Use function_arg_info for TARGET_CALLEE_COPIES

Use function_arg_info for TARGET_CALLEE_COPIES

The hook is passed the unpromoted type mode instead of the promoted mode.

The aarch64 definition is redundant, but worth keeping for emphasis.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (callee_copies): Take a function_arg_info instead
	of a mode, type and named flag.
	* doc/tm.texi: Regenerate.
	* targhooks.h (hook_callee_copies_named): Take a function_arg_info
	instead of a mode, type and named flag.
	(hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false): Delete.
	(hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true): Likewise.
	(hook_bool_CUMULATIVE_ARGS_arg_info_true): New function.
	* targhooks.c (hook_callee_copies_named): Take a function_arg_info
	instead of a mode, type and named flag.
	(hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false): Delete.
	(hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true): Likewise.
	(hook_bool_CUMULATIVE_ARGS_arg_info_true): New function.
	* calls.h (reference_callee_copied): Take a function_arg_info
	instead of a mode, type and named flag.
	* calls.c (reference_callee_copied): Likewise.
	(initialize_argument_information): Update call accordingly.
	(emit_library_call_value_1): Likewise.
	* function.c (gimplify_parameters): Likewise.
	* config/aarch64/aarch64.c (TARGET_CALLEE_COPIES): Define to
	hook_bool_CUMULATIVE_ARGS_arg_info_false instead of
	hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false.
	* config/c6x/c6x.c (c6x_callee_copies): Delete.
	(TARGET_CALLEE_COPIES): Define to
	hook_bool_CUMULATIVE_ARGS_arg_info_true instead.
	* config/epiphany/epiphany.c (TARGET_CALLEE_COPIES): Define to
	hook_bool_CUMULATIVE_ARGS_arg_info_true instead of
	hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true.
	* config/mips/mips.c (mips_callee_copies): Take a function_arg_info
	instead of a mode, type and named flag.
	* config/mmix/mmix.c (TARGET_CALLEE_COPIES): Define to
	hook_bool_CUMULATIVE_ARGS_arg_info_true instead of
	hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true.
	* config/mn10300/mn10300.c (TARGET_CALLEE_COPIES): Likewise.
	* config/msp430/msp430.c (msp430_callee_copies): Delete.
	(TARGET_CALLEE_COPIES): Define to
	hook_bool_CUMULATIVE_ARGS_arg_info_true instead.
	* config/pa/pa.c (pa_callee_copies): Take a function_arg_info
	instead of a mode, type and named flag.
	* config/sh/sh.c (sh_callee_copies): Likewise.
	* config/v850/v850.c (TARGET_CALLEE_COPIES): Define to
	hook_bool_CUMULATIVE_ARGS_arg_info_true instead of
	hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true.

From-SVN: r274702