[thirdparty/gcc.git] / gcc / config / rs6000 / rs6000-opts.h

/* Definitions of target machine needed for option handling for GNU compiler,
   for IBM RS/6000.
   Copyright (C) 2010-2019 Free Software Foundation, Inc.
   Contributed by Michael Meissner (meissner@linux.vnet.ibm.com)

   This file is part of GCC.

   GCC is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published
   by the Free Software Foundation; either version 3, or (at your
   option) any later version.

   GCC is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.

   Under Section 7 of GPL version 3, you are granted additional
   permissions described in the GCC Runtime Library Exception, version
   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and
   a copy of the GCC Runtime Library Exception along with this program;
   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   <http://www.gnu.org/licenses/>.  */

#ifndef RS6000_OPTS_H
#define RS6000_OPTS_H

/* Processor type.  Order must match cpu attribute in MD file.  */
enum processor_type
 {
   PROCESSOR_PPC601,
   PROCESSOR_PPC603,
   PROCESSOR_PPC604,
   PROCESSOR_PPC604e,
   PROCESSOR_PPC620,
   PROCESSOR_PPC630,

   PROCESSOR_PPC750,
   PROCESSOR_PPC7400,
   PROCESSOR_PPC7450,

   PROCESSOR_PPC403,
   PROCESSOR_PPC405,
   PROCESSOR_PPC440,
   PROCESSOR_PPC476,

   PROCESSOR_PPC8540,
   PROCESSOR_PPC8548,
   PROCESSOR_PPCE300C2,
   PROCESSOR_PPCE300C3,
   PROCESSOR_PPCE500MC,
   PROCESSOR_PPCE500MC64,
   PROCESSOR_PPCE5500,
   PROCESSOR_PPCE6500,

   PROCESSOR_POWER4,
   PROCESSOR_POWER5,
   PROCESSOR_POWER6,
   PROCESSOR_POWER7,
   PROCESSOR_POWER8,
   PROCESSOR_POWER9,

   PROCESSOR_RS64A,
   PROCESSOR_MPCCORE,
   PROCESSOR_CELL,
   PROCESSOR_PPCA2,
   PROCESSOR_TITAN
};


/* Types of costly dependences.  */
enum rs6000_dependence_cost
{
  max_dep_latency = 1000,
  no_dep_costly,
  all_deps_costly,
  true_store_to_load_dep_costly,
  store_to_load_dep_costly
};

/* Types of nop insertion schemes in sched target hook sched_finish.  */
enum rs6000_nop_insertion
{
  sched_finish_regroup_exact = 1000,
  sched_finish_pad_groups,
  sched_finish_none
};

/* Dispatch group termination caused by an insn.  */
enum group_termination
{
  current_group,
  previous_group
};

/* Enumeration to give which calling sequence to use.  */
enum rs6000_abi {
  ABI_NONE,
  ABI_AIX,			/* IBM's AIX, or Linux ELFv1 */
  ABI_ELFv2,			/* Linux ELFv2 ABI */
  ABI_V4,			/* System V.4/eabi */
  ABI_DARWIN			/* Apple's Darwin (OS X kernel) */
};

/* Small data support types.  */
enum rs6000_sdata_type {
  SDATA_NONE,			/* No small data support.  */
  SDATA_DATA,			/* Just put data in .sbss/.sdata, don't use relocs.  */
  SDATA_SYSV,			/* Use r13 to point to .sdata/.sbss.  */
  SDATA_EABI			/* Use r13 like above, r2 points to .sdata2/.sbss2.  */
};

/* Type of traceback to use.  */
enum  rs6000_traceback_type {
  traceback_default = 0,
  traceback_none,
  traceback_part,
  traceback_full
};

/* Code model for 64-bit linux.
   small: 16-bit toc offsets.
   medium: 32-bit toc offsets, static data and code within 2G of TOC pointer.
   large: 32-bit toc offsets, no limit on static data and code.  */
enum rs6000_cmodel {
  CMODEL_SMALL,
  CMODEL_MEDIUM,
  CMODEL_LARGE
};

/* Describe which vector unit to use for a given machine mode.  The
   VECTOR_MEM_* and VECTOR_UNIT_* macros assume that Altivec, VSX, and
   P8_VECTOR are contiguous.  */
enum rs6000_vector {
  VECTOR_NONE,			/* Type is not  a vector or not supported */
  VECTOR_ALTIVEC,		/* Use altivec for vector processing */
  VECTOR_VSX,			/* Use VSX for vector processing */
  VECTOR_P8_VECTOR		/* Use ISA 2.07 VSX for vector processing */
};

/* Where to get the canary for the stack protector.  */
enum stack_protector_guard {
  SSP_TLS,			/* per-thread canary in TLS block */
  SSP_GLOBAL			/* global canary */
};

/* No enumeration is defined to index the -mcpu= values (entries in
   processor_target_table), with the type int being used instead, but
   we need to distinguish the special "native" value.  */
#define RS6000_CPU_OPTION_NATIVE -1

#endif
Commit	Line	Data
fd438373 MM	1	/* Definitions of target machine needed for option handling for GNU compiler,
fd438373 MM	2	for IBM RS/6000.
a5544970	3	Copyright (C) 2010-2019 Free Software Foundation, Inc.
fd438373 MM	4	Contributed by Michael Meissner (meissner@linux.vnet.ibm.com)
	5
	6	This file is part of GCC.
	7
	8	GCC is free software; you can redistribute it and/or modify it
	9	under the terms of the GNU General Public License as published
	10	by the Free Software Foundation; either version 3, or (at your
	11	option) any later version.
	12
	13	GCC is distributed in the hope that it will be useful, but WITHOUT
	14	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	15	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	16	License for more details.
	17
	18	Under Section 7 of GPL version 3, you are granted additional
	19	permissions described in the GCC Runtime Library Exception, version
	20	3.1, as published by the Free Software Foundation.
	21
	22	You should have received a copy of the GNU General Public License and
	23	a copy of the GCC Runtime Library Exception along with this program;
	24	see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	25	<http://www.gnu.org/licenses/>. */
	26
	27	#ifndef RS6000_OPTS_H
	28	#define RS6000_OPTS_H
	29
	30	/* Processor type. Order must match cpu attribute in MD file. */
	31	enum processor_type
	32	{
fd438373 MM	33	PROCESSOR_PPC601,
	34	PROCESSOR_PPC603,
	35	PROCESSOR_PPC604,
	36	PROCESSOR_PPC604e,
	37	PROCESSOR_PPC620,
	38	PROCESSOR_PPC630,
44626634	39
fd438373 MM	40	PROCESSOR_PPC750,
	41	PROCESSOR_PPC7400,
	42	PROCESSOR_PPC7450,
44626634 SB	43
	44	PROCESSOR_PPC403,
	45	PROCESSOR_PPC405,
	46	PROCESSOR_PPC440,
	47	PROCESSOR_PPC476,
	48
fd438373	49	PROCESSOR_PPC8540,
a7c6c6d6	50	PROCESSOR_PPC8548,
fd438373 MM	51	PROCESSOR_PPCE300C2,
	52	PROCESSOR_PPCE300C3,
	53	PROCESSOR_PPCE500MC,
	54	PROCESSOR_PPCE500MC64,
683ed19e EW	55	PROCESSOR_PPCE5500,
683ed19e EW	56	PROCESSOR_PPCE6500,
44626634	57
fd438373 MM	58	PROCESSOR_POWER4,
	59	PROCESSOR_POWER5,
	60	PROCESSOR_POWER6,
	61	PROCESSOR_POWER7,
44626634	62	PROCESSOR_POWER8,
d1f0d376	63	PROCESSOR_POWER9,
44626634 SB	64
	65	PROCESSOR_RS64A,
	66	PROCESSOR_MPCCORE,
fd438373 MM	67	PROCESSOR_CELL,
fd438373 MM	68	PROCESSOR_PPCA2,
44626634	69	PROCESSOR_TITAN
fd438373 MM	70	};
fd438373 MM	71
44626634	72
fd438373 MM	73	/* Types of costly dependences. */
	74	enum rs6000_dependence_cost
	75	{
	76	max_dep_latency = 1000,
	77	no_dep_costly,
	78	all_deps_costly,
	79	true_store_to_load_dep_costly,
	80	store_to_load_dep_costly
	81	};
	82
	83	/* Types of nop insertion schemes in sched target hook sched_finish. */
	84	enum rs6000_nop_insertion
	85	{
	86	sched_finish_regroup_exact = 1000,
	87	sched_finish_pad_groups,
	88	sched_finish_none
	89	};
	90
	91	/* Dispatch group termination caused by an insn. */
	92	enum group_termination
	93	{
	94	current_group,
	95	previous_group
	96	};
	97
	98	/* Enumeration to give which calling sequence to use. */
	99	enum rs6000_abi {
	100	ABI_NONE,
b54214fe UW	101	ABI_AIX, /* IBM's AIX, or Linux ELFv1 */
b54214fe UW	102	ABI_ELFv2, /* Linux ELFv2 ABI */
fd438373 MM	103	ABI_V4, /* System V.4/eabi */
	104	ABI_DARWIN /* Apple's Darwin (OS X kernel) */
	105	};
	106
	107	/* Small data support types. */
	108	enum rs6000_sdata_type {
	109	SDATA_NONE, /* No small data support. */
	110	SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */
	111	SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */
	112	SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */
	113	};
	114
	115	/* Type of traceback to use. */
	116	enum rs6000_traceback_type {
	117	traceback_default = 0,
	118	traceback_none,
	119	traceback_part,
	120	traceback_full
	121	};
	122
	123	/* Code model for 64-bit linux.
	124	small: 16-bit toc offsets.
	125	medium: 32-bit toc offsets, static data and code within 2G of TOC pointer.
	126	large: 32-bit toc offsets, no limit on static data and code. */
	127	enum rs6000_cmodel {
	128	CMODEL_SMALL,
	129	CMODEL_MEDIUM,
	130	CMODEL_LARGE
	131	};
	132
f62511da MM	133	/* Describe which vector unit to use for a given machine mode. The
	134	VECTOR_MEM_* and VECTOR_UNIT_* macros assume that Altivec, VSX, and
	135	P8_VECTOR are contiguous. */
fd438373 MM	136	enum rs6000_vector {
	137	VECTOR_NONE, /* Type is not a vector or not supported */
	138	VECTOR_ALTIVEC, /* Use altivec for vector processing */
	139	VECTOR_VSX, /* Use VSX for vector processing */
fbcf65f9	140	VECTOR_P8_VECTOR /* Use ISA 2.07 VSX for vector processing */
fd438373 MM	141	};
fd438373 MM	142
1b3254e4 SB	143	/* Where to get the canary for the stack protector. */
	144	enum stack_protector_guard {
	145	SSP_TLS, /* per-thread canary in TLS block */
	146	SSP_GLOBAL /* global canary */
	147	};
	148
f10d3ac9 JM	149	/* No enumeration is defined to index the -mcpu= values (entries in
	150	processor_target_table), with the type int being used instead, but
	151	we need to distinguish the special "native" value. */
	152	#define RS6000_CPU_OPTION_NATIVE -1
	153
fd438373	154	#endif