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Re: GCC trunk SPEC2000 performance
Jan Hubicka <jh@suse.cz> writes:
>> Yes, that seems to be the same failure:
>> /usr/src/SpecTests/d-permanent/i686/install-200206200731/bin/g77 -c -o apsi.o -O3 -fomit-frame-pointer -march=athlon -funroll-all-loops -fstrict-aliasing -malign-double -fprefetch-loop-arrays apsi.f
>> apsi.f: In subroutine `uvset':
>> apsi.f:4327: internal compiler error: RTL flag check: REG_POINTER used with unexpected rtx code `mem' in copy_rtx_and_substitute, at integrate.c:2065
>> Please submit a full bug report,
>> with preprocessed source if appropriate.
>> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>> specmake: *** [apsi.o] Error 1
> Hmm, obvious fix appears to be the patch attached. I am not at all sure
> whether it is the sane fix, as I don't understand the difference between
> first and second operand of addressof (need for the second operand).
> I also can't test whether it works, as I don't have SPEC sources here.
I've done a complete bootstrap and regtest on i686-linux-gnu with no
regressions and used the resulting compiler to compile apsi.f which
was successfull.
So, is this the right solution or does it just work by chance?
Andreas
>
> Index: integrate.c
> ===================================================================
> RCS file: /cvs/gcc/egcs/gcc/integrate.c,v
> retrieving revision 1.197
> diff -c -3 -p -r1.197 integrate.c
> *** integrate.c 11 Jun 2002 12:21:46 -0000 1.197
> --- integrate.c 20 Jun 2002 15:16:19 -0000
> *************** copy_rtx_and_substitute (orig, map, for_
> *** 2062,2068 ****
> RTX_UNCHANGING_P (map->reg_map[regno]) = RTX_UNCHANGING_P (temp);
> /* A reg with REG_FUNCTION_VALUE_P true will never reach here. */
>
> ! if (REG_POINTER (map->x_regno_reg_rtx[regno]))
> mark_reg_pointer (map->reg_map[regno],
> map->regno_pointer_align[regno]);
> regno = REGNO (map->reg_map[regno]);
> --- 2062,2069 ----
> RTX_UNCHANGING_P (map->reg_map[regno]) = RTX_UNCHANGING_P (temp);
> /* A reg with REG_FUNCTION_VALUE_P true will never reach here. */
>
> ! if (REG_P (map->x_regno_reg_rtx[regno])
> ! && REG_POINTER (map->x_regno_reg_rtx[regno]))
> mark_reg_pointer (map->reg_map[regno],
> map->regno_pointer_align[regno]);
> regno = REGNO (map->reg_map[regno]);
>
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj