[Bug fortran/68676] ICE in gfc_match_formal_arglist when compiling gfortran.dg/submodule_10.f08

[paul.richard.thomas at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68676

--- Comment #5 from paul.richard.thomas at gmail dot com <paul.richard.thomas at gmail dot com> ---
As promised, I am working to fix this. Thanks for your contributions.

Paul

On 4 December 2015 at 10:59, ubizjak at gmail dot com
<gcc-bugzilla@gcc.gnu.org> wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68676
>
> --- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
> (In reply to Dominique d'Humieres from comment #1)
>> See the thread starting at
>> https://gcc.gnu.org/ml/fortran/2015-12/msg00030.html.
>>
>> Note that I don't see these failures on x86_64-apple-darwin14 (no valgrind
>> error).
>
> Please try the following patch. Using this patch, the compiler crashes reliably
> for me, even on x86_64-linux where it didn't crash before.
>
> --cut here--
> Index: decl.c
> ===================================================================
> --- decl.c      (revision 231250)
> +++ decl.c      (working copy)
> @@ -4692,7 +4692,7 @@ gfc_match_formal_arglist (gfc_symbol *progname, in
>  {
>    gfc_formal_arglist *head, *tail, *p, *q;
>    char name[GFC_MAX_SYMBOL_LEN + 1];
> -  gfc_symbol *sym;
> +  gfc_symbol *sym = NULL;
>    match m;
>    gfc_formal_arglist *formal = NULL;
>
> --cut here--
>
> --
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