JDK-8268405 : Several regressions 4-17% after CHA changes
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 17
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2021-06-08
  • Updated: 2022-08-04
  • Resolved: 2021-06-18
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JDK 17 JDK 18
17 b28Fixed 18Fixed
Related Reports
Relates :  
JDK-8269063 - Build failure due to VerifyReceiverTypes was not declared after JDK-8268405
Relates :  
JDK-8275830 - C2: Receiver downcast is missing when inlining through method handle linkers
Relates :  
JDK-8291832 - RenaissanceStressTest24H.java fails with "fatal error: missing receiver type check"
Relates :  
JDK-8267807 - C2: Downcast receiver to target holder during inlining
Description
Observed with some Dacapo and Renaissance benchmarks.
Probably related  to JDK-8065760 etc.
Comments
Changeset: 7ed3634d Author: Vladimir Ivanov <vlivanov@openjdk.org> Date: 2021-06-18 07:50:22 +0000 URL: https://git.openjdk.java.net/jdk17/commit/7ed3634da81b53135c89aa82a1a5d2f4de2c6c5e
18-06-2021
ILW = performance regression, two benchmarks, no workaround = MMH = P3
10-06-2021