[Bug c++/97187] [11 Regression] ICE: tree check: expected tree_list, have error_mark in tsubst_copy_and_build, at cp/pt.c:19782

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97187

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2020-09-24
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
                 CC|                            |jason at gcc dot gnu.org,
                   |                            |marxin at gcc dot gnu.org

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started to ICE with r11-423-gcda6396a1b6e6bba, before that it was rejected
with:

$ g++-10 pr97187.C -c -fno-exceptions
pr97187.C: In instantiation of ‘DI zl() [with DI = <lambda()>]’:
pr97187.C:15:30:   required from here
pr97187.C:7:57: error: exception handling disabled, use ‘-fexceptions’ to
enable
    7 |   auto au = [] () -> DI { return *new auto (true ? yp : throw); };
      |                                                         ^~~~~