[Bug middle-end/115961] [15 Regression] wrong code on llvm-18.1.8 since r15-1936-g80e446e829d818 with bitfields less than the type mode precision

[pan2.li at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115961

--- Comment #3 from Li Pan <pan2.li at intel dot com> ---
Only x86 implemented the .SAT_TRUNC for scalar, so I bet it is almost the same
as this https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115863 ?