RFR 8223345 [lworld] Implement ValueTypeReturnedAsFields for C1
ioi.lam at oracle.com
Sat May 4 00:13:10 UTC 2019
The implementation is pretty straight-forward as most of the work of
packing/unpacking is done inside runtime functions, the same as the
I refactored MacroAssembler::store_value_type_fields_to_buf so that it
can be reused between the interpreter and C1.
One problem with the current way of using the runtime functions is that
it's neither fast, nor small :-(
+ For better performance, it might be better to do the packing/unpacking
I'll leave that for future optimization.
+ On the other hand, if we want smaller code, I think the
inline-allocation code can
be moved into ValueKlass::pack_handler(). I might do that as a
I've added FIXME comments in the code for the above.
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