On Mon, Nov 4, 2019 at 4:29 PM Richard Sandiford
wrote:
>
> The number of iterations of an epilogue loop is always smaller than the
> VF of the main loop. vect_analyze_loop_costing was taking this into
> account when deciding whether the loop is cheap enough to vectorise,
> but that has no effect
The number of iterations of an epilogue loop is always smaller than the
VF of the main loop. vect_analyze_loop_costing was taking this into
account when deciding whether the loop is cheap enough to vectorise,
but that has no effect with the unlimited cost model. We need to use
a separate check fo