| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Vik Fearing <vik(at)postgresfriends(dot)org>, cary huang <hcary328(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Add support for AT LOCAL |
| Date: | 2023-10-16 03:07:20 |
| Message-ID: | CA+hUKGJSEOVonGsYCiuhZXsBFCxXtjNyHGYvn-w9jykGo2PgqQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Oct 16, 2023 at 4:02 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> I'm having a hard time not believing that this is a compiler bug.
> Looking back at 8d2a01ae12cd and its speculation that xlc is overly
> liberal about reordering code around sequence points ... I wonder
> if it'd help to do this calculation in a local variable, and only
> assign the final value to result->time ? But we have to reproduce
> the problem first.
If that can be shown I would vote for switching to /opt/IBM/xlc/16.1.0
and not changing a single bit of PostgreSQL.
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