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Re: [PATCH] Fix ldbl-128ibm fma (Inf, Inf, finite) (bug 23272)
Florian Weimer <fweimer@redhat.com> writes:
> * Joseph Myers:
>> That answers the first question about the symptoms (both spurious
>> overflow exceptions and bad results, apparently coming from __gcc_qadd
>> mishandling certain cases involving infinities), but doesn't answer
>> the second question about what happens when the infinite x * y comes
>> from (Inf * finite) (I'd guess the same problem, in which case the
>> proposed patch needs fixing further, but it looks like tests for that
>> case also need adding to libm-test-fma.inc).
>
> Thanks. I have to admit this is a bit over my head.
>
> Tulio, can you take care of this, or should someone else pick this up?
Yes, it's in my task list.
I still have to confirm Joseph's points and will get back to you.
I still need more time, though.
--
Tulio Magno