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//===--- LangStandards.cpp - Language Standard Definitions ----------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "clang/Basic/LangStandard.h"
#include "clang/Config/config.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/ErrorHandling.h"
using namespace clang;
#define LANGSTANDARD(id, name, lang, desc, features) \
static const LangStandard Lang_##id = {name, desc, features, Language::lang};
#include "clang/Basic/LangStandards.def"
const LangStandard &LangStandard::getLangStandardForKind(Kind K) {
switch (K) {
case lang_unspecified:
llvm::report_fatal_error("getLangStandardForKind() on unspecified kind");
#define LANGSTANDARD(id, name, lang, desc, features) \
case lang_##id: return Lang_##id;
#include "clang/Basic/LangStandards.def"
}
llvm_unreachable("Invalid language kind!");
}
LangStandard::Kind LangStandard::getLangKind(StringRef Name) {
return llvm::StringSwitch<Kind>(Name)
#define LANGSTANDARD(id, name, lang, desc, features) .Case(name, lang_##id)
#define LANGSTANDARD_ALIAS(id, alias) .Case(alias, lang_##id)
#include "clang/Basic/LangStandards.def"
.Default(lang_unspecified);
}
const LangStandard *LangStandard::getLangStandardForName(StringRef Name) {
Kind K = getLangKind(Name);
if (K == lang_unspecified)
return nullptr;
return &getLangStandardForKind(K);
}
LangStandard::Kind clang::getDefaultLanguageStandard(clang::Language Lang,
const llvm::Triple &T) {
switch (Lang) {
case Language::Unknown:
case Language::LLVM_IR:
llvm_unreachable("Invalid input kind!");
case Language::OpenCL:
return LangStandard::lang_opencl12;
case Language::OpenCLCXX:
return LangStandard::lang_openclcpp10;
case Language::CUDA:
return LangStandard::lang_cuda;
case Language::Asm:
case Language::C:
if (CLANG_DEFAULT_STD_C != LangStandard::lang_unspecified)
return CLANG_DEFAULT_STD_C;
// The PS4 and PS5 use C99 as the default C standard.
if (T.isPS())
return LangStandard::lang_gnu99;
return LangStandard::lang_gnu17;
case Language::ObjC:
if (CLANG_DEFAULT_STD_C != LangStandard::lang_unspecified)
return CLANG_DEFAULT_STD_C;
return LangStandard::lang_gnu11;
case Language::CXX:
case Language::ObjCXX:
if (CLANG_DEFAULT_STD_CXX != LangStandard::lang_unspecified)
return CLANG_DEFAULT_STD_CXX;
if (T.isDriverKit())
return LangStandard::lang_gnucxx17;
else
return LangStandard::lang_gnucxx14;
case Language::RenderScript:
return LangStandard::lang_c99;
case Language::HIP:
return LangStandard::lang_hip;
case Language::HLSL:
return LangStandard::lang_hlsl2021;
}
llvm_unreachable("unhandled Language kind!");
}