https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114742
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |bergner at gcc dot gnu.org,
| |meissner at gcc dot gnu.org,
| |segher at gcc dot gnu.org
--- Comment #3 from Peter Bergner <bergner at gcc dot gnu.org> ---
Adding Mike and Segher to correct me if I'm wrong on anything... :-)
The canonical method for determining whether a specific cpu has VSX enabled or
not is checking for "#if defined(_ARCH_PWR*) && defined(__VSX__)". I believe
we're trying to move away from testing things like "__POWER8_VECTOR__".
I seem to be blanking on the minimum cpu required for __ieee128, so I'll let
Mike or Segher comment on that. I thought is was Power7, which would mean
using _ARCH_PWR7 above, but given -mcpu=power7 still fails, maybe Power8 is the
minimum needed for __ieee128 support? Mike and Segher???
