JDK-8372685 : C2 SuperWord: wrong requires in test after JDK-8371146
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 26
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2025-11-27
  • Updated: 2025-12-01
  • Resolved: 2025-12-01
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JDK 26
26 masterFixed
Related Reports
Causes :  
JDK-8371146 - C2 SuperWord: VTransform::add_speculative_check uses pre_init that is pinned after Auto_Vectorization_Check, leading to bad graph
Duplicate :  
JDK-8372751 - [TESTBUG] @requires vm.gc == "ZGC" doesn't work
Description
See discussion in JDK-8371146, fails if ZGC not available.

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TestAliasingCheckPreLimitNotAvailable_all-flags-fixed-stress-seed.jtr and TestAliasingCheckPreLimitNotAvailable_all-flags-no-stress-seed.jtr show failures on WIndows :

[0.095s][error][gc] Failed to lookup symbol: VirtualAlloc2
Error occurred during initialization of VM
ZGC requires Windows version 1803 or later

AIX fails too :
Error occurred during initialization of VM
Option -XX:+UseZGC not supported
Comments
Changeset: 81b26ba8 Branch: master Author: Emanuel Peter <epeter@openjdk.org> Date: 2025-12-01 06:42:53 +0000 URL: https://git.openjdk.org/jdk/commit/81b26ba8131b74a7bb4309bd3608dda2ba99a6ca
01-12-2025
Also reported by JDK-8372751.
01-12-2025
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/28537 Date: 2025-11-27 13:53:12 +0000
27-11-2025