1 /* Definitions of target machine needed for option handling for GNU compiler, 2 for IBM RS/6000. 3 Copyright (C) 2010-2015 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 64 PROCESSOR_RS64A, 65 PROCESSOR_MPCCORE, 66 PROCESSOR_CELL, 67 PROCESSOR_PPCA2, 68 PROCESSOR_TITAN 69 }; 70 71 72 /* FP processor type. */ 73 enum fpu_type_t 74 { 75 FPU_NONE, /* No FPU */ 76 FPU_SF_LITE, /* Limited Single Precision FPU */ 77 FPU_DF_LITE, /* Limited Double Precision FPU */ 78 FPU_SF_FULL, /* Full Single Precision FPU */ 79 FPU_DF_FULL /* Full Double Single Precision FPU */ 80 }; 81 82 /* Types of costly dependences. */ 83 enum rs6000_dependence_cost 84 { 85 max_dep_latency = 1000, 86 no_dep_costly, 87 all_deps_costly, 88 true_store_to_load_dep_costly, 89 store_to_load_dep_costly 90 }; 91 92 /* Types of nop insertion schemes in sched target hook sched_finish. */ 93 enum rs6000_nop_insertion 94 { 95 sched_finish_regroup_exact = 1000, 96 sched_finish_pad_groups, 97 sched_finish_none 98 }; 99 100 /* Dispatch group termination caused by an insn. */ 101 enum group_termination 102 { 103 current_group, 104 previous_group 105 }; 106 107 /* Enumeration to give which calling sequence to use. */ 108 enum rs6000_abi { 109 ABI_NONE, 110 ABI_AIX, /* IBM's AIX, or Linux ELFv1 */ 111 ABI_ELFv2, /* Linux ELFv2 ABI */ 112 ABI_V4, /* System V.4/eabi */ 113 ABI_DARWIN /* Apple's Darwin (OS X kernel) */ 114 }; 115 116 /* Small data support types. */ 117 enum rs6000_sdata_type { 118 SDATA_NONE, /* No small data support. */ 119 SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */ 120 SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */ 121 SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */ 122 }; 123 124 /* Type of traceback to use. */ 125 enum rs6000_traceback_type { 126 traceback_default = 0, 127 traceback_none, 128 traceback_part, 129 traceback_full 130 }; 131 132 /* Code model for 64-bit linux. 133 small: 16-bit toc offsets. 134 medium: 32-bit toc offsets, static data and code within 2G of TOC pointer. 135 large: 32-bit toc offsets, no limit on static data and code. */ 136 enum rs6000_cmodel { 137 CMODEL_SMALL, 138 CMODEL_MEDIUM, 139 CMODEL_LARGE 140 }; 141 142 /* Describe which vector unit to use for a given machine mode. The 143 VECTOR_MEM_* and VECTOR_UNIT_* macros assume that Altivec, VSX, and 144 P8_VECTOR are contiguous. */ 145 enum rs6000_vector { 146 VECTOR_NONE, /* Type is not a vector or not supported */ 147 VECTOR_ALTIVEC, /* Use altivec for vector processing */ 148 VECTOR_VSX, /* Use VSX for vector processing */ 149 VECTOR_P8_VECTOR, /* Use ISA 2.07 VSX for vector processing */ 150 VECTOR_PAIRED, /* Use paired floating point for vectors */ 151 VECTOR_SPE, /* Use SPE for vector processing */ 152 VECTOR_OTHER /* Some other vector unit */ 153 }; 154 155 /* No enumeration is defined to index the -mcpu= values (entries in 156 processor_target_table), with the type int being used instead, but 157 we need to distinguish the special "native" value. */ 158 #define RS6000_CPU_OPTION_NATIVE -1 159 160 #endif 161