mwilliams
ad30d03b8c
eg (new X) == (new X); Was converted to something like: (new X); (new X); Which calls the destructor for the first X before constructing the second. I tried a fix where we used an ExpressionList with ListKindLeft, which would preserve both expressions until after both objects are created; but that ends up calling the second object's destructor first. Thats much better; its not clear to me that there's any guarantee about which object's destructor is called first when they both go out of scope at the same point; but currently hhvm and zend seem to aggree, so Im going with a solution that preserves the left-to-right order.
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.
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