JDK-8363858 : [perf] OptimizeFill may use wide set of intrinsics
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 26
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86
  • Submitted: 2025-07-22
  • Updated: 2025-09-15
  • Resolved: 2025-09-04
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JDK 26
26 b15Fixed
Related Reports
Causes :  
JDK-8365290 - [perf] x86 ArrayFill intrinsic generates SPLIT_STORE for unaligned arrays
Description
The 'OptimizeFill' flag set to 'false' for the case "!VM_Version::supports_avx512vlbw()" but other intrinsic may be used for the case no 'vlbw' extension.
Comments
Changeset: 1dc1d56f Branch: master Author: Vladimir Ivanov <vaivanov@openjdk.org> Committer: Sandhya Viswanathan <sviswanathan@openjdk.org> Date: 2025-09-04 16:57:36 +0000 URL: https://git.openjdk.org/jdk/commit/1dc1d56f79e10c9b4c5c8b42a80a191f7b14c738
04-09-2025
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/26974 Date: 2025-08-27 23:56:40 +0000
28-08-2025