Fastmath example

In this example we show how to use the FastMath library in the Autotiler. It implements a large subset of the math.h library using some optimizations, like the famous fast square root optimization.

In the main.c we compare the fast implementation with others, like directly the math.h one, or other custom ones (in utils.c).

By default we test the SQRT function and compare to the GAP builtin both in terms of performance and MSE wrt to the ground truth math.h implementation.