[oe] [PATCH/RFC] qt4-embedded: tune QT_ARCH for armv6

[Holger Freyther]

On 11/04/2010 10:52 AM, Eric Bénard wrote:
> this is a RFC, I think it can also be used on qt 4.6.x and on armv7.
> Setting QT_ARCH to armv6 enable some asm optimized functions in QT.

Do you know the consequences of this change? E.g. in the painting
engine unaligned memory access will be allowed. I am not sure that Nokia has
ever benchmarked what is faster (aligned/unaligned) access. So it would be
very interesting to know the perf difference. E.g. use qttracereply to measure it.

Phil do you happen to know why unaligned access got allowed starting from
armv6? How fast will it be?