vec_signexti

Purpose

Sign-extends smaller elements of a source vector to word length in the result vector.

Note: This built-in function is valid only when the -mcpu option is set to target POWER9 processors or higher.

Syntax

d=vec_signexti (a)

Result and argument types

The following table describes the types of the returned value and the function arguments.

Table 1. Result and argument types
d a
vector signed int vector signed char
vector signed short

Result value

Each word element of d is computed by sign-extending the rightmost element in the corresponding word of a.