g77 in egcs-2.91.29 fails to build LAPACK

[Tomislav Goles]

Hi,
I have just attempted to build LAPACK 2.0 with g77 from the latest snapshot but 
got a strange failure. I was able to build this same version of LAPACK with g77
from egcs1.0.2 (the only other difference is that this time I passed -O3 instead of
-O2 to g77).


System info:
# g77 -v
Reading specs from /usr/local/egcs/lib/gcc-lib/hppa1.1-hp-hpux10.01/egcs-2.91.29/specs
gcc version egcs-2.91.29 19980517 (gcc2 ss-980502 experimental)


Here is where it failed:

g77 -O3 -c chetri.f
g77 -O3 -c chetrs.f
g77 -O3 -c chgeqz.f
chgeqz.f: In subroutine `chgeqz':
chgeqz.f:720: internal error--unrecognizable insn:
(insn 7196 7168 7194 (set (reg:SF 3091)
        (mem/s:SF (plus:SI (reg:SI 829)
                (reg:SI 3102)))) -1 (insn_list 7193 (nil))
    (nil))
/opt/src/egcs-19980517/gcc/toplev.c:1131: Internal compiler error in function fatal_insn
make[1]: *** [chgeqz.o] Error 1
make[1]: Leaving directory `/opt/src/LAPACK/SRC'
make: *** [lapacklib] Error 2