1 //===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- 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 describes the target intrinsic instructions to the code generator. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_TARGET_TARGETINTRINSICINFO_H 15 #define LLVM_TARGET_TARGETINTRINSICINFO_H 16 17 #include <string> 18 19 namespace llvm { 20 21 class Function; 22 class Module; 23 class Type; 24 25 //--------------------------------------------------------------------------- 26 /// 27 /// TargetIntrinsicInfo - Interface to description of machine instruction set 28 /// 29 class TargetIntrinsicInfo { 30 TargetIntrinsicInfo(const TargetIntrinsicInfo &); // DO NOT IMPLEMENT 31 void operator=(const TargetIntrinsicInfo &); // DO NOT IMPLEMENT 32 public: 33 TargetIntrinsicInfo(); 34 virtual ~TargetIntrinsicInfo(); 35 36 /// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync". 37 /// The Tys and numTys parameters are for intrinsics with overloaded types 38 /// (e.g., those using iAny or fAny). For a declaration for an overloaded 39 /// intrinsic, Tys should point to an array of numTys pointers to Type, 40 /// and must provide exactly one type for each overloaded type in the 41 /// intrinsic. 42 virtual std::string getName(unsigned IID, Type **Tys = 0, 43 unsigned numTys = 0) const = 0; 44 45 /// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown 46 /// names. 47 virtual unsigned lookupName(const char *Name, unsigned Len) const =0; 48 49 /// Return the target intrinsic ID of a function, or 0. 50 virtual unsigned getIntrinsicID(Function *F) const; 51 52 /// Returns true if the intrinsic can be overloaded. 53 virtual bool isOverloaded(unsigned IID) const = 0; 54 55 /// Create or insert an LLVM Function declaration for an intrinsic, 56 /// and return it. The Tys and numTys are for intrinsics with overloaded 57 /// types. See above for more information. 58 virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = 0, 59 unsigned numTys = 0) const = 0; 60 }; 61 62 } // End llvm namespace 63 64 #endif 65
