Deep Dive into PHP 8's JIT

Re:Deep Dive into PHP 8's JIT by nawarian on Sunday August 30, 2020 @05:52AM (#24322418)

I might be wrong here, as I'm not so close to Java development. But a language implementing JIT, at least to me, is interpreted.

Could you please point an implementation detail where a JIT-capable engine doesn't include interpretation in its runtime?

In every case, thanks a lot for your feedback!

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Re:Deep Dive into PHP 8's JIT by pjmlp on Sunday August 30, 2020 @08:47AM (#24322895)

Well, from CS compiler theory point of view it is not.

For example in .NET, MSIL goes directly into a pipeline that produces native. You can easily validate that RyuJIT has no interpretation.

Or for example, watchOS applications packaged with bitcode, get JIT compiled at installation time.

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Re:Deep Dive into PHP 8's JIT by jashmatthews on Sunday August 30, 2020 @06:40AM (#24322548)

V8 had only baseline compilation until much later https://v8.dev/blog/ignition-interpreter

It's not super exotic to do this.

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