LLVM API Documentation

SparcV9TmpInstr.h

Go to the documentation of this file.
00001 //===-- SparcV9TmpInstr.h ---------------------------------------*- C++ -*-===//
00002 //
00003 //                     The LLVM Compiler Infrastructure
00004 //
00005 // This file was developed by the LLVM research group and is distributed under
00006 // the University of Illinois Open Source License. See LICENSE.TXT for details.
00007 //
00008 //===----------------------------------------------------------------------===//
00009 //
00010 // Definition of class for temporary intermediate values used within the current
00011 // SparcV9 backend.
00012 //
00013 //===----------------------------------------------------------------------===//
00014 
00015 #ifndef SPARCV9TMPINSTR_H
00016 #define SPARCV9TMPINSTR_H
00017 
00018 #include "llvm/Instruction.h"
00019 #include "MachineCodeForInstruction.h"
00020 
00021 namespace llvm {
00022 
00023 /// TmpInstruction - This class represents temporary intermediate
00024 /// values used within the SparcV9 machine code for an LLVM instruction.
00025 ///
00026 class TmpInstruction : public Instruction {
00027   Use Ops[2];
00028   TmpInstruction(const TmpInstruction &TI);
00029 public:
00030   // Constructor that uses the type of S1 as the type of the temporary.
00031   // s1 must be a valid value.  s2 may be NULL.
00032   TmpInstruction(MachineCodeForInstruction &mcfi,
00033                  Value *s1, Value *s2 = 0, const std::string &name = "");
00034 
00035   // Constructor that uses the type of S1 as the type of the temporary,
00036   // but does not require a MachineCodeForInstruction.
00037   // s1 must be a valid value.  s2 may be NULL.
00038   TmpInstruction(Value *s1, Value *s2 = 0, const std::string &name = "");
00039 
00040   // Constructor that requires the type of the temporary to be specified.
00041   // Both S1 and S2 may be NULL.
00042   TmpInstruction(MachineCodeForInstruction& mcfi,
00043                  const Type *Ty, Value *s1 = 0, Value* s2 = 0,
00044                  const std::string &name = "");
00045 
00046   virtual Instruction *clone() const {
00047     assert(0 && "Cannot clone TmpInstructions!");
00048     return 0;
00049   }
00050   virtual const char *getOpcodeName() const { return "TmpInstruction"; }
00051 
00052   // Methods for support type inquiry through isa, cast, and dyn_cast:
00053   static inline bool classof(const TmpInstruction *) { return true; }
00054   static inline bool classof(const Instruction *I) {
00055     return (I->getOpcode() == Instruction::UserOp1);
00056   }
00057   static inline bool classof(const Value *V) {
00058     return isa<Instruction>(V) && classof(cast<Instruction>(V));
00059   }
00060 };
00061 
00062 } // End llvm namespace
00063 
00064 #endif