[1/9] Move c6x REGNO_REG_CLASS out of line

[Jeff Law]

On 9/10/19 10:27 AM, Richard Sandiford wrote:
> I have a series of patches that hides call_used_regs from target-
> independent code, a knock-on effect of which is that (public) target
> macros can't use call_used_regs either.  This patch fixes the only
> case in which that was a problem.
> 
> 
> 2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>
> 
> gcc/
> 	* config/c6x/c6x-protos.h (c6x_set_return_address): Declare.
> 	* config/c6x/c6x.h (REGNO_REG_CLASS): Move implementation to
> 	* config/c6x/c6x.c (c6x_regno_reg_class): ...this new function.
OK
jeff