JDK-8256061 : RegisterSaver::save_live_registers() omits upper halves of ZMM0-15 registers
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 11,16
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86
  • Submitted: 2020-11-09
  • Updated: 2021-05-06
  • Resolved: 2020-11-20
The Version table provides details related to the release that this issue/RFE will be addressed.

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.

To download the current JDK release, click here.
JDK 11 JDK 16
11.0.11-oracleFixed 16 b26Fixed
Related Reports
Relates :  
JDK-8256058 - Improve vector register handling in RegisterMap::pd_location() on x86
Description
RegisterSaver::save_live_registers() doesn't save upper halves of ZMM0-15 registers.
Comments
Note that this code is broken unless you also backport https://bugs.openjdk.java.net/browse/JDK-8256058.
06-05-2021
[~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.
12-01-2021
Changeset: f79e9d45 Author: Vladimir Ivanov <vlivanov@openjdk.org> Date: 2020-11-20 21:15:58 +0000 URL: https://github.com/openjdk/jdk/commit/f79e9d45
20-11-2020