Replace xlc __fetch_and_add() with inline asm. PostgreSQL has been unusable when built with xlc 13 and newer, which are incompatible with our use of __fetch_and_add(). Back-patch to 9.5, which introduced pg_atomic_fetch_add_u32().
Reviewed by Tom Lane. Discussion: https://postgr.es/m/20190831071157.ga3251...@rfd.leadboat.com Branch ------ REL_12_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/1c6b62a7d0e57bf9ac7a91d47484b1ea9f2857cd Modified Files -------------- src/include/port/atomics/generic-xlc.h | 39 ++++++++++++++++++++++++++++++---- 1 file changed, 35 insertions(+), 4 deletions(-)