[Bug c++/100111] [10/11 Regression] `-fno-elide-constructors` with `constexpr` ctors causes ICE in GCC 10.3

[lh_mouse at 126 dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100111

--- Comment #5 from Liu Hao <lh_mouse at 126 dot com> ---
Thanks for the patch. I am now starting bootstrapping GCC 10.3.1 on
`{i686,x86_64}-w64-mingw32`. Let me see how it goes.