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//===-- 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
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