https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98332
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:f5cea9c5c4f8cce36963973e432a8575ef9ffd63 commit r10-9169-gf5cea9c5c4f8cce36963973e432a8575ef9ffd63 Author: Jason Merrill <ja...@redhat.com> Date: Tue Dec 22 16:40:37 2020 -0500 c++: Fix constexpr array ICE [PR98332] The element initializer was non-constant, so its CONSTRUCTOR element ended up NULL, so unshare_constructor crashed trying to look at it. This patch fixes this in two places: First, by returning when we see a non-constant initializer; second, by not crashing on NULL. gcc/cp/ChangeLog: PR c++/98332 * constexpr.c (unshare_constructor): Check for NULL. (cxx_eval_vec_init_1): Always exit early if non-constant. gcc/testsuite/ChangeLog: PR c++/98332 * g++.dg/cpp0x/constexpr-overflow3.C: New test.
