JDK-8371643 : Remove ThreadLocalAllocBuffer::_reserve_for_allocation_prefetch
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 15
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2025-11-11
  • Updated: 2025-12-05
  • Resolved: 2025-11-18
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JDK 26
26 b25Fixed
Related Reports
Blocks :  
JDK-8371874 - AOTLinkedClassBulkLoader::preload_classes() should not allocate heap objects
Causes :  
JDK-8373092 - AArch64: runtime/cds/appcds/methodHandles/MethodHandlesSpreadArgumentsTest.java#aot segfaults in C2 compiled code with ZGC and CompactObjectHeaders
Relates :  
JDK-8373145 - [BACKOUT] Remove ThreadLocalAllocBuffer::_reserve_for_allocation_prefetch
Relates :  
JDK-8241787 - JEP 381: Remove the Solaris and SPARC Ports
Description
JDK-8153340 adds TLAB reserve for SPARC BIS prefetching.

Remove that since SPARC has been removed.
Comments
Changeset: 50a30497 Branch: master Author: Albert Mingkun Yang <ayang@openjdk.org> Date: 2025-11-18 09:37:20 +0000 URL: https://git.openjdk.org/jdk/commit/50a30497370799e8f377a11914562a15b0a48fbb
18-11-2025
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/28240 Date: 2025-11-11 15:42:21 +0000
11-11-2025