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