JDK-8353895 : C2: add verification for unexpected null inputs during igvn
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 25
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-04-07
  • Updated: 2025-04-08
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tbdUnresolved
Related Reports
Relates :  
JDK-8298951 - Umbrella: improve CCP and IGVN verification
Description
This came up in this review:

https://github.com/openjdk/jdk/pull/23468#discussion_r2020528307

"Maybe we can somehow have igvn itself assert that every node it processes has a set of expected inputs non null? I suppose, every node type would need to define which of its inputs can be null, then."