[ adding Bjorn Munch to Cc ] 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 | regards, Andreas Footnotes: [1] http://www.postgresql.org/download/solaris/ -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
