llvm/lib/TargetParser/LoongArchTargetParser.cpp

   1 //===-- LoongArchTargetParser - Parser for LoongArch 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 bool LoongArch::isValidArchName(StringRef Arch) {
  31   for (const auto A : AllArchs)
  32     if (A.Name == Arch)
  33       return true;
  34   return false;
  35 }
  36
  37 bool LoongArch::getArchFeatures(StringRef Arch,
  38                                 std::vector<StringRef> &Features) {
  39   for (const auto A : AllArchs) {
  40     if (A.Name == Arch) {
  41       for (const auto F : AllFeatures)
  42         if ((A.Features & F.Kind) == F.Kind)
  43           Features.push_back(F.Name);
  44       return true;
  45     }
  46   }
  47   return false;
  48 }
  49
  50 bool LoongArch::isValidCPUName(StringRef Name) { return isValidArchName(Name); }
  51
  52 void LoongArch::fillValidCPUList(SmallVectorImpl<StringRef> &Values) {
  53   for (const auto A : AllArchs)
  54     Values.emplace_back(A.Name);
  55 }
  56
  57 StringRef LoongArch::getDefaultArch(bool Is64Bit) {
  58   // TODO: use a real 32-bit arch name.
  59   return Is64Bit ? "loongarch64" : "";
  60 }