diff options
Diffstat (limited to 'clang/lib/Lex/PPMacroExpansion.cpp')
| -rw-r--r-- | clang/lib/Lex/PPMacroExpansion.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/clang/lib/Lex/PPMacroExpansion.cpp b/clang/lib/Lex/PPMacroExpansion.cpp index f3be2107f985..c56f41c4495e 100644 --- a/clang/lib/Lex/PPMacroExpansion.cpp +++ b/clang/lib/Lex/PPMacroExpansion.cpp @@ -387,6 +387,10 @@ void Preprocessor::RegisterBuiltinMacros() { Ident__is_target_os = RegisterBuiltinMacro(*this, "__is_target_os"); Ident__is_target_environment = RegisterBuiltinMacro(*this, "__is_target_environment"); + Ident__is_target_variant_os = + RegisterBuiltinMacro(*this, "__is_target_variant_os"); + Ident__is_target_variant_environment = + RegisterBuiltinMacro(*this, "__is_target_variant_environment"); // Modules. Ident__building_module = RegisterBuiltinMacro(*this, "__building_module"); @@ -1431,6 +1435,39 @@ static bool isTargetEnvironment(const TargetInfo &TI, return TI.getTriple().getEnvironment() == Env.getEnvironment(); } +/// Implements the __is_target_variant_os builtin macro. +static bool isTargetVariantOS(const TargetInfo &TI, const IdentifierInfo *II) { + if (TI.getTriple().isOSDarwin()) { + const llvm::Triple *VariantTriple = TI.getDarwinTargetVariantTriple(); + if (!VariantTriple) + return false; + + std::string OSName = + (llvm::Twine("unknown-unknown-") + II->getName().lower()).str(); + llvm::Triple OS(OSName); + if (OS.getOS() == llvm::Triple::Darwin) { + // Darwin matches macos, ios, etc. + return VariantTriple->isOSDarwin(); + } + return VariantTriple->getOS() == OS.getOS(); + } + return false; +} + +/// Implements the __is_target_variant_environment builtin macro. +static bool isTargetVariantEnvironment(const TargetInfo &TI, + const IdentifierInfo *II) { + if (TI.getTriple().isOSDarwin()) { + const llvm::Triple *VariantTriple = TI.getDarwinTargetVariantTriple(); + if (!VariantTriple) + return false; + std::string EnvName = (llvm::Twine("---") + II->getName().lower()).str(); + llvm::Triple Env(EnvName); + return VariantTriple->getEnvironment() == Env.getEnvironment(); + } + return false; +} + /// ExpandBuiltinMacro - If an identifier token is read that is to be expanded /// as a builtin macro, handle it and return the next token as 'Tok'. void Preprocessor::ExpandBuiltinMacro(Token &Tok) { @@ -1677,6 +1714,8 @@ void Preprocessor::ExpandBuiltinMacro(Token &Tok) { .Case("__is_target_vendor", true) .Case("__is_target_os", true) .Case("__is_target_environment", true) + .Case("__is_target_variant_os", true) + .Case("__is_target_variant_environment", true) .Default(false); } }); @@ -1877,6 +1916,22 @@ void Preprocessor::ExpandBuiltinMacro(Token &Tok) { Tok, *this, diag::err_feature_check_malformed); return II && isTargetEnvironment(getTargetInfo(), II); }); + } else if (II == Ident__is_target_variant_os) { + EvaluateFeatureLikeBuiltinMacro( + OS, Tok, II, *this, false, + [this](Token &Tok, bool &HasLexedNextToken) -> int { + IdentifierInfo *II = ExpectFeatureIdentifierInfo( + Tok, *this, diag::err_feature_check_malformed); + return II && isTargetVariantOS(getTargetInfo(), II); + }); + } else if (II == Ident__is_target_variant_environment) { + EvaluateFeatureLikeBuiltinMacro( + OS, Tok, II, *this, false, + [this](Token &Tok, bool &HasLexedNextToken) -> int { + IdentifierInfo *II = ExpectFeatureIdentifierInfo( + Tok, *this, diag::err_feature_check_malformed); + return II && isTargetVariantEnvironment(getTargetInfo(), II); + }); } else { llvm_unreachable("Unknown identifier!"); } |