Guilherme Ottoni
39416bcaa5
Accessibility of properties of persistent classes can be checked at JIT time, so use the SProp-based fast path for these cases too. Also, enhance HhbcTranslator to try to emit LdClsPropAddrCached, instead of relying on the Simplifier to transform LdClsPropAddr into LdClsPropAddrCached. Doing this only in the Simplifier results in unecessary ExceptionBarrier before LdClsPropAddrCached. However, there's still value in keeping the optimization in the Simplifier, so that it can leverage opportunities exposed by other optimizations. So factor out the logic to check whether to use the SProp cache.
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
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