[Bug rtl-optimization/127903] simplify-rtx: bit-cast of an unordered vector comparison is folded to a constant zero

[igor at tachyum dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127903

--- Comment #4 from Igor Shevlyakov <igor at tachyum dot com> ---
Patch: https://gcc.gnu.org/pipermail/gcc-patches/2026-October/734915.html