From: Jonathan Wakely <jwakely@redhat.com>
To: "François Dumont" <frs.dumont@gmail.com>
Cc: "libstdc++@gcc.gnu.org" <libstdc++@gcc.gnu.org>,
gcc-patches <gcc-patches@gcc.gnu.org>
Subject: Re: Hashtable Small size optimization
Date: Mon, 03 Jun 2019 22:25:00 -0000 [thread overview]
Message-ID: <20190603222457.GI2599@redhat.com> (raw)
In-Reply-To: <1bf8bedd-bcc6-a181-0d0e-de4eb534b450@gmail.com>
On 03/06/19 19:18 +0200, François Dumont wrote:
>Sorry for the mis-understanding but the core of this patch has already
>been committed after your approval here:
>
>https://gcc.gnu.org/ml/libstdc++/2019-05/msg00023.html
OK, thanks. I didn't realise it superseded this one. I thought there
might still be bits of this that would help. But looking at it again,
I see either the code touched by this patch has changed anyway, or
your patch a month ago made equivalent changes.
>It was considered as PR 90277 fix but eventually I also change tests
>to make those implementation-details agnostics.
>
>However the performance test didn't make it, I'll re-submit it in
>another patch more dedicated to small size optimization.
OK, that would be useful. Thanks.
It might still be useful to know more about why -O3 helps so much, but
that might require one of the middle end experts to analyze it.
Thanks!
prev parent reply other threads:[~2019-06-03 22:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-15 22:17 François Dumont
2019-05-31 11:56 ` Jonathan Wakely
2019-06-03 17:18 ` François Dumont
2019-06-03 22:25 ` Jonathan Wakely [this message]
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