[097/nnn] poly_int: alter_reg

[Jeff Law]

On 10/23/2017 11:39 AM, Richard Sandiford wrote:
> This patch makes alter_reg cope with polynomial mode sizes.
> 
> 
> 2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>
> 	    Alan Hayward  <alan.hayward@arm.com>
> 	    David Sherwood  <david.sherwood@arm.com>
> 
> gcc/
> 	* reload1.c (spill_stack_slot_width): Change element type
> 	from unsigned int to poly_uint64_pod.
> 	(alter_reg): Treat mode sizes as polynomial.
OK.
Jeff