LLVM  7.0.0svn
SystemZTargetMachine.h
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1 //=- SystemZTargetMachine.h - Define TargetMachine for SystemZ ----*- C++ -*-=//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file declares the SystemZ specific subclass of TargetMachine.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 
15 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H
16 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H
17 
18 #include "SystemZSubtarget.h"
19 #include "llvm/ADT/Optional.h"
20 #include "llvm/ADT/StringRef.h"
22 #include "llvm/Support/CodeGen.h"
24 #include <memory>
25 
26 namespace llvm {
27 
29  std::unique_ptr<TargetLoweringObjectFile> TLOF;
30  SystemZSubtarget Subtarget;
31 
32 public:
33  SystemZTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
34  StringRef FS, const TargetOptions &Options,
36  CodeGenOpt::Level OL, bool JIT);
37  ~SystemZTargetMachine() override;
38 
39  const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
40 
41  const SystemZSubtarget *getSubtargetImpl(const Function &) const override {
42  return &Subtarget;
43  }
44 
45  // Override LLVMTargetMachine
48 
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
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
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:44
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:98
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:49
This pass exposes codegen information to IR-level passes.