JDK-8247912 : Make narrowOop a scoped enum
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 16
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-06-19
  • Updated: 2024-11-21
  • Resolved: 2020-10-01
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JDK 16
16 b19Fixed
Related Reports
Blocks :  
JDK-8208089 - JEP 347: Enable C++14 Language Features
Relates :  
JDK-8253860 - PPC: Relocation::pd_set_data_value conflates compressed oops and klasses
Relates :  
JDK-8253970 - Build error: address argument to atomic builtin must be a pointer to integer or pointer ('volatile narrowOop *' invalid)
Description
By making narrowOop a scoped enum rather than a typef for uint32_t we can get better type checking without any performance impact.
Comments
Changeset: 2d9fa9da Author: Kim Barrett <kbarrett@openjdk.org> Date: 2020-10-01 10:45:22 +0000 URL: https://git.openjdk.java.net/jdk/commit/2d9fa9da
01-10-2020