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Re: PR rtl-optimization/28071 (reduce memory usage consumed by liveness)
- From: Andreas Schwab <schwab at suse dot de>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Sun, 30 Jul 2006 10:34:42 +0200
- Subject: Re: PR rtl-optimization/28071 (reduce memory usage consumed by liveness)
- References: <20060728092852.GG15855@kam.mff.cuni.cz>
Jan Hubicka <jh@suse.cz> writes:
> Hi,
> this is another low hanging 100MB fruit on bug2.c -O3 compilation. The
> liveness bitmaps are very dense and very numberous resulting in large memory
> consumption, but we throw them away for each liveness pass not freeing them
> until end of compilation of the function.
>
> :ADDPATCH middle-end:
> Bootstrapped/regtested i686-linux, OK?
This is causing bootstrap comparison failures on ia64.
Andreas.
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Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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