d = vec_packs(a, b)The value
of each element of the result vector is the saturated value of the
corresponding element of the result of concatenating a and b.
Figure 1. Pack 8 integer elements (32-bit)
to 8 integer elements (16-bit)
| d | a | b |
|---|---|---|
| vector signed char | vector signed short | vector signed short |
| vector unsigned char | vector unsigned short | vector unsigned short |
| vector signed short | vector signed int | vector signed int |
| vector unsigned short | vector unsigned int | vector unsigned int |
| vector signed int | vector signed long long | vector signed long long |
| vector unsigned int | vector unsigned long long | vector unsigned long long |