111
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1 dnl Support macro file for intrinsic functions.
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2 dnl Contains the generic sections of the array functions.
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3 dnl This file is part of the GNU Fortran Runtime Library (libgfortran)
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4 dnl Distributed under the GNU GPL with exception. See COPYING for details.
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5 dnl
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6 dnl Pass the implementation for a single section as the parameter to
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7 dnl {MASK_}ARRAY_FUNCTION.
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8 dnl The variables base, delta, and len describe the input section.
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9 dnl For masked section the mask is described by mbase and mdelta.
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10 dnl These should not be modified. The result should be stored in *dest.
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11 dnl The names count, extent, sstride, dstride, base, dest, rank, dim
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12 dnl retarray, array, pdim and mstride should not be used.
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13 dnl The variable n is declared as index_type and may be used.
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14 dnl Other variable declarations may be placed at the start of the code,
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15 dnl The types of the array parameter and the return value are
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16 dnl atype_name and rtype_name respectively.
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17 dnl Execution should be allowed to continue to the end of the block.
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18 dnl You should not return or break from the inner loop of the implementation.
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19 dnl Care should also be taken to avoid using the names defined in iparm.m4
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20 define(START_ARRAY_FUNCTION,
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21 `
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22 extern void name`'rtype_qual`_'atype_code (rtype * const restrict,
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131
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23 atype` * const restrict, const 'index_type` * const restrict'back_arg`);
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24 export_proto('name`'rtype_qual`_'atype_code);
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111
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25
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26 void
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131
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27 name`'rtype_qual`_'atype_code` ('rtype` * const restrict retarray,
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28 'atype` * const restrict array,
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29 const index_type * const restrict pdim'back_arg`)
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111
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30 {
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31 index_type count[GFC_MAX_DIMENSIONS];
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32 index_type extent[GFC_MAX_DIMENSIONS];
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33 index_type sstride[GFC_MAX_DIMENSIONS];
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34 index_type dstride[GFC_MAX_DIMENSIONS];
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131
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35 const 'atype_name * restrict base;
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111
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36 rtype_name * restrict dest;
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37 index_type rank;
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38 index_type n;
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39 index_type len;
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40 index_type delta;
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41 index_type dim;
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42 int continue_loop;
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43
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44 /* Make dim zero based to avoid confusion. */
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131
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45 rank = GFC_DESCRIPTOR_RANK (array) - 1;
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46 dim = (*pdim) - 1;
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47
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48 if (unlikely (dim < 0 || dim > rank))
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49 {
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50 runtime_error ("Dim argument incorrect in u_name intrinsic: "
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51 "is %ld, should be between 1 and %ld",
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52 (long int) dim + 1, (long int) rank + 1);
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53 }
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54
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55 len = GFC_DESCRIPTOR_EXTENT(array,dim);
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56 if (len < 0)
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57 len = 0;
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58 delta = GFC_DESCRIPTOR_STRIDE(array,dim);
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59
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60 for (n = 0; n < dim; n++)
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61 {
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62 sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
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63 extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
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64
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65 if (extent[n] < 0)
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66 extent[n] = 0;
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67 }
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68 for (n = dim; n < rank; n++)
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69 {
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70 sstride[n] = GFC_DESCRIPTOR_STRIDE(array, n + 1);
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71 extent[n] = GFC_DESCRIPTOR_EXTENT(array, n + 1);
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72
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73 if (extent[n] < 0)
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74 extent[n] = 0;
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75 }
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76
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77 if (retarray->base_addr == NULL)
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78 {
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79 size_t alloc_size, str;
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80
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81 for (n = 0; n < rank; n++)
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82 {
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83 if (n == 0)
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84 str = 1;
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85 else
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86 str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1];
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87
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88 GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str);
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89
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90 }
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91
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92 retarray->offset = 0;
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131
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93 retarray->dtype.rank = rank;
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94
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95 alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1];
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96
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97 retarray->base_addr = xmallocarray (alloc_size, sizeof (rtype_name));
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98 if (alloc_size == 0)
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99 {
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100 /* Make sure we have a zero-sized array. */
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101 GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
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102 return;
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103
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104 }
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105 }
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106 else
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107 {
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108 if (rank != GFC_DESCRIPTOR_RANK (retarray))
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109 runtime_error ("rank of return array incorrect in"
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110 " u_name intrinsic: is %ld, should be %ld",
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111 (long int) (GFC_DESCRIPTOR_RANK (retarray)),
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112 (long int) rank);
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113
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114 if (unlikely (compile_options.bounds_check))
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115 bounds_ifunction_return ((array_t *) retarray, extent,
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116 "return value", "u_name");
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117 }
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118
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119 for (n = 0; n < rank; n++)
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120 {
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121 count[n] = 0;
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122 dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n);
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123 if (extent[n] <= 0)
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124 return;
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125 }
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126
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127 base = array->base_addr;
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128 dest = retarray->base_addr;
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129
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130 continue_loop = 1;
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131 while (continue_loop)
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132 {
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133 const atype_name * restrict src;
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134 rtype_name result;
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135 src = base;
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136 {
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137 ')dnl
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138 define(START_ARRAY_BLOCK,
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139 ` if (len <= 0)
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140 *dest = '$1`;
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141 else
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142 {
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131
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143 #if ! defined HAVE_BACK_ARG
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144 for (n = 0; n < len; n++, src += delta)
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145 {
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131
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146 #endif
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111
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147 ')dnl
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148 define(FINISH_ARRAY_FUNCTION,
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149 ` }
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150 '$1`
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151 *dest = result;
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152 }
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153 }
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154 /* Advance to the next element. */
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155 count[0]++;
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156 base += sstride[0];
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157 dest += dstride[0];
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158 n = 0;
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159 while (count[n] == extent[n])
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160 {
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161 /* When we get to the end of a dimension, reset it and increment
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162 the next dimension. */
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163 count[n] = 0;
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164 /* We could precalculate these products, but this is a less
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165 frequently used path so probably not worth it. */
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166 base -= sstride[n] * extent[n];
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167 dest -= dstride[n] * extent[n];
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168 n++;
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169 if (n >= rank)
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170 {
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171 /* Break out of the loop. */
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172 continue_loop = 0;
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173 break;
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174 }
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175 else
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176 {
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177 count[n]++;
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178 base += sstride[n];
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179 dest += dstride[n];
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180 }
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181 }
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182 }
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183 }')dnl
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184 define(START_MASKED_ARRAY_FUNCTION,
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185 `
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131
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186 extern void `m'name`'rtype_qual`_'atype_code` ('rtype` * const restrict,
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187 'atype` * const restrict, const 'index_type` * const restrict,
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188 gfc_array_l1 * const restrict'back_arg`);
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189 export_proto(m'name`'rtype_qual`_'atype_code`);
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190
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191 void
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131
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192 m'name`'rtype_qual`_'atype_code` ('rtype` * const restrict retarray,
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193 'atype` * const restrict array,
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111
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194 const index_type * const restrict pdim,
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131
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195 gfc_array_l1 * const restrict mask'back_arg`)
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196 {
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197 index_type count[GFC_MAX_DIMENSIONS];
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198 index_type extent[GFC_MAX_DIMENSIONS];
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199 index_type sstride[GFC_MAX_DIMENSIONS];
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200 index_type dstride[GFC_MAX_DIMENSIONS];
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201 index_type mstride[GFC_MAX_DIMENSIONS];
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202 'rtype_name * restrict dest;
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203 const atype_name * restrict base;
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204 const GFC_LOGICAL_1 * restrict mbase;
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205 index_type rank;
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206 index_type dim;
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207 index_type n;
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208 index_type len;
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209 index_type delta;
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210 index_type mdelta;
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211 int mask_kind;
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212
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145
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213 if (mask == NULL)
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214 {
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215 #ifdef HAVE_BACK_ARG
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216 name`'rtype_qual`_'atype_code (retarray, array, pdim, back);
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217 #else
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218 name`'rtype_qual`_'atype_code (retarray, array, pdim);
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219 #endif
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220 return;
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221 }
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222
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223 dim = (*pdim) - 1;
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224 rank = GFC_DESCRIPTOR_RANK (array) - 1;
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225
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226
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227 if (unlikely (dim < 0 || dim > rank))
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228 {
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229 runtime_error ("Dim argument incorrect in u_name intrinsic: "
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230 "is %ld, should be between 1 and %ld",
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231 (long int) dim + 1, (long int) rank + 1);
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232 }
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233
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234 len = GFC_DESCRIPTOR_EXTENT(array,dim);
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235 if (len <= 0)
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236 return;
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237
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238 mbase = mask->base_addr;
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239
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240 mask_kind = GFC_DESCRIPTOR_SIZE (mask);
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241
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242 if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8
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243 #ifdef HAVE_GFC_LOGICAL_16
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244 || mask_kind == 16
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245 #endif
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246 )
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247 mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind);
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248 else
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249 runtime_error ("Funny sized logical array");
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250
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251 delta = GFC_DESCRIPTOR_STRIDE(array,dim);
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252 mdelta = GFC_DESCRIPTOR_STRIDE_BYTES(mask,dim);
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253
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254 for (n = 0; n < dim; n++)
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255 {
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256 sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
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257 mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n);
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258 extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
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259
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260 if (extent[n] < 0)
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261 extent[n] = 0;
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262
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263 }
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264 for (n = dim; n < rank; n++)
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265 {
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266 sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n + 1);
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267 mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n + 1);
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268 extent[n] = GFC_DESCRIPTOR_EXTENT(array, n + 1);
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269
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270 if (extent[n] < 0)
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271 extent[n] = 0;
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272 }
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273
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274 if (retarray->base_addr == NULL)
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275 {
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276 size_t alloc_size, str;
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277
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278 for (n = 0; n < rank; n++)
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279 {
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280 if (n == 0)
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281 str = 1;
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282 else
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283 str= GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1];
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284
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285 GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str);
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286
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287 }
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288
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289 alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1];
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290
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291 retarray->offset = 0;
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131
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292 retarray->dtype.rank = rank;
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111
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293
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294 if (alloc_size == 0)
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295 {
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296 /* Make sure we have a zero-sized array. */
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297 GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
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298 return;
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299 }
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300 else
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301 retarray->base_addr = xmallocarray (alloc_size, sizeof (rtype_name));
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302
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303 }
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304 else
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305 {
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306 if (rank != GFC_DESCRIPTOR_RANK (retarray))
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307 runtime_error ("rank of return array incorrect in u_name intrinsic");
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308
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309 if (unlikely (compile_options.bounds_check))
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310 {
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311 bounds_ifunction_return ((array_t *) retarray, extent,
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312 "return value", "u_name");
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313 bounds_equal_extents ((array_t *) mask, (array_t *) array,
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314 "MASK argument", "u_name");
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315 }
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316 }
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317
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318 for (n = 0; n < rank; n++)
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319 {
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320 count[n] = 0;
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321 dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n);
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322 if (extent[n] <= 0)
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323 return;
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324 }
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325
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326 dest = retarray->base_addr;
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327 base = array->base_addr;
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328
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329 while (base)
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330 {
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331 const atype_name * restrict src;
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332 const GFC_LOGICAL_1 * restrict msrc;
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333 rtype_name result;
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334 src = base;
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335 msrc = mbase;
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336 {
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337 ')dnl
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338 define(START_MASKED_ARRAY_BLOCK,
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339 ` for (n = 0; n < len; n++, src += delta, msrc += mdelta)
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340 {
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341 ')dnl
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342 define(FINISH_MASKED_ARRAY_FUNCTION,
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343 ` }
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344 *dest = result;
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345 }
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346 /* Advance to the next element. */
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347 count[0]++;
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348 base += sstride[0];
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349 mbase += mstride[0];
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350 dest += dstride[0];
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351 n = 0;
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352 while (count[n] == extent[n])
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353 {
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354 /* When we get to the end of a dimension, reset it and increment
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355 the next dimension. */
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356 count[n] = 0;
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357 /* We could precalculate these products, but this is a less
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358 frequently used path so probably not worth it. */
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359 base -= sstride[n] * extent[n];
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360 mbase -= mstride[n] * extent[n];
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361 dest -= dstride[n] * extent[n];
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362 n++;
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363 if (n >= rank)
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364 {
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365 /* Break out of the loop. */
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366 base = NULL;
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367 break;
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368 }
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369 else
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370 {
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371 count[n]++;
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372 base += sstride[n];
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373 mbase += mstride[n];
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374 dest += dstride[n];
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375 }
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376 }
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377 }
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378 }')dnl
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379 define(SCALAR_ARRAY_FUNCTION,
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380 `
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131
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381 extern void `s'name`'rtype_qual`_'atype_code` ('rtype` * const restrict,
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382 'atype` * const restrict, const index_type * const restrict,
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383 GFC_LOGICAL_4 *'back_arg`);
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384 export_proto(s'name`'rtype_qual`_'atype_code);
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111
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385
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386 void
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131
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387 `s'name`'rtype_qual`_'atype_code` ('rtype` * const restrict retarray,
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388 'atype` * const restrict array,
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111
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389 const index_type * const restrict pdim,
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131
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390 GFC_LOGICAL_4 * mask'back_arg`)
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111
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391 {
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392 index_type count[GFC_MAX_DIMENSIONS];
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393 index_type extent[GFC_MAX_DIMENSIONS];
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394 index_type dstride[GFC_MAX_DIMENSIONS];
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131
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395 'rtype_name * restrict dest;
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111
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396 index_type rank;
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397 index_type n;
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398 index_type dim;
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399
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400
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145
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401 if (mask == NULL || *mask)
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111
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402 {
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131
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403 #ifdef HAVE_BACK_ARG
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404 name`'rtype_qual`_'atype_code (retarray, array, pdim, back);
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405 #else
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111
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406 name`'rtype_qual`_'atype_code (retarray, array, pdim);
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131
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407 #endif
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111
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408 return;
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409 }
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410 /* Make dim zero based to avoid confusion. */
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411 dim = (*pdim) - 1;
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412 rank = GFC_DESCRIPTOR_RANK (array) - 1;
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413
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414 if (unlikely (dim < 0 || dim > rank))
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415 {
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416 runtime_error ("Dim argument incorrect in u_name intrinsic: "
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417 "is %ld, should be between 1 and %ld",
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418 (long int) dim + 1, (long int) rank + 1);
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419 }
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420
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421 for (n = 0; n < dim; n++)
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422 {
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423 extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
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424
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425 if (extent[n] <= 0)
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426 extent[n] = 0;
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427 }
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428
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429 for (n = dim; n < rank; n++)
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430 {
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431 extent[n] =
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432 GFC_DESCRIPTOR_EXTENT(array,n + 1);
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433
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434 if (extent[n] <= 0)
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435 extent[n] = 0;
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436 }
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437
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438 if (retarray->base_addr == NULL)
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439 {
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440 size_t alloc_size, str;
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441
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442 for (n = 0; n < rank; n++)
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443 {
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444 if (n == 0)
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445 str = 1;
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446 else
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447 str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1];
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448
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449 GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str);
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450
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451 }
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452
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453 retarray->offset = 0;
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131
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454 retarray->dtype.rank = rank;
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111
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455
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456 alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1];
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457
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458 if (alloc_size == 0)
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459 {
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460 /* Make sure we have a zero-sized array. */
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461 GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
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462 return;
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463 }
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464 else
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465 retarray->base_addr = xmallocarray (alloc_size, sizeof (rtype_name));
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466 }
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467 else
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468 {
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469 if (rank != GFC_DESCRIPTOR_RANK (retarray))
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470 runtime_error ("rank of return array incorrect in"
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471 " u_name intrinsic: is %ld, should be %ld",
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472 (long int) (GFC_DESCRIPTOR_RANK (retarray)),
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473 (long int) rank);
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474
|
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475 if (unlikely (compile_options.bounds_check))
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476 {
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477 for (n=0; n < rank; n++)
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478 {
|
|
479 index_type ret_extent;
|
|
480
|
|
481 ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,n);
|
|
482 if (extent[n] != ret_extent)
|
|
483 runtime_error ("Incorrect extent in return value of"
|
|
484 " u_name intrinsic in dimension %ld:"
|
|
485 " is %ld, should be %ld", (long int) n + 1,
|
|
486 (long int) ret_extent, (long int) extent[n]);
|
|
487 }
|
|
488 }
|
|
489 }
|
|
490
|
|
491 for (n = 0; n < rank; n++)
|
|
492 {
|
|
493 count[n] = 0;
|
|
494 dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n);
|
|
495 }
|
|
496
|
|
497 dest = retarray->base_addr;
|
|
498
|
|
499 while(1)
|
|
500 {
|
|
501 *dest = '$1`;
|
|
502 count[0]++;
|
|
503 dest += dstride[0];
|
|
504 n = 0;
|
|
505 while (count[n] == extent[n])
|
|
506 {
|
|
507 /* When we get to the end of a dimension, reset it and increment
|
|
508 the next dimension. */
|
|
509 count[n] = 0;
|
|
510 /* We could precalculate these products, but this is a less
|
|
511 frequently used path so probably not worth it. */
|
|
512 dest -= dstride[n] * extent[n];
|
|
513 n++;
|
|
514 if (n >= rank)
|
|
515 return;
|
|
516 else
|
|
517 {
|
|
518 count[n]++;
|
|
519 dest += dstride[n];
|
|
520 }
|
|
521 }
|
|
522 }
|
|
523 }')dnl
|
|
524 define(ARRAY_FUNCTION,
|
|
525 `START_ARRAY_FUNCTION
|
|
526 $2
|
|
527 START_ARRAY_BLOCK($1)
|
|
528 $3
|
|
529 FINISH_ARRAY_FUNCTION($4)')dnl
|
|
530 define(MASKED_ARRAY_FUNCTION,
|
|
531 `START_MASKED_ARRAY_FUNCTION
|
|
532 $2
|
|
533 START_MASKED_ARRAY_BLOCK
|
|
534 $3
|
|
535 FINISH_MASKED_ARRAY_FUNCTION')dnl
|