Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.96)
	(envelope-from <pgsql-hackers-owner+archive@lists.postgresql.org>)
	id 1w89dr-000GBG-2J
	for pgsql-hackers@arkaria.postgresql.org;
	Thu, 02 Apr 2026 04:26:52 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.96)
	(envelope-from <pgsql-hackers-owner+archive@lists.postgresql.org>)
	id 1w89dq-003wLP-1R
	for pgsql-hackers@arkaria.postgresql.org;
	Thu, 02 Apr 2026 04:26:50 +0000
Received: from makus.postgresql.org ([2001:4800:3e1:1::229])
	by malur.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.96)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1w89dq-003wLG-0W
	for pgsql-hackers@lists.postgresql.org;
	Thu, 02 Apr 2026 04:26:50 +0000
Received: from sss.pgh.pa.us ([68.162.161.243])
	by makus.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.98.2)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1w89do-000000007ny-3LDg
	for pgsql-hackers@lists.postgresql.org;
	Thu, 02 Apr 2026 04:26:49 +0000
Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1])
	by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 6324QgEh3191453;
	Thu, 2 Apr 2026 00:26:42 -0400
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
cc: =?UTF-8?B?RGV2cmltIEfDvG5kw7x6?= <devrim@gunduz.org>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>,
        Matheus Alcantara <matheusssilv97@gmail.com>,
        Anthonin Bonnefoy <anthonin.bonnefoy@datadoghq.com>
Subject: Re: LLVM 22
In-reply-to: 
 <CA+hUKGJ-ktfvRTHeX=DfnS41JjCqPQanOcdY8nhzT0qb5noNzw@mail.gmail.com>
References: 
 <CA+hUKGJTumad75o8Zao-LFseEbt=enbUFCM7LZVV=c8yg2i7dg@mail.gmail.com>
 <CA+hUKGJv+QUOy8yOHe_0VfRGTSrHaCvo0xZG-1JGTqBurcPkOw@mail.gmail.com>
 <CA+hUKGLJ63fpt_u0OXDR91fbpicDXK01fivzDSBMOtPazEanFQ@mail.gmail.com>
 <afa3914d40d592fc57f50da0d1e99d91f5c8b7dc.camel@gunduz.org>
 <2805479.1775001311@sss.pgh.pa.us>
 <CA+hUKGL1LfD7BTACTx=E78gq_jiFU727osd6tHCnbERrqY8DOA@mail.gmail.com>
 <CA+hUKGJFVyQA8QOjB3BSuq9N1VbTvMPzsFG93p=4TmLR8R58zA@mail.gmail.com>
 <3184815.1775100697@sss.pgh.pa.us>
 <CA+hUKGJ-ktfvRTHeX=DfnS41JjCqPQanOcdY8nhzT0qb5noNzw@mail.gmail.com>
Comments: In-reply-to Thomas Munro <thomas.munro@gmail.com>
	message dated "Thu, 02 Apr 2026 17:16:14 +1300"
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-ID: <3191451.1775104002.1@sss.pgh.pa.us>
Content-Transfer-Encoding: 8bit
Date: Thu, 02 Apr 2026 00:26:42 -0400
Message-ID: <3191452.1775104002@sss.pgh.pa.us>
List-Id: <pgsql-hackers.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-hackers@lists.postgresql.org>
List-Owner: <mailto:pgsql-hackers-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-hackers>
Archived-At: 
 <https://www.postgresql.org/message-id/3191452.1775104002%40sss.pgh.pa.us>
Precedence: bulk

Thomas Munro <thomas.munro@gmail.com> writes:
> On Thu, Apr 2, 2026 at 4:31 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Just out of curiosity: I see you back-patched that all the way,
>> but midge had only been failing on v18 and HEAD.  Were you just
>> being defensive, or is there something deeper there?

> It was failing locally for me on all branches.

Ah, thanks for that detail.

> I don't know why midge wasn't failing on 14-17.  Could jit be disabled
> somewhere secret?  Aarch64 vs amd64, but this issue doesn't seem to be
> architecture related, it's IR-level.

Definitely not arch-specific, because I reproduced it on x86_64.
midge's lack of failure is odd then, but I'm not sure it's worth
expending a lot of brain cells on.

			regards, tom lane