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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Subject: Re: shm_toc_lookup API
Date: Mon, 05 Jun 2017 15:06:06 -0400
Message-ID: <28711.1496689566@sss.pgh.pa.us> (raw)
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Andres Freund <andres@anarazel.de> writes:
> On 2017-06-05 14:57:10 -0400, Tom Lane wrote:
>> Meh.  Without volatile, I think that the compiler would be within its
>> rights to elide the nentry local variable and re-fetch toc->toc_nentry
>> each time through the loop.

> I don't think that's true.

Perhaps not, but I'm not quite convinced.  Anyway it doesn't matter,
at least not here.

			regards, tom lane


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  Cc: tgl@sss.pgh.pa.us, andres@anarazel.de, robertmhaas@gmail.com
  Subject: Re: shm_toc_lookup API
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