Re: r320089 - Add new language mode flags for C17.
On Thu, Dec 7, 2017 at 3:05 PM, Aaron Ballman wrote: > On Thu, Dec 7, 2017 at 6:00 PM, Aaron Ballman wrote: >> On Thu, Dec 7, 2017 at 5:59 PM, Ahmed Bougacha >> wrote: >>> On Thu, Dec 7, 2017 at 2:56 PM, Richard Smith via cfe-commits >>> wrote: Looks like this might have messed up the line endings in a few files? >>> >>> Should be taken care of in r320112. >> >> Thanks, I was just getting on that. Sorry about the inadvertent churn there! > > I corrected the rest of the line endings in r320113. Thanks! -Ahmed > ~Aaron > >> >> ~Aaron >> >>> >>> -Ahmed >>> On 7 December 2017 at 13:46, Aaron Ballman via cfe-commits 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 > al
Re: r320089 - Add new language mode flags for C17.
On Thu, Dec 7, 2017 at 3:00 PM, Aaron Ballman wrote: > On Thu, Dec 7, 2017 at 5:59 PM, Ahmed Bougacha > wrote: >> On Thu, Dec 7, 2017 at 2:56 PM, Richard Smith via cfe-commits >> wrote: >>> Looks like this might have messed up the line endings in a few files? >> >> Should be taken care of in r320112. Oh, I missed some files. I'll take care of it. -Ahmed > Thanks, I was just getting on that. Sorry about the inadvertent churn there! > > ~Aaron > >> >> -Ahmed >> >>> On 7 December 2017 at 13:46, Aaron Ballman via cfe-commits >>> 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 L
Re: r320089 - Add new language mode flags for C17.
On Thu, Dec 7, 2017 at 6:00 PM, Aaron Ballman wrote: > On Thu, Dec 7, 2017 at 5:59 PM, Ahmed Bougacha > wrote: >> On Thu, Dec 7, 2017 at 2:56 PM, Richard Smith via cfe-commits >> wrote: >>> Looks like this might have messed up the line endings in a few files? >> >> Should be taken care of in r320112. > > Thanks, I was just getting on that. Sorry about the inadvertent churn there! I corrected the rest of the line endings in r320113. ~Aaron > > ~Aaron > >> >> -Ahmed >> >>> On 7 December 2017 at 13:46, Aaron Ballman via cfe-commits >>> 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 Defin
Re: r320089 - Add new language mode flags for C17.
On Thu, Dec 7, 2017 at 5:59 PM, Ahmed Bougacha wrote: > On Thu, Dec 7, 2017 at 2:56 PM, Richard Smith via cfe-commits > wrote: >> Looks like this might have messed up the line endings in a few files? > > Should be taken care of in r320112. Thanks, I was just getting on that. Sorry about the inadvertent churn there! ~Aaron > > -Ahmed > >> On 7 December 2017 at 13:46, Aaron Ballman via cfe-commits >> 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 >>> - >>> -#if
Re: r320089 - Add new language mode flags for C17.
On Thu, Dec 7, 2017 at 2:56 PM, Richard Smith via cfe-commits 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 > 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) \ >> - LANG
r320089 - Add new language mode flags for C17.
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_
