[Bug other/39851] gcc -Q --help=target does not list extensions selected by -march=

["marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39851

--- Comment #13 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Fri Sep 15 08:18:34 2017
New Revision: 252787

URL: https://gcc.gnu.org/viewcvs?rev=252787&root=gcc&view=rev
Log:
Subject: Backport r251400

2017-09-15  Martin Liska  <mliska@suse.cz>

        Backport from mainline
        2017-08-29  Martin Liska  <mliska@suse.cz>

        PR other/39851
        * gcc.c (driver_handle_option): Add new argument.
        * opts-common.c (handle_option): Pass
        target_option_override_hook.
        * opts-global.c (lang_handle_option): Add new option.
        (set_default_handlers):  Add new argument.
        (decode_options): Likewise.
        * opts.c (target_handle_option): Likewise.
        (common_handle_option): Call target_option_override_hook.
        * opts.h (struct cl_option_handler_func): Add hook for
        target option override.
        (struct cl_option_handlers): Likewise.
        (set_default_handlers): Add new argument.
        (decode_options): Likewise.
        (common_handle_option): Likewise.
        (target_handle_option): Likewise.
        * toplev.c (toplev::main): Pass targetm.target_option.override
        hook.
2017-09-15  Martin Liska  <mliska@suse.cz>

        Backport from mainline
        2017-08-29  Martin Liska  <mliska@suse.cz>

        PR other/39851
        * c-common.c (parse_optimize_options): Add argument to function
        call.
        * c-pragma.c (handle_pragma_diagnostic): Likewise.

Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/c-family/ChangeLog
    branches/gcc-7-branch/gcc/c-family/c-common.c
    branches/gcc-7-branch/gcc/c-family/c-pragma.c
    branches/gcc-7-branch/gcc/gcc.c
    branches/gcc-7-branch/gcc/opts-common.c
    branches/gcc-7-branch/gcc/opts-global.c
    branches/gcc-7-branch/gcc/opts.c
    branches/gcc-7-branch/gcc/opts.h
    branches/gcc-7-branch/gcc/toplev.c