gcc/config/powerpcspe/powerpcspe-opts.h

   1 /* Definitions of target machine needed for option handling for GNU compiler,
   2    for IBM RS/6000.
   3    Copyright (C) 2010-2018 Free Software Foundation, Inc.
   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  {
  33    PROCESSOR_PPC601,
  34    PROCESSOR_PPC603,
  35    PROCESSOR_PPC604,
  36    PROCESSOR_PPC604e,
  37    PROCESSOR_PPC620,
  38    PROCESSOR_PPC630,
  39
  40    PROCESSOR_PPC750,
  41    PROCESSOR_PPC7400,
  42    PROCESSOR_PPC7450,
  43
  44    PROCESSOR_PPC403,
  45    PROCESSOR_PPC405,
  46    PROCESSOR_PPC440,
  47    PROCESSOR_PPC476,
  48
  49    PROCESSOR_PPC8540,
  50    PROCESSOR_PPC8548,
  51    PROCESSOR_PPCE300C2,
  52    PROCESSOR_PPCE300C3,
  53    PROCESSOR_PPCE500MC,
  54    PROCESSOR_PPCE500MC64,
  55    PROCESSOR_PPCE5500,
  56    PROCESSOR_PPCE6500,
  57
  58    PROCESSOR_POWER4,
  59    PROCESSOR_POWER5,
  60    PROCESSOR_POWER6,
  61    PROCESSOR_POWER7,
  62    PROCESSOR_POWER8,
  63    PROCESSOR_POWER9,
  64
  65    PROCESSOR_RS64A,
  66    PROCESSOR_MPCCORE,
  67    PROCESSOR_CELL,
  68    PROCESSOR_PPCA2,
  69    PROCESSOR_TITAN
  70 };
  71
  72
  73 /* FP processor type.  */
  74 enum fpu_type_t
  75 {
  76   FPU_NONE,                     /* No FPU */
  77   FPU_SF_LITE,                  /* Limited Single Precision FPU */
  78   FPU_DF_LITE,                  /* Limited Double Precision FPU */
  79   FPU_SF_FULL,                  /* Full Single Precision FPU */
  80   FPU_DF_FULL                   /* Full Double Single Precision FPU */
  81 };
  82
  83
  84 /* Types of costly dependences.  */
  85 enum rs6000_dependence_cost
  86 {
  87   max_dep_latency = 1000,
  88   no_dep_costly,
  89   all_deps_costly,
  90   true_store_to_load_dep_costly,
  91   store_to_load_dep_costly
  92 };
  93
  94 /* Types of nop insertion schemes in sched target hook sched_finish.  */
  95 enum rs6000_nop_insertion
  96 {
  97   sched_finish_regroup_exact = 1000,
  98   sched_finish_pad_groups,
  99   sched_finish_none
 100 };
 101
 102 /* Dispatch group termination caused by an insn.  */
 103 enum group_termination
 104 {
 105   current_group,
 106   previous_group
 107 };
 108
 109 /* Enumeration to give which calling sequence to use.  */
 110 enum rs6000_abi {
 111   ABI_NONE,
 112   ABI_AIX,                      /* IBM's AIX, or Linux ELFv1 */
 113   ABI_ELFv2,                    /* Linux ELFv2 ABI */
 114   ABI_V4,                       /* System V.4/eabi */
 115   ABI_DARWIN                    /* Apple's Darwin (OS X kernel) */
 116 };
 117
 118 /* Small data support types.  */
 119 enum rs6000_sdata_type {
 120   SDATA_NONE,                   /* No small data support.  */
 121   SDATA_DATA,                   /* Just put data in .sbss/.sdata, don't use relocs.  */
 122   SDATA_SYSV,                   /* Use r13 to point to .sdata/.sbss.  */
 123   SDATA_EABI                    /* Use r13 like above, r2 points to .sdata2/.sbss2.  */
 124 };
 125
 126 /* Type of traceback to use.  */
 127 enum  rs6000_traceback_type {
 128   traceback_default = 0,
 129   traceback_none,
 130   traceback_part,
 131   traceback_full
 132 };
 133
 134 /* Code model for 64-bit linux.
 135    small: 16-bit toc offsets.
 136    medium: 32-bit toc offsets, static data and code within 2G of TOC pointer.
 137    large: 32-bit toc offsets, no limit on static data and code.  */
 138 enum rs6000_cmodel {
 139   CMODEL_SMALL,
 140   CMODEL_MEDIUM,
 141   CMODEL_LARGE
 142 };
 143
 144 /* Describe which vector unit to use for a given machine mode.  The
 145    VECTOR_MEM_* and VECTOR_UNIT_* macros assume that Altivec, VSX, and
 146    P8_VECTOR are contiguous.  */
 147 enum rs6000_vector {
 148   VECTOR_NONE,                  /* Type is not  a vector or not supported */
 149   VECTOR_ALTIVEC,               /* Use altivec for vector processing */
 150   VECTOR_VSX,                   /* Use VSX for vector processing */
 151   VECTOR_P8_VECTOR,             /* Use ISA 2.07 VSX for vector processing */
 152   VECTOR_PAIRED,                /* Use paired floating point for vectors */
 153   VECTOR_SPE,                   /* Use SPE for vector processing */
 154   VECTOR_OTHER                  /* Some other vector unit */
 155 };
 156
 157 /* Where to get the canary for the stack protector.  */
 158 enum stack_protector_guard {
 159   SSP_TLS,                      /* per-thread canary in TLS block */
 160   SSP_GLOBAL                    /* global canary */
 161 };
 162
 163 /* No enumeration is defined to index the -mcpu= values (entries in
 164    processor_target_table), with the type int being used instead, but
 165    we need to distinguish the special "native" value.  */
 166 #define RS6000_CPU_OPTION_NATIVE -1
 167
 168 #endif