Available on (x86 or x86-64) and target feature
avx,sse2
and x86 only.Expand description
Constructs a 256-bit floating-point vector of [4 x double]
from a
128-bit floating-point vector of [2 x double]
. The lower 128 bits
contain the value of the source vector. The upper 128 bits are set
to zero.