re PR target/6466 (backend uses bad type for frame size calculation.)

re PR target/6466 (backend uses bad type for frame size calculation.)

	PR target/6466
	* config/sparc/sparc-protos.h (compute_frame_size): New prototype.
	(sparc_flat_compute_frame_size): Likewise.
	(sparc_flat_save_restore): Move prototype...
	* config/sparc/sparc.c (sparc_flat_save_restore): ...here.
	(save_regs): New prototype.
	(build_big_number): Likewise.
	(apparent_fsize): Change type to HOST_WIDE_INT.
	(actual_fsize): Likewise.
	(frame_base_offset): Likewise.
	(build_big_number): Add support for HOST_BITS_PER_WIDE_INT == 64.
	Change string descriptor to HOST_WIDE_INT_PRINT_DEC.
	[TARGET_ARCH64]: Use the sequence of sparc_emit_set_const64_longway
	to load a 64-bit constant.
	(sparc_nonflat_function_prologue): Change string descriptor to
	HOST_WIDE_INT_PRINT_DEC.  Change offset type to HOST_WIDE_INT.
	(output_restore_regs): Change offset type to HOST_WIDE_INT.
	(sparc_nonflat_function_epilogue): Change string descriptor to
	HOST_WIDE_INT_PRINT_DEC.  Use build_big_number.
	(output_sibcall): Change size type to HOST_WIDE_INT.  Use
	build_big_number.  Change string descriptor to HOST_WIDE_INT_PRINT_DEC.
	(sparc_frame_info): Change types for several components.
	(sparc_flat_compute_frame_size): Update types according to previous
	change.
	(sparc_flat_function_prologue): Change string descriptor to
	HOST_WIDE_INT_PRINT_DEC.  Change offset type to int.  Use
	build_big_number.
	(sparc_flat_function_epilogue): Change offset type to int.
	Rename 'size1' into 'reg_offset1'.  Change string descriptor to
	HOST_WIDE_INT_PRINT_DEC.  Use build_big_number.  Change big number
	limit to 4096 instead of 4095.

	* config/sparc/sparc.c (mems_ok_for_ldd_peep): Change offset type to
	HOST_WIDE_INT.

Co-Authored-By: Olivier Hainque <hainque@act-europe.fr>
From-SVN: r73942