https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89494
--- Comment #24 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:42e20fd25d3651349d892d8af864dc576c09019c commit r10-7749-g42e20fd25d3651349d892d8af864dc576c09019c Author: Jakub Jelinek <ja...@redhat.com> Date: Thu Apr 16 10:15:18 2020 +0200 bootstrap: Fix building with GCC 4.2 [PR89494] GCC 4.2 (but I think not the latest tip of GCC 4.2 branch) has broken value initialization, see PR33916. The following patch provides a workaround for that. Tested with GCC 4.2 on a reduced testcase I've distilled from the assign_param_data_one class which has been miscompiled the same. 2020-04-16 Jakub Jelinek <ja...@redhat.com> PR bootstrap/89494 * function.c (assign_parm_find_data_types): Add workaround for BROKEN_VALUE_INITIALIZATION compilers.