51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
//===-- RISCVISAUtils.h - RISC-V ISA Utilities ------------------*- 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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// Utilities shared by TableGen and RISCVISAInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_RISCVISAUTILS_H
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#define LLVM_SUPPORT_RISCVISAUTILS_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Compiler.h"
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#include <map>
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#include <string>
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namespace llvm {
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namespace RISCVISAUtils {
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constexpr StringLiteral AllStdExts = "mafdqlcbkjtpvnh";
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/// Represents the major and version number components of a RISC-V extension.
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struct ExtensionVersion {
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unsigned Major;
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unsigned Minor;
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};
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LLVM_ABI bool compareExtension(const std::string &LHS, const std::string &RHS);
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/// Helper class for OrderedExtensionMap.
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struct ExtensionComparator {
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bool operator()(const std::string &LHS, const std::string &RHS) const {
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return compareExtension(LHS, RHS);
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}
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};
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/// OrderedExtensionMap is std::map, it's specialized to keep entries
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/// in canonical order of extension.
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using OrderedExtensionMap =
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std::map<std::string, ExtensionVersion, ExtensionComparator>;
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} // namespace RISCVISAUtils
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} // namespace llvm
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#endif
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