Hi, 0001 looks good to me.
There's a leftover itanium reference in a comment in src/include/port/atomics/generic-msvc.h There's also a bunch of #ifdef __ia64__ in src/backend/utils/misc/guc-file.c, contrib/seg/segscan.c and contrib/cube/cubescan.c Otherwise lgtm as well. Greetings, Andres Freund
