https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94907
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:3d4c7e05de438fb0672f376e628c18812eea8982 commit r10-8114-g3d4c7e05de438fb0672f376e628c18812eea8982 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed May 6 23:36:31 2020 +0200 c++: Don't synthesize sfk_comparison method multiple times [PR94907] On the following testcase we ICE, because synthesize_method is called twice on the same sfk_comparison method fndecl, the first time it works fine because start_preparsed_function in that case sets both current_function_decl and cfun, but second time it is called it only sets the former and keeps cfun NULL, so we ICE when trying to store current_function_returns_value. I think it is just wrong to call synthesize_method multiple times, and most synthesize_method callers avoid that by not calling it if DECL_INITIAL is already set, so this patch does that too. 2020-05-06 Jakub Jelinek <ja...@redhat.com> PR c++/94907 * method.c (defaulted_late_check): Don't call synthesize_method on constexpr sfk_comparison if it has been called on it already. * g++.dg/cpp2a/spaceship-synth8.C: New test.
