JDK-8076987 : C1 should support conditional card marks (UseCondCardMark)
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 8,9
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2015-04-05
- Updated: 2020-08-19
- Resolved: 2015-04-23
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| JDK 9 |
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9 b64Fixed  |
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JDK-8169581 :
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Description
Now that there is no "Server VM" that only runs C2, but the tiered VM that runs both C1 and C2, it makes sense to support UseCondCardMark in C1-generated code. Otherwise, the warm code compiled by C1 can obliterate the conditional card mark check in hot code compiled with C2.
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