JDK-8285040 : PPC64 intrinsics for divideUnsigned and remainderUnsigned methods in java.lang.Integer and java.lang.Long
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 19
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: ppc
  • Submitted: 2022-04-19
  • Updated: 2022-04-21
  • Resolved: 2022-04-21
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JDK 19
19 b18Fixed
Related Reports
Cloners :  
JDK-8282221 - x86 intrinsics for divideUnsigned and remainderUnsigned methods in java.lang.Integer and java.lang.Long
Description
Optimize the implementation of divideUnsigned() and remainderUnsigned() methods in java.lang.Integer and java.lang.Long classes by using PPC64 divwu / divu instructions. Cloned from JDK-8282221

Note: UseDivMod optimization needs to get implemented for platforms which don't have a combined instruction. Otherwise, some benchmarks will show regression.
Comments
Changeset: e955cacb Author: Martin Doerr <mdoerr@openjdk.org> Date: 2022-04-21 16:00:28 +0000 URL: https://git.openjdk.java.net/jdk/commit/e955cacb91420704de3c72861b3d559696dfd07b
21-04-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk/pull/8304 Date: 2022-04-19 19:29:34 +0000
19-04-2022