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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/98856] [11 Regression] botan AES-128/XTS is slower by ~17% since r11-6649-g285fa338b06b804e72997c4d876ecf08a9c083af
Date: Fri, 05 Mar 2021 12:55:28 +0000 [thread overview]
Message-ID: <bug-98856-4-3hm8RDQ0dO@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98856-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98856
--- Comment #32 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 5 Mar 2021, ubizjak at gmail dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98856
>
> --- Comment #31 from Uroš Bizjak <ubizjak at gmail dot com> ---
> (In reply to Richard Biener from comment #29)
> > The simplified variant below works but IMHO matches cases we do not
> > want to transform. I can't find any example on how to achieve that
> > though.
>
> I think that pinsrd should be transformed to punpcklqdq irrespective of its
> first input operand. The insn scheduler should move insns around to mask their
> latencies.
>
> > ;; Further split pinsrq variants of vec_concatv2di with two GPR sources,
> > ;; one already reloaded, to hide the latency of one GPR->XMM transitions.
> > (define_peephole2
> > [(match_scratch:DI 3 "Yv")
> > (set (match_operand:V2DI 0 "sse_reg_operand")
> > (vec_concat:V2DI (match_operand:DI 1 "sse_reg_operand")
> > (match_operand:DI 2 "nonimmediate_gr_operand")))]
> > "reload_completed && optimize_insn_for_speed_p ()"
>
> Please use
>
> "TARGET_64BIT && TARGET_SSE4_1
> && !optimize_insn_for_size_p ()"
>
> here.
what about reload_completed? We really only want to do this after RA.
Will test the patch then and add the reduced testcase.
next prev parent reply other threads:[~2021-03-05 12:55 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-27 14:28 [Bug tree-optimization/98856] New: " marxin at gcc dot gnu.org
2021-01-27 14:29 ` [Bug tree-optimization/98856] " marxin at gcc dot gnu.org
2021-01-27 14:44 ` rguenth at gcc dot gnu.org
2021-01-28 7:47 ` rguenth at gcc dot gnu.org
2021-01-28 8:44 ` marxin at gcc dot gnu.org
2021-01-28 9:40 ` rguenth at gcc dot gnu.org
2021-01-28 11:03 ` rguenth at gcc dot gnu.org
2021-01-28 11:19 ` rguenth at gcc dot gnu.org
2021-01-28 11:57 ` rguenth at gcc dot gnu.org
2021-02-05 10:18 ` rguenth at gcc dot gnu.org
2021-02-05 11:52 ` jakub at gcc dot gnu.org
2021-02-05 12:52 ` rguenth at gcc dot gnu.org
2021-02-05 13:43 ` jakub at gcc dot gnu.org
2021-02-05 14:36 ` jakub at gcc dot gnu.org
2021-02-05 16:29 ` jakub at gcc dot gnu.org
2021-02-05 17:55 ` jakub at gcc dot gnu.org
2021-02-05 19:48 ` jakub at gcc dot gnu.org
2021-02-08 15:14 ` jakub at gcc dot gnu.org
2021-03-04 12:14 ` rguenth at gcc dot gnu.org
2021-03-04 15:36 ` rguenth at gcc dot gnu.org
2021-03-04 16:12 ` rguenth at gcc dot gnu.org
2021-03-04 17:56 ` ubizjak at gmail dot com
2021-03-04 18:12 ` ubizjak at gmail dot com
2021-03-05 7:44 ` rguenth at gcc dot gnu.org
2021-03-05 7:46 ` rguenth at gcc dot gnu.org
2021-03-05 8:29 ` ubizjak at gmail dot com
2021-03-05 10:04 ` rguenther at suse dot de
2021-03-05 10:43 ` rguenth at gcc dot gnu.org
2021-03-05 11:56 ` ubizjak at gmail dot com
2021-03-05 12:25 ` ubizjak at gmail dot com
2021-03-05 12:27 ` rguenth at gcc dot gnu.org
2021-03-05 12:49 ` jakub at gcc dot gnu.org
2021-03-05 12:52 ` ubizjak at gmail dot com
2021-03-05 12:55 ` rguenther at suse dot de [this message]
2021-03-05 13:06 ` rguenth at gcc dot gnu.org
2021-03-05 13:08 ` ubizjak at gmail dot com
2021-03-05 14:35 ` rguenth at gcc dot gnu.org
2021-03-08 10:41 ` rguenth at gcc dot gnu.org
2021-03-08 13:20 ` rguenth at gcc dot gnu.org
2021-03-08 15:46 ` amonakov at gcc dot gnu.org
2021-04-27 11:40 ` [Bug tree-optimization/98856] [11/12 " jakub at gcc dot gnu.org
2021-05-13 10:17 ` cvs-commit at gcc dot gnu.org
2021-07-28 7:05 ` rguenth at gcc dot gnu.org
2022-01-21 13:20 ` rguenth at gcc dot gnu.org
2022-04-21 7:48 ` rguenth at gcc dot gnu.org
2023-04-17 21:43 ` [Bug tree-optimization/98856] [11/12/13/14 " lukebenes at hotmail dot com
2023-04-18 9:07 ` rguenth at gcc dot gnu.org
2023-05-29 10:04 ` jakub at gcc dot gnu.org
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