Re: -freduce-all-givs and fortran

[Daniel Berlin <dan at cgsoftware dot com>]

Andreas Jaeger <aj@suse.de> writes:

> Andreas Jaeger <aj@suse.de> writes:
>
>> Richard Henderson <rth@redhat.com> writes:
>>
>>> On Thu, Sep 06, 2001 at 10:28:08PM +0200, Toon Moene wrote:
>>> > Somehow, the giv-combine code doesn't examine the base addresses of
>>>> these arrays [quoting swim.f.11.loop]:
>>> [...]
>>> > Giv 80: insn 40 src reg 69 benefit 4 lifetime 8 replaceable
>>>>  mult (4)
>>>>  add  (const (plus (symbol_ref ("com_")) (-4)))
>>>> Giv 88: insn 51 src reg 69 benefit 4 lifetime 3 replaceable
>>>>  mult (4)
>>>>  add  (const (plus (symbol_ref ("com_")) (396)))
>>>
>>> Whee.
>>
>> Are you sure that your patch is correct?  I just added it (from the
>> mail) and now I see cc1 eating all my memory + swap (2 GB in total).
>> Richard, can you please double check this?
>
> Here's the formal bug report ;-)
>
> Richard, I get repeatly an OOM situation (the kernel kills cc1) with
> your patch applied on i686-linux:
>
> stage1/xgcc -Bstage1/ -B/opt/gcc-3.1-devel-rth/i686-pc-linux-gnu/bin/ -c  -DIN_GCC  
>   -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditi
> onal -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I/private/gcc-rth/gcc -I/
> private/gcc-rth/gcc/. -I/private/gcc-rth/gcc/config -I/private/gcc-rth/gcc/../includ
> e /private/gcc-rth/gcc/dwarfout.c -o dwarfout.o
> xgcc: Internal error: Killed (program cc1)
> Please submit a full bug report.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>
> I run configure as:
> /private/gcc-rth/configure --host=i686-pc-linux-gnu
> --prefix=/opt/gcc-3.1-devel-rth --enable-threads=posix --disable-nls
> --enable-languages=c,c++,f77

What's the stack trace?


>
> Andreas
> -- 
>  Andreas Jaeger
>   SuSE Labs aj@suse.de
>    private aj@arthur.inka.de
>     http://www.suse.de/~aj

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