/ 
Faster-Maths-0.01
River stage zero No dependents
/ Faster::Maths

NAME

Faster::Maths - make mathematically-intense programs faster

SYNOPSIS

use Faster::Maths;

# and that's it :)

DESCRIPTION

This module installs an optimizer into the perl compiler that looks for sequences of maths operations that it can make faster.

When this module is lexically in scope, mathematical expressions composed of the four basic operators (+, -, *, /) operating on lexical variables and constants will be compiled into a form that is more efficient at runtime.

TODO

  • Recognise more potential arguments - padrange and package variables at least.

  • Recognise more operators - %, unary - and sqrt, possibly other unary operators like sin.

  • Recognise the presence of overloading magic on variables and fall back to slower-but-correct operation in that case.

  • Split the runtime loop into IV/UV/NV cases, further optimise the accumulator value in each case.

  • Store IV/UV constants as values directly in the UNOP_AUX structure avoiding the need for SV lookup on them.

  • Back-compatibility to perls older than 5.22.0 by providing an UNOP_AUX implementation.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>