Andres Freund <and...@anarazel.de> writes: > On 2016-03-29 13:24:40 -0400, Tom Lane wrote: >> AFAICS, lwarx/stwcx are specifically *word* wide.
> There's actually lbarx/stbcx - but it's not present in all ISAs. So I > guess it's clear where to go. Hm. We could certainly add a configure test to see if the local assembler knows these instructions --- but it's not clear that we should depend on compile-time environment to match run-time. Googling suggests that these instructions came in with PPC ISA 2.06 which seems to date to 2010. So there's undoubtedly still production hardware without them. In the department of not-production hardware, I checked this on prairiedog and got /var/tmp/ccbQy9uG.s:1722:Invalid mnemonic 'lbarx' /var/tmp/ccbQy9uG.s:1726:Invalid mnemonic 'stbcx.' regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers