JDK-8270366 : C2: Add associative rule to add/sub node
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2021-07-13
  • Updated: 2021-07-22
  • Resolved: 2021-07-15
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JDK 18
18 b07Fixed
Related Reports
Relates :  
JDK-8270823 - Provide IR test for JDK-8270366
Description
The associative transformation: a*b +/- a*c => a*(b+/-c) eliminates a multiply operation.
Comments
Changeset: 746fe5dc Author: Zhengyu Gu <zgu@openjdk.org> Date: 2021-07-15 16:40:30 +0000 URL: https://git.openjdk.java.net/jdk/commit/746fe5dc6857f6e0af42ed150665fa26f52b60ee
15-07-2021