Details
Backports
Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
---|---|---|---|---|---|---|
JDK-8219670 | 12.0.2 | Roman Kennke | P2 | Closed | Fixed | b01 |
Description
When called from C2, in ShenandoahBarrierSetAssembler::cmpxchg_oop() the result register may overlap with other input argument registers and thus fail the leading assert, and lead to clobbered registers. In the body of the code block, a temporary register should be used instead, and result should only get filled in at the end.
Attachments
Issue Links
- backported by
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JDK-8219670 Shenandoah: AArch64: Clobbered register in ShenandoahBarrierSetAssembler::cmpxchg_oop()
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- Closed
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- relates to
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JDK-8217016 Shenandoah: Streamline generation of CAS barriers
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- Resolved
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