gcc 3.1 hangs forever on Red Hat 7.2 system

[Jakub Jelinek]

On Tue, Jun 04, 2002 at 09:39:51PM -0700, Andy Tai wrote:
> Hi, I think this is a possible bug in gcc 3.1 but I
> send to this list to be sure first.  On a Red Hat
> GNU/Linux 7.2 system (x86), with gcc 3.1, when
> compiling the following source file with optimization
> turned on (-O1 or above), gcc 3.1 hangs forever. With
> optimization off (or use -O0), gcc 3.1 finishes
> compiling with no problems.
> 
> test.c:
> -----
> void f(void)
> {
>     char *c;
>     do
>     {
>         if (c)
>             break;
>     } while (1);
>     if (!c)
>         while (1)
>             f();
> }
> -----
> The following command will hang forever (same with
> -O2, -O3, etc.):
> 
> % gcc -O1 -c test.c

This should be reported into http://gcc.gnu.org/gnats.html, not here.
Anyway, I'll work on this.

	Jakub