JDK-8255579 : x86: Use cmpq(Register,Address) in safepoint_poll
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 16
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2020-10-29
- Updated: 2024-12-09
- Resolved: 2020-10-29
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| JDK 16 |
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16 b23Fixed  |
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Description
JDK-8253180 added a new block in `safepoint_poll` that uses broken `cmpq` (JDK-8255550): it effectively does the comparison with operands swapped. It makes sense to use the non-broken `cmpq`, as to avoid changing the condition code and thus making the code less understandable.
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