[vlc-devel] commit: Add a CPU capability for ARM NEON ( Rémi Denis-Courmont )

[Rémi Denis-Courmont]

Le dimanche 6 septembre 2009 22:41:35 Måns Rullgård, vous avez écrit :
> That is much less evil.  However, it will not detect correctly if the
> OS traps and emulates the missing instructions, as is often the case
> for floating-point but perhaps not for the kind of things VLC cares
> about.

Namely this commit was about detecting NEON ISA support. I am mostly concerned 
about Maemo 5, where NEON support can be assumed. However, someone else (e.g. 
Debian/armelu) may want to build a generic VLC for ARMv4 and up. Then NEON 
cannot be used unless GCC accepts NEON assembly with a non-NEON -march 
setting.

I doubt that any OS would emulate NEON support.

-- 
Rémi Denis-Courmont
http://www.remlab.net/