Function svlsl_wide_s16_z 

pub fn svlsl_wide_s16_z(
    pg: svbool_t,
    op1: svint16_t,
    op2: svuint64_t,
) -> svint16_t

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

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

Logical shift left Arm’s documentation