Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/moxie/moxie.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 22 Mar 2011 17:18:12 +0900 |
parents | b7f97abdc517 |
children | 04ced10e8804 |
rev | line source |
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1 /* Target Definitions for moxie. |
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2 Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. |
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3 Contributed by Anthony Green. |
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4 |
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5 This file is part of GCC. |
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6 |
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7 GCC is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published |
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9 by the Free Software Foundation; either version 3, or (at your |
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10 option) any later version. |
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11 |
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12 GCC is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
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15 License for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with GCC; see the file COPYING3. If not see |
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19 <http://www.gnu.org/licenses/>. */ |
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20 |
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21 #ifndef GCC_MOXIE_H |
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22 #define GCC_MOXIE_H |
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23 |
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24 #undef STARTFILE_SPEC |
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25 #define STARTFILE_SPEC "crt0%O%s crti.o%s crtbegin.o%s" |
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26 |
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27 /* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own |
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28 magical crtend.o file (see crtstuff.c) which provides part of the |
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29 support for getting C++ file-scope static object constructed before |
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30 entering `main', followed by the normal svr3/svr4 "finalizer" file, |
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31 which is either `gcrtn.o' or `crtn.o'. */ |
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32 |
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33 #undef ENDFILE_SPEC |
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34 #define ENDFILE_SPEC "crtend.o%s crtn.o%s" |
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35 |
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36 /* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default |
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37 standard C library (unless we are building a shared library) and |
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38 the simulator BSP code. */ |
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39 |
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40 #undef LIB_SPEC |
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41 #define LIB_SPEC "%{!shared:%{!symbolic:-lc}}" |
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42 |
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43 #undef LINK_SPEC |
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44 #define LINK_SPEC "%{h*} %{v:-V} \ |
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45 %{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic}" |
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46 |
55
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47 /* Layout of Source Language Data Types */ |
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48 |
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49 #define INT_TYPE_SIZE 32 |
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50 #define SHORT_TYPE_SIZE 16 |
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51 #define LONG_TYPE_SIZE 32 |
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52 #define LONG_LONG_TYPE_SIZE 64 |
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53 |
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54 #define FLOAT_TYPE_SIZE 32 |
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55 #define DOUBLE_TYPE_SIZE 64 |
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56 #define LONG_DOUBLE_TYPE_SIZE 64 |
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57 |
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58 #define DEFAULT_SIGNED_CHAR 1 |
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59 |
67
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60 #undef SIZE_TYPE |
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61 #define SIZE_TYPE "unsigned int" |
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62 |
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63 #undef PTRDIFF_TYPE |
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64 #define PTRDIFF_TYPE "int" |
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65 |
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66 #undef WCHAR_TYPE |
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67 #define WCHAR_TYPE "long int" |
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68 |
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69 #undef WCHAR_TYPE_SIZE |
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70 #define WCHAR_TYPE_SIZE BITS_PER_WORD |
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71 |
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72 /* Registers... |
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73 |
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74 $fp - frame pointer |
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75 $sp - stack pointer |
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76 $r0 - general purpose 32-bit register. |
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77 $r1 - general purpose 32-bit register. |
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78 $r2 - general purpose 32-bit register. |
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79 $r3 - general purpose 32-bit register. |
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80 $r4 - general purpose 32-bit register. |
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81 $r5 - general purpose 32-bit register. |
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82 $r6 - general purpose 32-bit register. |
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83 $r7 - general purpose 32-bit register. |
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84 $r8 - general purpose 32-bit register. |
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85 $r9 - general purpose 32-bit register. |
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86 $r10 - general purpose 32-bit register. |
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87 $r11 - general purpose 32-bit register. |
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88 $r12 - general purpose 32-bit register. |
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89 $r13 - reserved for execution environment. |
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90 |
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91 Special Registers... |
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92 |
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93 $pc - 32-bit program counter. |
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94 |
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95 */ |
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96 |
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97 #define REGISTER_NAMES { \ |
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98 "$fp", "$sp", "$r0", "$r1", \ |
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99 "$r2", "$r3", "$r4", "$r5", \ |
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100 "$r6", "$r7", "$r8", "$r9", \ |
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101 "$r10", "$r11", "$r12", "$r13", \ |
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102 "?fp", "?ap", "$pc", "?cc" } |
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103 |
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104 #define MOXIE_FP 0 |
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105 #define MOXIE_SP 1 |
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106 #define MOXIE_R0 2 |
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107 #define MOXIE_R1 3 |
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108 #define MOXIE_R2 4 |
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109 #define MOXIE_R3 5 |
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110 #define MOXIE_R4 6 |
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111 #define MOXIE_R5 7 |
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112 #define MOXIE_R6 8 |
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113 #define MOXIE_R7 9 |
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114 #define MOXIE_R8 10 |
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115 #define MOXIE_R9 11 |
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116 #define MOXIE_R10 12 |
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117 #define MOXIE_R11 13 |
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118 #define MOXIE_R12 14 |
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119 #define MOXIE_R13 15 |
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120 #define MOXIE_QFP 16 |
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121 #define MOXIE_QAP 17 |
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122 #define MOXIE_PC 18 |
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123 #define MOXIE_CC 19 |
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124 |
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125 #define FIRST_PSEUDO_REGISTER 20 |
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126 |
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127 enum reg_class |
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128 { |
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129 NO_REGS, |
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130 GENERAL_REGS, |
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131 SPECIAL_REGS, |
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132 CC_REGS, |
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133 ALL_REGS, |
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134 LIM_REG_CLASSES |
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135 }; |
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136 |
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137 |
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138 /* The following macro defines cover classes for Integrated Register |
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139 Allocator. Cover classes is a set of non-intersected register |
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140 classes covering all hard registers used for register allocation |
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141 purpose. Any move between two registers of a cover class should be |
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142 cheaper than load or store of the registers. The macro value is |
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143 array of register classes with LIM_REG_CLASSES used as the end |
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144 marker. */ |
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145 #define IRA_COVER_CLASSES { GENERAL_REGS, LIM_REG_CLASSES } |
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146 |
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147 #define REG_CLASS_CONTENTS \ |
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148 { { 0x00000000 }, /* Empty */ \ |
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149 { 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \ |
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150 { 0x00040000 }, /* $pc */ \ |
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151 { 0x00080000 }, /* ?cc */ \ |
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152 { 0x000FFFFF } /* All registers */ \ |
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153 } |
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154 |
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155 #define N_REG_CLASSES LIM_REG_CLASSES |
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156 |
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157 #define REG_CLASS_NAMES {\ |
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158 "NO_REGS", \ |
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159 "GENERAL_REGS", \ |
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160 "SPECIAL_REGS", \ |
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161 "CC_REGS", \ |
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162 "ALL_REGS" } |
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163 |
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164 #define FIXED_REGISTERS { 1, 1, 0, 0, \ |
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165 0, 0, 0, 0, \ |
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166 0, 0, 0, 0, \ |
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167 0, 0, 0, 1, \ |
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168 1, 1, 1, 1 } |
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169 |
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170 #define CALL_USED_REGISTERS { 1, 1, 1, 1, \ |
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171 1, 1, 1, 1, \ |
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172 0, 0, 0, 0, \ |
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173 0, 0, 1, 1, \ |
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174 1, 1, 1, 1 } |
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175 |
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176 /* We can't copy to or from our CC register. */ |
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177 #define AVOID_CCMODE_COPIES 1 |
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178 |
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179 /* A C expression that is nonzero if it is permissible to store a |
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180 value of mode MODE in hard register number REGNO (or in several |
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181 registers starting with that one). All gstore registers are |
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182 equivalent, so we can set this to 1. */ |
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183 #define HARD_REGNO_MODE_OK(R,M) 1 |
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184 |
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185 /* A C expression whose value is a register class containing hard |
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186 register REGNO. */ |
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187 #define REGNO_REG_CLASS(R) ((R < MOXIE_PC) ? GENERAL_REGS : \ |
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188 (R == MOXIE_CC ? CC_REGS : SPECIAL_REGS)) |
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189 |
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190 /* A C expression for the number of consecutive hard registers, |
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191 starting at register number REGNO, required to hold a value of mode |
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192 MODE. */ |
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193 #define HARD_REGNO_NREGS(REGNO, MODE) \ |
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194 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \ |
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195 / UNITS_PER_WORD) |
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196 |
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197 /* A C expression that is nonzero if a value of mode MODE1 is |
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198 accessible in mode MODE2 without copying. */ |
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199 #define MODES_TIEABLE_P(MODE1, MODE2) 1 |
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200 |
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201 /* A C expression for the maximum number of consecutive registers of |
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202 class CLASS needed to hold a value of mode MODE. */ |
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203 #define CLASS_MAX_NREGS(CLASS, MODE) \ |
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204 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) |
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205 |
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206 /* The Overall Framework of an Assembler File */ |
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207 |
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208 #undef ASM_SPEC |
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209 #define ASM_COMMENT_START "#" |
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210 #define ASM_APP_ON "" |
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211 #define ASM_APP_OFF "" |
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212 |
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213 #define FILE_ASM_OP "\t.file\n" |
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214 |
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215 /* Switch to the text or data segment. */ |
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216 #define TEXT_SECTION_ASM_OP "\t.text" |
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217 #define DATA_SECTION_ASM_OP "\t.data" |
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218 |
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219 /* Assembler Commands for Alignment */ |
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220 |
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221 #define ASM_OUTPUT_ALIGN(STREAM,POWER) \ |
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222 fprintf (STREAM, "\t.p2align\t%d\n", POWER); |
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223 |
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224 /* A C compound statement to output to stdio stream STREAM the |
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225 assembler syntax for an instruction operand X. */ |
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226 #define PRINT_OPERAND(STREAM, X, CODE) moxie_print_operand (STREAM, X, CODE) |
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227 |
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228 #define PRINT_OPERAND_ADDRESS(STREAM ,X) moxie_print_operand_address (STREAM, X) |
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229 |
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230 /* Output and Generation of Labels */ |
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231 |
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232 #define GLOBAL_ASM_OP "\t.global\t" |
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233 |
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234 /* Passing Arguments in Registers */ |
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235 |
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236 /* A C type for declaring a variable that is used as the first |
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237 argument of `FUNCTION_ARG' and other related values. */ |
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238 #define CUMULATIVE_ARGS unsigned int |
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239 |
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240 /* If defined, the maximum amount of space required for outgoing arguments |
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241 will be computed and placed into the variable |
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242 `current_function_outgoing_args_size'. No space will be pushed |
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243 onto the stack for each call; instead, the function prologue should |
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244 increase the stack frame size by this amount. */ |
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245 #define ACCUMULATE_OUTGOING_ARGS 1 |
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246 |
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247 /* A C statement (sans semicolon) for initializing the variable CUM |
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248 for the state at the beginning of the argument list. |
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249 For moxie, the first arg is passed in register 2 (aka $r0). */ |
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250 #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) \ |
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251 (CUM = MOXIE_R0) |
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252 |
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253 /* How Scalar Function Values Are Returned */ |
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254 |
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255 /* STACK AND CALLING */ |
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256 |
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257 /* Define this macro if pushing a word onto the stack moves the stack |
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258 pointer to a smaller address. */ |
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259 #define STACK_GROWS_DOWNWARD |
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260 |
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261 #define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0 |
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262 |
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263 /* Offset from the frame pointer to the first local variable slot to |
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264 be allocated. */ |
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265 #define STARTING_FRAME_OFFSET 0 |
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266 |
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267 /* Define this if the above stack space is to be considered part of the |
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268 space allocated by the caller. */ |
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269 #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 |
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270 #define STACK_PARMS_IN_REG_PARM_AREA |
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271 |
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272 /* Define this if it is the responsibility of the caller to allocate |
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273 the area reserved for arguments passed in registers. */ |
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274 #define REG_PARM_STACK_SPACE(FNDECL) (6 * UNITS_PER_WORD) |
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275 |
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276 /* Offset from the argument pointer register to the first argument's |
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277 address. On some machines it may depend on the data type of the |
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278 function. */ |
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279 #define FIRST_PARM_OFFSET(F) 12 |
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280 |
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281 /* Define this macro to nonzero value if the addresses of local variable slots |
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282 are at negative offsets from the frame pointer. */ |
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283 #define FRAME_GROWS_DOWNWARD 1 |
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284 |
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285 /* Define this macro as a C expression that is nonzero for registers that are |
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286 used by the epilogue or the return pattern. The stack and frame |
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287 pointer registers are already assumed to be used as needed. */ |
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288 #define EPILOGUE_USES(R) (R == MOXIE_R5) |
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289 |
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290 /* A C expression whose value is RTL representing the location of the |
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291 incoming return address at the beginning of any function, before |
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292 the prologue. */ |
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293 #define INCOMING_RETURN_ADDR_RTX \ |
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294 gen_frame_mem (Pmode, \ |
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295 plus_constant (stack_pointer_rtx, UNITS_PER_WORD)) |
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296 |
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297 /* Describe how we implement __builtin_eh_return. */ |
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298 #define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N+2) : INVALID_REGNUM) |
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299 |
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300 /* Store the return handler into the call frame. */ |
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301 #define EH_RETURN_HANDLER_RTX \ |
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302 gen_frame_mem (Pmode, \ |
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303 plus_constant (frame_pointer_rtx, UNITS_PER_WORD)) |
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304 |
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305 /* Storage Layout */ |
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306 |
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307 #define BITS_BIG_ENDIAN 0 |
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308 #define BYTES_BIG_ENDIAN 1 |
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309 #define WORDS_BIG_ENDIAN 1 |
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310 |
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311 /* Alignment required for a function entry point, in bits. */ |
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312 #define FUNCTION_BOUNDARY 16 |
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313 |
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314 /* Define this macro as a C expression which is nonzero if accessing |
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315 less than a word of memory (i.e. a `char' or a `short') is no |
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316 faster than accessing a word of memory. */ |
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317 #define SLOW_BYTE_ACCESS 1 |
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318 |
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319 /* Number of storage units in a word; normally the size of a |
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320 general-purpose register, a power of two from 1 or 8. */ |
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321 #define UNITS_PER_WORD 4 |
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322 |
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323 /* Define this macro to the minimum alignment enforced by hardware |
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324 for the stack pointer on this machine. The definition is a C |
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325 expression for the desired alignment (measured in bits). */ |
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326 #define STACK_BOUNDARY 32 |
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327 |
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328 /* Normal alignment required for function parameters on the stack, in |
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329 bits. All stack parameters receive at least this much alignment |
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330 regardless of data type. */ |
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331 #define PARM_BOUNDARY 32 |
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332 |
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333 /* Alignment of field after `int : 0' in a structure. */ |
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334 #define EMPTY_FIELD_BOUNDARY 32 |
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335 |
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336 /* No data type wants to be aligned rounder than this. */ |
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337 #define BIGGEST_ALIGNMENT 32 |
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338 |
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339 /* The best alignment to use in cases where we have a choice. */ |
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340 #define FASTEST_ALIGNMENT 32 |
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341 |
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342 /* Every structures size must be a multiple of 8 bits. */ |
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343 #define STRUCTURE_SIZE_BOUNDARY 8 |
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344 |
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345 /* Look at the fundamental type that is used for a bit-field and use |
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346 that to impose alignment on the enclosing structure. |
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347 struct s {int a:8}; should have same alignment as "int", not "char". */ |
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348 #define PCC_BITFIELD_TYPE_MATTERS 1 |
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349 |
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350 /* Largest integer machine mode for structures. If undefined, the default |
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351 is GET_MODE_SIZE(DImode). */ |
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352 #define MAX_FIXED_MODE_SIZE 32 |
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353 |
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354 /* Make strings word-aligned so strcpy from constants will be faster. */ |
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355 #define CONSTANT_ALIGNMENT(EXP, ALIGN) \ |
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356 ((TREE_CODE (EXP) == STRING_CST \ |
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357 && (ALIGN) < FASTEST_ALIGNMENT) \ |
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358 ? FASTEST_ALIGNMENT : (ALIGN)) |
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359 |
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360 /* Make arrays of chars word-aligned for the same reasons. */ |
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361 #define DATA_ALIGNMENT(TYPE, ALIGN) \ |
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362 (TREE_CODE (TYPE) == ARRAY_TYPE \ |
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363 && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ |
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364 && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) |
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365 |
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366 /* Set this nonzero if move instructions will actually fail to work |
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367 when given unaligned data. */ |
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368 #define STRICT_ALIGNMENT 1 |
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369 |
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370 /* Generating Code for Profiling */ |
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371 #define FUNCTION_PROFILER(FILE,LABELNO) (abort (), 0) |
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372 |
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373 /* Trampolines for Nested Functions. */ |
63
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374 #define TRAMPOLINE_SIZE (2 + 6 + 6 + 2 + 2 + 6) |
55
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375 |
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376 /* Alignment required for trampolines, in bits. */ |
63
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377 #define TRAMPOLINE_ALIGNMENT 32 |
55
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378 |
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379 /* An alias for the machine mode for pointers. */ |
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380 #define Pmode SImode |
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381 |
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382 /* An alias for the machine mode used for memory references to |
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383 functions being called, in `call' RTL expressions. */ |
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384 #define FUNCTION_MODE QImode |
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385 |
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386 /* The register number of the stack pointer register, which must also |
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387 be a fixed register according to `FIXED_REGISTERS'. */ |
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388 #define STACK_POINTER_REGNUM MOXIE_SP |
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389 |
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390 /* The register number of the frame pointer register, which is used to |
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391 access automatic variables in the stack frame. */ |
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392 #define FRAME_POINTER_REGNUM MOXIE_QFP |
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393 |
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394 /* The register number of the arg pointer register, which is used to |
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395 access the function's argument list. */ |
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396 #define ARG_POINTER_REGNUM MOXIE_QAP |
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397 |
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398 #define HARD_FRAME_POINTER_REGNUM MOXIE_FP |
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399 |
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400 #define ELIMINABLE_REGS \ |
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401 {{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ |
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402 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} |
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|
403 |
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|
404 /* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It |
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|
405 specifies the initial difference between the specified pair of |
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|
406 registers. This macro must be defined if `ELIMINABLE_REGS' is |
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parents:
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407 defined. */ |
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408 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ |
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|
409 do { \ |
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410 (OFFSET) = moxie_initial_elimination_offset ((FROM), (TO)); \ |
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411 } while (0) |
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412 |
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413 /* A C expression that is nonzero if REGNO is the number of a hard |
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parents:
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414 register in which function arguments are sometimes passed. */ |
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415 #define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R5) |
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|
416 |
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|
417 /* A macro whose definition is the name of the class to which a valid |
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418 base register must belong. A base register is one used in an |
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419 address which is the register value plus a displacement. */ |
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420 #define BASE_REG_CLASS GENERAL_REGS |
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|
421 |
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|
422 #define INDEX_REG_CLASS NO_REGS |
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|
423 |
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|
424 #define HARD_REGNO_OK_FOR_BASE_P(NUM) \ |
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425 ((unsigned) (NUM) < FIRST_PSEUDO_REGISTER \ |
55
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426 && (REGNO_REG_CLASS(NUM) == GENERAL_REGS \ |
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|
427 || (NUM) == HARD_FRAME_POINTER_REGNUM)) |
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parents:
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|
428 |
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parents:
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|
429 /* A C expression which is nonzero if register number NUM is suitable |
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parents:
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|
430 for use as a base register in operand addresses. */ |
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parents:
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|
431 #ifdef REG_OK_STRICT |
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432 #define REGNO_OK_FOR_BASE_P(NUM) \ |
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433 (HARD_REGNO_OK_FOR_BASE_P(NUM) \ |
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434 || HARD_REGNO_OK_FOR_BASE_P(reg_renumber[(NUM)])) |
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435 #else |
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436 #define REGNO_OK_FOR_BASE_P(NUM) \ |
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437 ((NUM) >= FIRST_PSEUDO_REGISTER || HARD_REGNO_OK_FOR_BASE_P(NUM)) |
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438 #endif |
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439 |
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440 /* A C expression which is nonzero if register number NUM is suitable |
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441 for use as an index register in operand addresses. */ |
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442 #define REGNO_OK_FOR_INDEX_P(NUM) MOXIE_FP |
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443 |
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444 /* The maximum number of bytes that a single instruction can move |
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445 quickly between memory and registers or between two memory |
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446 locations. */ |
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447 #define MOVE_MAX 4 |
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448 #define TRULY_NOOP_TRUNCATION(op,ip) 1 |
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449 |
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450 /* All load operations zero extend. */ |
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451 #define LOAD_EXTEND_OP(MEM) ZERO_EXTEND |
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452 |
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453 /* A C expression that is nonzero if X is a legitimate constant for |
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454 an immediate operand on the target machine. */ |
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455 #define LEGITIMATE_CONSTANT_P(X) 1 |
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456 |
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457 /* A number, the maximum number of registers that can appear in a |
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458 valid memory address. */ |
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459 #define MAX_REGS_PER_ADDRESS 1 |
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460 |
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461 #define TRULY_NOOP_TRUNCATION(op,ip) 1 |
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462 |
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463 /* An alias for a machine mode name. This is the machine mode that |
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464 elements of a jump-table should have. */ |
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465 #define CASE_VECTOR_MODE SImode |
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466 |
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467 /* A C compound statement with a conditional `goto LABEL;' executed |
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468 if X (an RTX) is a legitimate memory address on the target machine |
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469 for a memory operand of mode MODE. */ |
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470 #define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL) \ |
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471 do { \ |
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472 if (GET_CODE(X) == PLUS) \ |
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473 { \ |
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474 rtx op1,op2; \ |
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475 op1 = XEXP(X,0); \ |
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476 op2 = XEXP(X,1); \ |
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477 if (GET_CODE(op1) == REG \ |
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478 && CONSTANT_ADDRESS_P(op2) \ |
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479 && REGNO_OK_FOR_BASE_P(REGNO(op1))) \ |
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480 goto LABEL; \ |
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481 } \ |
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482 if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X))) \ |
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483 goto LABEL; \ |
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484 if (GET_CODE (X) == SYMBOL_REF \ |
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485 || GET_CODE (X) == LABEL_REF \ |
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486 || GET_CODE (X) == CONST) \ |
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487 goto LABEL; \ |
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488 } while (0) |
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489 |
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490 /* Run-time Target Specification */ |
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491 |
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492 #define TARGET_CPU_CPP_BUILTINS() \ |
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493 { \ |
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494 builtin_define_std ("moxie"); \ |
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495 builtin_define_std ("MOXIE"); \ |
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496 } |
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497 |
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498 #define HAS_LONG_UNCOND_BRANCH true |
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499 |
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500 #endif /* GCC_MOXIE_H */ |