https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114361
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Martin Uecker <uec...@gcc.gnu.org>: https://gcc.gnu.org/g:871bb5ad2dd56343d80b6a6d269e85efdc9999e5 commit r14-9763-g871bb5ad2dd56343d80b6a6d269e85efdc9999e5 Author: Martin Uecker <uec...@tugraz.at> Date: Thu Mar 28 19:15:40 2024 +0100 Fix ICE with -g and -std=c23 related to incomplete types [PR114361] We did not copy TYPE_CANONICAL to the incomplete variants when completing a structure. PR c/114361 gcc/c/ * c-decl.cc (finish_struct): Set TYPE_CANONICAL when completing strucute types. gcc/testsuite/ * gcc.dg/pr114361.c: New test. * gcc.dg/c23-tag-incomplete-1.c: New test. * gcc.dg/c23-tag-incomplete-2.c: New test.