mikemag ab9e26f8af Avoid stack overflow on super-large expressions of binary operators.
A small change to optimize very simple binary operators in the parser. This avoids building very large parse trees for super-large expressions and folds binary operators involving two scalars directly in the parser. I've limited this to simple scalars since it's easy to prove they don't have anything too interesting going on in the other analysis phases leading up to BinaryOpExpression's normal folding. This works for all binary operators.
2013-04-09 15:31:40 -07:00
2010-02-19 18:02:34 -08:00
2010-02-19 18:02:34 -08:00
2013-03-21 22:01:03 -07:00

HipHop VM for PHP

HipHop VM (HHVM) is a new open-source virtual machine designed for executing programs written in PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. HipHop VM (and before it HPHPc) has realized >5x increase in throughput for Facebook compared with Zend PHP 5.2.

Required Packages, and Installing and Running HipHop VM

The latest information is available on the wiki.

Contributing to HipHop VM

HipHop VM is licensed under the PHP and Zend licenses except as otherwise noted.

Before changes can be accepted a Contributors Licensing Agreement must be signed and returned.

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