[Bug c++/119153] Static storage for initializer_list no longer shares with array literals

[lichray at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119153

--- Comment #2 from Zhihao Yuan <lichray at gmail dot com> ---
Regression or not, if -fmerge-all-constants is acceptable, P2752 wouldn't
exist:

https://godbolt.org/z/TTfbj7jjE