[Bug jit/68446] jit testsuite failures seen inside dwarf2out.c:gen_producer_string

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68446

--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #0)
[...]
> I ran a git bisect, it indicated that the failure of test-volatile.c was
> introduced by:
> 
> commit 25faed340686df8d7bb2242dc8d04285976922b6
> Author: marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4>
> Date:   Thu Nov 12 15:50:05 2015 +0000
> 
>     Fix big memory leak in ix86_valid_target_attribute_p
>     
>         * config/i386/i386.c (ix86_valid_target_attribute_p):
>         Finalize options at the of the function.
>         * gcc.c (driver_get_configure_time_options): Call newly
>         introduced init_opts_obstack.
>         * lto-wrapper.c (main): Likewise.
>         * opts.c (init_opts_obstack): New function.
>         (init_options_struct): Call newly
>         introduced init_opts_obstack.
>         * opts.h (init_options_struct): Declare.

i.e. r230264 (hopefully bugzilla will URL-ify this)