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From: Jeff Law <law@redhat.com>
To: Kyrylo Tkachov <Kyrylo.Tkachov@arm.com>,
	Jakub Jelinek <jakub@redhat.com>,
	 Richard Earnshaw <Richard.Earnshaw@foss.arm.com>,
	"gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] arm: Fix up arm_override_options_after_change_1
Date: Thu, 10 Sep 2020 08:58:54 -0600	[thread overview]
Message-ID: <3b5e043965bdf9344b6f521ac710ff438d7c1b66.camel@redhat.com> (raw)
In-Reply-To: <DB7PR08MB3002CCFCEAF67EA360E329CC93270@DB7PR08MB3002.eurprd08.prod.outlook.com>

On Thu, 2020-09-10 at 14:11 +0000, Kyrylo Tkachov wrote:
> Hi Jakub,
> 
> > -----Original Message-----
> > From: Jakub Jelinek <jakub@redhat.com>
> > Sent: 10 September 2020 09:51
> > To: Richard Earnshaw <Richard.Earnshaw@foss.arm.com>; Kyrylo Tkachov
> > <Kyrylo.Tkachov@arm.com>; gcc-patches@gcc.gnu.org
> > Subject: [PATCH] arm: Fix up arm_override_options_after_change_1
> > 
> > On Tue, Sep 08, 2020 at 10:45:12AM +0200, Jakub Jelinek via Gcc-patches
> > wrote:
> > > Looking further at arm_override_options_after_change_1, it also seems to
> > be
> > > incorrect, rather than testing
> > > !opts->x_str_align_functions
> > > it should be really testing
> > > !opts_set->x_str_align_functions
> > > and get &global_options_set or similar passed to it as additional opts_set
> > > argument.  That is because otherwise the decision will be sticky, while it
> > > should be done whenever use provided -falign-functions but didn't provide
> > > -falign-functions= (either on the command line, or through optimize
> > > attribute or pragma).
> > 
> > Here is a fix for that (incremental change on top of the previous patch).
> > Bootstrapped/regtested on armv7hl-linux-gnueabi, ok for trunk?
> 
> This looks ok to me.
> Please commit to master so we can get some wider testing before backporting.
FWIW, I've done about a dozen package builds in Fedora with this patch to verify
it fixes the neon vs lto issues.  It's far from wide testing though ;-)  I've
asked Jakub to include it in the next GCC build he does for Fedora so that we can
remove those LTO opt-outs.

jeff
> 


  reply	other threads:[~2020-09-10 14:58 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-08  8:45 [PATCH] arm: Fix up arm_override_options_after_change [PR96939] Jakub Jelinek
2020-09-08 22:01 ` Jeff Law
2020-09-10  8:51 ` [PATCH] arm: Fix up arm_override_options_after_change_1 Jakub Jelinek
2020-09-10 14:11   ` Kyrylo Tkachov
2020-09-10 14:58     ` Jeff Law [this message]
2020-09-10 15:01     ` Jakub Jelinek
2020-09-10 15:04       ` Kyrylo Tkachov
2020-09-11  7:46 ` [PATCH] arm: Fix up arm_override_options_after_change [PR96939] Christophe Lyon
2020-09-11  9:29   ` Jakub Jelinek
2020-09-13  8:29     ` [PATCH] options: Save and restore opts_set for Optimization and Target options Jakub Jelinek
2020-09-14  6:32       ` Richard Biener
2020-09-14  8:06         ` Christophe Lyon
2020-09-28 19:50       ` Stefan Schulze Frielinghaus
2020-09-28 19:58         ` Jakub Jelinek
2020-09-30  9:32         ` Jakub Jelinek
2020-09-30 11:21           ` Stefan Schulze Frielinghaus
2020-09-30 11:39             ` Jakub Jelinek
2020-09-30 13:24               ` Stefan Schulze Frielinghaus
2020-10-02  8:46                 ` Jakub Jelinek
2020-10-02 14:21                   ` Stefan Schulze Frielinghaus
2020-10-03  8:41                     ` Jakub Jelinek
2020-10-03 18:02                       ` Richard Biener
2020-10-04  7:13                   ` Andreas Schwab
2020-10-04 19:16                     ` Jakub Jelinek
2020-10-05  7:08                       ` Jakub Jelinek
2020-10-05  7:10                         ` Richard Biener
2020-10-06  9:28                       ` Andreas Schwab
2020-10-06 13:20                         ` [PATCH] options: Avoid unused variable mask warning [PR97305] Jakub Jelinek
2020-10-06 13:32                           ` Richard Biener

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