JDK-8282389 : Add new vector operations to count leading and trailing zeros.
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: repo-panama
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2022-02-25
  • Updated: 2022-04-19
  • Resolved: 2022-03-06
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Other
repo-panamaFixed
Related Reports
Relates :  
JDK-8283145 - [vector] Add the compiler IR and aarch64 support for count leading and trailing zeros
Relates :  
JDK-8284962 - Add new vector operations to count leading and trailing zeros.
Relates :  
JDK-8284503 - Java API definition and Compiler IR changes for newly proposed operation in VectorAPI - incubation 4
Description
- Add support for new vector operations CLZ (count number of leading zeros) and CTZ (could number of trailing zeros) for all the integral vector types(Byte/Short/Integer/Long).
- Add validation and performance tests corresponding the these operations in existing VectorAPI JTREG/JMH suite.
Comments
A pull request was submitted for review. URL: https://git.openjdk.java.net/panama-vector/pull/176 Date: 2022-02-25 18:59:34 +0000
25-02-2022