clang 17.0.0git
LangStandards.cpp
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1//===--- LangStandards.cpp - Language Standard Definitions ----------------===//
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
10#include "clang/Config/config.h"
11#include "llvm/ADT/StringSwitch.h"
12#include "llvm/Support/ErrorHandling.h"
13#include "llvm/TargetParser/Triple.h"
14using namespace clang;
15
16#define LANGSTANDARD(id, name, lang, desc, features) \
17 static const LangStandard Lang_##id = {name, desc, features, Language::lang};
18#include "clang/Basic/LangStandards.def"
19
21 switch (K) {
23 llvm::report_fatal_error("getLangStandardForKind() on unspecified kind");
24#define LANGSTANDARD(id, name, lang, desc, features) \
25 case lang_##id: return Lang_##id;
26#include "clang/Basic/LangStandards.def"
27 }
28 llvm_unreachable("Invalid language kind!");
29}
30
32 return llvm::StringSwitch<Kind>(Name)
33#define LANGSTANDARD(id, name, lang, desc, features) .Case(name, lang_##id)
34#define LANGSTANDARD_ALIAS(id, alias) .Case(alias, lang_##id)
35#include "clang/Basic/LangStandards.def"
36 .Default(lang_unspecified);
37}
38
40 Kind K = getLangKind(Name);
41 if (K == lang_unspecified)
42 return nullptr;
43
44 return &getLangStandardForKind(K);
45}
46
48 const llvm::Triple &T) {
49 switch (Lang) {
52 llvm_unreachable("Invalid input kind!");
54 return LangStandard::lang_opencl12;
56 return LangStandard::lang_openclcpp10;
57 case Language::CUDA:
58 return LangStandard::lang_cuda;
59 case Language::Asm:
60 case Language::C:
61 // The PS4 uses C99 as the default C standard.
62 if (T.isPS4())
63 return LangStandard::lang_gnu99;
64 return LangStandard::lang_gnu17;
65 case Language::ObjC:
66 return LangStandard::lang_gnu11;
67 case Language::CXX:
69 if (T.isPS())
70 return LangStandard::lang_gnucxx14;
71 return LangStandard::lang_gnucxx17;
73 return LangStandard::lang_c99;
74 case Language::HIP:
75 return LangStandard::lang_hip;
76 case Language::HLSL:
77 return LangStandard::lang_hlsl2021;
78 }
79 llvm_unreachable("unhandled Language kind!");
80}
LangStandard::Kind getDefaultLanguageStandard(clang::Language Lang, const llvm::Triple &T)
Language
The language for the input, used to select and validate the language standard and possible actions.
Definition: LangStandard.h:23
@ C
Languages that the frontend can parse and compile.
@ LLVM_IR
LLVM IR: we accept this so that we can run the optimizer on it, and compile it to assembly or object ...
@ Asm
Assembly: we accept this only so that we can preprocess it.
LangStandard - Information about the properties of a particular language standard.
Definition: LangStandard.h:69
static const LangStandard * getLangStandardForName(StringRef Name)
static const LangStandard & getLangStandardForKind(Kind K)
static Kind getLangKind(StringRef Name)