https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93998
--- Comment #3 from Viktor Ostashevskyi <ostash at ostash dot kiev.ua> --- Bisected to: ee1de08d4d22648cf3168caa60e283135755da85 is the first bad commit commit ee1de08d4d22648cf3168caa60e283135755da85 Author: Jakub Jelinek <ja...@redhat.com> Date: Tue Dec 3 20:27:47 2019 +0100 re PR c++/91369 (Implement P0784R7: constexpr new) PR c++/91369 * constexpr.c (struct constexpr_global_ctx): Add cleanups member, initialize it in the ctor. (cxx_eval_constant_expression) <case TARGET_EXPR>: If TARGET_EXPR_SLOT is already in the values hash_map, don't evaluate it again. Put TARGET_EXPR_SLOT into hash_map even if not lval, and push it into save_exprs too. If there is TARGET_EXPR_CLEANUP and not CLEANUP_EH_ONLY, push the cleanup to cleanups vector. <case CLEANUP_POINT_EXPR>: Save outer cleanups, set cleanups to local auto_vec, after evaluating the body evaluate cleanups and restore previous cleanups. <case TRY_CATCH_EXPR>: Don't crash if the first operand is NULL_TREE. (cxx_eval_outermost_constant_expr): Set cleanups to local auto_vec, after evaluating the expression evaluate cleanups. * g++.dg/cpp2a/constexpr-new8.C: New test. From-SVN: r278945