ICE : HP g77 look unrolling
Jeffrey A Law
law@cygnus.com
Fri Jan 15 01:54:00 GMT 1999
In message <001501bddd74$9da4a5c0$0454c19d@pcoptomc1.intec.rug.ac.be>you writ
e:
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> Hello,
>
> The bug I reported a while ago on a pre-1.1 snapshot is still present in th
> e
> 1.1 release :
>
> gcc -v
>
> Reading specs from
> /users/opt/pbienst/bin/gnu/lib/gcc-lib/hppa1.1-hp-hpux9.05/egcs-2.91.57/spe
> c
> s
> gcc version egcs-2.91.57 19980901 (egcs-1.1 release)
>
> When compiling the file zgelsx.f from the LAPACK distribution (see
> attachment), I get an ICE when combining -O2 and -funroll-loops :
>
>
> g77 -O2 -funroll-loops zgelsx.f
> zgelsx.f: In subroutine `zgelsx':
> zgelsx.f:352: internal error--unrecognizable insn:
> (insn 2932 2936 2931 (set (reg:DF 1152)
> (mem/s:DF (plus:SI (reg:SI 1098)
> (const_int 16)))) -1 (insn_list 2874 (insn_list 2884
> (insn_list 2888 (insn_list 2892(insn_list 2896 (insn_list 2906 (insn_list
> 2910 (insn_list 2912 (insn_list 2914 (insn_list 2930 (nil))))))))))) (nil))
> /users/opt/pbienst/egcs-19980824/gcc/toplev.c:1360: Internal compiler error
> in function fatal_insn
Thanks. I've checked in a fix for this bug.
jeff
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