https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107938
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:ea718febab2a1f6e58806738abf70f1c73c6a308 commit r13-6376-gea718febab2a1f6e58806738abf70f1c73c6a308 Author: Marek Polacek <pola...@redhat.com> Date: Thu Feb 23 17:54:47 2023 -0500 c++: ICE with constexpr variable template [PR107938] Since r11-557, cp_finish_decl can call check_initializer even in a template for a constexpr initializer. That ultimately leads to convert_for_assignment and check_address_or_pointer_of_packed_member, where we crash, because it doesn't expect that the CALL_EXPR is a function object. Q has a constexpr operator(), but since we're in a template, q(0) is a CALL_EXPR whose CALL_EXPR_FN is just a VAR_DECL; it hasn't been converted to Q::operator<int>(&q, 0) yet. I propose to robustify check_address_or_pointer_of_packed_member. var-templ74.C has an XFAIL, subject to 107939. I noticed that our -Waddress-of-packed-member tests weren't testing member functions, added thus. (I was tempted to check FUNCTION_POINTER_TYPE_P but that doesn't include METHOD_TYPE.) PR c++/107938 gcc/c-family/ChangeLog: * c-warn.cc (check_address_or_pointer_of_packed_member): Check POINTER_TYPE_P. gcc/testsuite/ChangeLog: * g++.dg/cpp1y/var-templ73.C: New test. * g++.dg/cpp1y/var-templ74.C: New test. * g++.dg/warn/Waddress-of-packed-member3.C: New test.
