Configuration Options.
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
This class describes a target machine that is implemented with the LLVM target-independent code gener...
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
SystemZTargetMachine(const Target &T, const Triple &TT, StringRef CPU, StringRef FS, const TargetOptions &Options, Optional< Reloc::Model > RM, Optional< CodeModel::Model > CM, CodeGenOpt::Level OL, bool JIT)
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
TargetTransformInfo getTargetTransformInfo(const Function &F) override
Get a TargetTransformInfo implementation for the target.
TargetLoweringObjectFile * getObjFileLowering() const override
Target - Wrapper for Target specific information.
const SystemZSubtarget * getSubtargetImpl() const
bool targetSchedulesPostRAScheduling() const override
True if subtarget inserts the final scheduling pass on its own.
TargetOptions Options
Definition: TargetMachine.h:96
const SystemZSubtarget * getSubtargetImpl(const Function &) const override
Virtual method implemented by subclasses that returns a reference to that target&#39;s TargetSubtargetInf...
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
This pass exposes codegen information to IR-level passes.