JDK-8331659 : C2 SuperWord: investigate failed vectorization in compiler/loopopts/superword/TestMemorySegment.java
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 23
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2024-05-03
  • Updated: 2025-11-10
  • Resolved: 2025-07-30
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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.

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Other
tbdResolved
Related Reports
Duplicate :  
JDK-8356176 - C2 MemorySegment: missing RCE with byteSize() in Loop Exit Check inside the for Expression
Relates :  
JDK-8329273 - C2 SuperWord: Some basic MemorySegment IR tests
Relates :  
JDK-8359688 - C2 SuperWord: missing RCE with MemorySegment
Relates :  
JDK-8348096 - C2 SuperWord: investigate failed RCE for MemorySegment test
Relates :  
JDK-8371551 - Memory segment bulk copy operation performance lower when using plain loops
Relates :  
JDK-8356176 - C2 MemorySegment: missing RCE with byteSize() in Loop Exit Check inside the for Expression
Relates :  
JDK-8343536 - C2 SuperWord / MergeStores: investigate missing optimizations in MemorySegment examples
Description
This is a follow-up RFE for JDK-8329273.

After JDK-8330274 / JDK-8343685 some cases are fixed, but there are more remaining.