s390.c (legitmate_constant_p): Use LARL on zSeries machines even in 31-bit addressing...

s390.c (legitmate_constant_p): Use LARL on zSeries machines even in 31-bit addressing mode.

	* config/s390/s390.c (legitmate_constant_p): Use LARL on
	zSeries machines even in 31-bit addressing mode.
	(legitimate_reload_constant_p): Likewise.
	(legitimize_pic_address): Likewise.
	(legitimize_tls_address): Likewise.
	(s390_split_branches): Likewise.
	(s390_dump_pool): Likewise.
	(s390_mainpool_finish): Likewise.
	(s390_chunkify_start): Likewise.
	(s390_select_rtx_section): Likewise.
	* config/s390/s390.md ("doloop_si"): Likewise.
	("pool_start_31", "pool_end_31"): Likewise.
	("pool_start_64", "pool_end_64"): Likewise.
	("main_base_31_small", "main_base_31_large"): Likewise.
	("main_base_64"): Likewise.
	("reload_base_31", "reload_base_64"): Likewise.
	("*movsi_larl"): New insn.
	("cjump", "icjump"): Use long branches on zSeries machines.
	("jump"): Likewise.
	("call"): Use BRASL on zSeries machines.
	("call_value", "call_value_tls"): Likewise.
	("brasl", "bras", "basr_64", "basr_31", "bas_64", "bas_31"): Remove
	and replace by ...
	("*bras", "*brasl", "*basr") ... these new insns.
	("brasl_r", "bras_r", "basr_64_r", "basr_31_r", "bas_64_r",
	"bas_31_r"): Remove and replace by ...
	("*bras_r", "*brasl_r", "*basr_r") ... these new insns.
	("brasl_tls", "bras_tls", "basr_64_tls", "basr_31_tls",
	"bas_64_tls", "bas_31_tls"): Remove and replace by ...
	("*bras_tls", "*brasl_tls", "*basr_tls") ... these new insns.
	("*return_si", "*return_di"): Remove and replace by ...
	("*return"): ... this new insn.
	("rotlsi3"): Allow on zSeries machines.

	* config/s390/s390.c (legitimize_reload_constant_p): Use
	LL/LH type instructions in z/Architecture mode.
	* config/s390/s390.md ("*movsi_lli"): Likewise.
	("*andsi3_ni", "*andhi3_ni", "*andqi3_ni"): Likewise.
	("*iorsi3_ni", "*iorhi3_ni", "*iorqi3_ni"): Likewise.
	("*extendqisi2"): Use LB in z/Architecture mode.
	("*zero_extendqisi2_64", "*zero_extendqisi2_31"): Use LLGC in
	z/Architecture mode.
	("zero_extendqihi2", "*zero_extendqihi2_64", "*zero_extendqihi2_31"):
	Likewise.

	* config/s390/s390.md ("*tmdi_ext"): Allow in both 64-bit
	and 31-bit mode.
	("ptr_extend"): Allow only in 64-bit mode.

From-SVN: r70882