> I agree it would be preferable to make a centralized check work.
Here is my first stab at it. v9 is same as v8 + a commit to move all cpuid checks into one single place including the
AVX512popcount code. Any new feature that requires CPUID information can access that information with
pg_cpu_have[FEATURE]defined in pg_cpucap.h and initialized in pg_cpucap.c. v8 also had a typo in configure files which
causeda build failure. Its fixed in v9.
Pretty sure the ARM code paths need some correction. Let me know what you think.
> Correct me if I'm misunderstanding, but this sounds like in every frontend
> program we'd need to know what the first call was, which seems less
> maintainable than just initializing at the start of every frontend program.
No, sorry for the confusion but that is not what I meant. Lets ignore the attribute constructor for now. We can
probablyrevisit this at a later point.
Raghuveer
