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"
21 #include "llvm/CodeGen/ValueTypes.h"
30 /// getValueType - Return the MVT::ValueType that the specified TableGen record
32 MVT::ValueType getValueType(Record *Rec);
34 std::ostream &operator<<(std::ostream &OS, MVT::ValueType T);
35 std::string getName(MVT::ValueType T);
36 std::string getEnumName(MVT::ValueType T);
39 /// CodeGenTarget - This class corresponds to the Target class in the .td files.
43 std::vector<Record*> CalleeSavedRegisters;
44 MVT::ValueType PointerType;
46 mutable std::map<std::string, CodeGenInstruction> Instructions;
47 void ReadInstructions() const;
51 Record *getTargetRecord() const { return TargetRec; }
52 const std::string &getName() const;
54 const std::vector<Record*> &getCalleeSavedRegisters() const {
55 return CalleeSavedRegisters;
58 MVT::ValueType getPointerType() const { return PointerType; }
60 // getInstructionSet - Return the InstructionSet object.
62 Record *getInstructionSet() const;
64 /// getPHIInstruction - Return the designated PHI instruction.
65 const CodeGenInstruction &getPHIInstruction() const;
67 /// getInstructions - Return all of the instructions defined for this target.
69 const std::map<std::string, CodeGenInstruction> &getInstructions() const {
70 if (Instructions.empty()) ReadInstructions();
74 typedef std::map<std::string,
75 CodeGenInstruction>::const_iterator inst_iterator;
76 inst_iterator inst_begin() const { return getInstructions().begin(); }
77 inst_iterator inst_end() const { return Instructions.end(); }
80 } // End llvm namespace