https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114014
--- 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:d46c7f313b5a30ee04080f249e31e12987d50aa2 commit r15-6170-gd46c7f313b5a30ee04080f249e31e12987d50aa2 Author: Martin Uecker <uec...@tugraz.at> Date: Sat Nov 23 08:04:05 2024 +0100 Fix type compatibility for types with flexible array member 2/2 [PR113688,PR114713,PR117724] For checking or computing TYPE_CANONICAL, ignore the array size when it is the last element of a structure or union. To not get errors because of an inconsistent number of members, zero-sized arrays which are the last element are not ignored anymore when checking the fields of a struct. PR c/113688 PR c/114014 PR c/114713 PR c/117724 gcc/ChangeLog: * tree.cc (gimple_canonical_types_compatible_p): Add exception. gcc/lto/ChangeLog: * lto-common.cc (hash_canonical_type): Add exception. gcc/testsuite/ChangeLog: * gcc.dg/pr113688.c: New test. * gcc.dg/pr114014.c: New test. * gcc.dg/pr114713.c: New test. * gcc.dg/pr117724.c: New test.