> This is saying that *every* op except those very few works on the full > register. And that for every architecture that has W_R_O.
That's still a progress over the previous situation. > It also only looks at the top code in the RTL, so it will say for example > a rotate-and-mask is just fine, while that isn't true. Not clear whether this needs to be recursive because nonzero_bits1 and num_sign_bit_copies1 already recurse on RTXes. -- Eric Botcazou
