__builtin_maddld
Purpose
Fixed-point Multiply-Add low doubleword.
Multiplies the first two arguments, adds the third argument, and returns the low doubleword of the result.
This built-in function is valid only when -qarch(-mcpu) is set to utilize the POWER9™ technology.
Prototype
signed long long __builtin_maddld (signed long long, signed long long, signed long long);
unsigned long long __builtin_maddld (unsigned long long, unsigned long long, unsigned long long);
