Available on (x86 or x86-64) and target feature
fma
and x86-64 only.Expand description
Multiplies the lower double-precision (64-bit) floating-point elements in
a
and b
, and subtract packed elements in c
from the negated
intermediate result. Store the result in the lower element of the returned
value, and copy the upper element from a
to the upper elements of the
result.