https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100489
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:0a1010428b3861464eb319c629c68cb13b9ca01e commit r11-8449-g0a1010428b3861464eb319c629c68cb13b9ca01e Author: Jason Merrill <ja...@redhat.com> Date: Wed May 19 21:12:45 2021 -0400 c++: designated init with anonymous union [PR100489] My patch for PR98463 added an assert that tripped on this testcase, because we ended up with a U CONSTRUCTOR with an initializer for a, which is not a member of U. We need to wrap the a initializer in another CONSTRUCTOR for the anonymous union. There was already support for this in process_init_constructor_record, but not in process_init_constructor_union. But since this is about brace elision, it really belongs under reshape_init rather than digest_init, so this patch moves the handling to reshape_init_class, which also handles unions. PR c++/100489 gcc/cp/ChangeLog: * decl.c (reshape_init_class): Handle designator for member of anonymous aggregate here. * typeck2.c (process_init_constructor_record): Not here. gcc/testsuite/ChangeLog: * g++.dg/cpp2a/desig18.C: New test.
