Bug ID: JDK-8223213 Implement fast class initialization checks on x86-64

JDK-8223213 : Implement fast class initialization checks on x86-64

Type: Enhancement
Component: hotspot
Sub-Component: compiler
Affected Version: 13

Priority: P3
Status: Resolved
Resolution: Fixed
CPU: x86

Submitted: 2019-05-01
Updated: 2019-06-14
Resolved: 2019-05-30

Versions (Unresolved/Resolved/Fixed)

The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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JDK 13	JDK 14
13 b24Fixed	14Fixed

Related Reports

Cloners :	JDK-8224827 - Implement fast class initialization checks on s390
Cloners :	JDK-8224826 - Implement fast class initialization checks on PPC64
Relates :	JDK-8223173 - Implement fast class initialization checks on AARCH64
Relates :	JDK-8220554 - REDO JDK-8219492: Restore static callsite resolution for the current class
Relates :	JDK-8219233 - 3x performance drop for some Clojure applications
Relates :	JDK-8225141 - Better handling of classes in error state by fast class initialization checks
Relates :	JDK-8219492 - Restore static callsite resolution for the current class
Relates :	JDK-8219974 - REDO JDK-8219492: Restore static callsite resolution for the current class
Relates :	JDK-8225106 - Class initialization checks assert when holder klass is in error state
Relates :	JDK-8223437 - Backout JDK-8219974 Restore static callsite resolution for the current class

Description

Implement fast class initialization checks in C1, C2, and template interpreter.

Comments

Addresses performance regression reported in JDK-8219233.

01-05-2019