Function svqdecd_pat_n_s32 

pub fn svqdecd_pat_n_s32<const PATTERN: svpattern, const IMM_FACTOR: i32>(
    op: i32,
) -> i32

🔬This is a nightly-only experimental API. (stdarch_aarch64_sve #145052)

Available on (AArch64 or ARM64EC) and target feature sve only.

Saturating decrement by number of doubleword elements Arm’s documentation