JDK-8354383 : C2: enable sinking of Type nodes out of loop
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 25
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2025-04-11
  • Updated: 2025-12-12
  • Resolved: 2025-06-10
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JDK 26
26 b02Fixed
Related Reports
Causes :  
JDK-8373508 - C2: assert(local == C->top()) failed: LocArray collision
Causes :  
JDK-8373569 - C2: assert(is_Call()) failed: invalid node class: Region
Causes :  
JDK-8361532 - RISC-V: Several vector tests fail after JDK-8354383
Relates :  
JDK-8272562 - C2: assert(false) failed: Bad graph detected in build_loop_late
Relates :  
JDK-8361702 - C2: assert(is_dominator(compute_early_ctrl(limit, limit_ctrl), pre_end)) failed: node pinned on loop exit test?
Relates :  
JDK-8332827 - [REDO] C2: crash in compiled code because of dependency on removed range check CastIIs
Description
PhaseIdealLoop::try_sink_out_of_loop() excludes Type nodes since 8272562. With 8332827, sinking Type nodes should be safe now.
Comments
Changeset: a2f99fd8 Branch: master Author: Roland Westrelin <roland@openjdk.org> Date: 2025-06-10 14:19:19 +0000 URL: https://git.openjdk.org/jdk/commit/a2f99fd88bd03337e1ba73b413ffe4e39f3584cf
10-06-2025
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