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1 /* Definitions for code generation pass of GNU compiler.
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2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
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3 Free Software Foundation, Inc.
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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
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public 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_OPTABS_H
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22 #define GCC_OPTABS_H
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23
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24 #include "insn-codes.h"
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25
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26 /* Optabs are tables saying how to generate insn bodies
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27 for various machine modes and numbers of operands.
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28 Each optab applies to one operation.
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29
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30 For example, add_optab applies to addition.
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31
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32 The insn_code slot is the enum insn_code that says how to
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33 generate an insn for this operation on a particular machine mode.
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34 It is CODE_FOR_nothing if there is no such insn on the target machine.
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35
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36 The `lib_call' slot is the name of the library function that
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37 can be used to perform the operation.
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38
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39 A few optabs, such as move_optab and cmp_optab, are used
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40 by special code. */
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41
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42 struct optab_handlers
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43 {
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44 enum insn_code insn_code;
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45 };
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46
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47 struct optab
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48 {
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49 enum rtx_code code;
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50 const char *libcall_basename;
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51 char libcall_suffix;
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52 void (*libcall_gen)(struct optab *, const char *name, char suffix, enum machine_mode);
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53 struct optab_handlers handlers[NUM_MACHINE_MODES];
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54 };
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55 typedef struct optab * optab;
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56
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57 /* A convert_optab is for some sort of conversion operation between
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58 modes. The first array index is the destination mode, the second
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59 is the source mode. */
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60 struct convert_optab
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61 {
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62 enum rtx_code code;
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63 const char *libcall_basename;
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64 void (*libcall_gen)(struct convert_optab *, const char *name,
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65 enum machine_mode,
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66 enum machine_mode);
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67 struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
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68 };
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69 typedef struct convert_optab *convert_optab;
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70
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71 /* Given an enum insn_code, access the function to construct
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72 the body of that kind of insn. */
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73 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
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74
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75 /* Enumeration of valid indexes into optab_table. */
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76 enum optab_index
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77 {
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78 /* Fixed-point operators with signed/unsigned saturation */
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79 OTI_ssadd,
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80 OTI_usadd,
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81 OTI_sssub,
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82 OTI_ussub,
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83 OTI_ssmul,
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84 OTI_usmul,
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85 OTI_ssdiv,
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86 OTI_usdiv,
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87 OTI_ssneg,
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88 OTI_usneg,
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89 OTI_ssashl,
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90 OTI_usashl,
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91
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92 OTI_add,
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93 OTI_addv,
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94 OTI_sub,
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95 OTI_subv,
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96
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97 /* Signed and fp multiply */
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98 OTI_smul,
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99 OTI_smulv,
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100 /* Signed multiply, return high word */
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101 OTI_smul_highpart,
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102 OTI_umul_highpart,
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103 /* Signed multiply with result one machine mode wider than args */
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104 OTI_smul_widen,
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105 OTI_umul_widen,
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106 /* Widening multiply of one unsigned and one signed operand. */
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107 OTI_usmul_widen,
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108 /* Signed multiply and add with the result and addend one machine mode
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109 wider than the multiplicand and multiplier. */
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110 OTI_smadd_widen,
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111 /* Unsigned multiply and add with the result and addend one machine mode
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112 wider than the multiplicand and multiplier. */
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113 OTI_umadd_widen,
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114 /* Signed multiply and add with the result and addend one machine mode
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115 wider than the multiplicand and multiplier.
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116 All involved operations are saturating. */
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117 OTI_ssmadd_widen,
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118 /* Unsigned multiply and add with the result and addend one machine mode
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119 wider than the multiplicand and multiplier.
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120 All involved operations are saturating. */
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121 OTI_usmadd_widen,
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122 /* Signed multiply and subtract the result and minuend one machine mode
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123 wider than the multiplicand and multiplier. */
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124 OTI_smsub_widen,
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125 /* Unsigned multiply and subtract the result and minuend one machine mode
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126 wider than the multiplicand and multiplier. */
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127 OTI_umsub_widen,
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128 /* Signed multiply and subtract the result and minuend one machine mode
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129 wider than the multiplicand and multiplier.
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130 All involved operations are saturating. */
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131 OTI_ssmsub_widen,
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132 /* Unsigned multiply and subtract the result and minuend one machine mode
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133 wider than the multiplicand and multiplier.
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134 All involved operations are saturating. */
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135 OTI_usmsub_widen,
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136
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137 /* Signed divide */
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138 OTI_sdiv,
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139 OTI_sdivv,
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140 /* Signed divide-and-remainder in one */
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141 OTI_sdivmod,
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142 OTI_udiv,
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143 OTI_udivmod,
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144 /* Signed remainder */
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145 OTI_smod,
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146 OTI_umod,
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147 /* Floating point remainder functions */
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148 OTI_fmod,
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149 OTI_remainder,
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150 /* Convert float to integer in float fmt */
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151 OTI_ftrunc,
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152
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153 /* Logical and */
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154 OTI_and,
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155 /* Logical or */
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156 OTI_ior,
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157 /* Logical xor */
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158 OTI_xor,
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159
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160 /* Arithmetic shift left */
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161 OTI_ashl,
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162 /* Logical shift right */
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163 OTI_lshr,
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164 /* Arithmetic shift right */
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165 OTI_ashr,
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166 /* Rotate left */
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167 OTI_rotl,
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168 /* Rotate right */
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169 OTI_rotr,
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170
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171 /* Arithmetic shift left of vector by vector */
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172 OTI_vashl,
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173 /* Logical shift right of vector by vector */
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174 OTI_vlshr,
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175 /* Arithmetic shift right of vector by vector */
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176 OTI_vashr,
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177 /* Rotate left of vector by vector */
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178 OTI_vrotl,
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179 /* Rotate right of vector by vector */
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180 OTI_vrotr,
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181
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182 /* Signed and floating-point minimum value */
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183 OTI_smin,
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184 /* Signed and floating-point maximum value */
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185 OTI_smax,
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186 /* Unsigned minimum value */
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187 OTI_umin,
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188 /* Unsigned maximum value */
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189 OTI_umax,
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190 /* Power */
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191 OTI_pow,
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192 /* Arc tangent of y/x */
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193 OTI_atan2,
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194
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195 /* Move instruction. */
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196 OTI_mov,
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197 /* Move, preserving high part of register. */
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198 OTI_movstrict,
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199 /* Move, with a misaligned memory. */
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200 OTI_movmisalign,
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201 /* Nontemporal store. */
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202 OTI_storent,
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203
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204 /* Unary operations */
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205 /* Negation */
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206 OTI_neg,
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207 OTI_negv,
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208 /* Abs value */
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209 OTI_abs,
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210 OTI_absv,
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211 /* Byteswap */
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212 OTI_bswap,
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213 /* Bitwise not */
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214 OTI_one_cmpl,
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215 /* Bit scanning and counting */
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216 OTI_ffs,
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217 OTI_clz,
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218 OTI_ctz,
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219 OTI_popcount,
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220 OTI_parity,
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221 /* Square root */
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222 OTI_sqrt,
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223 /* Sine-Cosine */
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224 OTI_sincos,
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225 /* Sine */
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226 OTI_sin,
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227 /* Inverse sine */
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228 OTI_asin,
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229 /* Cosine */
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230 OTI_cos,
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231 /* Inverse cosine */
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232 OTI_acos,
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233 /* Exponential */
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234 OTI_exp,
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235 /* Base-10 Exponential */
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236 OTI_exp10,
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237 /* Base-2 Exponential */
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238 OTI_exp2,
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239 /* Exponential - 1*/
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240 OTI_expm1,
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241 /* Load exponent of a floating point number */
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242 OTI_ldexp,
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243 /* Multiply floating-point number by integral power of radix */
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244 OTI_scalb,
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245 /* Radix-independent exponent */
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246 OTI_logb,
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247 OTI_ilogb,
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248 /* Natural Logarithm */
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249 OTI_log,
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250 /* Base-10 Logarithm */
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251 OTI_log10,
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252 /* Base-2 Logarithm */
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253 OTI_log2,
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254 /* logarithm of 1 plus argument */
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255 OTI_log1p,
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256 /* Rounding functions */
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257 OTI_floor,
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258 OTI_ceil,
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259 OTI_btrunc,
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260 OTI_round,
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261 OTI_nearbyint,
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262 OTI_rint,
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263 /* Tangent */
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264 OTI_tan,
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265 /* Inverse tangent */
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266 OTI_atan,
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267 /* Copy sign */
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268 OTI_copysign,
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269 /* Signbit */
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270 OTI_signbit,
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271 /* Test for infinite value */
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272 OTI_isinf,
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273
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274 /* Compare insn; two operands. */
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275 OTI_cmp,
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276 /* Used only for libcalls for unsigned comparisons. */
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277 OTI_ucmp,
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278 /* tst insn; compare one operand against 0 */
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279 OTI_tst,
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280
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281 /* Floating point comparison optabs - used primarily for libfuncs */
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282 OTI_eq,
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283 OTI_ne,
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284 OTI_gt,
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285 OTI_ge,
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286 OTI_lt,
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287 OTI_le,
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288 OTI_unord,
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289
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290 /* String length */
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291 OTI_strlen,
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292
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293 /* Combined compare & jump/store flags/move operations. */
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294 OTI_cbranch,
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295 OTI_cmov,
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296 OTI_cstore,
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297
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298 /* Push instruction. */
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299 OTI_push,
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300
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301 /* Conditional add instruction. */
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302 OTI_addcc,
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303
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304 /* Reduction operations on a vector operand. */
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305 OTI_reduc_smax,
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306 OTI_reduc_umax,
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307 OTI_reduc_smin,
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308 OTI_reduc_umin,
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309 OTI_reduc_splus,
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310 OTI_reduc_uplus,
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311
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312 /* Summation, with result machine mode one or more wider than args. */
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313 OTI_ssum_widen,
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314 OTI_usum_widen,
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315
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316 /* Dot product, with result machine mode one or more wider than args. */
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317 OTI_sdot_prod,
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318 OTI_udot_prod,
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319
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320 /* Set specified field of vector operand. */
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321 OTI_vec_set,
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322 /* Extract specified field of vector operand. */
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323 OTI_vec_extract,
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324 /* Extract even/odd fields of vector operands. */
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325 OTI_vec_extract_even,
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326 OTI_vec_extract_odd,
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327 /* Interleave fields of vector operands. */
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328 OTI_vec_interleave_high,
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329 OTI_vec_interleave_low,
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330 /* Initialize vector operand. */
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331 OTI_vec_init,
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332 /* Whole vector shift. The shift amount is in bits. */
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333 OTI_vec_shl,
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334 OTI_vec_shr,
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335 /* Extract specified elements from vectors, for vector load. */
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336 OTI_vec_realign_load,
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337 /* Widening multiplication.
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338 The high/low part of the resulting vector of products is returned. */
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339 OTI_vec_widen_umult_hi,
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340 OTI_vec_widen_umult_lo,
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341 OTI_vec_widen_smult_hi,
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342 OTI_vec_widen_smult_lo,
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343 /* Extract and widen the high/low part of a vector of signed or
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344 floating point elements. */
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345 OTI_vec_unpacks_hi,
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346 OTI_vec_unpacks_lo,
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347 /* Extract and widen the high/low part of a vector of unsigned
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348 elements. */
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349 OTI_vec_unpacku_hi,
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350 OTI_vec_unpacku_lo,
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351
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352 /* Extract, convert to floating point and widen the high/low part of
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353 a vector of signed or unsigned integer elements. */
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354 OTI_vec_unpacks_float_hi,
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355 OTI_vec_unpacks_float_lo,
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356 OTI_vec_unpacku_float_hi,
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357 OTI_vec_unpacku_float_lo,
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358
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359 /* Narrow (demote) and merge the elements of two vectors. */
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360 OTI_vec_pack_trunc,
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361 OTI_vec_pack_usat,
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362 OTI_vec_pack_ssat,
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363
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364 /* Convert to signed/unsigned integer, narrow and merge elements
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365 of two vectors of floating point elements. */
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366 OTI_vec_pack_sfix_trunc,
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367 OTI_vec_pack_ufix_trunc,
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368
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369 /* Perform a raise to the power of integer. */
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370 OTI_powi,
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371
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372 OTI_MAX
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373 };
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374
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375 extern struct optab optab_table[OTI_MAX];
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376
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377 #define ssadd_optab (&optab_table[OTI_ssadd])
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378 #define usadd_optab (&optab_table[OTI_usadd])
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379 #define sssub_optab (&optab_table[OTI_sssub])
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380 #define ussub_optab (&optab_table[OTI_ussub])
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381 #define ssmul_optab (&optab_table[OTI_ssmul])
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382 #define usmul_optab (&optab_table[OTI_usmul])
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383 #define ssdiv_optab (&optab_table[OTI_ssdiv])
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384 #define usdiv_optab (&optab_table[OTI_usdiv])
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385 #define ssneg_optab (&optab_table[OTI_ssneg])
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386 #define usneg_optab (&optab_table[OTI_usneg])
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387 #define ssashl_optab (&optab_table[OTI_ssashl])
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388 #define usashl_optab (&optab_table[OTI_usashl])
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389
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390 #define add_optab (&optab_table[OTI_add])
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391 #define sub_optab (&optab_table[OTI_sub])
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392 #define smul_optab (&optab_table[OTI_smul])
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393 #define addv_optab (&optab_table[OTI_addv])
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394 #define subv_optab (&optab_table[OTI_subv])
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395 #define smul_highpart_optab (&optab_table[OTI_smul_highpart])
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396 #define umul_highpart_optab (&optab_table[OTI_umul_highpart])
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397 #define smul_widen_optab (&optab_table[OTI_smul_widen])
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398 #define umul_widen_optab (&optab_table[OTI_umul_widen])
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399 #define usmul_widen_optab (&optab_table[OTI_usmul_widen])
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400 #define smadd_widen_optab (&optab_table[OTI_smadd_widen])
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401 #define umadd_widen_optab (&optab_table[OTI_umadd_widen])
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402 #define ssmadd_widen_optab (&optab_table[OTI_ssmadd_widen])
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403 #define usmadd_widen_optab (&optab_table[OTI_usmadd_widen])
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404 #define smsub_widen_optab (&optab_table[OTI_smsub_widen])
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405 #define umsub_widen_optab (&optab_table[OTI_umsub_widen])
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406 #define ssmsub_widen_optab (&optab_table[OTI_ssmsub_widen])
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407 #define usmsub_widen_optab (&optab_table[OTI_usmsub_widen])
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408 #define sdiv_optab (&optab_table[OTI_sdiv])
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409 #define smulv_optab (&optab_table[OTI_smulv])
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410 #define sdivv_optab (&optab_table[OTI_sdivv])
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411 #define sdivmod_optab (&optab_table[OTI_sdivmod])
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412 #define udiv_optab (&optab_table[OTI_udiv])
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413 #define udivmod_optab (&optab_table[OTI_udivmod])
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414 #define smod_optab (&optab_table[OTI_smod])
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415 #define umod_optab (&optab_table[OTI_umod])
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416 #define fmod_optab (&optab_table[OTI_fmod])
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417 #define remainder_optab (&optab_table[OTI_remainder])
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418 #define ftrunc_optab (&optab_table[OTI_ftrunc])
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419 #define and_optab (&optab_table[OTI_and])
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420 #define ior_optab (&optab_table[OTI_ior])
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421 #define xor_optab (&optab_table[OTI_xor])
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422 #define ashl_optab (&optab_table[OTI_ashl])
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423 #define lshr_optab (&optab_table[OTI_lshr])
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424 #define ashr_optab (&optab_table[OTI_ashr])
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425 #define rotl_optab (&optab_table[OTI_rotl])
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426 #define rotr_optab (&optab_table[OTI_rotr])
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427 #define vashl_optab (&optab_table[OTI_vashl])
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428 #define vlshr_optab (&optab_table[OTI_vlshr])
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429 #define vashr_optab (&optab_table[OTI_vashr])
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430 #define vrotl_optab (&optab_table[OTI_vrotl])
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431 #define vrotr_optab (&optab_table[OTI_vrotr])
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432 #define smin_optab (&optab_table[OTI_smin])
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433 #define smax_optab (&optab_table[OTI_smax])
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434 #define umin_optab (&optab_table[OTI_umin])
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435 #define umax_optab (&optab_table[OTI_umax])
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436 #define pow_optab (&optab_table[OTI_pow])
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437 #define atan2_optab (&optab_table[OTI_atan2])
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438
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439 #define mov_optab (&optab_table[OTI_mov])
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440 #define movstrict_optab (&optab_table[OTI_movstrict])
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441 #define movmisalign_optab (&optab_table[OTI_movmisalign])
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442 #define storent_optab (&optab_table[OTI_storent])
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443
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444 #define neg_optab (&optab_table[OTI_neg])
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445 #define negv_optab (&optab_table[OTI_negv])
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446 #define abs_optab (&optab_table[OTI_abs])
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447 #define absv_optab (&optab_table[OTI_absv])
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448 #define one_cmpl_optab (&optab_table[OTI_one_cmpl])
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449 #define bswap_optab (&optab_table[OTI_bswap])
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450 #define ffs_optab (&optab_table[OTI_ffs])
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451 #define clz_optab (&optab_table[OTI_clz])
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452 #define ctz_optab (&optab_table[OTI_ctz])
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453 #define popcount_optab (&optab_table[OTI_popcount])
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454 #define parity_optab (&optab_table[OTI_parity])
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455 #define sqrt_optab (&optab_table[OTI_sqrt])
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456 #define sincos_optab (&optab_table[OTI_sincos])
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457 #define sin_optab (&optab_table[OTI_sin])
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458 #define asin_optab (&optab_table[OTI_asin])
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459 #define cos_optab (&optab_table[OTI_cos])
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460 #define acos_optab (&optab_table[OTI_acos])
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461 #define exp_optab (&optab_table[OTI_exp])
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462 #define exp10_optab (&optab_table[OTI_exp10])
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463 #define exp2_optab (&optab_table[OTI_exp2])
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464 #define expm1_optab (&optab_table[OTI_expm1])
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465 #define ldexp_optab (&optab_table[OTI_ldexp])
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466 #define scalb_optab (&optab_table[OTI_scalb])
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467 #define logb_optab (&optab_table[OTI_logb])
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468 #define ilogb_optab (&optab_table[OTI_ilogb])
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469 #define log_optab (&optab_table[OTI_log])
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470 #define log10_optab (&optab_table[OTI_log10])
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471 #define log2_optab (&optab_table[OTI_log2])
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472 #define log1p_optab (&optab_table[OTI_log1p])
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473 #define floor_optab (&optab_table[OTI_floor])
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474 #define ceil_optab (&optab_table[OTI_ceil])
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475 #define btrunc_optab (&optab_table[OTI_btrunc])
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476 #define round_optab (&optab_table[OTI_round])
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477 #define nearbyint_optab (&optab_table[OTI_nearbyint])
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478 #define rint_optab (&optab_table[OTI_rint])
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479 #define tan_optab (&optab_table[OTI_tan])
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480 #define atan_optab (&optab_table[OTI_atan])
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481 #define copysign_optab (&optab_table[OTI_copysign])
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482 #define signbit_optab (&optab_table[OTI_signbit])
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483 #define isinf_optab (&optab_table[OTI_isinf])
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484
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485 #define cmp_optab (&optab_table[OTI_cmp])
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486 #define ucmp_optab (&optab_table[OTI_ucmp])
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487 #define tst_optab (&optab_table[OTI_tst])
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488
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489 #define eq_optab (&optab_table[OTI_eq])
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490 #define ne_optab (&optab_table[OTI_ne])
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491 #define gt_optab (&optab_table[OTI_gt])
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492 #define ge_optab (&optab_table[OTI_ge])
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493 #define lt_optab (&optab_table[OTI_lt])
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494 #define le_optab (&optab_table[OTI_le])
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495 #define unord_optab (&optab_table[OTI_unord])
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496
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497 #define strlen_optab (&optab_table[OTI_strlen])
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498
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499 #define cbranch_optab (&optab_table[OTI_cbranch])
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500 #define cmov_optab (&optab_table[OTI_cmov])
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501 #define cstore_optab (&optab_table[OTI_cstore])
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502 #define push_optab (&optab_table[OTI_push])
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503 #define addcc_optab (&optab_table[OTI_addcc])
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504
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505 #define reduc_smax_optab (&optab_table[OTI_reduc_smax])
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506 #define reduc_umax_optab (&optab_table[OTI_reduc_umax])
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507 #define reduc_smin_optab (&optab_table[OTI_reduc_smin])
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508 #define reduc_umin_optab (&optab_table[OTI_reduc_umin])
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509 #define reduc_splus_optab (&optab_table[OTI_reduc_splus])
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510 #define reduc_uplus_optab (&optab_table[OTI_reduc_uplus])
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511
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512 #define ssum_widen_optab (&optab_table[OTI_ssum_widen])
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513 #define usum_widen_optab (&optab_table[OTI_usum_widen])
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514 #define sdot_prod_optab (&optab_table[OTI_sdot_prod])
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515 #define udot_prod_optab (&optab_table[OTI_udot_prod])
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516
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517 #define vec_set_optab (&optab_table[OTI_vec_set])
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518 #define vec_extract_optab (&optab_table[OTI_vec_extract])
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519 #define vec_extract_even_optab (&optab_table[OTI_vec_extract_even])
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520 #define vec_extract_odd_optab (&optab_table[OTI_vec_extract_odd])
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521 #define vec_interleave_high_optab (&optab_table[OTI_vec_interleave_high])
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522 #define vec_interleave_low_optab (&optab_table[OTI_vec_interleave_low])
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523 #define vec_init_optab (&optab_table[OTI_vec_init])
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524 #define vec_shl_optab (&optab_table[OTI_vec_shl])
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525 #define vec_shr_optab (&optab_table[OTI_vec_shr])
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526 #define vec_realign_load_optab (&optab_table[OTI_vec_realign_load])
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527 #define vec_widen_umult_hi_optab (&optab_table[OTI_vec_widen_umult_hi])
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528 #define vec_widen_umult_lo_optab (&optab_table[OTI_vec_widen_umult_lo])
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529 #define vec_widen_smult_hi_optab (&optab_table[OTI_vec_widen_smult_hi])
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530 #define vec_widen_smult_lo_optab (&optab_table[OTI_vec_widen_smult_lo])
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531 #define vec_unpacks_hi_optab (&optab_table[OTI_vec_unpacks_hi])
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532 #define vec_unpacks_lo_optab (&optab_table[OTI_vec_unpacks_lo])
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533 #define vec_unpacku_hi_optab (&optab_table[OTI_vec_unpacku_hi])
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534 #define vec_unpacku_lo_optab (&optab_table[OTI_vec_unpacku_lo])
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535 #define vec_unpacks_float_hi_optab (&optab_table[OTI_vec_unpacks_float_hi])
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536 #define vec_unpacks_float_lo_optab (&optab_table[OTI_vec_unpacks_float_lo])
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537 #define vec_unpacku_float_hi_optab (&optab_table[OTI_vec_unpacku_float_hi])
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538 #define vec_unpacku_float_lo_optab (&optab_table[OTI_vec_unpacku_float_lo])
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539 #define vec_pack_trunc_optab (&optab_table[OTI_vec_pack_trunc])
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540 #define vec_pack_ssat_optab (&optab_table[OTI_vec_pack_ssat])
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541 #define vec_pack_usat_optab (&optab_table[OTI_vec_pack_usat])
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542 #define vec_pack_sfix_trunc_optab (&optab_table[OTI_vec_pack_sfix_trunc])
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543 #define vec_pack_ufix_trunc_optab (&optab_table[OTI_vec_pack_ufix_trunc])
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544
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545 #define powi_optab (&optab_table[OTI_powi])
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546
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547 /* Conversion optabs have their own table and indexes. */
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548 enum convert_optab_index
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549 {
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550 COI_sext,
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551 COI_zext,
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552 COI_trunc,
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553
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554 COI_sfix,
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555 COI_ufix,
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556
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557 COI_sfixtrunc,
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558 COI_ufixtrunc,
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559
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560 COI_sfloat,
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561 COI_ufloat,
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562
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563 COI_lrint,
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564 COI_lround,
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565 COI_lfloor,
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566 COI_lceil,
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567
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568 COI_fract,
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569 COI_fractuns,
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570 COI_satfract,
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571 COI_satfractuns,
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572
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573 COI_MAX
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574 };
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575
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576 extern struct convert_optab convert_optab_table[COI_MAX];
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577
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578 #define sext_optab (&convert_optab_table[COI_sext])
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579 #define zext_optab (&convert_optab_table[COI_zext])
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580 #define trunc_optab (&convert_optab_table[COI_trunc])
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581 #define sfix_optab (&convert_optab_table[COI_sfix])
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582 #define ufix_optab (&convert_optab_table[COI_ufix])
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583 #define sfixtrunc_optab (&convert_optab_table[COI_sfixtrunc])
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584 #define ufixtrunc_optab (&convert_optab_table[COI_ufixtrunc])
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585 #define sfloat_optab (&convert_optab_table[COI_sfloat])
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586 #define ufloat_optab (&convert_optab_table[COI_ufloat])
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587 #define lrint_optab (&convert_optab_table[COI_lrint])
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588 #define lround_optab (&convert_optab_table[COI_lround])
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589 #define lfloor_optab (&convert_optab_table[COI_lfloor])
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590 #define lceil_optab (&convert_optab_table[COI_lceil])
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591 #define fract_optab (&convert_optab_table[COI_fract])
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592 #define fractuns_optab (&convert_optab_table[COI_fractuns])
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593 #define satfract_optab (&convert_optab_table[COI_satfract])
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594 #define satfractuns_optab (&convert_optab_table[COI_satfractuns])
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595
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596 /* These arrays record the insn_code of insns that may be needed to
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597 perform input and output reloads of special objects. They provide a
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598 place to pass a scratch register. */
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599 extern enum insn_code reload_in_optab[NUM_MACHINE_MODES];
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600 extern enum insn_code reload_out_optab[NUM_MACHINE_MODES];
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601
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602 /* Contains the optab used for each rtx code. */
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603 extern optab code_to_optab[NUM_RTX_CODE + 1];
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604
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605
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606 typedef rtx (*rtxfun) (rtx);
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607
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608 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
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609 gives the gen_function to make a branch to test that condition. */
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610
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611 extern rtxfun bcc_gen_fctn[NUM_RTX_CODE];
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612
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613 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
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614 gives the insn code to make a store-condition insn
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615 to test that condition. */
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616
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617 extern enum insn_code setcc_gen_code[NUM_RTX_CODE];
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618
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619 #ifdef HAVE_conditional_move
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620 /* Indexed by the machine mode, gives the insn code to make a conditional
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621 move insn. */
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622
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623 extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES];
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624 #endif
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625
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626 /* Indexed by the machine mode, gives the insn code for vector conditional
|
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627 operation. */
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628
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629 extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES];
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630 extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES];
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631
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632 /* This array records the insn_code of insns to perform block moves. */
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633 extern enum insn_code movmem_optab[NUM_MACHINE_MODES];
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634
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635 /* This array records the insn_code of insns to perform block sets. */
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636 extern enum insn_code setmem_optab[NUM_MACHINE_MODES];
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637
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638 /* These arrays record the insn_code of two different kinds of insns
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639 to perform block compares. */
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640 extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES];
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641 extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES];
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642 extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES];
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643
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644 /* Synchronization primitives. This first set is atomic operation for
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645 which we don't care about the resulting value. */
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646 extern enum insn_code sync_add_optab[NUM_MACHINE_MODES];
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647 extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES];
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648 extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES];
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649 extern enum insn_code sync_and_optab[NUM_MACHINE_MODES];
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650 extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES];
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651 extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES];
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652
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653 /* This second set is atomic operations in which we return the value
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654 that existed in memory before the operation. */
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655 extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES];
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656 extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES];
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657 extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES];
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658 extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES];
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659 extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES];
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660 extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES];
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661
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662 /* This third set is atomic operations in which we return the value
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663 that resulted after performing the operation. */
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664 extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES];
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665 extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES];
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666 extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES];
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667 extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES];
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668 extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES];
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669 extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES];
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670
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671 /* Atomic compare and swap. */
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672 extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES];
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673 extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES];
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674
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675 /* Atomic exchange with acquire semantics. */
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676 extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES];
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677
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678 /* Atomic clear with release semantics. */
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679 extern enum insn_code sync_lock_release[NUM_MACHINE_MODES];
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680
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681 /* Define functions given in optabs.c. */
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682
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683 extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op,
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684 rtx target, int unsignedp);
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685
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686 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab,
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687 rtx op0, rtx op1, rtx op2, rtx target,
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688 int unsignedp);
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689
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690 /* Expand a binary operation given optab and rtx operands. */
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691 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
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692 enum optab_methods);
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693
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694 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
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695 enum optab_methods);
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696
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697 /* Expand a binary operation with both signed and unsigned forms. */
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698 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx,
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699 rtx, int, enum optab_methods);
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700
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701 /* Generate code to perform an operation on one operand with two results. */
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702 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int);
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703
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704 /* Generate code to perform an operation on two operands with two results. */
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705 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int);
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706
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707 /* Generate code to perform an operation on two operands with two
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708 results, using a library function. */
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709 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx,
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710 enum rtx_code);
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711
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712 /* Expand a unary arithmetic operation given optab rtx operand. */
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713 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int);
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714
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715 /* Expand the absolute value operation. */
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716 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int);
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717 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int);
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718
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719 /* Expand the copysign operation. */
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720 extern rtx expand_copysign (rtx, rtx, rtx);
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721
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722 /* Generate an instruction with a given INSN_CODE with an output and
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723 an input. */
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724 extern void emit_unop_insn (int, rtx, rtx, enum rtx_code);
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725 extern bool maybe_emit_unop_insn (int, rtx, rtx, enum rtx_code);
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726
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727 /* Emit one rtl insn to compare two rtx's. */
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728 extern void emit_cmp_insn (rtx, rtx, enum rtx_code, rtx, enum machine_mode,
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729 int);
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730
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731 /* An extra flag to control optab_for_tree_code's behavior. This is needed to
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732 distinguish between machines with a vector shift that takes a scalar for the
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733 shift amount vs. machines that take a vector for the shift amount. */
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734 enum optab_subtype
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735 {
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736 optab_default,
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737 optab_scalar,
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738 optab_vector
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739 };
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740
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741 /* Return the optab used for computing the given operation on the type given by
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742 the second argument. The third argument distinguishes between the types of
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743 vector shifts and rotates */
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744 extern optab optab_for_tree_code (enum tree_code, const_tree, enum optab_subtype);
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745
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746 /* The various uses that a comparison can have; used by can_compare_p:
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747 jumps, conditional moves, store flag operations. */
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748 enum can_compare_purpose
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749 {
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750 ccp_jump,
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751 ccp_cmov,
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752 ccp_store_flag
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753 };
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754
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755 /* Nonzero if a compare of mode MODE can be done straightforwardly
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756 (without splitting it into pieces). */
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757 extern int can_compare_p (enum rtx_code, enum machine_mode,
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758 enum can_compare_purpose);
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759
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760 /* Return the INSN_CODE to use for an extend operation. */
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761 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int);
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762
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763 /* Generate the body of an insn to extend Y (with mode MFROM)
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764 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
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765 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode,
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766 enum machine_mode, int);
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767
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768 /* Call this to reset the function entry for one optab. */
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769 extern void set_optab_libfunc (optab, enum machine_mode, const char *);
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770 extern void set_conv_libfunc (convert_optab, enum machine_mode,
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771 enum machine_mode, const char *);
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772
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773 /* Generate code for a FIXED_CONVERT_EXPR. */
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774 extern void expand_fixed_convert (rtx, rtx, int, int);
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775
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776 /* Generate code for a FLOAT_EXPR. */
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777 extern void expand_float (rtx, rtx, int);
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778
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779 /* Generate code for a FIX_EXPR. */
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780 extern void expand_fix (rtx, rtx, int);
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781
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782 /* Generate code for float to integral conversion. */
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783 extern bool expand_sfix_optab (rtx, rtx, convert_optab);
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784
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785 /* Return tree if target supports vector operations for COND_EXPR. */
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786 bool expand_vec_cond_expr_p (tree, enum machine_mode);
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787
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788 /* Generate code for VEC_COND_EXPR. */
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789 extern rtx expand_vec_cond_expr (tree, rtx);
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790
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791 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */
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792 extern rtx expand_vec_shift_expr (tree, rtx);
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793
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794 #define optab_handler(optab,mode) (&(optab)->handlers[(int) (mode)])
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795 #define convert_optab_handler(optab,mode,mode2) \
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796 (&(optab)->handlers[(int) (mode)][(int) (mode2)])
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797
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798 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
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799 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
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800 extern rtx convert_optab_libfunc (convert_optab optab, enum machine_mode mode1,
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801 enum machine_mode mode2);
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802 #endif /* GCC_OPTABS_H */
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