https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99063
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:f0da1c0cb7661ee9111bc475efddae80a026de34 commit r11-7192-gf0da1c0cb7661ee9111bc475efddae80a026de34 Author: Marek Polacek <pola...@redhat.com> Date: Wed Feb 10 22:51:30 2021 -0500 c++: ICE with unexpanded pack in do-while [PR99063] Here an unexpanded parameter pack snuck into prep_operand which doesn't expect to see an operand without a type, and since r247842 NONTYPE_ARGUMENT_PACK doesn't have a type anymore. This only happens with the do-while loop whose condition may not contain a declaration so we never called finish_cond which checks for unexpanded parameter packs. So use check_for_bare_parameter_packs to remedy that. gcc/cp/ChangeLog: PR c++/99063 * semantics.c (finish_do_stmt): Check for unexpanded parameter packs. gcc/testsuite/ChangeLog: PR c++/99063 * g++.dg/cpp0x/variadic-crash6.C: New test.
