JDK-8279508 : Auto-vectorize Math.round API
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 19
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86_64
  • Submitted: 2022-01-05
  • Updated: 2024-01-31
  • Resolved: 2022-04-02
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JDK 19
19 b17Fixed
Related Reports
Blocks :  
JDK-8282541 - AArch64: Auto-vectorize Math.round API
Relates :  
JDK-8325037 - x86: enable and fix hotspot/jtreg/compiler/vectorization/TestRoundVectFloat.java
Description
- Extend auto vectorizer to cover Math.round(float) and Math.round(double) operations.
- Semantics of Math.round(float/double) match with F2I and D2L operations for various special floating point values.
- Reuse existing VectorCastF2X/D2X IR.
Comments
Changeset: 003ec21f Author: Jatin Bhateja <jbhateja@openjdk.org> Date: 2022-04-02 18:00:33 +0000 URL: https://git.openjdk.java.net/jdk/commit/003ec21f3c9e9b8dabb1fbaa6b86da6028a2a4ef
02-04-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk/pull/7094 Date: 2022-01-15 02:21:38 +0000
15-01-2022