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Re: [vta] var-tracking VTA "rewrite"
- From: Richard Guenther <richard dot guenther at gmail dot com>
- To: Alexandre Oliva <aoliva at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Fri, 29 Jan 2010 15:46:14 +0100
- Subject: Re: [vta] var-tracking VTA "rewrite"
- References: <oriqkc586j.fsf@free.oliva.athome.lsd.ic.unicamp.br> <or3abe3mb7.fsf@free.oliva.athome.lsd.ic.unicamp.br>
On Sat, May 9, 2009 at 5:57 AM, Alexandre Oliva <aoliva@redhat.com> wrote:
> On May ?8, 2009, Alexandre Oliva <aoliva@redhat.com> wrote:
>
>> during the first pass. ?This brought down compile times of insn-recog.c
>> and libjava's interpret.cc from some ten hours to some 30 minutes
>> (little more than without VTA).
>
> Thou shalt not write while half-asleep, I guess.
>
> The improvement was from 32 *thousand* seconds (slightly less than 9
> hours user time, about 10 hours wallclock time) to 42 *seconds* (user
> time).
This caused PR42896.
Richard.