[Bug driver/71651] Option suggestion provides a non-existing hint

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71651

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Thu Jun 30 14:39:10 2016
New Revision: 237881

URL: https://gcc.gnu.org/viewcvs?rev=237881&root=gcc&view=rev
Log:
Fix bogus option suggestions for RejectNegative options (PR driver/71651)

gcc/ChangeLog:
        Backport from trunk r237880.
        2016-06-30  David Malcolm  <dmalc...@redhat.com>

        PR driver/71651
        * gcc.c (driver::build_option_suggestions): Pass "option" to
        add_misspelling_candidates.
        * opts-common.c (add_misspelling_candidates): Add "option" param;
        use it to avoid adding negated forms for options marked with
        RejectNegative.
        * opts.h (add_misspelling_candidates): Add "option" param.

gcc/testsuite/ChangeLog:
        Backport from trunk r237880.
        2016-06-30  David Malcolm  <dmalc...@redhat.com>

        PR driver/71651
        * gcc.dg/spellcheck-options-12.c: New test case.


Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/spellcheck-options-12.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/gcc.c
    branches/gcc-6-branch/gcc/opts-common.c
    branches/gcc-6-branch/gcc/opts.h
    branches/gcc-6-branch/gcc/testsuite/ChangeLog