target/8343: m68k-elf/rtems ICE at instantiate_virtual_regs_1

[Jan Hubicka]

> Synopsis: m68k-elf/rtems ICE at instantiate_virtual_regs_1
> 
> Responsible-Changed-From-To: unassigned->hubicka
> Responsible-Changed-By: joel
> Responsible-Changed-When: Fri Oct 25 14:05:18 2002
> Responsible-Changed-Why:
>     Tracked to patch you committed. :)

That just adds check for bugs elsewhere... OK I will check at monday.

Honza
>     ===================================
>     FInal feedback from Peter.
>     
>     'cvs update -D "2001/05/19 04:24:49" gcc' works
>     'cvs update -D "2001/05/19 04:29:50" gcc' fails
>     
>     The only thing of interest changing is gcc/gcc/recog.c, from version
>     1.102 to version 1.103.
>     
>     The log for gcc/gcc/recog.c looks like:
>     
>     revision 1.103
>     date: 2001/05/19 08:24:50;  author: hubicka;  state: Exp;  lines: +85 -150
>             * recog.c (general_operand): Prohibit nonzero subreg bytes on
>             subregs containing mem.
>     
>     
>     This was with the following testcase:
>     
>     extern unsigned foo;
>     unsigned long long
>     bar (void)
>     {
>        unsigned long long t = foo;
>        return t * foo;
>     }
>     
>     
>     ===================================
> 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8343