On 02/15/2011 03:47 AM, bearophile wrote:
Don:
But still, cache effects are more important than instruction scheduling
in 99% of cases.
I agree.
CPUs have prefetching instructions, but D doesn't expose them as intrinsics. A
bit more higher level visibility for those instructions may be positive today.
Being D a system language, another possible idea is to partially unveil what's under the
"array as a random access memory" illusion.
By the way, what does D rewrite:
foreach (e ; array) {
f(e);
}
to? I would guess something along the line of:
auto p = array.ptr
while (notAtEnd) {
f(*p);
++ p;
}
?
Denis
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