gcc/config/rs6000/rs6000-opts.h

   1 /* Definitions of target machine needed for option handling for GNU compiler,
   2    for IBM RS/6000.
   3    Copyright (C) 2010, 2011
   4    Free Software Foundation, Inc.
   5    Contributed by Michael Meissner (meissner@linux.vnet.ibm.com)
   6
   7    This file is part of GCC.
   8
   9    GCC is free software; you can redistribute it and/or modify it
  10    under the terms of the GNU General Public License as published
  11    by the Free Software Foundation; either version 3, or (at your
  12    option) any later version.
  13
  14    GCC is distributed in the hope that it will be useful, but WITHOUT
  15    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  17    License for more details.
  18
  19    Under Section 7 of GPL version 3, you are granted additional
  20    permissions described in the GCC Runtime Library Exception, version
  21    3.1, as published by the Free Software Foundation.
  22
  23    You should have received a copy of the GNU General Public License and
  24    a copy of the GCC Runtime Library Exception along with this program;
  25    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  26    <http://www.gnu.org/licenses/>.  */
  27
  28 #ifndef RS6000_OPTS_H
  29 #define RS6000_OPTS_H
  30
  31 /* Processor type.  Order must match cpu attribute in MD file.  */
  32 enum processor_type
  33  {
  34    PROCESSOR_RIOS1,
  35    PROCESSOR_RIOS2,
  36    PROCESSOR_RS64A,
  37    PROCESSOR_MPCCORE,
  38    PROCESSOR_PPC403,
  39    PROCESSOR_PPC405,
  40    PROCESSOR_PPC440,
  41    PROCESSOR_PPC476,
  42    PROCESSOR_PPC601,
  43    PROCESSOR_PPC603,
  44    PROCESSOR_PPC604,
  45    PROCESSOR_PPC604e,
  46    PROCESSOR_PPC620,
  47    PROCESSOR_PPC630,
  48    PROCESSOR_PPC750,
  49    PROCESSOR_PPC7400,
  50    PROCESSOR_PPC7450,
  51    PROCESSOR_PPC8540,
  52    PROCESSOR_PPCE300C2,
  53    PROCESSOR_PPCE300C3,
  54    PROCESSOR_PPCE500MC,
  55    PROCESSOR_PPCE500MC64,
  56    PROCESSOR_POWER4,
  57    PROCESSOR_POWER5,
  58    PROCESSOR_POWER6,
  59    PROCESSOR_POWER7,
  60    PROCESSOR_CELL,
  61    PROCESSOR_PPCA2,
  62    PROCESSOR_TITAN
  63 };
  64
  65 /* FP processor type.  */
  66 enum fpu_type_t
  67 {
  68   FPU_NONE,                     /* No FPU */
  69   FPU_SF_LITE,                  /* Limited Single Precision FPU */
  70   FPU_DF_LITE,                  /* Limited Double Precision FPU */
  71   FPU_SF_FULL,                  /* Full Single Precision FPU */
  72   FPU_DF_FULL                   /* Full Double Single Precision FPU */
  73 };
  74
  75 /* Types of costly dependences.  */
  76 enum rs6000_dependence_cost
  77 {
  78   max_dep_latency = 1000,
  79   no_dep_costly,
  80   all_deps_costly,
  81   true_store_to_load_dep_costly,
  82   store_to_load_dep_costly
  83 };
  84
  85 /* Types of nop insertion schemes in sched target hook sched_finish.  */
  86 enum rs6000_nop_insertion
  87 {
  88   sched_finish_regroup_exact = 1000,
  89   sched_finish_pad_groups,
  90   sched_finish_none
  91 };
  92
  93 /* Dispatch group termination caused by an insn.  */
  94 enum group_termination
  95 {
  96   current_group,
  97   previous_group
  98 };
  99
 100 /* Enumeration to give which calling sequence to use.  */
 101 enum rs6000_abi {
 102   ABI_NONE,
 103   ABI_AIX,                      /* IBM's AIX */
 104   ABI_V4,                       /* System V.4/eabi */
 105   ABI_DARWIN                    /* Apple's Darwin (OS X kernel) */
 106 };
 107
 108 /* Small data support types.  */
 109 enum rs6000_sdata_type {
 110   SDATA_NONE,                   /* No small data support.  */
 111   SDATA_DATA,                   /* Just put data in .sbss/.sdata, don't use relocs.  */
 112   SDATA_SYSV,                   /* Use r13 to point to .sdata/.sbss.  */
 113   SDATA_EABI                    /* Use r13 like above, r2 points to .sdata2/.sbss2.  */
 114 };
 115
 116 /* Type of traceback to use.  */
 117 enum  rs6000_traceback_type {
 118   traceback_default = 0,
 119   traceback_none,
 120   traceback_part,
 121   traceback_full
 122 };
 123
 124 /* Code model for 64-bit linux.
 125    small: 16-bit toc offsets.
 126    medium: 32-bit toc offsets, static data and code within 2G of TOC pointer.
 127    large: 32-bit toc offsets, no limit on static data and code.  */
 128 enum rs6000_cmodel {
 129   CMODEL_SMALL,
 130   CMODEL_MEDIUM,
 131   CMODEL_LARGE
 132 };
 133
 134 /* Describe which vector unit to use for a given machine mode.  */
 135 enum rs6000_vector {
 136   VECTOR_NONE,                  /* Type is not  a vector or not supported */
 137   VECTOR_ALTIVEC,               /* Use altivec for vector processing */
 138   VECTOR_VSX,                   /* Use VSX for vector processing */
 139   VECTOR_PAIRED,                /* Use paired floating point for vectors */
 140   VECTOR_SPE,                   /* Use SPE for vector processing */
 141   VECTOR_OTHER                  /* Some other vector unit */
 142 };
 143
 144 /* No enumeration is defined to index the -mcpu= values (entries in
 145    processor_target_table), with the type int being used instead, but
 146    we need to distinguish the special "native" value.  */
 147 #define RS6000_CPU_OPTION_NATIVE -1
 148
 149 #endif