vec_cmplt

Purpose

Returns a vector containing the results of a less-than comparison between each set of corresponding elements of the given vectors.

This operation emulates the operation on long long vectors.

Syntax

d=vec_cmplt(a, b)

Result and argument types

The following tables describe the types of the returned value and the function arguments.

Table 1. Result and argument types
d	a	b
vector bool char	vector signed char	vector signed char
vector bool char	vector unsigned char	vector unsigned char
vector bool short	vector signed short	vector signed short
vector bool short	vector unsigned short	vector unsigned short
vector bool int	vector signed int	vector signed int
	vector unsigned int	vector unsigned int
	vector float	vector float
vector bool long long	vector double	vector double

Note: The following types are valid when -mcpu is set to target POWER7 processors, or higher. However, compiling with POWER8 processors or higher yields more efficient code generation by utilizing the available POWER8 instructions.

Table 2. Result and argument types
d	a	b
vector bool long long	vector signed long long	vector signed long long
vector bool long long	vector unsigned long long	vector unsigned long long

Result value

For each element of the result, the value of each bit is 1 if the value of the corresponding element of a is less than the value of the corresponding element of b. Otherwise, the value of each bit is 0.