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 "llvm/Support/Compiler.h" 18 #include <string> 19 20 namespace llvm { 21 22 class Function; 23 class Module; 24 class Type; 25 26 //--------------------------------------------------------------------------- 27 /// 28 /// TargetIntrinsicInfo - Interface to description of machine instruction set 29 /// 30 class TargetIntrinsicInfo { 31 TargetIntrinsicInfo(const TargetIntrinsicInfo &) LLVM_DELETED_FUNCTION; 32 void operator=(const TargetIntrinsicInfo &) LLVM_DELETED_FUNCTION; 33 public: 34 TargetIntrinsicInfo(); 35 virtual ~TargetIntrinsicInfo(); 36 37 /// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync". 38 /// The Tys and numTys parameters are for intrinsics with overloaded types 39 /// (e.g., those using iAny or fAny). For a declaration for an overloaded 40 /// intrinsic, Tys should point to an array of numTys pointers to Type, 41 /// and must provide exactly one type for each overloaded type in the 42 /// intrinsic. 43 virtual std::string getName(unsigned IID, Type **Tys = 0, 44 unsigned numTys = 0) const = 0; 45 46 /// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown 47 /// names. 48 virtual unsigned lookupName(const char *Name, unsigned Len) const =0; 49 50 /// Return the target intrinsic ID of a function, or 0. 51 virtual unsigned getIntrinsicID(Function *F) const; 52 53 /// Returns true if the intrinsic can be overloaded. 54 virtual bool isOverloaded(unsigned IID) const = 0; 55 56 /// Create or insert an LLVM Function declaration for an intrinsic, 57 /// and return it. The Tys and numTys are for intrinsics with overloaded 58 /// types. See above for more information. 59 virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = 0, 60 unsigned numTys = 0) const = 0; 61 }; 62 63 } // End llvm namespace 64 65 #endif 66
