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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 18
Affects Version/s: 18
Component/s: hotspot
Labels:
- c2
- performance

Subcomponent:
compiler
Resolved In Build:
b21
CPU:

x86_64
OS:

generic

- Optimize existing macro assembly routine MacroAssembler::generate_fill called from fill stubs for various primitive types.
- Enable JVM flag -XX:OptimizeFill by default over X86.

causes

JDK-8349452 Performance regression for Arrays.fill() with AVX512

Open

relates to

JDK-8299179 ArrayFill with store on backedge needs to reduce length by 1

Resolved

JDK-8247307 C2: Loop array fill stub routines are not called

Resolved

links to

Commit openjdk/jdk/4be88d54

Review openjdk/jdk/5967

Assignee:: Jatin Bhateja

Reporter:: Jatin Bhateja

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Created:: 2021-10-11 05:07

Updated:: 2025-02-05 07:11

Resolved:: 2021-10-26 05:49

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