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/* Definitions of target machine needed for option handling for GNU compiler,
for IBM RS/6000.
Copyright (C) 2010-2024 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_POWER10,
PROCESSOR_POWER11,
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
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