On Mon, 15 Oct 2018, Segher Boessenkool wrote:
> On Sun, Oct 14, 2018 at 11:07:20PM +0300, Alexander Monakov wrote:
> > For Basic asms, no similar mechanism is necessary since they are 
> > antithetical
> > to efficiency in the first place.
> 
> I missed this part.
> 
>   asm("bla");
> 
> means almost the same as
> 
>   asm("bla" : );
> 
> and there is nothing in there that is bad for optimisation.

The extended asm does not clobber all memory, unlike its basic counterpart.

Alexander

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