On 25/09 09.37, Andreas Seltenreich wrote: > [ adding Bjorn Munch to Cc ]
Oh. I am on the -hackers list but usually just scan for any subject mentioning Solaris and this one did not. :-) > Jim Nasby writes: > > On 9/20/15 9:23 AM, Christoph Berg wrote: > >> a short update here: the customer updated the compiler to a newer > >> version, is now compiling using -O2 instead of -O3, and the code > >> generated now looks sane, so this turned out to be a compiler issue. > >> (Though it's unclear if the upgrade fixed it, or the different -O > >> level.) > > > > Do we officially not support anything > -O2? If so it'd be nice if > > configure threw at least a warning (if not an error that you had to > > explicitly over-ride). > > At least the solaris binaries distributed via postgresql.org[1] have > been compiled with -xO3 according to pg_config. And their code for > multixact.c looks inconspicuous. To recap the data points: > > | compiler | flags | multixact.o | > |---------------------------------------------------+-------+-------------| > | Sun C 5.12 SunOS_sparc Patch 148917-07 2013/10/18 | -xO3 | bad | > | Sun C 5.13 SunOS_Sparc 2014/10/20 | -xO2 | good | > | Sun C 5.8 Patch 121015-04 2007/01/10 | -xO3 | good | All the binaries I have compiled for distribution via postgresql.org have been built with Sun Studio 11, aka Sun C 5.8 as listed on the bottom here. Except the 9.5 Alpha where I finally had to upgrade to version 12.1 (aka Sun C 5.10). I am also pretty sure they have always been compiled with -O3. At least that's what the build script is set to and I don't think that has even been changed. - Bjorn Munch -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
