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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98810] [C++20] ICE in tsubst_copy, at cp/pt.c:16771
Date: Mon, 25 Jan 2021 09:42:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98810

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-01-25
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
           Keywords|                            |ice-on-valid-code

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
clang accepts it with -std=3Dc++17, GCC rejects it there with

t.C:2:41: error: non-type template parameters of class type only available =
with
'-std=3Dc++20' or '-std=3Dgnu++20'=