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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/97347] [11 Regression] error: statement
 marked for throw in middle of block in botan
Date: Fri, 09 Oct 2020 08:13:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97347

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|10.0                        |11.0
           Assignee|marxin at gcc dot gnu.org          |rguenth at gcc dot =
gnu.org

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Since we're really want to insert on the edge and merely assert that will be
possible we should instead do

                      else
                        {
                          /* When we want to insert after a def where the
                             defining stmt throws then insert on the fallth=
ru
                             edge.  */
                          edge e =3D find_fallthru_edge
                                     (gimple_bb (insert_after->stmt)->succs=
);
                          basic_block new_bb
                            =3D gsi_insert_seq_on_edge_immediate (e, ctor_s=
eq);
                          gcc_assert (!new_bb);
                        }

possibly even allowing a new BB to be created (though our region collection
restrictions should not make this necessary).  Let me take this.=