Browse - Programming Tips - How can I get gcc to make the fastest possible code for

Date: 2015sep2
Product: gcc
Keywords: vectorize, slow, fast

Q.  How can I get gcc to make the fastest possible code for
one file without messing with the Makefile?

A.  You can place optimization directives in your code.

// Request max speed for this file #pragma GCC optimize ("Ofast") mySlowFunction1() { ... } mySlowFunction2() { ... }