[Bug c/41517] Unexpected behaviour of #pragma in statement context

["jan.echternach at de dot gbs.com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41517

Jan Echternach <jan.echternach at de dot gbs.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jan.echternach at de dot gbs.com

--- Comment #1 from Jan Echternach <jan.echternach at de dot gbs.com> ---
I can confirm this bug in gcc 4.9 (Debian 4.9.2-10). A different example which
also produces wrong code (should return 0, but returns 1):

//#include <stdio.h>
int main ()
{
    if (0)
#pragma GCC diagnostic ignored "-Wtype-limits"
    {
        //printf ("bug\n");
        return 1;
    }
    //printf ("ok\n");
    return 0;
}

And an example that fails to compile ("error: ‘else’ without a previous ‘if’"):

void foo (void)
{
    if (0)
#pragma GCC diagnostic ignored "-Wtype-limits"
    {}
    else {}
}
>From gcc-bugs-return-499038-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 08 15:37:22 2015
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Subject: [Bug tree-optimization/67794] [6 regression] internal compiler error: Segmentation fault
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idg794

--- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> ---
I have proposed a fix on the mailing list:

https://gcc.gnu.org/ml/gcc-patches/2015-10/msg00858.html