1 //===- CodeGenTarget.h - Target Class Wrapper -------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines wrappers for the Target class and related global
11 // functionality. This makes it easier to access the data and provides a single
12 // place that needs to check it for validity. All of these classes throw
13 // exceptions on error conditions.
15 //===----------------------------------------------------------------------===//
17 #ifndef CODEGEN_TARGET_H
18 #define CODEGEN_TARGET_H
20 #include "CodeGenInstruction.h"
29 /// getValueType - Return the MVT::ValueType that the specified TableGen record
31 MVT::ValueType getValueType(Record *Rec);
33 std::ostream &operator<<(std::ostream &OS, MVT::ValueType T);
34 std::string getName(MVT::ValueType T);
35 std::string getEnumName(MVT::ValueType T);
38 /// CodeGenTarget - This class corresponds to the Target class in the .td files.
42 std::vector<Record*> CalleeSavedRegisters;
43 MVT::ValueType PointerType;
45 mutable std::map<std::string, CodeGenInstruction> Instructions;
46 void ReadInstructions() const;
50 Record *getTargetRecord() const { return TargetRec; }
51 const std::string &getName() const;
53 const std::vector<Record*> &getCalleeSavedRegisters() const {
54 return CalleeSavedRegisters;
57 MVT::ValueType getPointerType() const { return PointerType; }
59 /// getInstructionSet - Return the InstructionSet object.
61 Record *getInstructionSet() const;
63 /// getAsmWriter - Return the AssemblyWriter definition for this target.
65 Record *getAsmWriter() const;
67 /// getPHIInstruction - Return the designated PHI instruction.
68 const CodeGenInstruction &getPHIInstruction() const;
70 /// getInstructions - Return all of the instructions defined for this target.
72 const std::map<std::string, CodeGenInstruction> &getInstructions() const {
73 if (Instructions.empty()) ReadInstructions();
77 typedef std::map<std::string,
78 CodeGenInstruction>::const_iterator inst_iterator;
79 inst_iterator inst_begin() const { return getInstructions().begin(); }
80 inst_iterator inst_end() const { return Instructions.end(); }
83 } // End llvm namespace