[Bug c/53063] New: encode group options in the .opt files

[Bug c/53063] New: encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

             Bug #: 53063
           Summary: encode group options in the .opt files
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: manu@gcc.gnu.org


Encoding group options in the .opt files will help to delete a lot of code and
fix a lot of bugs in the way options enabled by other options are handled. For
example,

Wall
C ObjC C++ ObjC++ Warning
Enable most warning messages
Enables(Wwhatever, Wfoo=2)
EnablesIf((optimize >= 2), Warray-bounds)
EnablesIf((c_dialect_cxx ()), Wsign-compare, Wreorder, Wnarrowing)

Suggestions on how to implement this are welcome.

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-05-11 12:24:00 UTC ---
Author: manu
Date: Fri May 11 12:23:50 2012
New Revision: 187403

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187403
Log:
2012-05-11  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR 53063
gcc/
    * doc/options.texi (EnabledBy): Document
    * opts.c: Include opts.h and options.h before tm.h.
    (finish_options): Do not handle some sub-options here...
    (common_handle_option): ... instead call common_handle_option_auto here.
    * optc-gen.awk: Handle EnabledBy.
    * opth-gen.awk: Declare common_handle_option_auto.
    * common.opt (Wuninitialized): Use EnabledBy. Delete Init.
    (Wmaybe-uninitialized): Likewise.
        (Wunused-but-set-variable): Likewise.
        (Wunused-function): Likewise.
        (Wunused-label): Likewise.
        (Wunused-value): Likewise.
        (Wunused-variable): Likewise.
        * opt-read.awk: Create opt_numbers array.
ada/
    * gcc-interface/misc.c (gnat_parse_file): Move before ...
    (gnat_handle_option): ... this. Use handle_generated_option.
c-family/
    * c-opts.c (c_common_handle_option): Use handle_generated_option
    to enable sub-options.
fortran/
    * options.c: Include diagnostics.h instead of
    diagnostics-core.h.
    (set_Wall): Do not see warn_unused here.
    (gfc_handle_option): Set it here using handle_generated_option.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/gcc-interface/misc.c
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/common.opt
    trunk/gcc/doc/options.texi
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/options.c
    trunk/gcc/opt-read.awk
    trunk/gcc/optc-gen.awk
    trunk/gcc/opth-gen.awk
    trunk/gcc/opts.c

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-05-13 22:30:34 UTC ---
*** Bug 53072 has been marked as a duplicate of this bug. ***

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #3 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-05-14 13:30:39 UTC ---
Author: manu
Date: Mon May 14 13:30:32 2012
New Revision: 187462

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187462
Log:
2012-05-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR 53063
c-family/
    * c.opt (Wc++0X-compat,Wdelete-non-virtual-dtor,Wjump-misses-init,
    Wreorder): Use LangEnabledBy.
    * c-opts.c (c_common_handle_option): Do not enable them
    explicitly. Call lang-specific generated functions.
    (c_common_post_options): Do not set them here.
gcc/
    * doc/options.texi: (LangEnabledBy): Document it.
    * optc-gen.awk: Handle LangEnabledBy.
    * opth-gen.awk: Generate declaration for lang-specific functions.
    * opt-read.awk: Record lang numbers.
    * opt-functions.awk (flag_set_p): Ignore the arguments of flags.
    (lang_sanitized_name): New.
ada/
    * gcc-interface/misc.c: Include opts.h and options.h before tm.h.
    (gnat_handle_option): Call lang-specific generated function.
fortran/
    * options.c (gfc_handle_option): Call lang-specific generated function.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/gcc-interface/misc.c
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/doc/options.texi
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/options.c
    trunk/gcc/opt-functions.awk
    trunk/gcc/opt-read.awk
    trunk/gcc/optc-gen.awk
    trunk/gcc/opth-gen.awk

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-10-16 15:31:53 UTC ---
Author: manu
Date: Tue Oct 16 15:31:46 2012
New Revision: 192502

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192502
Log:
2012-10-16  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    PR c/40989
gcc/
    * optc-gen.awk: Handle new form of LangEnabledBy.
    * opts.c (set_Wstrict_aliasing): Declare here. Make static.
    * common.opt (Wstrict-aliasing=,Wstrict-overflow=): Do not use Init.
    * doc/options.texi (LangEnabledBy): Document new form.
    * flags.h (set_Wstrict_aliasing): Do not declare.
c-family/
    * c.opt (Wstrict-aliasing=,Wstrict-overflow=): Use LangEnabledBy.
    * c-opts.c (c_common_handle_option): Do not set them here. Add
    comment.
    (c_common_post_options): Likewise.
testsuite/
    * gcc.dg/Wstrict-overflow-24.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/Wstrict-overflow-24.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/common.opt
    trunk/gcc/doc/options.texi
    trunk/gcc/flags.h
    trunk/gcc/optc-gen.awk
    trunk/gcc/opts.c
    trunk/gcc/testsuite/ChangeLog

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-10-16 15:39:09 UTC ---
Author: manu
Date: Tue Oct 16 15:38:58 2012
New Revision: 192503

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192503
Log:
2012-10-16  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    PR c/40989
    * doc/options.texi (EnabledBy): Document new form.
    * optc-gen.awk: Handle new form of EnabledBy.
    * common.opt (Wunused-but-set-parameter): Use EnabledBy.
    (Wunused-parameter): Likewise.
    * opts.c (finish_options): Do not handle them explicitly.
    * opt-functions.awk (search_var_name): New.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/common.opt
    trunk/gcc/doc/options.texi
    trunk/gcc/opt-functions.awk
    trunk/gcc/optc-gen.awk
    trunk/gcc/opts.c

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #6 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-10-20 14:17:14 UTC ---
Author: manu
Date: Sat Oct 20 14:17:08 2012
New Revision: 192635

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192635
Log:
2012-10-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    PR c/40989
c-family/
    * c.opt (Waddress,Wchar-subscripts,Wsign-conversion,Wimplicit,
    Wimplicit-function-declaration,Wimplicit-int,Wsizeof-pointer-memaccess,
    Wnarrowing,Wparentheses,Wpointer-sign,Wreturn-type,Wsequence-point,
    Wsign-compare,Wuninitialized,Wmaybe-uninitialized,Wunused,
    Wvolatile-register-var): Add LangEnabledBy or EnabledBy.
    * c-opts.c (c_common_handle_option): Remove explicit handling from
    here.
    (c_common_post_options): Likewise.
gcc/
    * opts.c (finish_options): Remove explicit handling from here.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/opts.c

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #7 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-11-07 17:54:20 UTC ---
Author: manu
Date: Wed Nov  7 17:54:11 2012
New Revision: 193302

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193302
Log:
c-family/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    * c.opt(Warray-bounds,Wdelete-non-virtual-dtor,Wenum-compare,
    Wmain,Woverlength-strings, Wunknown-pragmas,Wunused-macros):
    Use LangEnabledBy.
    (Wswitch,Wswitch-default,Wswitch-enum): Likewise. Move here from
    common.opt.
    (Wvariadic-macros): Init(1).
    * c-opts.c (c_common_handle_option): Do not handle them
    explicitly.
    (c_common_post_options): Likewise.
    (sanitize_cpp_opts): warn_unused_macros is now
    cpp_warn_unused_macros.
    (push_command_line_include): Likewise.
    * c-common.c (warn_unknown_pragmas): Do not define.
    * c-common.h (warn_unknown_pragmas): Do not declare.
gcc/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    * common.opt (Wswitch,Wswitch-default,Wswitch-enum): Move to c.opt.
fortran/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    * options.c (set_Wall): Do not set warn_switch here.



Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.c
    trunk/gcc/c-family/c-common.h
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/common.opt
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/options.c

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #8 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-11-07 18:27:22 UTC ---
Author: manu
Date: Wed Nov  7 18:27:14 2012
New Revision: 193304

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193304
Log:
gcc/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    * doc/invoke.texi (Wformat): Update.
c-family/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    * c.opt (Wformat): Make it Alias Wformat=1.
    (Wformat-contains-nul,Wformat-extra-args,Wformat-nonliteral,
    Wformat-security,Wformat-y2k,Wformat-zero-length): Use
    LangEnabledBy.
    (Wformat=): RejectNegative. Use LangEnabledBy.
    (Wnonnull): Use LangEnabledBy.
    * c-opts.c (c_common_handle_option): Do not handle Wformat here.
    * c-format.c (set_Wformat): Delete.
    (decode_format_attr): Replace OPT_Wformat with OPT_Wformat_.
        (maybe_read_dollar_number):  Likewise.
        (avoid_dollar_number):  Likewise.
        (finish_dollar_format_checking):  Likewise.
        (check_format_info):  Likewise.
        (check_format_info_main):  Likewise.
        (check_format_types):  Likewise.
        (format_type_warning):  Likewise.
        * c-common.c (int):  Likewise.
        (check_function_sentinel):  Likewise.
        * c-common.h (warn_format,set_Wformat): Do not declare here.
testsuite/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/53063
    * gcc.dg/warn-nsstring.c: Use -Wformat explicitly.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.c
    trunk/gcc/c-family/c-common.h
    trunk/gcc/c-family/c-format.c
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/warn-nsstring.c

[Bug c/53063] encode group options in the .opt files

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53063

--- Comment #10 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Author: manu
Date: Tue Aug 19 22:37:49 2014
New Revision: 214200

URL: https://gcc.gnu.org/viewcvs?rev=214200&root=gcc&view=rev
Log:
gcc/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/60975
    PR c/53063
    * doc/options.texi (CPP): Document it.
    * doc/invoke.texi (Wvariadic-macros): Fix documentation.
    * optc-gen.awk: Handle CPP.
    * opth-gen.awk: Likewise.

gcc/c-family/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/60975
    PR c/53063
    * c.opt (Wvariadic-macros): Use CPP and LangEnabledBy.
    * c-opts.c (c_common_handle_option): Call cpp_handle_option_auto.
    (c_common_post_options): Call init_global_opts_from_cpp.
    (sanitize_cpp_opts): Do not handle Wvariadic-macros here.

gcc/testsuite/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/60975
    PR c/53063
    * gcc.dg/cpp/Wvariadic-1p.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/cpp/Wvariadic-1p.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/doc/invoke.texi
    trunk/gcc/doc/options.texi
    trunk/gcc/optc-gen.awk
    trunk/gcc/opth-gen.awk
    trunk/gcc/testsuite/ChangeLog
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60975

--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Author: manu
Date: Tue Aug 19 22:37:49 2014
New Revision: 214200

URL: https://gcc.gnu.org/viewcvs?rev=214200&root=gcc&view=rev
Log:
gcc/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/60975
    PR c/53063
    * doc/options.texi (CPP): Document it.
    * doc/invoke.texi (Wvariadic-macros): Fix documentation.
    * optc-gen.awk: Handle CPP.
    * opth-gen.awk: Likewise.

gcc/c-family/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/60975
    PR c/53063
    * c.opt (Wvariadic-macros): Use CPP and LangEnabledBy.
    * c-opts.c (c_common_handle_option): Call cpp_handle_option_auto.
    (c_common_post_options): Call init_global_opts_from_cpp.
    (sanitize_cpp_opts): Do not handle Wvariadic-macros here.

gcc/testsuite/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR c/60975
    PR c/53063
    * gcc.dg/cpp/Wvariadic-1p.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/cpp/Wvariadic-1p.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/doc/invoke.texi
    trunk/gcc/doc/options.texi
    trunk/gcc/optc-gen.awk
    trunk/gcc/opth-gen.awk
    trunk/gcc/testsuite/ChangeLog
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60975

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
FIXED in GCC 5.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51303

--- Comment #3 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Author: manu
Date: Tue Aug 19 22:52:02 2014
New Revision: 214201

URL: https://gcc.gnu.org/viewcvs?rev=214201&root=gcc&view=rev
Log:
gcc/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR preprocessor/51303
    * incpath.c (remove_duplicates): Use cpp_warning.

gcc/c-family/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR preprocessor/51303
    * c-common.c (struct reason_option_codes_t option_codes):
    Add CPP_W_MISSING_INCLUDE_DIRS. Sort alphabetically.

gcc/testsuite/ChangeLog:

2014-08-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

    PR preprocessor/51303
    * gcc.dg/cpp/Wmissingdirs.c: Test for the warning option.



Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.c
    trunk/gcc/incpath.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/cpp/Wmissingdirs.c
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51303

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
FIXED for GCC 5.0
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From: "pangbw at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/62196] New: running time segment fault with valarray
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idb196

            Bug ID: 62196
           Summary: running time segment fault with valarray
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pangbw at gmail dot com

The code would segment fault at running time, I see the same result with G++
4.6.3(which comes with Ubuntu 12.04) and 4.9.1:

#include <iostream>
#include <valarray>

int main(int argc, char *argv[])
{
  const char vl[] = {"abcdefghijklmnopqrstuvwxyz"};
  const char vu[] = {"ABCDEFGHIJKLMNOPQRSTUVWXYZ"};
  const std::valarray<char> v0(vl, 27), vm6(vu, 6);
  const bool vb[] = {false, false, true, true, false, true};
  const std::valarray<bool> vmask(vb, 6);
  std::valarray<char> x = v0;

  for(int i = 0; i < x.size(); i++)
    std::cout << x[i];
  std::cout << std::endl;

  x[vmask] = vm6;

  for(int i = 0; i < x.size(); i++)
    std::cout << x[i];
  std::cout << std::endl;
  return 0;
}

The command line is just simply as:
g++ -std=c++0x x.cpp