Function svsubhnt_s32 

pub fn svsubhnt_s32(
    even: svint16_t,
    op1: svint32_t,
    op2: svint32_t,
) -> svint16_t

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

Available on (AArch64 or ARM64EC) and target feature sve and target feature sve2 only.

Subtract narrow high part (top) Arm’s documentation