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

[joel@gcc.gnu.org]

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. :)
    ===================================
    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