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Enhancement
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Resolution: Withdrawn
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P4
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13
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x86_64, aarch64
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generic
Currently, when doing oop arraycopy from C2 and C1, we call into runtime for pre-barrier, then do the arraycopy as fast-blt-loop, then call into runtime again for post-barrier.
In Shenandoah we would like to call into runtime once, and do the arraycopy in a single-loop, when GC is active, and only do the fast-blt-loop outside of GC.
This requires some GC interface changes to allow skipping the fast-loop when it's not needed, and to also pass the element type for doing the arraycopy loop and checkcasts in runtime.
In Shenandoah we would like to call into runtime once, and do the arraycopy in a single-loop, when GC is active, and only do the fast-blt-loop outside of GC.
This requires some GC interface changes to allow skipping the fast-loop when it's not needed, and to also pass the element type for doing the arraycopy loop and checkcasts in runtime.
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- Resolved
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- Closed
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- duplicates
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- Resolved
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- Closed
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