Marina Polyakova <m.polyak...@postgrespro.ru> writes:
> investigating the regression diffs, we found out that the error occurs
> when we pass int128 as not the first argument to the function (perhaps
> its value is replaced by the value of some address):
> ...
> Based on this, we modified the test program (see attached). Here is its
> output on Solaris 10 for different alignments requirements for int128
> (on my machine where make check-world passes everything is OK)
> (ALIGNOF_PG_INT128_TYPE is 16 on Solaris 10):
Excellent. This fails the same way on gcc 5.2.0 and 5.5.0?
> Maybe some pass test from int128test2.c can be used to test __int128?
Yeah, I can work with this. What I propose to do is use a somewhat
stripped-down version of this test as an AC_RUN_IFELSE test normally,
but if cross-compiling, fall back to just seeing if we can link.
Thanks for investigating!
regards, tom lane
