llvm/lib/TargetParser/LoongArchTargetParser.cpp

   1 //==-- LoongArch64TargetParser - Parser for LoongArch64 features --*- C++ -*-=//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements a target parser to recognise LoongArch hardware features
  10 // such as CPU/ARCH and extension names.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/TargetParser/LoongArchTargetParser.h"
  15
  16 using namespace llvm;
  17 using namespace llvm::LoongArch;
  18
  19 const FeatureInfo AllFeatures[] = {
  20 #define LOONGARCH_FEATURE(NAME, KIND) {NAME, KIND},
  21 #include "llvm/TargetParser/LoongArchTargetParser.def"
  22 };
  23
  24 const ArchInfo AllArchs[] = {
  25 #define LOONGARCH_ARCH(NAME, KIND, FEATURES)                                   \
  26   {NAME, LoongArch::ArchKind::KIND, FEATURES},
  27 #include "llvm/TargetParser/LoongArchTargetParser.def"
  28 };
  29
  30 LoongArch::ArchKind LoongArch::parseArch(StringRef Arch) {
  31   for (const auto A : AllArchs)
  32     if (A.Name == Arch)
  33       return A.Kind;
  34
  35   return LoongArch::ArchKind::AK_INVALID;
  36 }
  37
  38 bool LoongArch::getArchFeatures(StringRef Arch,
  39                                 std::vector<StringRef> &Features) {
  40   for (const auto A : AllArchs) {
  41     if (A.Name == Arch) {
  42       for (const auto F : AllFeatures)
  43         if ((A.Features & F.Kind) == F.Kind && F.Kind != FK_INVALID)
  44           Features.push_back(F.Name);
  45       return true;
  46     }
  47   }
  48   return false;
  49 }