Hi,
On Tue, 17 Nov 2015 14:31:29, Jeff Law wrote:
> The benefit is traditional asms do the expected thing. With no way to
> describe dataflow, the only rational behaviour for a traditional asm is that
> it has to be considered a
use/clobber of memory and hard registers.
I'd like to mention here, that there is also another use-case for a basic asms:
It is most often used as a fairly portable memory barrier like this:
x = 1;
asm(""); // memory barrier
y = 2;
that is also the reason why every basic asm is implicitly a volatile asm.
Bernd.
