mwilliams
6f223125a5
"$unused_local = UndefinedConstant;" was being optimized away, so we didnt get a warning for the constant. return it instead. $unused_local = new Object; return; became new Object; return; This affected the (unspecified) order of destruction of $this vs $unused_local. Since we're specifically trying to test that we dont crash when a local generates a backtrace after $this has been destroyed, force the variable to be used.
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.