Bug in gcc-2.95 Sparc/Solaris

[Andreas Gerstlauer]

Hi!

I ran into a problem when trying the latest snapshot of the 
upcoming gcc-2.95 release on our Sun Ultra5 machine.
It's a standard installation of the compiler ("configure"
without any special options, "make bootstrap-lean").

The problem does only happen with optimizations enabled (-O2)
and CPU type >= "v8" (-mcpu=v8).

The corresponding set of C++ files is enclosed below as a gzip'ed
tar attachment.

Here's the log:

% gtar xzf bugcode.tar.gz
% uname -a
SunOS specc.ics.uci.edu 5.5.1 Generic_103640-27 sun4u sparc SUNW,Ultra-5_10
% g++ -v
Reading specs from /opt/contrib/egcs-19990623/lib/gcc-lib/sparc-sun-solaris2.5.
1/gcc-2.95/specs
gcc version gcc-2.95 19990623 (prerelease)
%  g++ -DSPARC -DSOLARIS -mcpu=v8 -fno-implicit-templates -O2  -c -Wall -I. 
-DDEBUG -fimplicit-templates -o bit_debug.o bit.cc
bit.cc: In function `bool testOp(short int, short int, long int, long int, 
long long int, long long int)':
bit.cc:813: Could not find a spill register
(insn 7373 7376 7380 (parallel[
            (set (mem:SI (plus:SI (reg:SI 30 %fp)
                        (const_int -19012 [0xffffb5bc])) 0)
                (div:SI (reg/v:SI 110)
                    (reg/v:SI 111)))
            (clobber (scratch:SI))
        ] ) 314 {divsi3} (nil)
    (expr_list:REG_UNUSED (scratch:SI)
        (nil)))

If there any additional questions or tests I can run here, feel
free to contact me!

Regards,
  Andreas

-- 
Andreas Gerstlauer                         gerstlauer@ics.uci.edu
                                   http://www.ics.uci.edu/~gerstl