Richard Henderson <richard.hender...@linaro.org> writes:
> For constant shifts, we can simply shift the s_mask. > > For variable shifts, we know that sar does not reduce > the s_mask, which helps for sequences like > > ext32s_i64 t, in > sar_i64 t, t, v > ext32s_i64 out, t > > allowing the final extend to be eliminated. > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> Reviewed-by: Alex Bennée <alex.ben...@linaro.org> -- Alex Bennée
