//===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // // This file describes the target intrinsic instructions to the code generator. // //===----------------------------------------------------------------------===// #ifndef LLVM_TARGET_TARGETINTRINSICINFO_H #define LLVM_TARGET_TARGETINTRINSICINFO_H #include "llvm/ADT/StringRef.h" #include <string> namespace llvm { class Function; class Module; class Type; //--------------------------------------------------------------------------- /// /// TargetIntrinsicInfo - Interface to description of machine instruction set /// class TargetIntrinsicInfo { TargetIntrinsicInfo(const TargetIntrinsicInfo &) = delete; void operator=(const TargetIntrinsicInfo &) = delete; public: TargetIntrinsicInfo(); virtual ~TargetIntrinsicInfo(); /// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync". /// The Tys and numTys parameters are for intrinsics with overloaded types /// (e.g., those using iAny or fAny). For a declaration for an overloaded /// intrinsic, Tys should point to an array of numTys pointers to Type, /// and must provide exactly one type for each overloaded type in the /// intrinsic. virtual std::string getName(unsigned IID, Type **Tys = nullptr, unsigned numTys = 0) const = 0; /// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown /// names. virtual unsigned lookupName(const char *Name, unsigned Len) const =0; unsigned lookupName(StringRef Name) const { return lookupName(Name.data(), Name.size()); } /// Return the target intrinsic ID of a function, or 0. virtual unsigned getIntrinsicID(const Function *F) const; /// Returns true if the intrinsic can be overloaded. virtual bool isOverloaded(unsigned IID) const = 0; /// Create or insert an LLVM Function declaration for an intrinsic, /// and return it. The Tys and numTys are for intrinsics with overloaded /// types. See above for more information. virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = nullptr, unsigned numTys = 0) const = 0; }; } // End llvm namespace #endif |