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From: Alexander Monakov <amonakov@ispras.ru>
To: Qing Zhao <qing.zhao@oracle.com>
Cc: gcc Patches <gcc-patches@gcc.gnu.org>, jeff Law <law@redhat.com>,
	    Richard Guenther <rguenther@suse.de>,
	Jakub Jelinek <jakub@redhat.com>,
	    andrew Pinski <pinskia@gmail.com>,
	martin Sebor <msebor@gmail.com>
Subject: Re: [PATCH][Middle-end][Version 4]Add a new option to control inlining only on static functions
Date: Wed, 26 Sep 2018 23:54:00 -0000	[thread overview]
Message-ID: <alpine.LNX.2.20.13.1809270203120.30031@monopod.intra.ispras.ru> (raw)
In-Reply-To: <BDD1F63A-DC45-4F0E-8738-7D3DFF1C24AD@oracle.com>

[-- Attachment #1: Type: text/plain, Size: 1177 bytes --]

On Wed, 26 Sep 2018, Qing Zhao wrote:
> The request is for application developers who want to use gcc's online
>    patching feature.
> 
> Today, developers can turn off inlining and deliver just the patched routine.  They
>    can also allow all inlining and deliver the patched routine and all the routines
>    that the patched routine was inlined into.
> 
> completely turning off inlining will sacrifice too much run-time performance. completely
> enable inlining, on the other hand, will have the potential issues with code size, complexity and
> debuggability for the online patching.
> 
> the proposed option provides a compromised solution for the above issues. and enable more
> developers to utilize gcc’s online patching feature.

From this explanation it sounds to me that what you really need is -Os-like
behavior for IPA passes, without enabling -Os for gimple/rtl passes, as I
mentioned in my previous email. Honza, how does that sound?

> > If the original issue is that inlining duplicates code, wouldn't it be better
> > solved by a switch that instructs inlining heuristics to inline as if for -Os,
> > without enabling -Os for other passes?

Alexander

  reply	other threads:[~2018-09-26 23:07 UTC|newest]

Thread overview: 124+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-18 18:58 [PATCH][Middle-end][Version 3]Add " Qing Zhao
2018-09-18 23:18 ` Martin Sebor
2018-09-19 15:07   ` Qing Zhao
2018-09-21 15:19     ` [PATCH][Middle-end][Version 4]Add " Qing Zhao
2018-09-26  1:01       ` PING: " Qing Zhao
2018-09-26 11:20       ` Alexander Monakov
2018-09-26 12:49         ` Paolo Carlini
2018-09-26 14:43         ` Qing Zhao
2018-09-26 15:18           ` Alexander Monakov
2018-09-26 23:07             ` Qing Zhao
2018-09-26 23:54               ` Alexander Monakov [this message]
2018-09-27  5:16                 ` Qing Zhao
2018-09-27  7:46                   ` Richard Biener
2018-09-27 16:30                     ` Qing Zhao
2018-09-27  8:55                   ` Alexander Monakov
2018-09-27  8:58                 ` Jan Hubicka
2018-09-27 11:12                   ` Richard Biener
2018-09-26 13:24       ` Jason Merrill
2018-09-26 13:31         ` Richard Biener
2018-09-26 13:40           ` Jason Merrill
2018-09-26 14:46             ` Jeff Law
2018-09-26 14:58               ` Jason Merrill
2018-09-26 15:10                 ` Jan Hubicka
2018-09-26 17:12                   ` Qing Zhao
2018-09-26 17:22                     ` Jan Hubicka
2018-09-26 21:36                       ` Qing Zhao
2018-09-27  9:47                         ` Jan Hubicka
2018-09-27 12:29                           ` GCC options for kernel live-patching (Was: Add a new option to control inlining only on static functions) Martin Jambor
2018-09-27 16:40                             ` Qing Zhao
2018-10-01 17:14                             ` Qing Zhao
2018-10-02  8:38                               ` Martin Jambor
2018-10-02 14:00                                 ` Qing Zhao
2018-10-02 14:11                                   ` Martin Liška
2018-10-02 14:55                                     ` Qing Zhao
2018-10-02 14:59                                       ` Martin Liška
2018-10-02 15:24                                         ` Qing Zhao
2018-10-02 17:16                                           ` Martin Liška
2018-10-02 18:34                                             ` Richard Biener
2018-10-02 21:25                                               ` Qing Zhao
2018-10-03  9:05                                                 ` Martin Liška
2018-10-03 10:53                                                 ` Martin Jambor
2018-10-03 16:11                                                   ` Qing Zhao
2018-10-04 13:20                                                     ` Richard Biener
2018-10-18 19:36                                                       ` [RFC] GCC support for live-patching Qing Zhao
2018-10-19  8:53                                                         ` Bernhard Reutner-Fischer
2018-10-19 18:33                                                           ` Qing Zhao
2018-10-24 21:16                                                             ` Alexandre Oliva
2018-10-19 14:25                                                         ` Andi Kleen
2018-10-19 18:33                                                           ` Qing Zhao
2018-10-20  6:47                                                             ` Andi Kleen
2018-10-22 13:07                                                         ` Martin Jambor
2018-10-22 17:59                                                           ` Qing Zhao
2018-10-22 15:36                                                         ` Miroslav Benes
2018-10-22 21:01                                                           ` Qing Zhao
2018-10-23  9:37                                                             ` Miroslav Benes
2018-10-23 19:54                                                               ` Qing Zhao
2018-10-24 13:17                                                                 ` Miroslav Benes
2018-10-23 13:37                                                             ` Nicolai Stange
2018-10-23 20:34                                                               ` Qing Zhao
2018-10-23 21:18                                                                 ` Nicolai Stange
2018-10-24 17:19                                                                 ` Qing Zhao
2018-10-31 22:04                                                         ` [RFC] [2nd version] " Qing Zhao
2018-10-31 22:08                                                         ` [RFC] " Qing Zhao
2018-10-03  9:23                                             ` GCC options for kernel live-patching (Was: Add a new option to control inlining only on static functions) Jan Hubicka
2018-10-03 11:27                                               ` Martin Liška
2018-10-22 10:49                                                 ` Martin Liška
     [not found]                                                   ` <20181105095135.j3mnzox6rkktkoto@kam.mff.cuni.cz>
2018-11-05 22:26                                                     ` Qing Zhao
2018-11-07 14:22                                                     ` Martin Liška
2018-11-07 14:27                                                       ` Jan Hubicka
2018-11-07 14:44                                                         ` Martin Liška
2018-11-08 14:59                                                       ` Jan Hubicka
2018-11-09 15:33                                                         ` [PATCH][RFC] Come up with -flive-patching master option Martin Liška
2018-11-09 17:43                                                           ` Qing Zhao
2018-11-10  8:51                                                             ` Martin Liška
2018-11-12  2:28                                                               ` Qing Zhao
2018-11-12  8:53                                                                 ` Martin Liška
2018-11-12 22:29                                                                   ` Qing Zhao
2018-11-13 17:49                                                                     ` Qing Zhao
2018-11-13 19:18                                                                       ` Miroslav Benes
2018-11-13 21:16                                                                         ` Qing Zhao
2018-11-14 15:03                                                                           ` Martin Liška
2018-11-14 17:54                                                                             ` Qing Zhao
2018-11-15  8:41                                                                               ` Martin Liška
2018-11-15 15:41                                                                                 ` Qing Zhao
2018-11-16  1:36                                                                                   ` [PATCH]Come " Qing Zhao
2018-11-16 15:26                                                                                     ` Martin Liška
2018-11-16 15:51                                                                                       ` Jan Hubicka
2018-11-16 16:25                                                                                         ` Qing Zhao
2018-11-16 16:05                                                                                       ` Qing Zhao
2018-11-19  8:12                                                                                         ` Martin Liška
     [not found]                                                                                           ` <F78B52B9-9F9A-4FA0-91BF-A33307D87AA8@oracle.c! ! om>
2018-11-19 15:53                                                                                           ` Qing Zhao
2018-11-20 12:10                                                                                             ` Martin Liška
2018-11-20 15:32                                                                                               ` [PATCH][Version 3]Come " Qing Zhao
2018-11-26 15:54                                                                                                 ` PING: " Qing Zhao
2018-11-30 17:04                                                                                                   ` [wwwdocs] [PATCH]introduce new -flive-patching master option into gcc9 Qing Zhao
2018-11-30 18:29                                                                                                     ` Jeff Law
2018-11-30 20:44                                                                                                       ` Qing Zhao
2018-11-28 15:52                                                                                                 ` [PATCH][Version 3]Come up with -flive-patching master option Jan Hubicka
2018-11-28 20:25                                                                                                   ` Qing Zhao
2018-11-29 16:16                                                                                                     ` Qing Zhao
2018-12-05 23:16                                                                                                     ` Question on Disable no throw for " Qing Zhao
2019-01-02 11:47                                                                                                       ` Martin Liška
2019-01-09 11:28                                                                                                         ` Martin Liška
2018-12-07 13:07                                                                                                     ` [PATCH][Version 3]Come up with " Rainer Orth
2018-12-07 15:14                                                                                                       ` Qing Zhao
2019-04-10 14:46                                                                                                 ` Jonathan Wakely
2019-04-10 19:24                                                                                                   ` Qing Zhao
2019-04-10 20:01                                                                                                     ` Jonathan Wakely
2019-04-11  8:11                                                                                                       ` Richard Biener
2018-11-14 22:05                                                                           ` [PATCH][RFC] Come " Miroslav Benes
     [not found]                                                               ` <20181110170343.g3k7j7rlydid3ahr@kam.mff.cuni.cz>
2018-11-12  9:29                                                                 ` Martin Liška
2018-11-09 18:38                                                           ` Bernhard Reutner-Fischer
2018-11-10  8:48                                                           ` Martin Liška
2018-10-03 12:18                                               ` GCC options for kernel live-patching (Was: Add a new option to control inlining only on static functions) Martin Jambor
2018-10-03 16:00                                               ` Qing Zhao
2018-10-23 12:34                             ` Performance impact of disabling non-clone IPA optimizations for the Linux kernel (was: "GCC options for kernel live-patching") Nicolai Stange
2018-10-24 14:30                               ` Jiri Kosina
2018-10-24 14:44                                 ` Miroslav Benes
2018-09-27 16:32                           ` [PATCH][Middle-end][Version 4]Add a new option to control inlining only on static functions Qing Zhao
2018-09-26 22:42                       ` Qing Zhao
2018-09-26 16:02               ` Qing Zhao
2018-09-26 15:52           ` Qing Zhao
2018-09-26 16:02             ` Jan Hubicka
2018-09-26 18:51               ` Qing Zhao

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