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Type:
Enhancement
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Resolution: Duplicate
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Priority:
P3
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Affects Version/s: 13
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Component/s: hotspot
Subtype checks sometimes require complex control flow and loop predication can't handle it.
One example is receiver subtype checks for invokeinterface/invokespecial of interface methods: it involves a subtype check against an interface. As JDK-8220708 demonstrates, when the check is loop invariant, it is very beneficial to hoist it out of the loop.
One example is receiver subtype checks for invokeinterface/invokespecial of interface methods: it involves a subtype check against an interface. As JDK-8220708 demonstrates, when the check is loop invariant, it is very beneficial to hoist it out of the loop.
- duplicates
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- Resolved
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- relates to
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JDK-8220708 Slow matching of specific regular expressions
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- Open
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- Closed
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