JDK-8256056 : Deoptimization stub doesn't save vector registers on x86
Type:Bug
Component:hotspot
Sub-Component:compiler
Affected Version:11,16
Priority:P3
Status:Resolved
Resolution:Fixed
CPU:x86
Submitted:2020-11-09
Updated:2024-12-20
Resolved:2020-11-20
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Unresolved : Release in which this issue/RFE will be addressed. Resolved: Release in which this issue/RFE has been resolved. Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
Deoptimization stub doesn't save vector registers on x86 and it may break vector rematerialization when a vector value (produced through Vector API) ends up in a register (and not spilled on stack).
Comments
[~jiefu], I will sponsor this for 11u.
12-01-2021
I'd like to backport this patch to 11u to fix the potential vector bugs.
The patch can be applied cleanly.
And I need a sponsor.
Thanks.