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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
70 lines
2.5 KiB
C++
70 lines
2.5 KiB
C++
//===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes the target intrinsic instructions to the code generator.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TARGET_TARGETINTRINSICINFO_H
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#define LLVM_TARGET_TARGETINTRINSICINFO_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Compiler.h"
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#include <string>
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namespace llvm {
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class Function;
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class Module;
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class Type;
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//---------------------------------------------------------------------------
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///
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/// TargetIntrinsicInfo - Interface to description of machine instruction set
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///
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class TargetIntrinsicInfo {
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TargetIntrinsicInfo(const TargetIntrinsicInfo &) = delete;
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void operator=(const TargetIntrinsicInfo &) = delete;
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public:
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TargetIntrinsicInfo();
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virtual ~TargetIntrinsicInfo();
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/// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync".
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/// The Tys and numTys parameters are for intrinsics with overloaded types
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/// (e.g., those using iAny or fAny). For a declaration for an overloaded
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/// intrinsic, Tys should point to an array of numTys pointers to Type,
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/// and must provide exactly one type for each overloaded type in the
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/// intrinsic.
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virtual std::string getName(unsigned IID, Type **Tys = nullptr,
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unsigned numTys = 0) const = 0;
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/// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown
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/// names.
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virtual unsigned lookupName(const char *Name, unsigned Len) const =0;
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unsigned lookupName(StringRef Name) const {
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return lookupName(Name.data(), Name.size());
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}
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/// Return the target intrinsic ID of a function, or 0.
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virtual unsigned getIntrinsicID(const Function *F) const;
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/// Returns true if the intrinsic can be overloaded.
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virtual bool isOverloaded(unsigned IID) const = 0;
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/// Create or insert an LLVM Function declaration for an intrinsic,
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/// and return it. The Tys and numTys are for intrinsics with overloaded
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/// types. See above for more information.
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virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = nullptr,
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unsigned numTys = 0) const = 0;
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};
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} // End llvm namespace
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#endif
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