__builtin_maddhdu

Purpose

Fixed-point Multiply-Add high doubleword unsigned.

Multiplies the first two arguments, adds the third argument, and returns the high doubleword of the result.

This built-in function is valid only when -qarch(-mcpu) is set to utilize the POWER9™ technology.

unsigned long long __builtin_maddhdu (unsigned long long, unsigned long long, unsigned long long);