r320089 - Add new language mode flags for C17.

Ahmed Bougacha via cfe-commits cfe-commits at lists.llvm.org
Thu Dec 7 14:59:03 PST 2017


On Thu, Dec 7, 2017 at 2:56 PM, Richard Smith via cfe-commits
<cfe-commits at lists.llvm.org> wrote:
> Looks like this might have messed up the line endings in a few files?

Should be taken care of in r320112.

-Ahmed

> On 7 December 2017 at 13:46, Aaron Ballman via cfe-commits
> <cfe-commits at lists.llvm.org> wrote:
>>
>> Author: aaronballman
>> Date: Thu Dec  7 13:46:26 2017
>> New Revision: 320089
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=320089&view=rev
>> Log:
>> Add new language mode flags for C17.
>>
>> This adds -std=c17, -std=gnu17, and -std=iso9899:2017 as language mode
>> flags for C17 and updates the value of __STDC_VERSION__ to the value based
>> on the C17 FDIS. Given that this ballot cannot succeed until 2018, it is
>> expected that we (and GCC) will add c18 flags as aliases once the ballot
>> passes.
>>
>> Modified:
>>     cfe/trunk/docs/ReleaseNotes.rst
>>     cfe/trunk/include/clang/Basic/LangOptions.def
>>     cfe/trunk/include/clang/Frontend/LangStandard.h
>>     cfe/trunk/include/clang/Frontend/LangStandards.def
>>     cfe/trunk/lib/Frontend/CompilerInvocation.cpp
>>     cfe/trunk/lib/Frontend/InitPreprocessor.cpp
>>     cfe/trunk/test/Driver/unknown-std.c
>>
>> Modified: cfe/trunk/docs/ReleaseNotes.rst
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/ReleaseNotes.rst?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/docs/ReleaseNotes.rst (original)
>> +++ cfe/trunk/docs/ReleaseNotes.rst Thu Dec  7 13:46:26 2017
>> @@ -121,6 +121,12 @@ New Compiler Flags
>>    number of attributes are supported outside of C++ mode. See the Clang
>>    attribute documentation for more information about which attributes are
>>    supported for each syntax.
>> +
>> +- Added the ``-std=c17``, ``-std=gnu17``, and ``-std=iso9899:2017``
>> language
>> +  mode flags for compatibility with GCC. This enables support for the
>> next
>> +  version of the C standard, expected to be published by ISO in 2018. The
>> only
>> +  difference between the ``-std=c17`` and ``-std=c11`` language modes is
>> the
>> +  value of the ``__STDC_VERSION__`` macro, as C17 is a bug fix release.
>>
>>  Deprecated Compiler Flags
>>  -------------------------
>>
>> Modified: cfe/trunk/include/clang/Basic/LangOptions.def
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.def?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Basic/LangOptions.def (original)
>> +++ cfe/trunk/include/clang/Basic/LangOptions.def Thu Dec  7 13:46:26 2017
>> @@ -1,187 +1,188 @@
>> -//===--- LangOptions.def - Language option database -------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -//
>> -// This file defines the language options. Users of this file must
>> -// define the LANGOPT macro to make use of this information.
>> -//
>> -// Optionally, the user may also define:
>> -//
>> -// BENIGN_LANGOPT: for options that don't affect the construction of the
>> AST in
>> -//     any way (that is, the value can be different between an implicit
>> module
>> -//     and the user of that module).
>> -//
>> -// COMPATIBLE_LANGOPT: for options that affect the construction of the
>> AST in
>> -//     a way that doesn't prevent interoperability (that is, the value
>> can be
>> -//     different between an explicit module and the user of that module).
>> -//
>> -// ENUM_LANGOPT: for options that have enumeration, rather than unsigned,
>> type.
>> -//
>> -// VALUE_LANGOPT: for options that describe a value rather than a flag.
>> -//
>> -// BENIGN_ENUM_LANGOPT, COMPATIBLE_ENUM_LANGOPT,
>> -// BENIGN_VALUE_LANGOPT, COMPATIBLE_VALUE_LANGOPT: combinations of the
>> above.
>> -//
>> -// FIXME: Clients should be able to more easily select whether they want
>> -// different levels of compatibility versus how to handle different kinds
>> -// of option.
>> -//
>> -// The Description field should be a noun phrase, for instance "frobbing
>> all
>> -// widgets" or "C's implicit blintz feature".
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#ifndef LANGOPT
>> -#  error Define the LANGOPT macro to handle language options
>> -#endif
>> -
>> -#ifndef COMPATIBLE_LANGOPT
>> -#  define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \
>> -     LANGOPT(Name, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef BENIGN_LANGOPT
>> -#  define BENIGN_LANGOPT(Name, Bits, Default, Description) \
>> -     COMPATIBLE_LANGOPT(Name, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef ENUM_LANGOPT
>> -#  define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
>> -     LANGOPT(Name, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef COMPATIBLE_ENUM_LANGOPT
>> -#  define COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
>> \
>> -     ENUM_LANGOPT(Name, Type, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef BENIGN_ENUM_LANGOPT
>> -#  define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
>> -     COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef VALUE_LANGOPT
>> -#  define VALUE_LANGOPT(Name, Bits, Default, Description) \
>> -     LANGOPT(Name, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef COMPATIBLE_VALUE_LANGOPT
>> -#  define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \
>> -     VALUE_LANGOPT(Name, Bits, Default, Description)
>> -#endif
>> -
>> -#ifndef BENIGN_VALUE_LANGOPT
>> -#  define BENIGN_VALUE_LANGOPT(Name, Bits, Default, Description) \
>> -     COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description)
>> -#endif
>> -
>> -// FIXME: A lot of the BENIGN_ options should be COMPATIBLE_ instead.
>> -LANGOPT(C99               , 1, 0, "C99")
>> -LANGOPT(C11               , 1, 0, "C11")
>> -LANGOPT(MSVCCompat        , 1, 0, "Microsoft Visual C++ full
>> compatibility mode")
>> -LANGOPT(MicrosoftExt      , 1, 0, "Microsoft C++ extensions")
>> -LANGOPT(AsmBlocks         , 1, 0, "Microsoft inline asm blocks")
>> -LANGOPT(Borland           , 1, 0, "Borland extensions")
>> -LANGOPT(CPlusPlus         , 1, 0, "C++")
>> -LANGOPT(CPlusPlus11       , 1, 0, "C++11")
>> -LANGOPT(CPlusPlus14       , 1, 0, "C++14")
>> -LANGOPT(CPlusPlus17       , 1, 0, "C++17")
>> -LANGOPT(CPlusPlus2a       , 1, 0, "C++2a")
>> -LANGOPT(ObjC1             , 1, 0, "Objective-C 1")
>> -LANGOPT(ObjC2             , 1, 0, "Objective-C 2")
>> -BENIGN_LANGOPT(ObjCDefaultSynthProperties , 1, 0,
>> -               "Objective-C auto-synthesized properties")
>> -BENIGN_LANGOPT(EncodeExtendedBlockSig , 1, 0,
>> -               "Encoding extended block type signature")
>> -BENIGN_LANGOPT(ObjCInferRelatedResultType , 1, 1,
>> -               "Objective-C related result type inference")
>> -LANGOPT(AppExt , 1, 0, "Objective-C App Extension")
>> -LANGOPT(Trigraphs         , 1, 0,"trigraphs")
>> -LANGOPT(LineComment       , 1, 0, "'//' comments")
>> -LANGOPT(Bool              , 1, 0, "bool, true, and false keywords")
>> -LANGOPT(Half              , 1, 0, "half keyword")
>> -LANGOPT(WChar             , 1, CPlusPlus, "wchar_t keyword")
>> -LANGOPT(DeclSpecKeyword   , 1, 0, "__declspec keyword")
>> -BENIGN_LANGOPT(DollarIdents   , 1, 1, "'$' in identifiers")
>> -BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode")
>> -LANGOPT(GNUMode           , 1, 1, "GNU extensions")
>> -LANGOPT(GNUKeywords       , 1, 1, "GNU keywords")
>> -BENIGN_LANGOPT(ImplicitInt, 1, !C99 && !CPlusPlus, "C89 implicit 'int'")
>> -LANGOPT(Digraphs          , 1, 0, "digraphs")
>> -BENIGN_LANGOPT(HexFloats  , 1, C99, "C99 hexadecimal float constants")
>> -LANGOPT(CXXOperatorNames  , 1, 0, "C++ operator name keywords")
>> -LANGOPT(AppleKext         , 1, 0, "Apple kext support")
>> -BENIGN_LANGOPT(PascalStrings, 1, 0, "Pascal string support")
>> -LANGOPT(WritableStrings   , 1, 0, "writable string support")
>> -LANGOPT(ConstStrings      , 1, 0, "const-qualified string support")
>> -LANGOPT(LaxVectorConversions , 1, 1, "lax vector conversions")
>> -LANGOPT(AltiVec           , 1, 0, "AltiVec-style vector initializers")
>> -LANGOPT(ZVector           , 1, 0, "System z vector extensions")
>> -LANGOPT(Exceptions        , 1, 0, "exception handling")
>> -LANGOPT(ObjCExceptions    , 1, 0, "Objective-C exceptions")
>> -LANGOPT(CXXExceptions     , 1, 0, "C++ exceptions")
>> -LANGOPT(DWARFExceptions   , 1, 0, "dwarf exception handling")
>> -LANGOPT(SjLjExceptions    , 1, 0, "setjmp-longjump exception handling")
>> -LANGOPT(SEHExceptions     , 1, 0, "SEH .xdata exception handling")
>> -LANGOPT(ExternCNoUnwind   , 1, 0, "Assume extern C functions don't
>> unwind")
>> -LANGOPT(TraditionalCPP    , 1, 0, "traditional CPP emulation")
>> -LANGOPT(RTTI              , 1, 1, "run-time type information")
>> -LANGOPT(RTTIData          , 1, 1, "emit run-time type information data")
>> -LANGOPT(MSBitfields       , 1, 0, "Microsoft-compatible structure
>> layout")
>> -LANGOPT(Freestanding, 1, 0, "freestanding implementation")
>> -LANGOPT(NoBuiltin         , 1, 0, "disable builtin functions")
>> -LANGOPT(NoMathBuiltin     , 1, 0, "disable math builtin functions")
>> -LANGOPT(GNUAsm            , 1, 1, "GNU-style inline assembly")
>> -LANGOPT(CoroutinesTS      , 1, 0, "C++ coroutines TS")
>> -LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of
>> template template arguments")
>> -
>> -LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension
>> for all language standard modes")
>> -
>> -BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static
>> initializers")
>> -LANGOPT(POSIXThreads      , 1, 0, "POSIX thread support")
>> -LANGOPT(Blocks            , 1, 0, "blocks extension to C")
>> -BENIGN_LANGOPT(EmitAllDecls      , 1, 0, "emitting all declarations")
>> -LANGOPT(MathErrno         , 1, 1, "errno in math functions")
>> -BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't
>> like and may be ripped out at any time")
>> -LANGOPT(Modules           , 1, 0, "modules extension to C")
>> -COMPATIBLE_LANGOPT(ModulesTS  , 1, 0, "C++ Modules TS")
>> -BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None,
>> -                    "compiling a module interface")
>> -BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch")
>> -COMPATIBLE_LANGOPT(ModulesDeclUse    , 1, 0, "require declaration of
>> module uses")
>> -BENIGN_LANGOPT(ModulesSearchAll  , 1, 1, "searching even non-imported
>> modules to find unresolved references")
>> -COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of
>> module uses and all headers to be in modules")
>> -BENIGN_LANGOPT(ModulesErrorRecovery, 1, 1, "automatically importing
>> modules as needed when performing error recovery")
>> -BENIGN_LANGOPT(ImplicitModules, 1, 1, "building modules that are not
>> specified via -fmodule-file")
>> -COMPATIBLE_LANGOPT(ModulesLocalVisibility, 1, 0, "local submodule
>> visibility")
>> -COMPATIBLE_LANGOPT(Optimize          , 1, 0, "__OPTIMIZE__ predefined
>> macro")
>> -COMPATIBLE_LANGOPT(OptimizeSize      , 1, 0, "__OPTIMIZE_SIZE__
>> predefined macro")
>> -COMPATIBLE_LANGOPT(Static            , 1, 0, "__STATIC__ predefined macro
>> (as opposed to __DYNAMIC__)")
>> -VALUE_LANGOPT(PackStruct  , 32, 0,
>> -              "default struct packing maximum alignment")
>> -VALUE_LANGOPT(MaxTypeAlign  , 32, 0,
>> -              "default maximum alignment for types")
>> -VALUE_LANGOPT(AlignDouble            , 1, 0, "Controls if doubles should
>> be aligned to 8 bytes (x86 only)")
>> -COMPATIBLE_VALUE_LANGOPT(PICLevel    , 2, 0, "__PIC__ level")
>> -COMPATIBLE_VALUE_LANGOPT(PIE         , 1, 0, "is pie")
>> -COMPATIBLE_LANGOPT(GNUInline         , 1, 0, "GNU inline semantics")
>> -COMPATIBLE_LANGOPT(NoInlineDefine    , 1, 0, "__NO_INLINE__ predefined
>> macro")
>> -COMPATIBLE_LANGOPT(Deprecated        , 1, 0, "__DEPRECATED predefined
>> macro")
>> -COMPATIBLE_LANGOPT(FastMath          , 1, 0, "fast FP math optimizations,
>> and __FAST_MATH__ predefined macro")
>> -COMPATIBLE_LANGOPT(FiniteMathOnly    , 1, 0, "__FINITE_MATH_ONLY__
>> predefined macro")
>> -COMPATIBLE_LANGOPT(UnsafeFPMath      , 1, 0, "Unsafe Floating Point
>> Math")
>> -
>> -BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout
>> for __weak/__strong ivars")
>> -
>> -BENIGN_LANGOPT(AccessControl     , 1, 1, "C++ access control")
>> -LANGOPT(CharIsSigned      , 1, 1, "signed char")
>> -LANGOPT(WCharSize         , 4, 0, "width of wchar_t")
>> -LANGOPT(WCharIsSigned        , 1, 0, "signed or unsigned wchar_t")
>> -ENUM_LANGOPT(MSPointerToMemberRepresentationMethod,
>> PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer
>> representation method")
>> +//===--- LangOptions.def - Language option database -------------*- C++
>> -*-===//
>> +//
>> +//                     The LLVM Compiler Infrastructure
>> +//
>> +// This file is distributed under the University of Illinois Open Source
>> +// License. See LICENSE.TXT for details.
>> +//
>>
>> +//===----------------------------------------------------------------------===//
>> +//
>> +// This file defines the language options. Users of this file must
>> +// define the LANGOPT macro to make use of this information.
>> +//
>> +// Optionally, the user may also define:
>> +//
>> +// BENIGN_LANGOPT: for options that don't affect the construction of the
>> AST in
>> +//     any way (that is, the value can be different between an implicit
>> module
>> +//     and the user of that module).
>> +//
>> +// COMPATIBLE_LANGOPT: for options that affect the construction of the
>> AST in
>> +//     a way that doesn't prevent interoperability (that is, the value
>> can be
>> +//     different between an explicit module and the user of that module).
>> +//
>> +// ENUM_LANGOPT: for options that have enumeration, rather than unsigned,
>> type.
>> +//
>> +// VALUE_LANGOPT: for options that describe a value rather than a flag.
>> +//
>> +// BENIGN_ENUM_LANGOPT, COMPATIBLE_ENUM_LANGOPT,
>> +// BENIGN_VALUE_LANGOPT, COMPATIBLE_VALUE_LANGOPT: combinations of the
>> above.
>> +//
>> +// FIXME: Clients should be able to more easily select whether they want
>> +// different levels of compatibility versus how to handle different kinds
>> +// of option.
>> +//
>> +// The Description field should be a noun phrase, for instance "frobbing
>> all
>> +// widgets" or "C's implicit blintz feature".
>>
>> +//===----------------------------------------------------------------------===//
>> +
>> +#ifndef LANGOPT
>> +#  error Define the LANGOPT macro to handle language options
>> +#endif
>> +
>> +#ifndef COMPATIBLE_LANGOPT
>> +#  define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \
>> +     LANGOPT(Name, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef BENIGN_LANGOPT
>> +#  define BENIGN_LANGOPT(Name, Bits, Default, Description) \
>> +     COMPATIBLE_LANGOPT(Name, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef ENUM_LANGOPT
>> +#  define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
>> +     LANGOPT(Name, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef COMPATIBLE_ENUM_LANGOPT
>> +#  define COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
>> \
>> +     ENUM_LANGOPT(Name, Type, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef BENIGN_ENUM_LANGOPT
>> +#  define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
>> +     COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef VALUE_LANGOPT
>> +#  define VALUE_LANGOPT(Name, Bits, Default, Description) \
>> +     LANGOPT(Name, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef COMPATIBLE_VALUE_LANGOPT
>> +#  define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \
>> +     VALUE_LANGOPT(Name, Bits, Default, Description)
>> +#endif
>> +
>> +#ifndef BENIGN_VALUE_LANGOPT
>> +#  define BENIGN_VALUE_LANGOPT(Name, Bits, Default, Description) \
>> +     COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description)
>> +#endif
>> +
>> +// FIXME: A lot of the BENIGN_ options should be COMPATIBLE_ instead.
>> +LANGOPT(C99               , 1, 0, "C99")
>> +LANGOPT(C11               , 1, 0, "C11")
>> +LANGOPT(C17               , 1, 0, "C17")
>> +LANGOPT(MSVCCompat        , 1, 0, "Microsoft Visual C++ full
>> compatibility mode")
>> +LANGOPT(MicrosoftExt      , 1, 0, "Microsoft C++ extensions")
>> +LANGOPT(AsmBlocks         , 1, 0, "Microsoft inline asm blocks")
>> +LANGOPT(Borland           , 1, 0, "Borland extensions")
>> +LANGOPT(CPlusPlus         , 1, 0, "C++")
>> +LANGOPT(CPlusPlus11       , 1, 0, "C++11")
>> +LANGOPT(CPlusPlus14       , 1, 0, "C++14")
>> +LANGOPT(CPlusPlus17       , 1, 0, "C++17")
>> +LANGOPT(CPlusPlus2a       , 1, 0, "C++2a")
>> +LANGOPT(ObjC1             , 1, 0, "Objective-C 1")
>> +LANGOPT(ObjC2             , 1, 0, "Objective-C 2")
>> +BENIGN_LANGOPT(ObjCDefaultSynthProperties , 1, 0,
>> +               "Objective-C auto-synthesized properties")
>> +BENIGN_LANGOPT(EncodeExtendedBlockSig , 1, 0,
>> +               "Encoding extended block type signature")
>> +BENIGN_LANGOPT(ObjCInferRelatedResultType , 1, 1,
>> +               "Objective-C related result type inference")
>> +LANGOPT(AppExt , 1, 0, "Objective-C App Extension")
>> +LANGOPT(Trigraphs         , 1, 0,"trigraphs")
>> +LANGOPT(LineComment       , 1, 0, "'//' comments")
>> +LANGOPT(Bool              , 1, 0, "bool, true, and false keywords")
>> +LANGOPT(Half              , 1, 0, "half keyword")
>> +LANGOPT(WChar             , 1, CPlusPlus, "wchar_t keyword")
>> +LANGOPT(DeclSpecKeyword   , 1, 0, "__declspec keyword")
>> +BENIGN_LANGOPT(DollarIdents   , 1, 1, "'$' in identifiers")
>> +BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode")
>> +LANGOPT(GNUMode           , 1, 1, "GNU extensions")
>> +LANGOPT(GNUKeywords       , 1, 1, "GNU keywords")
>> +BENIGN_LANGOPT(ImplicitInt, 1, !C99 && !CPlusPlus, "C89 implicit 'int'")
>> +LANGOPT(Digraphs          , 1, 0, "digraphs")
>> +BENIGN_LANGOPT(HexFloats  , 1, C99, "C99 hexadecimal float constants")
>> +LANGOPT(CXXOperatorNames  , 1, 0, "C++ operator name keywords")
>> +LANGOPT(AppleKext         , 1, 0, "Apple kext support")
>> +BENIGN_LANGOPT(PascalStrings, 1, 0, "Pascal string support")
>> +LANGOPT(WritableStrings   , 1, 0, "writable string support")
>> +LANGOPT(ConstStrings      , 1, 0, "const-qualified string support")
>> +LANGOPT(LaxVectorConversions , 1, 1, "lax vector conversions")
>> +LANGOPT(AltiVec           , 1, 0, "AltiVec-style vector initializers")
>> +LANGOPT(ZVector           , 1, 0, "System z vector extensions")
>> +LANGOPT(Exceptions        , 1, 0, "exception handling")
>> +LANGOPT(ObjCExceptions    , 1, 0, "Objective-C exceptions")
>> +LANGOPT(CXXExceptions     , 1, 0, "C++ exceptions")
>> +LANGOPT(DWARFExceptions   , 1, 0, "dwarf exception handling")
>> +LANGOPT(SjLjExceptions    , 1, 0, "setjmp-longjump exception handling")
>> +LANGOPT(SEHExceptions     , 1, 0, "SEH .xdata exception handling")
>> +LANGOPT(ExternCNoUnwind   , 1, 0, "Assume extern C functions don't
>> unwind")
>> +LANGOPT(TraditionalCPP    , 1, 0, "traditional CPP emulation")
>> +LANGOPT(RTTI              , 1, 1, "run-time type information")
>> +LANGOPT(RTTIData          , 1, 1, "emit run-time type information data")
>> +LANGOPT(MSBitfields       , 1, 0, "Microsoft-compatible structure
>> layout")
>> +LANGOPT(Freestanding, 1, 0, "freestanding implementation")
>> +LANGOPT(NoBuiltin         , 1, 0, "disable builtin functions")
>> +LANGOPT(NoMathBuiltin     , 1, 0, "disable math builtin functions")
>> +LANGOPT(GNUAsm            , 1, 1, "GNU-style inline assembly")
>> +LANGOPT(CoroutinesTS      , 1, 0, "C++ coroutines TS")
>> +LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of
>> template template arguments")
>> +
>> +LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension
>> for all language standard modes")
>> +
>> +BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static
>> initializers")
>> +LANGOPT(POSIXThreads      , 1, 0, "POSIX thread support")
>> +LANGOPT(Blocks            , 1, 0, "blocks extension to C")
>> +BENIGN_LANGOPT(EmitAllDecls      , 1, 0, "emitting all declarations")
>> +LANGOPT(MathErrno         , 1, 1, "errno in math functions")
>> +BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't
>> like and may be ripped out at any time")
>> +LANGOPT(Modules           , 1, 0, "modules extension to C")
>> +COMPATIBLE_LANGOPT(ModulesTS  , 1, 0, "C++ Modules TS")
>> +BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None,
>> +                    "compiling a module interface")
>> +BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch")
>> +COMPATIBLE_LANGOPT(ModulesDeclUse    , 1, 0, "require declaration of
>> module uses")
>> +BENIGN_LANGOPT(ModulesSearchAll  , 1, 1, "searching even non-imported
>> modules to find unresolved references")
>> +COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of
>> module uses and all headers to be in modules")
>> +BENIGN_LANGOPT(ModulesErrorRecovery, 1, 1, "automatically importing
>> modules as needed when performing error recovery")
>> +BENIGN_LANGOPT(ImplicitModules, 1, 1, "building modules that are not
>> specified via -fmodule-file")
>> +COMPATIBLE_LANGOPT(ModulesLocalVisibility, 1, 0, "local submodule
>> visibility")
>> +COMPATIBLE_LANGOPT(Optimize          , 1, 0, "__OPTIMIZE__ predefined
>> macro")
>> +COMPATIBLE_LANGOPT(OptimizeSize      , 1, 0, "__OPTIMIZE_SIZE__
>> predefined macro")
>> +COMPATIBLE_LANGOPT(Static            , 1, 0, "__STATIC__ predefined macro
>> (as opposed to __DYNAMIC__)")
>> +VALUE_LANGOPT(PackStruct  , 32, 0,
>> +              "default struct packing maximum alignment")
>> +VALUE_LANGOPT(MaxTypeAlign  , 32, 0,
>> +              "default maximum alignment for types")
>> +VALUE_LANGOPT(AlignDouble            , 1, 0, "Controls if doubles should
>> be aligned to 8 bytes (x86 only)")
>> +COMPATIBLE_VALUE_LANGOPT(PICLevel    , 2, 0, "__PIC__ level")
>> +COMPATIBLE_VALUE_LANGOPT(PIE         , 1, 0, "is pie")
>> +COMPATIBLE_LANGOPT(GNUInline         , 1, 0, "GNU inline semantics")
>> +COMPATIBLE_LANGOPT(NoInlineDefine    , 1, 0, "__NO_INLINE__ predefined
>> macro")
>> +COMPATIBLE_LANGOPT(Deprecated        , 1, 0, "__DEPRECATED predefined
>> macro")
>> +COMPATIBLE_LANGOPT(FastMath          , 1, 0, "fast FP math optimizations,
>> and __FAST_MATH__ predefined macro")
>> +COMPATIBLE_LANGOPT(FiniteMathOnly    , 1, 0, "__FINITE_MATH_ONLY__
>> predefined macro")
>> +COMPATIBLE_LANGOPT(UnsafeFPMath      , 1, 0, "Unsafe Floating Point
>> Math")
>> +
>> +BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout
>> for __weak/__strong ivars")
>> +
>> +BENIGN_LANGOPT(AccessControl     , 1, 1, "C++ access control")
>> +LANGOPT(CharIsSigned      , 1, 1, "signed char")
>> +LANGOPT(WCharSize         , 4, 0, "width of wchar_t")
>> +LANGOPT(WCharIsSigned        , 1, 0, "signed or unsigned wchar_t")
>> +ENUM_LANGOPT(MSPointerToMemberRepresentationMethod,
>> PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer
>> representation method")
>>  ENUM_LANGOPT(DefaultCallingConv, DefaultCallingConvention, 3, DCC_None,
>> "default calling convention")
>>
>>  LANGOPT(ShortEnums        , 1, 0, "short enum types")
>>
>> Modified: cfe/trunk/include/clang/Frontend/LangStandard.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/LangStandard.h?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Frontend/LangStandard.h (original)
>> +++ cfe/trunk/include/clang/Frontend/LangStandard.h Thu Dec  7 13:46:26
>> 2017
>> @@ -1,110 +1,114 @@
>> -//===--- LangStandard.h -----------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#ifndef LLVM_CLANG_FRONTEND_LANGSTANDARD_H
>> -#define LLVM_CLANG_FRONTEND_LANGSTANDARD_H
>> -
>> -#include "clang/Basic/LLVM.h"
>> -#include "clang/Frontend/FrontendOptions.h"
>> -#include "llvm/ADT/StringRef.h"
>> -
>> -namespace clang {
>> -
>> -namespace frontend {
>> -
>> -enum LangFeatures {
>> -  LineComment = (1 << 0),
>> -  C99 = (1 << 1),
>> -  C11 = (1 << 2),
>> -  CPlusPlus = (1 << 3),
>> -  CPlusPlus11 = (1 << 4),
>> -  CPlusPlus14 = (1 << 5),
>> -  CPlusPlus17 = (1 << 6),
>> -  CPlusPlus2a = (1 << 7),
>> -  Digraphs = (1 << 8),
>> -  GNUMode = (1 << 9),
>> -  HexFloat = (1 << 10),
>> -  ImplicitInt = (1 << 11),
>> -  OpenCL = (1 << 12)
>> -};
>> -
>> -}
>> -
>> -/// LangStandard - Information about the properties of a particular
>> language
>> -/// standard.
>> -struct LangStandard {
>> -  enum Kind {
>> -#define LANGSTANDARD(id, name, lang, desc, features) \
>> -    lang_##id,
>> -#include "clang/Frontend/LangStandards.def"
>> -    lang_unspecified
>> -  };
>> -
>> -  const char *ShortName;
>> -  const char *Description;
>> -  unsigned Flags;
>> -  InputKind::Language Language;
>> -
>> -public:
>> -  /// getName - Get the name of this standard.
>> -  const char *getName() const { return ShortName; }
>> -
>> -  /// getDescription - Get the description of this standard.
>> -  const char *getDescription() const { return Description; }
>> -
>> -  /// Get the language that this standard describes.
>> -  InputKind::Language getLanguage() const { return Language; }
>> -
>> -  /// Language supports '//' comments.
>> -  bool hasLineComments() const { return Flags & frontend::LineComment; }
>> -
>> -  /// isC99 - Language is a superset of C99.
>> -  bool isC99() const { return Flags & frontend::C99; }
>> -
>> -  /// isC11 - Language is a superset of C11.
>> -  bool isC11() const { return Flags & frontend::C11; }
>> -
>> -  /// isCPlusPlus - Language is a C++ variant.
>> -  bool isCPlusPlus() const { return Flags & frontend::CPlusPlus; }
>> -
>> -  /// isCPlusPlus11 - Language is a C++11 variant (or later).
>> -  bool isCPlusPlus11() const { return Flags & frontend::CPlusPlus11; }
>> -
>> -  /// isCPlusPlus14 - Language is a C++14 variant (or later).
>> -  bool isCPlusPlus14() const { return Flags & frontend::CPlusPlus14; }
>> -
>> -  /// isCPlusPlus17 - Language is a C++17 variant (or later).
>> -  bool isCPlusPlus17() const { return Flags & frontend::CPlusPlus17; }
>> -
>> -  /// isCPlusPlus2a - Language is a post-C++17 variant (or later).
>> -  bool isCPlusPlus2a() const { return Flags & frontend::CPlusPlus2a; }
>> -
>> -
>> -  /// hasDigraphs - Language supports digraphs.
>> -  bool hasDigraphs() const { return Flags & frontend::Digraphs; }
>> -
>> -  /// isGNUMode - Language includes GNU extensions.
>> -  bool isGNUMode() const { return Flags & frontend::GNUMode; }
>> -
>> -  /// hasHexFloats - Language supports hexadecimal float constants.
>> -  bool hasHexFloats() const { return Flags & frontend::HexFloat; }
>> -
>> -  /// hasImplicitInt - Language allows variables to be typed as int
>> implicitly.
>> -  bool hasImplicitInt() const { return Flags & frontend::ImplicitInt; }
>> -
>> -  /// isOpenCL - Language is a OpenCL variant.
>> -  bool isOpenCL() const { return Flags & frontend::OpenCL; }
>> -
>> -  static const LangStandard &getLangStandardForKind(Kind K);
>> -  static const LangStandard *getLangStandardForName(StringRef Name);
>> -};
>> -
>> -}  // end namespace clang
>> -
>> -#endif
>> +//===--- LangStandard.h -----------------------------------------*- C++
>> -*-===//
>> +//
>> +//                     The LLVM Compiler Infrastructure
>> +//
>> +// This file is distributed under the University of Illinois Open Source
>> +// License. See LICENSE.TXT for details.
>> +//
>>
>> +//===----------------------------------------------------------------------===//
>> +
>> +#ifndef LLVM_CLANG_FRONTEND_LANGSTANDARD_H
>> +#define LLVM_CLANG_FRONTEND_LANGSTANDARD_H
>> +
>> +#include "clang/Basic/LLVM.h"
>> +#include "clang/Frontend/FrontendOptions.h"
>> +#include "llvm/ADT/StringRef.h"
>> +
>> +namespace clang {
>> +
>> +namespace frontend {
>> +
>> +enum LangFeatures {
>> +  LineComment = (1 << 0),
>> +  C99 = (1 << 1),
>> +  C11 = (1 << 2),
>> +  C17 = (1 << 3),
>> +  CPlusPlus = (1 << 4),
>> +  CPlusPlus11 = (1 << 5),
>> +  CPlusPlus14 = (1 << 6),
>> +  CPlusPlus17 = (1 << 7),
>> +  CPlusPlus2a = (1 << 8),
>> +  Digraphs = (1 << 9),
>> +  GNUMode = (1 << 10),
>> +  HexFloat = (1 << 11),
>> +  ImplicitInt = (1 << 12),
>> +  OpenCL = (1 << 13)
>> +};
>> +
>> +}
>> +
>> +/// LangStandard - Information about the properties of a particular
>> language
>> +/// standard.
>> +struct LangStandard {
>> +  enum Kind {
>> +#define LANGSTANDARD(id, name, lang, desc, features) \
>> +    lang_##id,
>> +#include "clang/Frontend/LangStandards.def"
>> +    lang_unspecified
>> +  };
>> +
>> +  const char *ShortName;
>> +  const char *Description;
>> +  unsigned Flags;
>> +  InputKind::Language Language;
>> +
>> +public:
>> +  /// getName - Get the name of this standard.
>> +  const char *getName() const { return ShortName; }
>> +
>> +  /// getDescription - Get the description of this standard.
>> +  const char *getDescription() const { return Description; }
>> +
>> +  /// Get the language that this standard describes.
>> +  InputKind::Language getLanguage() const { return Language; }
>> +
>> +  /// Language supports '//' comments.
>> +  bool hasLineComments() const { return Flags & frontend::LineComment; }
>> +
>> +  /// isC99 - Language is a superset of C99.
>> +  bool isC99() const { return Flags & frontend::C99; }
>> +
>> +  /// isC11 - Language is a superset of C11.
>> +  bool isC11() const { return Flags & frontend::C11; }
>> +
>> +  /// isC17 - Language is a superset of C17.
>> +  bool isC17() const { return Flags & frontend::C17; }
>> +
>> +  /// isCPlusPlus - Language is a C++ variant.
>> +  bool isCPlusPlus() const { return Flags & frontend::CPlusPlus; }
>> +
>> +  /// isCPlusPlus11 - Language is a C++11 variant (or later).
>> +  bool isCPlusPlus11() const { return Flags & frontend::CPlusPlus11; }
>> +
>> +  /// isCPlusPlus14 - Language is a C++14 variant (or later).
>> +  bool isCPlusPlus14() const { return Flags & frontend::CPlusPlus14; }
>> +
>> +  /// isCPlusPlus17 - Language is a C++17 variant (or later).
>> +  bool isCPlusPlus17() const { return Flags & frontend::CPlusPlus17; }
>> +
>> +  /// isCPlusPlus2a - Language is a post-C++17 variant (or later).
>> +  bool isCPlusPlus2a() const { return Flags & frontend::CPlusPlus2a; }
>> +
>> +
>> +  /// hasDigraphs - Language supports digraphs.
>> +  bool hasDigraphs() const { return Flags & frontend::Digraphs; }
>> +
>> +  /// isGNUMode - Language includes GNU extensions.
>> +  bool isGNUMode() const { return Flags & frontend::GNUMode; }
>> +
>> +  /// hasHexFloats - Language supports hexadecimal float constants.
>> +  bool hasHexFloats() const { return Flags & frontend::HexFloat; }
>> +
>> +  /// hasImplicitInt - Language allows variables to be typed as int
>> implicitly.
>> +  bool hasImplicitInt() const { return Flags & frontend::ImplicitInt; }
>> +
>> +  /// isOpenCL - Language is a OpenCL variant.
>> +  bool isOpenCL() const { return Flags & frontend::OpenCL; }
>> +
>> +  static const LangStandard &getLangStandardForKind(Kind K);
>> +  static const LangStandard *getLangStandardForName(StringRef Name);
>> +};
>> +
>> +}  // end namespace clang
>> +
>> +#endif
>>
>> Modified: cfe/trunk/include/clang/Frontend/LangStandards.def
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/LangStandards.def?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Frontend/LangStandards.def (original)
>> +++ cfe/trunk/include/clang/Frontend/LangStandards.def Thu Dec  7 13:46:26
>> 2017
>> @@ -1,161 +1,170 @@
>> -//===-- LangStandards.def - Language Standard Data --------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#ifndef LANGSTANDARD
>> -#error "LANGSTANDARD must be defined before including this file"
>> -#endif
>> -
>> -/// LANGSTANDARD(IDENT, NAME, LANG, DESC, FEATURES)
>> -///
>> -/// \param IDENT - The name of the standard as a C++ identifier.
>> -/// \param NAME - The name of the standard.
>> -/// \param LANG - The InputKind::Language for which this is a standard.
>> -/// \param DESC - A short description of the standard.
>> -/// \param FEATURES - The standard features as flags, these are enums
>> from the
>> -/// clang::frontend namespace, which is assumed to be be available.
>> -
>> -/// LANGSTANDARD_ALIAS(IDENT, ALIAS)
>> -/// \param IDENT - The name of the standard as a C++ identifier.
>> -/// \param ALIAS - The alias of the standard.
>> -
>> -/// LANGSTANDARD_ALIAS_DEPR(IDENT, ALIAS)
>> -/// Same as LANGSTANDARD_ALIAS, but for a deprecated alias.
>> -
>> -#ifndef LANGSTANDARD_ALIAS
>> -#define LANGSTANDARD_ALIAS(IDENT, ALIAS)
>> -#endif
>> -
>> -#ifndef LANGSTANDARD_ALIAS_DEPR
>> -#define LANGSTANDARD_ALIAS_DEPR(IDENT, ALIAS) LANGSTANDARD_ALIAS(IDENT,
>> ALIAS)
>> -#endif
>> -
>> -// C89-ish modes.
>> -LANGSTANDARD(c89, "c89",
>> -             C, "ISO C 1990",
>> -             ImplicitInt)
>> -LANGSTANDARD_ALIAS(c89, "c90")
>> -LANGSTANDARD_ALIAS(c89, "iso9899:1990")
>> -
>> -LANGSTANDARD(c94, "iso9899:199409",
>> -             C, "ISO C 1990 with amendment 1",
>> -             Digraphs | ImplicitInt)
>> -
>> -LANGSTANDARD(gnu89, "gnu89",
>> -             C, "ISO C 1990 with GNU extensions",
>> -             LineComment | Digraphs | GNUMode | ImplicitInt)
>> -LANGSTANDARD_ALIAS(gnu89, "gnu90")
>> -
>> -// C99-ish modes
>> -LANGSTANDARD(c99, "c99",
>> -             C, "ISO C 1999",
>> -             LineComment | C99 | Digraphs | HexFloat)
>> -LANGSTANDARD_ALIAS(c99, "iso9899:1999")
>> -LANGSTANDARD_ALIAS_DEPR(c99, "c9x")
>> -LANGSTANDARD_ALIAS_DEPR(c99, "iso9899:199x")
>> -
>> -LANGSTANDARD(gnu99, "gnu99",
>> -             C, "ISO C 1999 with GNU extensions",
>> -             LineComment | C99 | Digraphs | GNUMode | HexFloat)
>> -LANGSTANDARD_ALIAS_DEPR(gnu99, "gnu9x")
>> -
>> -// C11 modes
>> -LANGSTANDARD(c11, "c11",
>> -             C, "ISO C 2011",
>> -             LineComment | C99 | C11 | Digraphs | HexFloat)
>> -LANGSTANDARD_ALIAS(c11, "iso9899:2011")
>> -LANGSTANDARD_ALIAS_DEPR(c11, "c1x")
>> -LANGSTANDARD_ALIAS_DEPR(c11, "iso9899:201x")
>> -
>> -LANGSTANDARD(gnu11, "gnu11",
>> -             C, "ISO C 2011 with GNU extensions",
>> -             LineComment | C99 | C11 | Digraphs | GNUMode | HexFloat)
>> -LANGSTANDARD_ALIAS_DEPR(gnu11, "gnu1x")
>> -
>> -// C++ modes
>> -LANGSTANDARD(cxx98, "c++98",
>> -             CXX, "ISO C++ 1998 with amendments",
>> -             LineComment | CPlusPlus | Digraphs)
>> -LANGSTANDARD_ALIAS(cxx98, "c++03")
>> -
>> -LANGSTANDARD(gnucxx98, "gnu++98",
>> -             CXX, "ISO C++ 1998 with amendments and GNU extensions",
>> -             LineComment | CPlusPlus | Digraphs | GNUMode)
>> -LANGSTANDARD_ALIAS(gnucxx98, "gnu++03")
>> -
>> -LANGSTANDARD(cxx11, "c++11",
>> -             CXX, "ISO C++ 2011 with amendments",
>> -             LineComment | CPlusPlus | CPlusPlus11 | Digraphs)
>> -LANGSTANDARD_ALIAS_DEPR(cxx11, "c++0x")
>> -
>> -LANGSTANDARD(gnucxx11, "gnu++11", CXX,
>> -             "ISO C++ 2011 with amendments and GNU extensions",
>> -             LineComment | CPlusPlus | CPlusPlus11 | Digraphs | GNUMode)
>> -LANGSTANDARD_ALIAS_DEPR(gnucxx11, "gnu++0x")
>> -
>> -LANGSTANDARD(cxx14, "c++14",
>> -             CXX, "ISO C++ 2014 with amendments",
>> -             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> Digraphs)
>> -LANGSTANDARD_ALIAS_DEPR(cxx14, "c++1y")
>> -
>> -LANGSTANDARD(gnucxx14, "gnu++14",
>> -             CXX, "ISO C++ 2014 with amendments and GNU extensions",
>> -             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> Digraphs |
>> -             GNUMode)
>> -LANGSTANDARD_ALIAS_DEPR(gnucxx14, "gnu++1y")
>> -
>> -LANGSTANDARD(cxx17, "c++17",
>> -             CXX, "ISO C++ 2017 with amendments",
>> -             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> -             Digraphs | HexFloat)
>> -LANGSTANDARD_ALIAS_DEPR(cxx17, "c++1z")
>> -
>> -LANGSTANDARD(gnucxx17, "gnu++17",
>> -             CXX, "ISO C++ 2017 with amendments and GNU extensions",
>> -             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> -             Digraphs | HexFloat | GNUMode)
>> -LANGSTANDARD_ALIAS_DEPR(gnucxx17, "gnu++1z")
>> -
>> -LANGSTANDARD(cxx2a, "c++2a",
>> -             CXX, "Working draft for ISO C++ 2020",
>> -             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> -             CPlusPlus2a | Digraphs | HexFloat)
>> -
>> -LANGSTANDARD(gnucxx2a, "gnu++2a",
>> -             CXX, "Working draft for ISO C++ 2020 with GNU extensions",
>> -             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> -             CPlusPlus2a | Digraphs | HexFloat | GNUMode)
>> -
>> -// OpenCL
>> -LANGSTANDARD(opencl10, "cl1.0",
>> -             OpenCL, "OpenCL 1.0",
>> -             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> -LANGSTANDARD_ALIAS_DEPR(opencl10, "cl")
>> -
>> -LANGSTANDARD(opencl11, "cl1.1",
>> -             OpenCL, "OpenCL 1.1",
>> -             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> -LANGSTANDARD(opencl12, "cl1.2",
>> -             OpenCL, "OpenCL 1.2",
>> -             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> -LANGSTANDARD(opencl20, "cl2.0",
>> -             OpenCL, "OpenCL 2.0",
>> -             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> -
>> -LANGSTANDARD_ALIAS_DEPR(opencl10, "CL")
>> -LANGSTANDARD_ALIAS_DEPR(opencl11, "CL1.1")
>> -LANGSTANDARD_ALIAS_DEPR(opencl12, "CL1.2")
>> -LANGSTANDARD_ALIAS_DEPR(opencl20, "CL2.0")
>> -
>> -// CUDA
>> -LANGSTANDARD(cuda, "cuda", CUDA, "NVIDIA CUDA(tm)",
>> -             LineComment | CPlusPlus | Digraphs)
>> -
>> -#undef LANGSTANDARD
>> -#undef LANGSTANDARD_ALIAS
>> -#undef LANGSTANDARD_ALIAS_DEPR
>> +//===-- LangStandards.def - Language Standard Data --------------*- C++
>> -*-===//
>> +//
>> +//                     The LLVM Compiler Infrastructure
>> +//
>> +// This file is distributed under the University of Illinois Open Source
>> +// License. See LICENSE.TXT for details.
>> +//
>>
>> +//===----------------------------------------------------------------------===//
>> +
>> +#ifndef LANGSTANDARD
>> +#error "LANGSTANDARD must be defined before including this file"
>> +#endif
>> +
>> +/// LANGSTANDARD(IDENT, NAME, LANG, DESC, FEATURES)
>> +///
>> +/// \param IDENT - The name of the standard as a C++ identifier.
>> +/// \param NAME - The name of the standard.
>> +/// \param LANG - The InputKind::Language for which this is a standard.
>> +/// \param DESC - A short description of the standard.
>> +/// \param FEATURES - The standard features as flags, these are enums
>> from the
>> +/// clang::frontend namespace, which is assumed to be be available.
>> +
>> +/// LANGSTANDARD_ALIAS(IDENT, ALIAS)
>> +/// \param IDENT - The name of the standard as a C++ identifier.
>> +/// \param ALIAS - The alias of the standard.
>> +
>> +/// LANGSTANDARD_ALIAS_DEPR(IDENT, ALIAS)
>> +/// Same as LANGSTANDARD_ALIAS, but for a deprecated alias.
>> +
>> +#ifndef LANGSTANDARD_ALIAS
>> +#define LANGSTANDARD_ALIAS(IDENT, ALIAS)
>> +#endif
>> +
>> +#ifndef LANGSTANDARD_ALIAS_DEPR
>> +#define LANGSTANDARD_ALIAS_DEPR(IDENT, ALIAS) LANGSTANDARD_ALIAS(IDENT,
>> ALIAS)
>> +#endif
>> +
>> +// C89-ish modes.
>> +LANGSTANDARD(c89, "c89",
>> +             C, "ISO C 1990",
>> +             ImplicitInt)
>> +LANGSTANDARD_ALIAS(c89, "c90")
>> +LANGSTANDARD_ALIAS(c89, "iso9899:1990")
>> +
>> +LANGSTANDARD(c94, "iso9899:199409",
>> +             C, "ISO C 1990 with amendment 1",
>> +             Digraphs | ImplicitInt)
>> +
>> +LANGSTANDARD(gnu89, "gnu89",
>> +             C, "ISO C 1990 with GNU extensions",
>> +             LineComment | Digraphs | GNUMode | ImplicitInt)
>> +LANGSTANDARD_ALIAS(gnu89, "gnu90")
>> +
>> +// C99-ish modes
>> +LANGSTANDARD(c99, "c99",
>> +             C, "ISO C 1999",
>> +             LineComment | C99 | Digraphs | HexFloat)
>> +LANGSTANDARD_ALIAS(c99, "iso9899:1999")
>> +LANGSTANDARD_ALIAS_DEPR(c99, "c9x")
>> +LANGSTANDARD_ALIAS_DEPR(c99, "iso9899:199x")
>> +
>> +LANGSTANDARD(gnu99, "gnu99",
>> +             C, "ISO C 1999 with GNU extensions",
>> +             LineComment | C99 | Digraphs | GNUMode | HexFloat)
>> +LANGSTANDARD_ALIAS_DEPR(gnu99, "gnu9x")
>> +
>> +// C11 modes
>> +LANGSTANDARD(c11, "c11",
>> +             C, "ISO C 2011",
>> +             LineComment | C99 | C11 | Digraphs | HexFloat)
>> +LANGSTANDARD_ALIAS(c11, "iso9899:2011")
>> +LANGSTANDARD_ALIAS_DEPR(c11, "c1x")
>> +LANGSTANDARD_ALIAS_DEPR(c11, "iso9899:201x")
>> +
>> +LANGSTANDARD(gnu11, "gnu11",
>> +             C, "ISO C 2011 with GNU extensions",
>> +             LineComment | C99 | C11 | Digraphs | GNUMode | HexFloat)
>> +LANGSTANDARD_ALIAS_DEPR(gnu11, "gnu1x")
>> +
>> +// C17 modes
>> +LANGSTANDARD(c17, "c17",
>> +             C, "ISO C 2017",
>> +             LineComment | C99 | C11 | C17 | Digraphs | HexFloat)
>> +LANGSTANDARD_ALIAS(c17, "iso9899:2017")
>> +LANGSTANDARD(gnu17, "gnu17",
>> +             C, "ISO C 2017 with GNU extensions",
>> +             LineComment | C99 | C11 | C17 | Digraphs | GNUMode |
>> HexFloat)
>> +
>> +// C++ modes
>> +LANGSTANDARD(cxx98, "c++98",
>> +             CXX, "ISO C++ 1998 with amendments",
>> +             LineComment | CPlusPlus | Digraphs)
>> +LANGSTANDARD_ALIAS(cxx98, "c++03")
>> +
>> +LANGSTANDARD(gnucxx98, "gnu++98",
>> +             CXX, "ISO C++ 1998 with amendments and GNU extensions",
>> +             LineComment | CPlusPlus | Digraphs | GNUMode)
>> +LANGSTANDARD_ALIAS(gnucxx98, "gnu++03")
>> +
>> +LANGSTANDARD(cxx11, "c++11",
>> +             CXX, "ISO C++ 2011 with amendments",
>> +             LineComment | CPlusPlus | CPlusPlus11 | Digraphs)
>> +LANGSTANDARD_ALIAS_DEPR(cxx11, "c++0x")
>> +
>> +LANGSTANDARD(gnucxx11, "gnu++11", CXX,
>> +             "ISO C++ 2011 with amendments and GNU extensions",
>> +             LineComment | CPlusPlus | CPlusPlus11 | Digraphs | GNUMode)
>> +LANGSTANDARD_ALIAS_DEPR(gnucxx11, "gnu++0x")
>> +
>> +LANGSTANDARD(cxx14, "c++14",
>> +             CXX, "ISO C++ 2014 with amendments",
>> +             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> Digraphs)
>> +LANGSTANDARD_ALIAS_DEPR(cxx14, "c++1y")
>> +
>> +LANGSTANDARD(gnucxx14, "gnu++14",
>> +             CXX, "ISO C++ 2014 with amendments and GNU extensions",
>> +             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> Digraphs |
>> +             GNUMode)
>> +LANGSTANDARD_ALIAS_DEPR(gnucxx14, "gnu++1y")
>> +
>> +LANGSTANDARD(cxx17, "c++17",
>> +             CXX, "ISO C++ 2017 with amendments",
>> +             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> +             Digraphs | HexFloat)
>> +LANGSTANDARD_ALIAS_DEPR(cxx17, "c++1z")
>> +
>> +LANGSTANDARD(gnucxx17, "gnu++17",
>> +             CXX, "ISO C++ 2017 with amendments and GNU extensions",
>> +             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> +             Digraphs | HexFloat | GNUMode)
>> +LANGSTANDARD_ALIAS_DEPR(gnucxx17, "gnu++1z")
>> +
>> +LANGSTANDARD(cxx2a, "c++2a",
>> +             CXX, "Working draft for ISO C++ 2020",
>> +             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> +             CPlusPlus2a | Digraphs | HexFloat)
>> +
>> +LANGSTANDARD(gnucxx2a, "gnu++2a",
>> +             CXX, "Working draft for ISO C++ 2020 with GNU extensions",
>> +             LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 |
>> CPlusPlus17 |
>> +             CPlusPlus2a | Digraphs | HexFloat | GNUMode)
>> +
>> +// OpenCL
>> +LANGSTANDARD(opencl10, "cl1.0",
>> +             OpenCL, "OpenCL 1.0",
>> +             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> +LANGSTANDARD_ALIAS_DEPR(opencl10, "cl")
>> +
>> +LANGSTANDARD(opencl11, "cl1.1",
>> +             OpenCL, "OpenCL 1.1",
>> +             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> +LANGSTANDARD(opencl12, "cl1.2",
>> +             OpenCL, "OpenCL 1.2",
>> +             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> +LANGSTANDARD(opencl20, "cl2.0",
>> +             OpenCL, "OpenCL 2.0",
>> +             LineComment | C99 | Digraphs | HexFloat | OpenCL)
>> +
>> +LANGSTANDARD_ALIAS_DEPR(opencl10, "CL")
>> +LANGSTANDARD_ALIAS_DEPR(opencl11, "CL1.1")
>> +LANGSTANDARD_ALIAS_DEPR(opencl12, "CL1.2")
>> +LANGSTANDARD_ALIAS_DEPR(opencl20, "CL2.0")
>> +
>> +// CUDA
>> +LANGSTANDARD(cuda, "cuda", CUDA, "NVIDIA CUDA(tm)",
>> +             LineComment | CPlusPlus | Digraphs)
>> +
>> +#undef LANGSTANDARD
>> +#undef LANGSTANDARD_ALIAS
>> +#undef LANGSTANDARD_ALIAS_DEPR
>>
>> Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
>> +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Thu Dec  7 13:46:26 2017
>> @@ -1645,206 +1645,207 @@ static void ParseHeaderSearchArgs(Header
>>        Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false,
>> true);
>>    }
>>
>> -  for (const Arg *A : Args.filtered(OPT_idirafter))
>> -    Opts.AddPath(A->getValue(), frontend::After, false, true);
>> -  for (const Arg *A : Args.filtered(OPT_iquote))
>> -    Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
>> -  for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
>> -    Opts.AddPath(A->getValue(), frontend::System, false,
>> -                 !A->getOption().matches(OPT_iwithsysroot));
>> -  for (const Arg *A : Args.filtered(OPT_iframework))
>> -    Opts.AddPath(A->getValue(), frontend::System, true, true);
>> -  for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot))
>> -    Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
>> -                 /*IgnoreSysRoot=*/false);
>> -
>> -  // Add the paths for the various language specific isystem flags.
>> -  for (const Arg *A : Args.filtered(OPT_c_isystem))
>> -    Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
>> -  for (const Arg *A : Args.filtered(OPT_cxx_isystem))
>> -    Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
>> -  for (const Arg *A : Args.filtered(OPT_objc_isystem))
>> -    Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
>> -  for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
>> -    Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
>> -
>> -  // Add the internal paths from a driver that detects standard include
>> paths.
>> -  for (const Arg *A :
>> -       Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem))
>> {
>> -    frontend::IncludeDirGroup Group = frontend::System;
>> -    if (A->getOption().matches(OPT_internal_externc_isystem))
>> -      Group = frontend::ExternCSystem;
>> -    Opts.AddPath(A->getValue(), Group, false, true);
>> -  }
>> -
>> -  // Add the path prefixes which are implicitly treated as being system
>> headers.
>> -  for (const Arg *A :
>> -       Args.filtered(OPT_system_header_prefix,
>> OPT_no_system_header_prefix))
>> -    Opts.AddSystemHeaderPrefix(
>> -        A->getValue(), A->getOption().matches(OPT_system_header_prefix));
>> -
>> -  for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
>> -    Opts.AddVFSOverlayFile(A->getValue());
>> -}
>> -
>> -void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
>> -                                         const llvm::Triple &T,
>> -                                         PreprocessorOptions &PPOpts,
>> -                                         LangStandard::Kind LangStd) {
>> -  // Set some properties which depend solely on the input kind; it would
>> be nice
>> -  // to move these to the language standard, and have the driver resolve
>> the
>> -  // input kind + language standard.
>> -  //
>> -  // FIXME: Perhaps a better model would be for a single source file to
>> have
>> -  // multiple language standards (C / C++ std, ObjC std, OpenCL std,
>> OpenMP std)
>> -  // simultaneously active?
>> -  if (IK.getLanguage() == InputKind::Asm) {
>> -    Opts.AsmPreprocessor = 1;
>> -  } else if (IK.isObjectiveC()) {
>> -    Opts.ObjC1 = Opts.ObjC2 = 1;
>> -  }
>> -
>> -  if (LangStd == LangStandard::lang_unspecified) {
>> -    // Based on the base language, pick one.
>> -    switch (IK.getLanguage()) {
>> -    case InputKind::Unknown:
>> -    case InputKind::LLVM_IR:
>> -      llvm_unreachable("Invalid input kind!");
>> -    case InputKind::OpenCL:
>> -      LangStd = LangStandard::lang_opencl10;
>> -      break;
>> -    case InputKind::CUDA:
>> -      LangStd = LangStandard::lang_cuda;
>> -      break;
>> -    case InputKind::Asm:
>> -    case InputKind::C:
>> -      // The PS4 uses C99 as the default C standard.
>> -      if (T.isPS4())
>> -        LangStd = LangStandard::lang_gnu99;
>> -      else
>> -        LangStd = LangStandard::lang_gnu11;
>> -      break;
>> -    case InputKind::ObjC:
>> -      LangStd = LangStandard::lang_gnu11;
>> -      break;
>> -    case InputKind::CXX:
>> -    case InputKind::ObjCXX:
>> -      // The PS4 uses C++11 as the default C++ standard.
>> -      if (T.isPS4())
>> -        LangStd = LangStandard::lang_gnucxx11;
>> -      else
>> -        LangStd = LangStandard::lang_gnucxx98;
>> -      break;
>> -    case InputKind::RenderScript:
>> -      LangStd = LangStandard::lang_c99;
>> -      break;
>> -    }
>> -  }
>> -
>> -  const LangStandard &Std =
>> LangStandard::getLangStandardForKind(LangStd);
>> -  Opts.LineComment = Std.hasLineComments();
>> -  Opts.C99 = Std.isC99();
>> -  Opts.C11 = Std.isC11();
>> -  Opts.CPlusPlus = Std.isCPlusPlus();
>> -  Opts.CPlusPlus11 = Std.isCPlusPlus11();
>> -  Opts.CPlusPlus14 = Std.isCPlusPlus14();
>> -  Opts.CPlusPlus17 = Std.isCPlusPlus17();
>> -  Opts.CPlusPlus2a = Std.isCPlusPlus2a();
>> -  Opts.Digraphs = Std.hasDigraphs();
>> -  Opts.GNUMode = Std.isGNUMode();
>> -  Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
>> -  Opts.HexFloats = Std.hasHexFloats();
>> -  Opts.ImplicitInt = Std.hasImplicitInt();
>> -
>> -  // Set OpenCL Version.
>> -  Opts.OpenCL = Std.isOpenCL();
>> -  if (LangStd == LangStandard::lang_opencl10)
>> -    Opts.OpenCLVersion = 100;
>> -  else if (LangStd == LangStandard::lang_opencl11)
>> -    Opts.OpenCLVersion = 110;
>> -  else if (LangStd == LangStandard::lang_opencl12)
>> -    Opts.OpenCLVersion = 120;
>> -  else if (LangStd == LangStandard::lang_opencl20)
>> -    Opts.OpenCLVersion = 200;
>> -
>> -  // OpenCL has some additional defaults.
>> -  if (Opts.OpenCL) {
>> -    Opts.AltiVec = 0;
>> -    Opts.ZVector = 0;
>> -    Opts.LaxVectorConversions = 0;
>> -    Opts.setDefaultFPContractMode(LangOptions::FPC_On);
>> -    Opts.NativeHalfType = 1;
>> -    Opts.NativeHalfArgsAndReturns = 1;
>> -    // Include default header file for OpenCL.
>> -    if (Opts.IncludeDefaultHeader) {
>> -      PPOpts.Includes.push_back("opencl-c.h");
>> -    }
>> -  }
>> -
>> -  Opts.CUDA = IK.getLanguage() == InputKind::CUDA;
>> -  if (Opts.CUDA)
>> -    // Set default FP_CONTRACT to FAST.
>> -    Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
>> -
>> -  Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript;
>> -  if (Opts.RenderScript) {
>> -    Opts.NativeHalfType = 1;
>> -    Opts.NativeHalfArgsAndReturns = 1;
>> -  }
>> -
>> -  // OpenCL and C++ both have bool, true, false keywords.
>> -  Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
>> -
>> -  // OpenCL has half keyword
>> -  Opts.Half = Opts.OpenCL;
>> -
>> -  // C++ has wchar_t keyword.
>> -  Opts.WChar = Opts.CPlusPlus;
>> -
>> -  Opts.GNUKeywords = Opts.GNUMode;
>> -  Opts.CXXOperatorNames = Opts.CPlusPlus;
>> -
>> -  Opts.AlignedAllocation = Opts.CPlusPlus17;
>> -
>> -  Opts.DollarIdents = !Opts.AsmPreprocessor;
>> -}
>> -
>> -/// Attempt to parse a visibility value out of the given argument.
>> -static Visibility parseVisibility(Arg *arg, ArgList &args,
>> -                                  DiagnosticsEngine &diags) {
>> -  StringRef value = arg->getValue();
>> -  if (value == "default") {
>> -    return DefaultVisibility;
>> -  } else if (value == "hidden" || value == "internal") {
>> -    return HiddenVisibility;
>> -  } else if (value == "protected") {
>> -    // FIXME: diagnose if target does not support protected visibility
>> -    return ProtectedVisibility;
>> -  }
>> -
>> -  diags.Report(diag::err_drv_invalid_value)
>> -    << arg->getAsString(args) << value;
>> -  return DefaultVisibility;
>> -}
>> -
>> -/// Check if input file kind and language standard are compatible.
>> -static bool IsInputCompatibleWithStandard(InputKind IK,
>> -                                          const LangStandard &S) {
>> -  switch (IK.getLanguage()) {
>> -  case InputKind::Unknown:
>> -  case InputKind::LLVM_IR:
>> -    llvm_unreachable("should not parse language flags for this input");
>> -
>> -  case InputKind::C:
>> -  case InputKind::ObjC:
>> -  case InputKind::RenderScript:
>> -    return S.getLanguage() == InputKind::C;
>> -
>> -  case InputKind::OpenCL:
>> -    return S.getLanguage() == InputKind::OpenCL;
>> -
>> -  case InputKind::CXX:
>> -  case InputKind::ObjCXX:
>> +  for (const Arg *A : Args.filtered(OPT_idirafter))
>> +    Opts.AddPath(A->getValue(), frontend::After, false, true);
>> +  for (const Arg *A : Args.filtered(OPT_iquote))
>> +    Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
>> +  for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
>> +    Opts.AddPath(A->getValue(), frontend::System, false,
>> +                 !A->getOption().matches(OPT_iwithsysroot));
>> +  for (const Arg *A : Args.filtered(OPT_iframework))
>> +    Opts.AddPath(A->getValue(), frontend::System, true, true);
>> +  for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot))
>> +    Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
>> +                 /*IgnoreSysRoot=*/false);
>> +
>> +  // Add the paths for the various language specific isystem flags.
>> +  for (const Arg *A : Args.filtered(OPT_c_isystem))
>> +    Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
>> +  for (const Arg *A : Args.filtered(OPT_cxx_isystem))
>> +    Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
>> +  for (const Arg *A : Args.filtered(OPT_objc_isystem))
>> +    Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
>> +  for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
>> +    Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
>> +
>> +  // Add the internal paths from a driver that detects standard include
>> paths.
>> +  for (const Arg *A :
>> +       Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem))
>> {
>> +    frontend::IncludeDirGroup Group = frontend::System;
>> +    if (A->getOption().matches(OPT_internal_externc_isystem))
>> +      Group = frontend::ExternCSystem;
>> +    Opts.AddPath(A->getValue(), Group, false, true);
>> +  }
>> +
>> +  // Add the path prefixes which are implicitly treated as being system
>> headers.
>> +  for (const Arg *A :
>> +       Args.filtered(OPT_system_header_prefix,
>> OPT_no_system_header_prefix))
>> +    Opts.AddSystemHeaderPrefix(
>> +        A->getValue(), A->getOption().matches(OPT_system_header_prefix));
>> +
>> +  for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
>> +    Opts.AddVFSOverlayFile(A->getValue());
>> +}
>> +
>> +void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
>> +                                         const llvm::Triple &T,
>> +                                         PreprocessorOptions &PPOpts,
>> +                                         LangStandard::Kind LangStd) {
>> +  // Set some properties which depend solely on the input kind; it would
>> be nice
>> +  // to move these to the language standard, and have the driver resolve
>> the
>> +  // input kind + language standard.
>> +  //
>> +  // FIXME: Perhaps a better model would be for a single source file to
>> have
>> +  // multiple language standards (C / C++ std, ObjC std, OpenCL std,
>> OpenMP std)
>> +  // simultaneously active?
>> +  if (IK.getLanguage() == InputKind::Asm) {
>> +    Opts.AsmPreprocessor = 1;
>> +  } else if (IK.isObjectiveC()) {
>> +    Opts.ObjC1 = Opts.ObjC2 = 1;
>> +  }
>> +
>> +  if (LangStd == LangStandard::lang_unspecified) {
>> +    // Based on the base language, pick one.
>> +    switch (IK.getLanguage()) {
>> +    case InputKind::Unknown:
>> +    case InputKind::LLVM_IR:
>> +      llvm_unreachable("Invalid input kind!");
>> +    case InputKind::OpenCL:
>> +      LangStd = LangStandard::lang_opencl10;
>> +      break;
>> +    case InputKind::CUDA:
>> +      LangStd = LangStandard::lang_cuda;
>> +      break;
>> +    case InputKind::Asm:
>> +    case InputKind::C:
>> +      // The PS4 uses C99 as the default C standard.
>> +      if (T.isPS4())
>> +        LangStd = LangStandard::lang_gnu99;
>> +      else
>> +        LangStd = LangStandard::lang_gnu11;
>> +      break;
>> +    case InputKind::ObjC:
>> +      LangStd = LangStandard::lang_gnu11;
>> +      break;
>> +    case InputKind::CXX:
>> +    case InputKind::ObjCXX:
>> +      // The PS4 uses C++11 as the default C++ standard.
>> +      if (T.isPS4())
>> +        LangStd = LangStandard::lang_gnucxx11;
>> +      else
>> +        LangStd = LangStandard::lang_gnucxx98;
>> +      break;
>> +    case InputKind::RenderScript:
>> +      LangStd = LangStandard::lang_c99;
>> +      break;
>> +    }
>> +  }
>> +
>> +  const LangStandard &Std =
>> LangStandard::getLangStandardForKind(LangStd);
>> +  Opts.LineComment = Std.hasLineComments();
>> +  Opts.C99 = Std.isC99();
>> +  Opts.C11 = Std.isC11();
>> +  Opts.C17 = Std.isC17();
>> +  Opts.CPlusPlus = Std.isCPlusPlus();
>> +  Opts.CPlusPlus11 = Std.isCPlusPlus11();
>> +  Opts.CPlusPlus14 = Std.isCPlusPlus14();
>> +  Opts.CPlusPlus17 = Std.isCPlusPlus17();
>> +  Opts.CPlusPlus2a = Std.isCPlusPlus2a();
>> +  Opts.Digraphs = Std.hasDigraphs();
>> +  Opts.GNUMode = Std.isGNUMode();
>> +  Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
>> +  Opts.HexFloats = Std.hasHexFloats();
>> +  Opts.ImplicitInt = Std.hasImplicitInt();
>> +
>> +  // Set OpenCL Version.
>> +  Opts.OpenCL = Std.isOpenCL();
>> +  if (LangStd == LangStandard::lang_opencl10)
>> +    Opts.OpenCLVersion = 100;
>> +  else if (LangStd == LangStandard::lang_opencl11)
>> +    Opts.OpenCLVersion = 110;
>> +  else if (LangStd == LangStandard::lang_opencl12)
>> +    Opts.OpenCLVersion = 120;
>> +  else if (LangStd == LangStandard::lang_opencl20)
>> +    Opts.OpenCLVersion = 200;
>> +
>> +  // OpenCL has some additional defaults.
>> +  if (Opts.OpenCL) {
>> +    Opts.AltiVec = 0;
>> +    Opts.ZVector = 0;
>> +    Opts.LaxVectorConversions = 0;
>> +    Opts.setDefaultFPContractMode(LangOptions::FPC_On);
>> +    Opts.NativeHalfType = 1;
>> +    Opts.NativeHalfArgsAndReturns = 1;
>> +    // Include default header file for OpenCL.
>> +    if (Opts.IncludeDefaultHeader) {
>> +      PPOpts.Includes.push_back("opencl-c.h");
>> +    }
>> +  }
>> +
>> +  Opts.CUDA = IK.getLanguage() == InputKind::CUDA;
>> +  if (Opts.CUDA)
>> +    // Set default FP_CONTRACT to FAST.
>> +    Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
>> +
>> +  Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript;
>> +  if (Opts.RenderScript) {
>> +    Opts.NativeHalfType = 1;
>> +    Opts.NativeHalfArgsAndReturns = 1;
>> +  }
>> +
>> +  // OpenCL and C++ both have bool, true, false keywords.
>> +  Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
>> +
>> +  // OpenCL has half keyword
>> +  Opts.Half = Opts.OpenCL;
>> +
>> +  // C++ has wchar_t keyword.
>> +  Opts.WChar = Opts.CPlusPlus;
>> +
>> +  Opts.GNUKeywords = Opts.GNUMode;
>> +  Opts.CXXOperatorNames = Opts.CPlusPlus;
>> +
>> +  Opts.AlignedAllocation = Opts.CPlusPlus17;
>> +
>> +  Opts.DollarIdents = !Opts.AsmPreprocessor;
>> +}
>> +
>> +/// Attempt to parse a visibility value out of the given argument.
>> +static Visibility parseVisibility(Arg *arg, ArgList &args,
>> +                                  DiagnosticsEngine &diags) {
>> +  StringRef value = arg->getValue();
>> +  if (value == "default") {
>> +    return DefaultVisibility;
>> +  } else if (value == "hidden" || value == "internal") {
>> +    return HiddenVisibility;
>> +  } else if (value == "protected") {
>> +    // FIXME: diagnose if target does not support protected visibility
>> +    return ProtectedVisibility;
>> +  }
>> +
>> +  diags.Report(diag::err_drv_invalid_value)
>> +    << arg->getAsString(args) << value;
>> +  return DefaultVisibility;
>> +}
>> +
>> +/// Check if input file kind and language standard are compatible.
>> +static bool IsInputCompatibleWithStandard(InputKind IK,
>> +                                          const LangStandard &S) {
>> +  switch (IK.getLanguage()) {
>> +  case InputKind::Unknown:
>> +  case InputKind::LLVM_IR:
>> +    llvm_unreachable("should not parse language flags for this input");
>> +
>> +  case InputKind::C:
>> +  case InputKind::ObjC:
>> +  case InputKind::RenderScript:
>> +    return S.getLanguage() == InputKind::C;
>> +
>> +  case InputKind::OpenCL:
>> +    return S.getLanguage() == InputKind::OpenCL;
>> +
>> +  case InputKind::CXX:
>> +  case InputKind::ObjCXX:
>>      return S.getLanguage() == InputKind::CXX;
>>
>>    case InputKind::CUDA:
>>
>> Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
>> +++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Thu Dec  7 13:46:26 2017
>> @@ -270,207 +270,209 @@ static void DefineLeastWidthIntType(unsi
>>    DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
>>    DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
>>  }
>> -
>> -static void DefineFastIntType(unsigned TypeWidth, bool IsSigned,
>> -                              const TargetInfo &TI, MacroBuilder
>> &Builder) {
>> -  // stdint.h currently defines the fast int types as equivalent to the
>> least
>> -  // types.
>> -  TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth,
>> IsSigned);
>> -  if (Ty == TargetInfo::NoInt)
>> -    return;
>> -
>> -  const char *Prefix = IsSigned ? "__INT_FAST" : "__UINT_FAST";
>> -  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
>> -  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
>> -
>> -  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
>> -}
>> -
>> -
>> -/// Get the value the ATOMIC_*_LOCK_FREE macro should have for a type
>> with
>> -/// the specified properties.
>> -static const char *getLockFreeValue(unsigned TypeWidth, unsigned
>> TypeAlign,
>> -                                    unsigned InlineWidth) {
>> -  // Fully-aligned, power-of-2 sizes no larger than the inline
>> -  // width will be inlined as lock-free operations.
>> -  if (TypeWidth == TypeAlign && (TypeWidth & (TypeWidth - 1)) == 0 &&
>> -      TypeWidth <= InlineWidth)
>> -    return "2"; // "always lock free"
>> -  // We cannot be certain what operations the lib calls might be
>> -  // able to implement as lock-free on future processors.
>> -  return "1"; // "sometimes lock free"
>> -}
>> -
>> -/// \brief Add definitions required for a smooth interaction between
>> -/// Objective-C++ automated reference counting and libstdc++ (4.2).
>> -static void AddObjCXXARCLibstdcxxDefines(const LangOptions &LangOpts,
>> -                                         MacroBuilder &Builder) {
>> -  Builder.defineMacro("_GLIBCXX_PREDEFINED_OBJC_ARC_IS_SCALAR");
>> -
>> -  std::string Result;
>> -  {
>> -    // Provide specializations for the __is_scalar type trait so that
>> -    // lifetime-qualified objects are not considered "scalar" types,
>> which
>> -    // libstdc++ uses as an indicator of the presence of trivial copy,
>> assign,
>> -    // default-construct, and destruct semantics (none of which hold for
>> -    // lifetime-qualified objects in ARC).
>> -    llvm::raw_string_ostream Out(Result);
>> -
>> -    Out << "namespace std {\n"
>> -        << "\n"
>> -        << "struct __true_type;\n"
>> -        << "struct __false_type;\n"
>> -        << "\n";
>> -
>> -    Out << "template<typename _Tp> struct __is_scalar;\n"
>> -        << "\n";
>> -
>> -    if (LangOpts.ObjCAutoRefCount) {
>> -      Out << "template<typename _Tp>\n"
>> -          << "struct __is_scalar<__attribute__((objc_ownership(strong)))
>> _Tp> {\n"
>> -          << "  enum { __value = 0 };\n"
>> -          << "  typedef __false_type __type;\n"
>> -          << "};\n"
>> -          << "\n";
>> -    }
>> -
>> -    if (LangOpts.ObjCWeak) {
>> -      Out << "template<typename _Tp>\n"
>> -          << "struct __is_scalar<__attribute__((objc_ownership(weak)))
>> _Tp> {\n"
>> -          << "  enum { __value = 0 };\n"
>> -          << "  typedef __false_type __type;\n"
>> -          << "};\n"
>> -          << "\n";
>> -    }
>> -
>> -    if (LangOpts.ObjCAutoRefCount) {
>> -      Out << "template<typename _Tp>\n"
>> -          << "struct
>> __is_scalar<__attribute__((objc_ownership(autoreleasing)))"
>> -          << " _Tp> {\n"
>> -          << "  enum { __value = 0 };\n"
>> -          << "  typedef __false_type __type;\n"
>> -          << "};\n"
>> -          << "\n";
>> -    }
>> -
>> -    Out << "}\n";
>> -  }
>> -  Builder.append(Result);
>> -}
>> -
>> -static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
>> -                                               const LangOptions
>> &LangOpts,
>> -                                               const FrontendOptions
>> &FEOpts,
>> -                                               MacroBuilder &Builder) {
>> -  if (!LangOpts.MSVCCompat && !LangOpts.TraditionalCPP)
>> -    Builder.defineMacro("__STDC__");
>> -  if (LangOpts.Freestanding)
>> -    Builder.defineMacro("__STDC_HOSTED__", "0");
>> -  else
>> -    Builder.defineMacro("__STDC_HOSTED__");
>> -
>> -  if (!LangOpts.CPlusPlus) {
>> -    if (LangOpts.C11)
>> -      Builder.defineMacro("__STDC_VERSION__", "201112L");
>> -    else if (LangOpts.C99)
>> -      Builder.defineMacro("__STDC_VERSION__", "199901L");
>> -    else if (!LangOpts.GNUMode && LangOpts.Digraphs)
>> -      Builder.defineMacro("__STDC_VERSION__", "199409L");
>> -  } else {
>> -    // FIXME: Use correct value for C++20.
>> -    if (LangOpts.CPlusPlus2a)
>> -      Builder.defineMacro("__cplusplus", "201707L");
>> -    // C++17 [cpp.predefined]p1:
>> -    //   The name __cplusplus is defined to the value 201703L when
>> compiling a
>> -    //   C++ translation unit.
>> -    else if (LangOpts.CPlusPlus17)
>> -      Builder.defineMacro("__cplusplus", "201703L");
>> -    // C++1y [cpp.predefined]p1:
>> -    //   The name __cplusplus is defined to the value 201402L when
>> compiling a
>> -    //   C++ translation unit.
>> -    else if (LangOpts.CPlusPlus14)
>> -      Builder.defineMacro("__cplusplus", "201402L");
>> -    // C++11 [cpp.predefined]p1:
>> -    //   The name __cplusplus is defined to the value 201103L when
>> compiling a
>> -    //   C++ translation unit.
>> -    else if (LangOpts.CPlusPlus11)
>> -      Builder.defineMacro("__cplusplus", "201103L");
>> -    // C++03 [cpp.predefined]p1:
>> -    //   The name __cplusplus is defined to the value 199711L when
>> compiling a
>> -    //   C++ translation unit.
>> -    else
>> -      Builder.defineMacro("__cplusplus", "199711L");
>> -
>> -    // C++1z [cpp.predefined]p1:
>> -    //   An integer literal of type std::size_t whose value is the
>> alignment
>> -    //   guaranteed by a call to operator new(std::size_t)
>> -    //
>> -    // We provide this in all language modes, since it seems generally
>> useful.
>> -    Builder.defineMacro("__STDCPP_DEFAULT_NEW_ALIGNMENT__",
>> -                        Twine(TI.getNewAlign() / TI.getCharWidth()) +
>> -                            TI.getTypeConstantSuffix(TI.getSizeType()));
>> -  }
>> -
>> -  // In C11 these are environment macros. In C++11 they are only defined
>> -  // as part of <cuchar>. To prevent breakage when mixing C and C++
>> -  // code, define these macros unconditionally. We can define them
>> -  // unconditionally, as Clang always uses UTF-16 and UTF-32 for 16-bit
>> -  // and 32-bit character literals.
>> -  Builder.defineMacro("__STDC_UTF_16__", "1");
>> -  Builder.defineMacro("__STDC_UTF_32__", "1");
>> -
>> -  if (LangOpts.ObjC1)
>> -    Builder.defineMacro("__OBJC__");
>> -
>> -  // OpenCL v1.0/1.1 s6.9, v1.2/2.0 s6.10: Preprocessor Directives and
>> Macros.
>> -  if (LangOpts.OpenCL) {
>> -    // OpenCL v1.0 and v1.1 do not have a predefined macro to indicate
>> the
>> -    // language standard with which the program is compiled.
>> __OPENCL_VERSION__
>> -    // is for the OpenCL version supported by the OpenCL device, which is
>> not
>> -    // necessarily the language standard with which the program is
>> compiled.
>> -    // A shared OpenCL header file requires a macro to indicate the
>> language
>> -    // standard. As a workaround, __OPENCL_C_VERSION__ is defined for
>> -    // OpenCL v1.0 and v1.1.
>> -    switch (LangOpts.OpenCLVersion) {
>> -    case 100:
>> -      Builder.defineMacro("__OPENCL_C_VERSION__", "100");
>> -      break;
>> -    case 110:
>> -      Builder.defineMacro("__OPENCL_C_VERSION__", "110");
>> -      break;
>> -    case 120:
>> -      Builder.defineMacro("__OPENCL_C_VERSION__", "120");
>> -      break;
>> -    case 200:
>> -      Builder.defineMacro("__OPENCL_C_VERSION__", "200");
>> -      break;
>> -    default:
>> -      llvm_unreachable("Unsupported OpenCL version");
>> -    }
>> -    Builder.defineMacro("CL_VERSION_1_0", "100");
>> -    Builder.defineMacro("CL_VERSION_1_1", "110");
>> -    Builder.defineMacro("CL_VERSION_1_2", "120");
>> -    Builder.defineMacro("CL_VERSION_2_0", "200");
>> -
>> -    if (TI.isLittleEndian())
>> -      Builder.defineMacro("__ENDIAN_LITTLE__");
>> -
>> -    if (LangOpts.FastRelaxedMath)
>> -      Builder.defineMacro("__FAST_RELAXED_MATH__");
>> -  }
>> -  // Not "standard" per se, but available even with the -undef flag.
>> -  if (LangOpts.AsmPreprocessor)
>> -    Builder.defineMacro("__ASSEMBLER__");
>> -  if (LangOpts.CUDA)
>> -    Builder.defineMacro("__CUDA__");
>> -}
>> -
>> -/// Initialize the predefined C++ language feature test macros defined in
>> -/// ISO/IEC JTC1/SC22/WG21 (C++) SD-6: "SG10 Feature Test
>> Recommendations".
>> -static void InitializeCPlusPlusFeatureTestMacros(const LangOptions
>> &LangOpts,
>> -                                                 MacroBuilder &Builder) {
>> -  // C++98 features.
>> -  if (LangOpts.RTTI)
>> +
>> +static void DefineFastIntType(unsigned TypeWidth, bool IsSigned,
>> +                              const TargetInfo &TI, MacroBuilder
>> &Builder) {
>> +  // stdint.h currently defines the fast int types as equivalent to the
>> least
>> +  // types.
>> +  TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth,
>> IsSigned);
>> +  if (Ty == TargetInfo::NoInt)
>> +    return;
>> +
>> +  const char *Prefix = IsSigned ? "__INT_FAST" : "__UINT_FAST";
>> +  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
>> +  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
>> +
>> +  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
>> +}
>> +
>> +
>> +/// Get the value the ATOMIC_*_LOCK_FREE macro should have for a type
>> with
>> +/// the specified properties.
>> +static const char *getLockFreeValue(unsigned TypeWidth, unsigned
>> TypeAlign,
>> +                                    unsigned InlineWidth) {
>> +  // Fully-aligned, power-of-2 sizes no larger than the inline
>> +  // width will be inlined as lock-free operations.
>> +  if (TypeWidth == TypeAlign && (TypeWidth & (TypeWidth - 1)) == 0 &&
>> +      TypeWidth <= InlineWidth)
>> +    return "2"; // "always lock free"
>> +  // We cannot be certain what operations the lib calls might be
>> +  // able to implement as lock-free on future processors.
>> +  return "1"; // "sometimes lock free"
>> +}
>> +
>> +/// \brief Add definitions required for a smooth interaction between
>> +/// Objective-C++ automated reference counting and libstdc++ (4.2).
>> +static void AddObjCXXARCLibstdcxxDefines(const LangOptions &LangOpts,
>> +                                         MacroBuilder &Builder) {
>> +  Builder.defineMacro("_GLIBCXX_PREDEFINED_OBJC_ARC_IS_SCALAR");
>> +
>> +  std::string Result;
>> +  {
>> +    // Provide specializations for the __is_scalar type trait so that
>> +    // lifetime-qualified objects are not considered "scalar" types,
>> which
>> +    // libstdc++ uses as an indicator of the presence of trivial copy,
>> assign,
>> +    // default-construct, and destruct semantics (none of which hold for
>> +    // lifetime-qualified objects in ARC).
>> +    llvm::raw_string_ostream Out(Result);
>> +
>> +    Out << "namespace std {\n"
>> +        << "\n"
>> +        << "struct __true_type;\n"
>> +        << "struct __false_type;\n"
>> +        << "\n";
>> +
>> +    Out << "template<typename _Tp> struct __is_scalar;\n"
>> +        << "\n";
>> +
>> +    if (LangOpts.ObjCAutoRefCount) {
>> +      Out << "template<typename _Tp>\n"
>> +          << "struct __is_scalar<__attribute__((objc_ownership(strong)))
>> _Tp> {\n"
>> +          << "  enum { __value = 0 };\n"
>> +          << "  typedef __false_type __type;\n"
>> +          << "};\n"
>> +          << "\n";
>> +    }
>> +
>> +    if (LangOpts.ObjCWeak) {
>> +      Out << "template<typename _Tp>\n"
>> +          << "struct __is_scalar<__attribute__((objc_ownership(weak)))
>> _Tp> {\n"
>> +          << "  enum { __value = 0 };\n"
>> +          << "  typedef __false_type __type;\n"
>> +          << "};\n"
>> +          << "\n";
>> +    }
>> +
>> +    if (LangOpts.ObjCAutoRefCount) {
>> +      Out << "template<typename _Tp>\n"
>> +          << "struct
>> __is_scalar<__attribute__((objc_ownership(autoreleasing)))"
>> +          << " _Tp> {\n"
>> +          << "  enum { __value = 0 };\n"
>> +          << "  typedef __false_type __type;\n"
>> +          << "};\n"
>> +          << "\n";
>> +    }
>> +
>> +    Out << "}\n";
>> +  }
>> +  Builder.append(Result);
>> +}
>> +
>> +static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
>> +                                               const LangOptions
>> &LangOpts,
>> +                                               const FrontendOptions
>> &FEOpts,
>> +                                               MacroBuilder &Builder) {
>> +  if (!LangOpts.MSVCCompat && !LangOpts.TraditionalCPP)
>> +    Builder.defineMacro("__STDC__");
>> +  if (LangOpts.Freestanding)
>> +    Builder.defineMacro("__STDC_HOSTED__", "0");
>> +  else
>> +    Builder.defineMacro("__STDC_HOSTED__");
>> +
>> +  if (!LangOpts.CPlusPlus) {
>> +    if (LangOpts.C17)
>> +      Builder.defineMacro("__STDC_VERSION__", "201710L");
>> +    else if (LangOpts.C11)
>> +      Builder.defineMacro("__STDC_VERSION__", "201112L");
>> +    else if (LangOpts.C99)
>> +      Builder.defineMacro("__STDC_VERSION__", "199901L");
>> +    else if (!LangOpts.GNUMode && LangOpts.Digraphs)
>> +      Builder.defineMacro("__STDC_VERSION__", "199409L");
>> +  } else {
>> +    // FIXME: Use correct value for C++20.
>> +    if (LangOpts.CPlusPlus2a)
>> +      Builder.defineMacro("__cplusplus", "201707L");
>> +    // C++17 [cpp.predefined]p1:
>> +    //   The name __cplusplus is defined to the value 201703L when
>> compiling a
>> +    //   C++ translation unit.
>> +    else if (LangOpts.CPlusPlus17)
>> +      Builder.defineMacro("__cplusplus", "201703L");
>> +    // C++1y [cpp.predefined]p1:
>> +    //   The name __cplusplus is defined to the value 201402L when
>> compiling a
>> +    //   C++ translation unit.
>> +    else if (LangOpts.CPlusPlus14)
>> +      Builder.defineMacro("__cplusplus", "201402L");
>> +    // C++11 [cpp.predefined]p1:
>> +    //   The name __cplusplus is defined to the value 201103L when
>> compiling a
>> +    //   C++ translation unit.
>> +    else if (LangOpts.CPlusPlus11)
>> +      Builder.defineMacro("__cplusplus", "201103L");
>> +    // C++03 [cpp.predefined]p1:
>> +    //   The name __cplusplus is defined to the value 199711L when
>> compiling a
>> +    //   C++ translation unit.
>> +    else
>> +      Builder.defineMacro("__cplusplus", "199711L");
>> +
>> +    // C++1z [cpp.predefined]p1:
>> +    //   An integer literal of type std::size_t whose value is the
>> alignment
>> +    //   guaranteed by a call to operator new(std::size_t)
>> +    //
>> +    // We provide this in all language modes, since it seems generally
>> useful.
>> +    Builder.defineMacro("__STDCPP_DEFAULT_NEW_ALIGNMENT__",
>> +                        Twine(TI.getNewAlign() / TI.getCharWidth()) +
>> +                            TI.getTypeConstantSuffix(TI.getSizeType()));
>> +  }
>> +
>> +  // In C11 these are environment macros. In C++11 they are only defined
>> +  // as part of <cuchar>. To prevent breakage when mixing C and C++
>> +  // code, define these macros unconditionally. We can define them
>> +  // unconditionally, as Clang always uses UTF-16 and UTF-32 for 16-bit
>> +  // and 32-bit character literals.
>> +  Builder.defineMacro("__STDC_UTF_16__", "1");
>> +  Builder.defineMacro("__STDC_UTF_32__", "1");
>> +
>> +  if (LangOpts.ObjC1)
>> +    Builder.defineMacro("__OBJC__");
>> +
>> +  // OpenCL v1.0/1.1 s6.9, v1.2/2.0 s6.10: Preprocessor Directives and
>> Macros.
>> +  if (LangOpts.OpenCL) {
>> +    // OpenCL v1.0 and v1.1 do not have a predefined macro to indicate
>> the
>> +    // language standard with which the program is compiled.
>> __OPENCL_VERSION__
>> +    // is for the OpenCL version supported by the OpenCL device, which is
>> not
>> +    // necessarily the language standard with which the program is
>> compiled.
>> +    // A shared OpenCL header file requires a macro to indicate the
>> language
>> +    // standard. As a workaround, __OPENCL_C_VERSION__ is defined for
>> +    // OpenCL v1.0 and v1.1.
>> +    switch (LangOpts.OpenCLVersion) {
>> +    case 100:
>> +      Builder.defineMacro("__OPENCL_C_VERSION__", "100");
>> +      break;
>> +    case 110:
>> +      Builder.defineMacro("__OPENCL_C_VERSION__", "110");
>> +      break;
>> +    case 120:
>> +      Builder.defineMacro("__OPENCL_C_VERSION__", "120");
>> +      break;
>> +    case 200:
>> +      Builder.defineMacro("__OPENCL_C_VERSION__", "200");
>> +      break;
>> +    default:
>> +      llvm_unreachable("Unsupported OpenCL version");
>> +    }
>> +    Builder.defineMacro("CL_VERSION_1_0", "100");
>> +    Builder.defineMacro("CL_VERSION_1_1", "110");
>> +    Builder.defineMacro("CL_VERSION_1_2", "120");
>> +    Builder.defineMacro("CL_VERSION_2_0", "200");
>> +
>> +    if (TI.isLittleEndian())
>> +      Builder.defineMacro("__ENDIAN_LITTLE__");
>> +
>> +    if (LangOpts.FastRelaxedMath)
>> +      Builder.defineMacro("__FAST_RELAXED_MATH__");
>> +  }
>> +  // Not "standard" per se, but available even with the -undef flag.
>> +  if (LangOpts.AsmPreprocessor)
>> +    Builder.defineMacro("__ASSEMBLER__");
>> +  if (LangOpts.CUDA)
>> +    Builder.defineMacro("__CUDA__");
>> +}
>> +
>> +/// Initialize the predefined C++ language feature test macros defined in
>> +/// ISO/IEC JTC1/SC22/WG21 (C++) SD-6: "SG10 Feature Test
>> Recommendations".
>> +static void InitializeCPlusPlusFeatureTestMacros(const LangOptions
>> &LangOpts,
>> +                                                 MacroBuilder &Builder) {
>> +  // C++98 features.
>> +  if (LangOpts.RTTI)
>>      Builder.defineMacro("__cpp_rtti", "199711");
>>    if (LangOpts.CXXExceptions)
>>      Builder.defineMacro("__cpp_exceptions", "199711");
>>
>> Modified: cfe/trunk/test/Driver/unknown-std.c
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/unknown-std.c?rev=320089&r1=320088&r2=320089&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/Driver/unknown-std.c (original)
>> +++ cfe/trunk/test/Driver/unknown-std.c Thu Dec  7 13:46:26 2017
>> @@ -1,20 +1,22 @@
>> -// This file checks output given when processing C/ObjC files.
>> -// When user selects invalid language standard
>> -// print out supported values with short description.
>> -
>> -// RUN: not %clang %s -std=foobar -c 2>&1 | FileCheck --match-full-lines
>> %s
>> -// RUN: not %clang -x objective-c %s -std=foobar -c 2>&1 | FileCheck
>> --match-full-lines %s
>> -// RUN: not %clang -x renderscript %s -std=foobar -c 2>&1 | FileCheck
>> --match-full-lines %s
>> -
>> -// CHECK: error: invalid value 'foobar' in '-std=foobar'
>> -// CHECK-NEXT: note: use 'c89', 'c90', or 'iso9899:1990' for 'ISO C 1990'
>> standard
>> -// CHECK-NEXT: note: use 'iso9899:199409' for 'ISO C 1990 with amendment
>> 1' standard
>> -// CHECK-NEXT: note: use 'gnu89' or 'gnu90' for 'ISO C 1990 with GNU
>> extensions' standard
>> -// CHECK-NEXT: note: use 'c99' or 'iso9899:1999' for 'ISO C 1999'
>> standard
>> -// CHECK-NEXT: note: use 'gnu99' for 'ISO C 1999 with GNU extensions'
>> standard
>> -// CHECK-NEXT: note: use 'c11' or 'iso9899:2011' for 'ISO C 2011'
>> standard
>> -// CHECK-NEXT: note: use 'gnu11' for 'ISO C 2011 with GNU extensions'
>> standard
>> -
>> -// Make sure that no other output is present.
>> -// CHECK-NOT: {{^.+$}}
>> -
>> +// This file checks output given when processing C/ObjC files.
>> +// When user selects invalid language standard
>> +// print out supported values with short description.
>> +
>> +// RUN: not %clang %s -std=foobar -c 2>&1 | FileCheck --match-full-lines
>> %s
>> +// RUN: not %clang -x objective-c %s -std=foobar -c 2>&1 | FileCheck
>> --match-full-lines %s
>> +// RUN: not %clang -x renderscript %s -std=foobar -c 2>&1 | FileCheck
>> --match-full-lines %s
>> +
>> +// CHECK: error: invalid value 'foobar' in '-std=foobar'
>> +// CHECK-NEXT: note: use 'c89', 'c90', or 'iso9899:1990' for 'ISO C 1990'
>> standard
>> +// CHECK-NEXT: note: use 'iso9899:199409' for 'ISO C 1990 with amendment
>> 1' standard
>> +// CHECK-NEXT: note: use 'gnu89' or 'gnu90' for 'ISO C 1990 with GNU
>> extensions' standard
>> +// CHECK-NEXT: note: use 'c99' or 'iso9899:1999' for 'ISO C 1999'
>> standard
>> +// CHECK-NEXT: note: use 'gnu99' for 'ISO C 1999 with GNU extensions'
>> standard
>> +// CHECK-NEXT: note: use 'c11' or 'iso9899:2011' for 'ISO C 2011'
>> standard
>> +// CHECK-NEXT: note: use 'gnu11' for 'ISO C 2011 with GNU extensions'
>> standard
>> +// CHECK-NEXT: note: use 'c17' or 'iso9899:2017' for 'ISO C 2017'
>> standard
>> +// CHECK-NEXT: note: use 'gnu17' for 'ISO C 2017 with GNU extensions'
>> standard
>> +
>> +// Make sure that no other output is present.
>> +// CHECK-NOT: {{^.+$}}
>> +
>>
>>
>> _______________________________________________
>> cfe-commits mailing list
>> cfe-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>
>
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