JDK-8365967 : C2 compiler support for HalffloatVector operations supported by auto-vectorization flow
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 26
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • CPU: x86_64
  • Submitted: 2025-08-22
  • Updated: 2025-08-22
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tbdUnresolved
Related Reports
Relates :  
JDK-8346236 - Auto vectorization support for various Float16 operations
Description
JDK-8346236[2][3] added the auto-vectorization support for Float16.add/sub/mul/div/sqrt/fma/max/min APIs.

Enable inference of the Float16 vector IR for HalffloatVector APIs by leveraging common backend implementation for various targets (x86, aarch64, etc) as per panama-dev proposal[1].

[1] https://mail.openjdk.org/pipermail/panama-dev/2025-August/021100.html
[2] openjdk/jdk#22755
[3] openjdk/jdk#22754