vec_dstst

Purpose

Initiates the data read of a line into cache in a state most efficient for writing.

The data stream specified by c is read beginning at the address specified by a using the control word specified by b. Use of this built-in function indicates that the specified data stream is relatively persistent in nature.

Syntax

vec_dstst(a, b, c)

Result and argument types

This function does not return any value. The following table describes the types of the function arguments.

Table 1. Types of the function arguments
a b c1
const signed char * any integral type unsigned int
const signed short *
const signed int *
const float *
Note:
  1. c must be an unsigned literal with a value in the range 0 - 3 inclusive.
Parent topic: Vector built-in functions


Voice your opinion on getting help information Ask IBM compiler experts a technical question in the IBM XL compilers forum Reach out to us