On Thu, 12 Mar 2026 15:28:15 GMT, Roman Kennke <[email protected]> wrote:

>> Thomas Stuefe has updated the pull request with a new target base due to a 
>> merge or a rebase. The pull request now contains 65 commits:
>> 
>>  - Merge branch 'master' into JDK-8363996-Obsolete-UseCompressedClassPointers
>>  - Replace Metaspace::using_class_space with define
>>  - Update src/hotspot/cpu/x86/macroAssembler_x86.hpp
>>    
>>    Co-authored-by: David Holmes 
>> <[email protected]>
>>  - Replace Klass::_metadata union with narrowKlass member
>>  - Ivan: fix various instances of ObjLayout::undefined should assert
>>  - Ivan: Update src/hotspot/share/oops/instanceKlass.cpp
>>    
>>    Co-authored-by: Ivan Walulya <[email protected]>
>>  - David: reduce diff in ObjectCountEventVerifier.java
>>  - David: minimize change in GetObjectSizeIntrinsicsTest.java
>>  - David: minimize diffs in TestZGCWithCDS.java
>>  - David: minimize diffs for 
>> runtime/ErrorHandling/TestVMConfigInHsErrFile.java
>>  - ... and 55 more: https://git.openjdk.org/jdk/compare/9a26b4af...be3a902b
>
> src/hotspot/share/memory/metaspace.hpp line 168:
> 
>> 166: 
>> 167:   static bool is_class_space_allocation(MetadataType mdType) {
>> 168:     return CLASS_SPACE_ONLY(mdType) NOT_CLASS_SPACE(false);
> 
> This is confusing me. Is ClassType the only non-zero MetadataType? Might be 
> better to write that out as before, otherwise it's a weird implicit 
> conversion from MetadataType to bool.

Actually I think this is a bug because the enum is exactly backwards.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/28366#discussion_r2925523874

Reply via email to