rs6000.opt (-mpower9-fusion): Add new switches for ISA 3.0 (power9).

2015-11-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.opt (-mpower9-fusion): Add new switches for
	ISA 3.0 (power9).
	(-mpower9-vector): Likewise.
	(-mpower9-dform): Likewise.
	(-mpower9-minmax): Likewise.
	(-mtoc-fusion): Likewise.
	(-mmodulo): Likewise.
	(-mfloat128-hardware): Likewise.

	* config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add option
	mask for ISA 3.0 (power9).
	(POWERPC_MASKS): Add new ISA 3.0 switches.
	(power9 cpu): Add power9 cpu.

	* config/rs6000/rs6000.h (ASM_CPU_POWER9_SPEC): Add support for
	power9.
	(ASM_CPU_SPEC): Likewise.
	(EXTRA_SPECS): Likewise.

	* config/rs6000/rs6000-opts.h (enum processor_type): Add
	PROCESSOR_POWER9.

	* config/rs6000/rs6000.c (power9_cost): Initial cost setup for
	power9.
	(rs6000_debug_reg_global): Add support for power9 fusion.
	(rs6000_setup_reg_addr_masks): Cache mode size.
	(rs6000_option_override_internal): Until real power9 tuning is
	added, use -mtune=power8 for -mcpu=power9.
	(rs6000_setup_reg_addr_masks): Do not allow pre-increment,
	pre-decrement, or pre-modify on SFmode/DFmode if we allow the use
	of Altivec registers.
	(rs6000_option_override_internal): Add support for ISA 3.0
	switches.
	(rs6000_loop_align): Add support for power9 cpu.
	(rs6000_file_start): Likewise.
	(rs6000_adjust_cost): Likewise.
	(rs6000_issue_rate): Likewise.
	(insn_must_be_first_in_group): Likewise.
	(insn_must_be_last_in_group): Likewise.
	(force_new_group): Likewise.
	(rs6000_register_move_cost): Likewise.
	(rs6000_opt_masks): Likewise.

	* config/rs6000/rs6000.md (cpu attribute): Add power9.
	* config/rs6000/rs6000-tables.opt: Regenerate.

	* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
	_ARCH_PWR9 if power9 support is available.

	* config/rs6000/aix61.h (ASM_CPU_SPEC): Add power9.
	* config/rs6000/aix53.h (ASM_CPU_SPEC): Likewise.

	* configure.ac: Determine if the assembler supports the ISA 3.0
	instructions.
	* config.in (HAVE_AS_POWER9): Likewise.
	* configure: Regenerate.

	* doc/invoke.texi (RS/6000 and PowerPC Options): Document ISA 3.0
	switches.

From-SVN: r230031

1 files changed, 28 insertions, 0 deletions

diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
index b9e4b7d..61e3c8a 100644
--- a/gcc/config/rs6000/rs6000.opt
+++ b/gcc/config/rs6000/rs6000.opt
@@ -601,6 +601,34 @@ moptimize-swaps
 Target Undocumented Var(rs6000_optimize_swaps) Init(1) Save
 Analyze and remove doubleword swaps from VSX computations.
 
+mpower9-fusion
+Target Report Mask(P9_FUSION) Var(rs6000_isa_flags)
+Fuse certain operations together for better performance on power9.
+
+mpower9-vector
+Target Report Mask(P9_VECTOR) Var(rs6000_isa_flags)
+Use/do not use vector and scalar instructions added in ISA 3.0.
+
+mpower9-dform
+Target Undocumented Mask(P9_DFORM) Var(rs6000_isa_flags)
+Use/do not use vector and scalar instructions added in ISA 3.0.
+
+mpower9-minmax
+Target Undocumented Mask(P9_MINMAX) Var(rs6000_isa_flags)
+Use/do not use the new min/max instructions defined in ISA 3.0.
+
+mtoc-fusion
+Target Undocumented Mask(TOC_FUSION) Var(rs6000_isa_flags)
+Fuse medium/large code model toc references with the memory instruction.
+
+mmodulo
+Target Report Mask(MODULO) Var(rs6000_isa_flags)
+Generate the integer modulo instructions.
+
 mfloat128
 Target Report Mask(FLOAT128) Var(rs6000_isa_flags)
 Enable/disable IEEE 128-bit floating point via the __float128 keyword.
+
+mfloat128-hardware
+Target Report Mask(FLOAT128_HW) Var(rs6000_isa_flags)
+Enable/disable using IEEE 128-bit floating point instructions.