Hello, Tony,
Does Itanium permit speculative stores? For example, on Itanium what are
the permitted outcomes of the following litmus test, where both x and y
are initially zero?
CPU 0 CPU 1
r1 = ACCESS_ONCE(x); r2 = ACCESS_ONCE(y);
if (r1) if (r2)
ACCESS_ONCE(y) = 1; ACCESS_ONCE(x) = 1;
In particular, is the outcome (r1 == 1 && r2 == 1) possible on Itanium
given this litmus test?
Thanx, Paul
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