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From: "gawain.bolton at free dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/108104] New: ICE in unify, at cp/pt.c:24333 with template
 partial specialization
Date: Wed, 14 Dec 2022 16:57:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108104

            Bug ID: 108104
           Summary: ICE in unify, at cp/pt.c:24333 with template partial
                    specialization
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gawain.bolton at free dot fr
  Target Milestone: ---

Created attachment 54091
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54091&action=3Dedit
ICE with template partial specialization - No issue if WITH_STATE is 0 i.e.=
 if
the State parameter is absent

Please see attached file which causes an internal compiler error.

Note that there is no issue if the "State" template argument is removed as =
can
be shown if you set WITH_STATE to 0.

No issue found with clang >=3D v13.0

ICE found with all versions of GCC I tried (from GCC v4.9.4 to GCC v12.2)=