JDK-8315612 : RISC-V: intrinsic for unsignedMultiplyHigh
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 21,22
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: riscv
  • Submitted: 2023-09-04
  • Updated: 2023-09-08
  • Resolved: 2023-09-06
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JDK 21 JDK 22
21.0.2Fixed 22 b14Fixed
Related Reports
Relates :  
JDK-8275167 - x86 intrinsic for unsignedMultiplyHigh
Description
Optimize the new Math.unsignedMultiplyHigh using the risc-v mulhu instruction.
Comments
[jdk21u-fix-request] Approval Request from VladimirKempik I would like to backport this to jdk21u, risc-v only change to C2, risc is low
06-09-2023
A pull request was submitted for review. URL: https://git.openjdk.org/jdk21u/pull/139 Date: 2023-09-06 09:40:03 +0000
06-09-2023
Changeset: 5d3fdc17 Author: Vladimir Kempik <vkempik@openjdk.org> Date: 2023-09-06 06:49:10 +0000 URL: https://git.openjdk.org/jdk/commit/5d3fdc1750645455d64a341e1437f779ba3fd20c
06-09-2023
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/15558 Date: 2023-09-04 09:54:55 +0000
04-09-2023