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Date: Sun, 16 Jun 2002 23:12:00 -0000
Message-ID: <20020617060724.6233.qmail@sources.redhat.com>
To: davem@redhat.com, dontspamonme@excite.com, gcc-bugs@gcc.gnu.org,
  gcc-prs@gcc.gnu.org, rth@gcc.gnu.org
From: rth@gcc.gnu.org
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Subject: Re: target/6922: -mcpu=ultrasparc causes i.c.e. on lame mp3 encoder
X-SW-Source: 2002-06/txt/msg00376.txt.bz2
List-Id: <gcc-prs.sourceware.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