config/i386/i386.c: Use rtx_code_label

config/i386/i386.c: Use rtx_code_label

gcc/
	* config/i386/i386.c (setup_incoming_varargs_64): Strengthen local
	"label" from rtx to rtx_code_label *.
	(ix86_expand_prologue): Likewise.
	(ix86_expand_split_stack_prologue): Likewise for locals "label",
	"varargs_label".
	(ix86_split_idivmod): Likewise for locals "end_label" and
	"qimode_label".
	(ix86_expand_branch): Likewise for local "label2".
	(ix86_expand_aligntest): Likewise for return type and local "label".
	(expand_set_or_movmem_via_loop): Likewise for locals "out_label" and
	"top_label".
	(expand_movmem_epilogue): Likewise for the various locals named
	"label".
	(expand_setmem_epilogue): Likewise.
	(expand_small_movmem_or_setmem): Likewise for local "label".
	(expand_set_or_movmem_prologue_epilogue_by_misaligned_moves):
	Strengthen param "done_label" from rtx * to rtx_code_label **.
	Strengthen locals "loop_label" and "label" from rtx to
	rtx_code_label *.
	(expand_set_or_movmem_prologue_epilogue_by_misaligned_moves):
	Likewise for locals "loop_label", "label".
	(ix86_expand_set_or_movmem): Likewise for locals "label",
	"jump_around_label", "hot_label".
	(ix86_expand_strlensi_unroll_1): Likewise for locals
	"align_2_label", align_3_label", "align_4_label", "end_0_label",
	"end_2_label".
	(x86_emit_floatuns): Likewise for locals "neglab", "donelab".
	(void ix86_emit_i387_log1p): Likewise for locals "label1",
	"label2", "jump_label".
	(ix86_expand_sse_compare_and_jump): Likewise for return type and
	local "label".
	(ix86_expand_lfloorceil): Likewise for local "label".
	(ix86_expand_rint): Likewise.
	(ix86_expand_floorceildf_32): Likewise.
	(ix86_expand_floorceil): Likewise.
	(ix86_expand_rounddf_32): Likewise.
	(ix86_expand_trunc): Likewise.
	(ix86_expand_truncdf_32): Likewise.
	(ix86_expand_round): Likewise.

From-SVN: r214443