https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94937
--- Comment #19 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:bf732686c0b9c42a2fe119db774c5a65e5a97174 commit r11-473-gbf732686c0b9c42a2fe119db774c5a65e5a97174 Author: Marek Polacek <pola...@redhat.com> Date: Wed May 6 19:24:58 2020 -0400 c++: ICE with -Wall and constexpr if [PR94937] An ICE arises here because we call cp_get_callee_fndecl_nofold in a template, and we've got a CALL_EXPR whose CALL_EXPR_FN is a BASELINK. This tickles the INDIRECT_TYPE_P assert in cp_get_fndecl_from_callee. Fixed by turning the assert into a condition and returning NULL_TREE in that case. PR c++/94937 * cvt.c (cp_get_fndecl_from_callee): Return NULL_TREE if the function type is not INDIRECT_TYPE_P. * decl.c (omp_declare_variant_finalize_one): Call cp_get_callee_fndecl_nofold instead of looking for the function decl manually. * g++.dg/cpp1z/constexpr-if34.C: New test. * g++.dg/cpp2a/is-constant-evaluated10.C: New test.
