target/6922: -mcpu=ultrasparc causes i.c.e. on lame mp3 encoder

[rth@gcc.gnu.org]

Synopsis: -mcpu=ultrasparc causes i.c.e. on lame mp3 encoder

State-Changed-From-To: open->analyzed
State-Changed-By: rth
State-Changed-When: Sun Jun 16 23:07:23 2002
State-Changed-Why:
    Reproduced just fine with native and cross-compiler.
    Bet you only tried 64-bit, Dave.
    
    RTL incoming to loop has
      (mult:DI (sign_extend:DI (reg:SI))
               (sign_extend:DI (reg:SI)))
    which is not handled by expand_mult_add.  We wind up trying
    to copy (sign_extend:DI (reg:SI)) directly into a register,
    which we can't do in 32-bit mode.
    
    Patch in progress.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6922