[02/13] Add must_pass_va_arg_in_stack

[Jeff Law]

On 8/19/19 9:12 AM, Richard Sandiford wrote:
> This patch splits out another idiom from the va_arg gimplification
> routines, so that there's only one place to update later.
> 
> 
> 2019-08-19  Richard Sandiford  <richard.sandiford@arm.com>
> 
> gcc/
> 	* calls.h (must_pass_va_arg_in_stack): Declare.
> 	* calls.c (must_pass_va_arg_in_stack): New function.
> 	* config/alpha/alpha.c (alpha_gimplify_va_arg_1): Use it.
> 	* config/sh/sh.c (sh_gimplify_va_arg_expr): Likewise.
> 	* config/stormy16/stormy16.c (xstormy16_gimplify_va_arg_expr):
> 	Likewise.
> 	* config/xtensa/xtensa.c (xtensa_gimplify_va_arg_expr): Likewise.
OK.  Hopefully they're all this easy to review :-)

jeff