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Re: Please do not yell at people for trying to help you.



On Nov 12, 2010, at 4:23 PM, Eduardo Horvath wrote:

> On Sat, 13 Nov 2010, Valeriy E. Ushakov wrote:
> 
>> On Fri, Nov 12, 2010 at 21:59:54 +0100, Joerg Sonnenberger wrote:
>> 
>>> On Fri, Nov 12, 2010 at 08:31:39PM +0000, Eduardo Horvath wrote:
>>>> The assignment:
>>>> 
>>>> foo.size = htole64(size);
>>>> 
>>>> Cannot be replaced with:
>>>> 
>>>> __inline __asm("stxa %1, [%0] ASI_LITLE" : &foo.size : size);
>>> 
>>> Actually, it should be possible to do exactly that if you allow the
>>> output register to be a memory location. Not sure how smart GCC is for
>>> this though.
>> 
>> Yeah, I don't see why memory operand contraint wouldn't work here.
>> SPARC 'T' constraint - memory address aligned at 8 bytes.
> 
> 'Cause you're storing to foo.size which is not a parameter in the macro.

Then again, you could teach the GCC optimizer to make the substitution.

        paul



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