2017-07-23  Daniel Santos  <daniel.santos@pobox.com>

	* config/i386/i386.h (ix86_frame::outlined_save_offset): Remove field.
	(ix86_frame::stack_realign_allocate_offset): Likewise.
	(ix86_frame::stack_realign_allocate): New field.
	(struct machine_frame_state): Modify comments.
	(machine_frame_state::sp_realigned_fp_end): New field.
	(machine_function::call_ms2sysv_pad_out): Remove field.
	* config/i386/i386.c (xlogue_layout::get_stack_space_used): Modify.
	(ix86_compute_frame_layout): Likewise.
	(sp_valid_at): Likewise.
	(fp_valid_at): Likewise.
	(choose_baseaddr): Modify comments.
	(ix86_emit_outlined_ms2sysv_save): Modify.
	(ix86_expand_prologue): Likewise.
	(ix86_expand_epilogue): Modify comments.