/// Shifts each lane to the left by the specified number of bits.
///
/// Only the low bits of the shift amount are used if the shift amount is
/// greater than the lane width.
#[inline]
#[cfg_attr(test, assert_instr(i16x8.shl))]
#[target_feature(enable = "simd128")]
#[doc(alias("i16x8.shl"))]
#[stable(feature = "wasm_simd", since = "1.54.0")]
pub fn i16x8_shl(a: v128, amt: u32) -> v128 {
    unsafe { simd_shl(a.as_i16x8(), simd::i16x8::splat(amt as i16)).v128() }
}