https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78489
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Eric Fiselier from comment #2) > Created attachment 43737 [details] > reproducer2.cpp > > Another reproducer: This one is a regression from 7.3 > https://godbolt.org/g/UEti9f > > Could somebody please take a look at this? This one started to fail on trunk with r258039 PR c++/84489 - dependent default template argument * pt.c (type_unification_real): Handle early substitution failure. That fix has just been backported to the 6 and 7 branches, and so also fails with the tip of those branches.
