Bug ID: JDK-8354383 C2: enable sinking of Type nodes out of loop

JDK-8354383 : C2: enable sinking of Type nodes out of loop

Type: Enhancement
Component: hotspot
Sub-Component: compiler
Affected Version: 25

Priority: P4
Status: Open
Resolution: Unresolved

Submitted: 2025-04-11
Updated: 2025-05-23

Versions (Unresolved/Resolved/Fixed)

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Other
tbdUnresolved

Related Reports

Relates :	JDK-8332827 - [REDO] C2: crash in compiled code because of dependency on removed range check CastIIs
Relates :	JDK-8272562 - C2: assert(false) failed: Bad graph detected in build_loop_late

Description

PhaseIdealLoop::try_sink_out_of_loop() excludes Type nodes since 8272562. With 8332827, sinking Type nodes should be safe now.

Comments

You mention JDK-8332827 but do you actually mean JDK-8349479?

23-05-2025

A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/25396 Date: 2025-05-22 15:53:18 +0000

22-05-2025