https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117370
--- Comment #3 from GCC 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:c1bbad07c8686c858ea58ffdb9db8f964bf485c6 commit r15-4953-gc1bbad07c8686c858ea58ffdb9db8f964bf485c6 Author: Jakub Jelinek <ja...@redhat.com> Date: Tue Nov 5 08:58:28 2024 +0100 c++: Mark replaceable global operator new/delete with const std::nothrow_t& argument as DECL_IS_REPLACEABLE_OPERATOR [PR117370] cxx_init_decl_processing predeclares 12 out of the 20 replaceable global new/delete operators and sets DECL_IS_REPLACEABLE_OPERATOR on those. But it doesn't handle the remaining 8, in particular void* operator new(std::size_t, const std::nothrow_t&) noexcept; void* operator new[](std::size_t, const std::nothrow_t&) noexcept; void operator delete(void*, const std::nothrow_t&) noexcept; void operator delete[](void*, const std::nothrow_t&) noexcept; void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&) noexcept; void* operator new[](std::size_t, std::align_val_t, const std::nothrow_t&) noexcept; void operator delete(void*, std::align_val_t, const std::nothrow_t&) noexcept; void operator delete[](void*, std::align_val_t, const std::nothrow_t&) noexcept; The following patch sets that flag during grok_op_properties for those, so that they don't need to be predeclared. The patch doesn't fix the whole PR, as some work is needed on the CDDCE side too, unlike the throwing operator new case the if (ptr) conditional around operator delete isn't removed by VRP and so we need to handle conditional delete for unconditional new. 2024-11-05 Jakub Jelinek <ja...@redhat.com> PR c++/117370 * cp-tree.h (is_std_class): Declare. * constexpr.cc (is_std_class): New function. (is_std_allocator): Use it. * decl.cc (grok_op_properties): Mark global replaceable operator new/delete operators with const std::nothrow_t & last argument with DECL_IS_REPLACEABLE_OPERATOR.
