Joe Shajrawi b0fdadb3d2 Devirtualizer: disable the “effectively final” optimization if a function is inlinable. ...

The devirtualizer performs two optimizations:

- If a value is known to have an exact class type, ie it is the result of an alloc_ref, we can devirtualize calls of *non-final* methods, because we know we’re calling that specific method and not an override.

- If a method is known to be “effectively final” (it is not open, and there are no overrides inside the module) we can devirtualize it.

However the second optimization needs to be disabled if a function is inlinable (F->getResilienceExpansion() == ResilienceExpansion::Minimal).

2018-02-20 16:06:01 +02:00

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