Available on (x86 or x86-64) and target feature
sse
and x86-64 only.Expand description
Stores four 32-bit floats into aligned memory in reverse order.
If the pointer is not aligned to a 128-bit boundary (16 bytes) a general protection fault will be triggered (fatal program crash).
Functionally equivalent to the following code sequence (assuming p
satisfies the alignment restrictions):
*p = a.extract(3);
*p.add(1) = a.extract(2);
*p.add(2) = a.extract(1);
*p.add(3) = a.extract(0);