Re: Use of C99 extra long double math functions after r236148

On Jul 14, 2012, at 3:24 AM, David Chisnall wrote:

> On 13 Jul 2012, at 17:40, Warner Losh wrote:
>=20
>> We shouldn't be gating the new math on an issue that only affects =
sparc64 machines
>=20
> Mostly agreed, but it's worth noting that the APCS for ARMv8[1] =
specifies that long double should be  IEEE 754- 2008 quad precision.  I =
think ARMv8 is going to be an important platform for us in the next few =
years, so ld128 is not just for SPARC (I'd also like us to switch to =
ld128 on PowerPC, since that's the ABI that everyone else uses, but I =
don't anticipate PowerPC becoming tier 1 any time soon, whereas I would =
very much like to see ARMv8 become tier 1 within a year of shipping =
silicon).
>=20
> That's not to say that we should hold things up waiting for ld128 =
versions, just that adding ld128 versions soon after adding ld80 ones =
would be very helpful.

Agreed.  My point was more "don't gate everything on the 128-bit =
versions" not "hey, nobody do this, it is stupid."  If the 128-bit =
versions are ready at the same time as the 80-bit versions, so much the =
better.

Warner

> David
>=20
> [1] =
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055a/IHI0055A_aapcs64=
..pdf

_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"