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Subject: Re: [PATCH/RFC] qt4-embedded: tune QT_ARCH for armv6
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On 11/04/2010 08:14 PM, Eric B=C3=A9nard wrote:
> Hi,
ill it be?
>>
> in the painting engine, from what I saw in the .h, the asm optimisation=
s are
> only enabled when using ARM RCVT compiler and not when using gcc but I =
have
> not checked everywhere in the code so I'm not sure of this.

that is something else, I also have a partially applied C implementation =
that
appears to be faster than the brute force armv6 code.

One benefit of using armv6 is that the atomic code will use a different
implementation (ldrex,strex IIRC instead of swp). In any case please use
something like qttracereply to see if passing armv6 is giving any benefit=
 at all.