RFR (trivial): 8216285: Enable inlining of CollectedHeap::obj-/array-/class_allocate

[Roman Kennke]

>> Those methods are virtual. How useful is it to flag them 'inline' ?
> 
> Useful enough to measurably save a few ns/op on Array.newInstance and
> Object.clone microbenchmarks (when running TieredStopAtLevel=1 to stay
> in the JNI slow path).

If a method is virtual, it cannot be inlined, right? Unless you call it
in a funny non-virtual way. Or what am I missing?

Roman


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