JDK-8289422 : Fix and re-enable vector conditional move
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 20
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2022-06-29
  • Updated: 2022-11-01
  • Resolved: 2022-09-27
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JDK 20
20 b17Fixed
Related Reports
Relates :  
JDK-8293833 - Error mixing types with -XX:+UseCMoveUnconditionally -XX:+UseVectorCmov
Relates :  
JDK-8295407 - C2 crash: Error: ShouldNotReachHere() in multiple vector tests with -XX:-MonomorphicArrayCheck -XX:-UncommonNullCast
Description
After JDK-8139340 and JDK-8192846, vector conditional move was supported on x86. But the work flow is broken in the latest JDK. Also, no codegen rules for CMoveVF/CMoveVD in the aarch64 backend. The task is to fix and re-enable vector conditional move on x86 and support it on aarch64 as well.
Comments
Changeset: aa48705d Author: Fei Gao <fgao@openjdk.org> Committer: Pengfei Li <pli@openjdk.org> Date: 2022-09-27 01:24:17 +0000 URL: https://git.openjdk.org/jdk/commit/aa48705dddee674baa479f5128cfc3b426d87d2d
27-09-2022
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/9652 Date: 2022-07-27 06:15:57 +0000
27-07-2022