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<strong>HHVM</strong> – Native code JIT<br />
• Bytecodes run a few times cold<br />
Modified<br />
N<br />
Y<br />
Invalidate<br />
Cache<br />
• Variable type inference<br />
• Hotpath detection<br />
Y<br />
Have native<br />
N<br />
Compile to<br />
Bytecode<br />
• Transform to native code<br />
Run Native<br />
Y<br />
Hot<br />
Compile to<br />
Native<br />
N<br />
Run<br />
Bytecode