On 03.07.14 13:34, Steve McIntyre wrote:
On Thu, Jul 03, 2014 at 01:20:14PM +0200, Alexander Graf wrote:
On 02.07.14 14:46, Steve McIntyre wrote:
Ummm...
Didn't all the distros agree on VFP3-D16 (i.e. hard-float, non-NEON)
as the baseline for cross-distro compatibility for the ARM hard-float
ports?
The idea behind the cross-distro compatibility was to standardize on
the ABI and ABI requirements. IIUC these are identical whether you
use NEON instructions or not.
The fact that code may be compiled with NEON optimizations enabled is
thus not an issue of cross-distro compatibility :). It only narrows
down the set of hardware that we can run on.
Ah, yes. :-) True, so long as you don't end up with (badly-written?)
functions passing so many arguments that they overflow into using the
extra NEON VFP registers. Unlikely, I hope!
In between library / application boundaries? Very unlikely hopefully :).
Alex
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