From: "Marcin Kościelnicki" <koriakin@0x04.net>
To: Andreas Krebbel <krebbel@linux.vnet.ibm.com>, gcc-patches@gcc.gnu.org
Subject: Re: [PATCH 4/5] Don't mark targets of unconditional jumps with side effects as FALLTHRU.
Date: Thu, 21 Jan 2016 10:10:00 -0000 [thread overview]
Message-ID: <56A0AE84.102@0x04.net> (raw)
In-Reply-To: <56A0AD5F.8000702@linux.vnet.ibm.com>
On 21/01/16 11:05, Andreas Krebbel wrote:
> On 01/02/2016 08:16 PM, Marcin KoÅcielnicki wrote:
>> When an unconditional jump with side effects targets an immediately
>> following label, rtl_tidy_fallthru_edge is called. Since it has side
>> effects, it doesn't remove the jump, but the label is still marked
>> as fallthru. This later causes a verification error. Do nothing in this
>> case instead.
>>
>> gcc/ChangeLog:
>>
>> * cfgrtl.c (rtl_tidy_fallthru_edge): Bail for unconditional jumps
>> with side effects.
>
> The change looks ok to me (although I'm not able to approve it). Could you please run regressions
> tests on x86_64 with that change?
>
> Perhaps a short comment in the code would be good.
>
> -Andreas-
>
OK, I'll run the testsuite and add a comment.
next prev parent reply other threads:[~2016-01-21 10:10 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-02 19:16 [RFC] [PR 68191] s390: Add -fsplit-stack support Marcin Kościelnicki
2016-01-02 19:16 ` [PATCH 2/5] s390: Fix missing .size directives Marcin Kościelnicki
2016-01-20 13:16 ` Andreas Krebbel
2016-01-20 14:01 ` Dominik Vogt
2016-01-21 9:59 ` Andreas Krebbel
2016-01-21 10:10 ` Marcin Kościelnicki
2016-01-02 19:16 ` [PATCH 3/5] Fix NOTE_INSN_PROLOGUE_END after unconditional jump Marcin Kościelnicki
2016-04-17 21:25 ` Jeff Law
2016-01-02 19:16 ` [PATCH 4/5] Don't mark targets of unconditional jumps with side effects as FALLTHRU Marcin Kościelnicki
2016-01-21 10:05 ` Andreas Krebbel
2016-01-21 10:10 ` Marcin Kościelnicki [this message]
2016-01-21 23:10 ` Jeff Law
2016-01-22 7:44 ` Andreas Krebbel
2016-01-22 16:39 ` Marcin Kościelnicki
2016-01-27 7:11 ` Jeff Law
2016-04-17 21:24 ` Jeff Law
2016-01-02 19:17 ` [PATCH 5/5] s390: Add -fsplit-stack support Marcin Kościelnicki
2016-01-15 18:39 ` Andreas Krebbel
2016-01-15 21:08 ` Marcin Kościelnicki
2016-01-21 10:12 ` Andreas Krebbel
2016-01-21 13:04 ` Marcin Kościelnicki
2016-01-16 13:46 ` [PATCH] " Marcin Kościelnicki
2016-01-29 13:33 ` Andreas Krebbel
2016-01-29 15:43 ` Marcin Kościelnicki
2016-01-29 16:17 ` Andreas Krebbel
2016-02-02 14:52 ` Marcin Kościelnicki
2016-02-02 15:19 ` Andreas Krebbel
2016-02-02 15:31 ` Marcin Kościelnicki
2016-02-02 18:34 ` Ulrich Weigand
2016-02-02 20:11 ` Marcin Kościelnicki
2016-02-03 18:40 ` Marcin Kościelnicki
2016-02-04 15:06 ` Ulrich Weigand
2016-02-04 15:20 ` Marcin Kościelnicki
2016-02-04 16:27 ` Ulrich Weigand
2016-02-05 21:13 ` Marcin Kościelnicki
2016-02-05 22:02 ` Ulrich Weigand
2016-02-03 0:20 ` Marcin Kościelnicki
2016-02-03 17:03 ` Ulrich Weigand
2016-02-03 17:18 ` Marcin Kościelnicki
2016-02-03 17:27 ` Ulrich Weigand
2016-02-04 12:44 ` Marcin Kościelnicki
2016-02-10 13:14 ` Marcin Kościelnicki
2016-02-14 16:01 ` Marcin Kościelnicki
2016-02-15 10:21 ` Andreas Krebbel
2016-02-15 10:44 ` Marcin Kościelnicki
2016-02-07 12:22 ` [PATCH] testsuite/s390: Add __morestack test Marcin Kościelnicki
2016-02-19 10:21 ` Andreas Krebbel
2016-01-02 19:17 ` [PATCH 1/5] s390: Use proper read-only data section for literals Marcin Kościelnicki
2016-01-20 13:11 ` Andreas Krebbel
2016-01-21 6:56 ` Marcin Kościelnicki
2016-01-21 8:17 ` Mike Stump
2016-01-21 9:46 ` Andreas Krebbel
2016-01-03 3:21 ` [RFC] [PR 68191] s390: Add -fsplit-stack support Ian Lance Taylor
2016-01-03 10:32 ` Marcin Kościelnicki
2016-01-04 7:35 ` Marcin Kościelnicki
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