[Bug c++/88554] [9 Regression] Segfault ICE when falling off the end of a reference-returning friend operator

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88554

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Same ICE with:
struct S {};
S & operator += (S &, S &) { }

Jonathan, are you going to add testcases and post this patch?  It LGTM.