[Bug middle-end/71002] [6/7 Regression] -fstrict-aliasing breaks Boost's short string optimization implementation

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71002

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note that ultimatively the error is still that is_short () accesses the wrong
union member.

I'll still see whether there is a bug in optimize_bit_field_compare.