LLVM  10.0.0svn
MipsTargetMachine.h
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1 //===- MipsTargetMachine.h - Define TargetMachine for Mips ------*- 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 Mips specific subclass of TargetMachine.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
14 #define LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
15 
17 #include "MipsSubtarget.h"
18 #include "llvm/ADT/Optional.h"
19 #include "llvm/ADT/StringMap.h"
20 #include "llvm/ADT/StringRef.h"
21 #include "llvm/Support/CodeGen.h"
23 #include <memory>
24 
25 namespace llvm {
26 
28  bool isLittle;
29  std::unique_ptr<TargetLoweringObjectFile> TLOF;
30  // Selected ABI
31  MipsABIInfo ABI;
32  const MipsSubtarget *Subtarget;
33  MipsSubtarget DefaultSubtarget;
34  MipsSubtarget NoMips16Subtarget;
35  MipsSubtarget Mips16Subtarget;
36 
37  mutable StringMap<std::unique_ptr<MipsSubtarget>> SubtargetMap;
38 
39 public:
40  MipsTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
41  StringRef FS, const TargetOptions &Options,
43  CodeGenOpt::Level OL, bool JIT, bool isLittle);
44  ~MipsTargetMachine() override;
45 
47 
49  if (Subtarget)
50  return Subtarget;
51  return &DefaultSubtarget;
52  }
53 
54  const MipsSubtarget *getSubtargetImpl(const Function &F) const override;
55 
56  /// Reset the subtarget for the Mips target.
58 
59  // Pass Pipeline Configuration
61 
63  return TLOF.get();
64  }
65 
66  bool isLittleEndian() const { return isLittle; }
67  const MipsABIInfo &getABI() const { return ABI; }
68 };
69 
70 /// Mips32/64 big endian target machine.
71 ///
73  virtual void anchor();
74 
75 public:
76  MipsebTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
77  StringRef FS, const TargetOptions &Options,
79  CodeGenOpt::Level OL, bool JIT);
80 };
81 
82 /// Mips32/64 little endian target machine.
83 ///
85  virtual void anchor();
86 
87 public:
88  MipselTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
89  StringRef FS, const TargetOptions &Options,
91  CodeGenOpt::Level OL, bool JIT);
92 };
93 
94 } // end namespace llvm
95 
96 #endif // LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
void resetSubtarget(MachineFunction *MF)
Reset the subtarget for the Mips target.
F(f)
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
Target-Independent Code Generator Pass Configuration Options.
const MipsABIInfo & getABI() const
const MipsSubtarget * getSubtargetImpl() const
~MipsTargetMachine() override
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
TargetLoweringObjectFile * getObjFileLowering() const override
Mips32/64 big endian target machine.
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
Mips32/64 little endian target machine.
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
StringMap - This is an unconventional map that is specialized for handling keys that are "strings"...
Definition: StringMap.h:242
Target - Wrapper for Target specific information.
TargetOptions Options
MipsTargetMachine(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, bool isLittle)
TargetTransformInfo getTargetTransformInfo(const Function &F) override
Get a TargetTransformInfo implementation for the target.
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48