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.GA3251746@rfd.leadboat.com
Branch
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REL9_5_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/75941f257aacbc68b08e1cbf2e55110d00a06fff
Modified Files
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src/include/port/atomics/generic-xlc.h | 39 ++++++++++++++++++++++++++++++----
1 file changed, 35 insertions(+), 4 deletions(-)