From: Segher Boessenkool <segher@kernel.crashing.org>
To: Richard Henderson <rth@redhat.com>
Cc: gcc-patches@gcc.gnu.org, David Edelsohn <dje.gcc@gmail.com>,
Marcus Shawcroft <marcus.shawcroft@arm.com>,
Richard Earnshaw <richard.earnshaw@arm.com>
Subject: Re: [PATCH ppc64,aarch64,alpha 00/15] Improve backend constant generation
Date: Thu, 13 Aug 2015 03:10:00 -0000 [thread overview]
Message-ID: <20150813031005.GD19357@gate.crashing.org> (raw)
In-Reply-To: <20150812083148.GE4711@gate.crashing.org>
On Wed, Aug 12, 2015 at 03:31:48AM -0500, Segher Boessenkool wrote:
> > * This is the only platform for which I bothered collecting any sort
> > of performance data:
> >
> > As best I can tell, there is a 9% improvement in bootstrap speed
> > for ppc64. That is, 10 minutes off the original 109 minute build.
>
> That is, wow. Wow :-)
Bootstrap + 4 regtests of a virgin trunk du jour took me 127m;
with your patches, 130m. So I'm not seeing that improvement (but
no regression either). This is gcc110 fwiw.
Segher
next prev parent reply other threads:[~2015-08-13 3:10 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-12 1:11 Richard Henderson
2015-08-12 1:11 ` [PATCH 01/15] rs6000: Split out rs6000_is_valid_and_mask_wide Richard Henderson
2015-08-12 13:24 ` Segher Boessenkool
2015-08-12 15:50 ` Richard Henderson
2015-08-13 2:29 ` Segher Boessenkool
2015-08-12 1:11 ` [PATCH 05/15] rs6000: Move constant via mask into build_set_const_data Richard Henderson
2015-08-12 1:12 ` [PATCH 11/15] aarch64: Use hashing infrastructure for generating constants Richard Henderson
2015-08-12 1:12 ` [PATCH 06/15] rs6000: Use rldiwi in constant construction Richard Henderson
2015-08-12 14:02 ` Segher Boessenkool
2015-08-12 15:55 ` Richard Henderson
2015-08-13 2:43 ` Segher Boessenkool
2015-08-13 19:01 ` Mike Stump
2015-08-13 20:30 ` Joseph Myers
2015-08-12 1:12 ` [PATCH 08/15] rs6000: Generalize masking in constant generation Richard Henderson
2015-08-12 1:12 ` [PATCH 03/15] rs6000: Tidy num_insns_constant vs CONST_DOUBLE Richard Henderson
2015-08-12 1:12 ` [PATCH 07/15] rs6000: Generalize left shift in constant generation Richard Henderson
2015-08-12 1:12 ` [PATCH 14/15] alpha: Split out alpha_cost_set_const Richard Henderson
2015-08-12 1:12 ` [PATCH 10/15] rs6000: Use rotldi in constant generation Richard Henderson
2015-08-12 1:12 ` [PATCH 12/15] aarch64: Test for duplicated 32-bit halves Richard Henderson
2015-08-12 1:12 ` [PATCH 15/15] alpha: Remove alpha_emit_set_long_const Richard Henderson
2015-08-12 1:12 ` [PATCH 13/15] alpha: Use hashing infrastructure for generating constants Richard Henderson
2015-08-12 1:12 ` [PATCH 02/15] rs6000: Make num_insns_constant_wide static Richard Henderson
2015-08-12 1:12 ` [PATCH 04/15] rs6000: Implement set_const_data infrastructure Richard Henderson
2015-08-12 13:53 ` Segher Boessenkool
2015-08-12 1:12 ` [PATCH 09/15] rs6000: Use xoris in constant construction Richard Henderson
2015-08-12 8:32 ` [PATCH ppc64,aarch64,alpha 00/15] Improve backend constant generation Richard Earnshaw
2015-08-12 8:43 ` Richard Earnshaw
2015-08-12 9:02 ` Richard Earnshaw
2015-08-12 15:45 ` Richard Henderson
2015-08-12 8:32 ` Segher Boessenkool
2015-08-12 15:32 ` Richard Henderson
2015-08-13 3:07 ` Segher Boessenkool
2015-08-13 5:36 ` Segher Boessenkool
2015-08-13 3:10 ` Segher Boessenkool [this message]
2015-08-13 11:32 ` David Edelsohn
[not found] <A610E03AD50BFC4D95529A36D37FA55E7B006D6780@GEORGE.Emea.Arm.com>
2015-08-12 15:59 ` Wilco Dijkstra
2015-08-12 16:09 ` Richard Henderson
2015-08-25 14:21 ` Wilco Dijkstra
2015-08-13 3:30 ` Segher Boessenkool
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150813031005.GD19357@gate.crashing.org \
--to=segher@kernel.crashing.org \
--cc=dje.gcc@gmail.com \
--cc=gcc-patches@gcc.gnu.org \
--cc=marcus.shawcroft@arm.com \
--cc=richard.earnshaw@arm.com \
--cc=rth@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).