[Bug rtl-optimization/125988] `store_bit_field_1` drops insertion into multi-register vector destination with -O3 -favoid-store-forwarding

[konstantinos.eleftheriou at vrull dot eu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125988

--- Comment #9 from Konstantinos Eleftheriou <konstantinos.eleftheriou at vrull dot eu> ---
Submitted the fix:
https://gcc.gnu.org/pipermail/gcc-patches/2026-June/722030.html