[Bug c++/126794] New: [reflection] ICE in splice of member access via an incomplete base class

skarnproject at gmail dot com via Gcc-bugs <[email protected]> Tue, 11 Aug 2026 16:31:58 +0000

Newsgroups	gmane.comp.gcc.bugs
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126794

            Bug ID: 126794
           Summary: [reflection] ICE in splice of member access via an
                    incomplete base class
           Product: gcc
           Version: 16.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: skarnproject at gmail dot com
  Target Milestone: ---

Splicing a non-static data member that is declared in a base class, where the
object expression has a type that is itself a splice of a class-template
specialization, segfaults the compiler.

https://godbolt.org/z/Gd7Pr8naj
The example on Godbolt says it all.