111
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1 /* Implementation of the PRODUCT intrinsic
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2 Copyright (C) 2002-2017 Free Software Foundation, Inc.
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3 Contributed by Paul Brook <paul@nowt.org>
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4
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5 This file is part of the GNU Fortran runtime library (libgfortran).
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6
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7 Libgfortran is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU General Public
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9 License as published by the Free Software Foundation; either
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10 version 3 of the License, or (at your option) any later version.
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11
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12 Libgfortran 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 Under Section 7 of GPL version 3, you are granted additional
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18 permissions described in the GCC Runtime Library Exception, version
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19 3.1, as published by the Free Software Foundation.
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20
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21 You should have received a copy of the GNU General Public License and
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22 a copy of the GCC Runtime Library Exception along with this program;
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23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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24 <http://www.gnu.org/licenses/>. */
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25
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26 #include "libgfortran.h"
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27
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28
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29 #if defined (HAVE_GFC_COMPLEX_16) && defined (HAVE_GFC_COMPLEX_16)
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30
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31
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32 extern void product_c16 (gfc_array_c16 * const restrict,
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33 gfc_array_c16 * const restrict, const index_type * const restrict);
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34 export_proto(product_c16);
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35
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36 void
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37 product_c16 (gfc_array_c16 * const restrict retarray,
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38 gfc_array_c16 * const restrict array,
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39 const index_type * const restrict pdim)
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40 {
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41 index_type count[GFC_MAX_DIMENSIONS];
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42 index_type extent[GFC_MAX_DIMENSIONS];
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43 index_type sstride[GFC_MAX_DIMENSIONS];
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44 index_type dstride[GFC_MAX_DIMENSIONS];
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45 const GFC_COMPLEX_16 * restrict base;
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46 GFC_COMPLEX_16 * restrict dest;
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47 index_type rank;
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48 index_type n;
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49 index_type len;
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50 index_type delta;
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51 index_type dim;
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52 int continue_loop;
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53
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54 /* Make dim zero based to avoid confusion. */
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55 rank = GFC_DESCRIPTOR_RANK (array) - 1;
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56 dim = (*pdim) - 1;
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57
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58 if (unlikely (dim < 0 || dim > rank))
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59 {
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60 runtime_error ("Dim argument incorrect in PRODUCT intrinsic: "
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61 "is %ld, should be between 1 and %ld",
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62 (long int) dim + 1, (long int) rank + 1);
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63 }
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64
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65 len = GFC_DESCRIPTOR_EXTENT(array,dim);
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66 if (len < 0)
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67 len = 0;
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68 delta = GFC_DESCRIPTOR_STRIDE(array,dim);
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69
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70 for (n = 0; n < dim; n++)
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71 {
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72 sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
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73 extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
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74
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75 if (extent[n] < 0)
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76 extent[n] = 0;
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77 }
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78 for (n = dim; n < rank; n++)
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79 {
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80 sstride[n] = GFC_DESCRIPTOR_STRIDE(array, n + 1);
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81 extent[n] = GFC_DESCRIPTOR_EXTENT(array, n + 1);
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82
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83 if (extent[n] < 0)
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84 extent[n] = 0;
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85 }
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86
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87 if (retarray->base_addr == NULL)
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88 {
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89 size_t alloc_size, str;
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90
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91 for (n = 0; n < rank; n++)
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92 {
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93 if (n == 0)
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94 str = 1;
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95 else
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96 str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1];
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97
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98 GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str);
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99
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100 }
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101
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102 retarray->offset = 0;
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103 retarray->dtype = (array->dtype & ~GFC_DTYPE_RANK_MASK) | rank;
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104
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105 alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1];
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106
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107 retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_COMPLEX_16));
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108 if (alloc_size == 0)
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109 {
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110 /* Make sure we have a zero-sized array. */
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111 GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
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112 return;
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113
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114 }
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115 }
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116 else
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117 {
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118 if (rank != GFC_DESCRIPTOR_RANK (retarray))
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119 runtime_error ("rank of return array incorrect in"
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120 " PRODUCT intrinsic: is %ld, should be %ld",
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121 (long int) (GFC_DESCRIPTOR_RANK (retarray)),
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122 (long int) rank);
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123
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124 if (unlikely (compile_options.bounds_check))
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125 bounds_ifunction_return ((array_t *) retarray, extent,
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126 "return value", "PRODUCT");
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127 }
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128
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129 for (n = 0; n < rank; n++)
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130 {
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131 count[n] = 0;
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132 dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n);
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133 if (extent[n] <= 0)
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134 return;
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135 }
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136
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137 base = array->base_addr;
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138 dest = retarray->base_addr;
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139
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140 continue_loop = 1;
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141 while (continue_loop)
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142 {
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143 const GFC_COMPLEX_16 * restrict src;
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144 GFC_COMPLEX_16 result;
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145 src = base;
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146 {
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147
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148 result = 1;
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149 if (len <= 0)
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150 *dest = 1;
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151 else
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152 {
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153 for (n = 0; n < len; n++, src += delta)
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154 {
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155
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156 result *= *src;
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157 }
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158
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159 *dest = result;
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160 }
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161 }
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162 /* Advance to the next element. */
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163 count[0]++;
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164 base += sstride[0];
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165 dest += dstride[0];
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166 n = 0;
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167 while (count[n] == extent[n])
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168 {
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169 /* When we get to the end of a dimension, reset it and increment
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170 the next dimension. */
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171 count[n] = 0;
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172 /* We could precalculate these products, but this is a less
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173 frequently used path so probably not worth it. */
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174 base -= sstride[n] * extent[n];
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175 dest -= dstride[n] * extent[n];
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176 n++;
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177 if (n >= rank)
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178 {
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179 /* Break out of the loop. */
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180 continue_loop = 0;
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181 break;
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182 }
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183 else
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184 {
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185 count[n]++;
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186 base += sstride[n];
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187 dest += dstride[n];
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188 }
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189 }
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190 }
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191 }
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192
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193
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194 extern void mproduct_c16 (gfc_array_c16 * const restrict,
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195 gfc_array_c16 * const restrict, const index_type * const restrict,
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196 gfc_array_l1 * const restrict);
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197 export_proto(mproduct_c16);
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198
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199 void
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200 mproduct_c16 (gfc_array_c16 * const restrict retarray,
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201 gfc_array_c16 * const restrict array,
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202 const index_type * const restrict pdim,
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203 gfc_array_l1 * const restrict mask)
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204 {
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205 index_type count[GFC_MAX_DIMENSIONS];
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206 index_type extent[GFC_MAX_DIMENSIONS];
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207 index_type sstride[GFC_MAX_DIMENSIONS];
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208 index_type dstride[GFC_MAX_DIMENSIONS];
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209 index_type mstride[GFC_MAX_DIMENSIONS];
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210 GFC_COMPLEX_16 * restrict dest;
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211 const GFC_COMPLEX_16 * restrict base;
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212 const GFC_LOGICAL_1 * restrict mbase;
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213 index_type rank;
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214 index_type dim;
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215 index_type n;
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216 index_type len;
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217 index_type delta;
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218 index_type mdelta;
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219 int mask_kind;
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220
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221 dim = (*pdim) - 1;
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222 rank = GFC_DESCRIPTOR_RANK (array) - 1;
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223
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224
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225 if (unlikely (dim < 0 || dim > rank))
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226 {
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227 runtime_error ("Dim argument incorrect in PRODUCT intrinsic: "
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228 "is %ld, should be between 1 and %ld",
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229 (long int) dim + 1, (long int) rank + 1);
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230 }
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231
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232 len = GFC_DESCRIPTOR_EXTENT(array,dim);
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233 if (len <= 0)
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234 return;
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235
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236 mbase = mask->base_addr;
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237
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238 mask_kind = GFC_DESCRIPTOR_SIZE (mask);
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239
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240 if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8
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241 #ifdef HAVE_GFC_LOGICAL_16
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242 || mask_kind == 16
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243 #endif
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244 )
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245 mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind);
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246 else
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247 runtime_error ("Funny sized logical array");
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248
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249 delta = GFC_DESCRIPTOR_STRIDE(array,dim);
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250 mdelta = GFC_DESCRIPTOR_STRIDE_BYTES(mask,dim);
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251
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252 for (n = 0; n < dim; n++)
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253 {
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254 sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
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255 mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n);
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256 extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
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257
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258 if (extent[n] < 0)
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259 extent[n] = 0;
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260
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261 }
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262 for (n = dim; n < rank; n++)
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263 {
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264 sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n + 1);
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265 mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n + 1);
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266 extent[n] = GFC_DESCRIPTOR_EXTENT(array, n + 1);
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267
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268 if (extent[n] < 0)
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269 extent[n] = 0;
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270 }
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271
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272 if (retarray->base_addr == NULL)
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273 {
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274 size_t alloc_size, str;
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275
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276 for (n = 0; n < rank; n++)
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277 {
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278 if (n == 0)
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279 str = 1;
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280 else
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281 str= GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1];
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282
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283 GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str);
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284
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285 }
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286
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287 alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1];
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288
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289 retarray->offset = 0;
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290 retarray->dtype = (array->dtype & ~GFC_DTYPE_RANK_MASK) | rank;
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291
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292 if (alloc_size == 0)
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293 {
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294 /* Make sure we have a zero-sized array. */
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295 GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
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296 return;
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297 }
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298 else
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299 retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_COMPLEX_16));
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300
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301 }
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302 else
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303 {
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304 if (rank != GFC_DESCRIPTOR_RANK (retarray))
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305 runtime_error ("rank of return array incorrect in PRODUCT intrinsic");
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306
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307 if (unlikely (compile_options.bounds_check))
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308 {
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309 bounds_ifunction_return ((array_t *) retarray, extent,
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310 "return value", "PRODUCT");
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311 bounds_equal_extents ((array_t *) mask, (array_t *) array,
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312 "MASK argument", "PRODUCT");
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313 }
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314 }
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315
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316 for (n = 0; n < rank; n++)
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317 {
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318 count[n] = 0;
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319 dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n);
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320 if (extent[n] <= 0)
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321 return;
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322 }
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323
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324 dest = retarray->base_addr;
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325 base = array->base_addr;
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326
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327 while (base)
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328 {
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329 const GFC_COMPLEX_16 * restrict src;
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330 const GFC_LOGICAL_1 * restrict msrc;
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331 GFC_COMPLEX_16 result;
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332 src = base;
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333 msrc = mbase;
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334 {
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335
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336 result = 1;
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337 for (n = 0; n < len; n++, src += delta, msrc += mdelta)
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338 {
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339
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340 if (*msrc)
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341 result *= *src;
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342 }
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343 *dest = result;
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344 }
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345 /* Advance to the next element. */
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346 count[0]++;
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347 base += sstride[0];
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348 mbase += mstride[0];
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349 dest += dstride[0];
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350 n = 0;
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351 while (count[n] == extent[n])
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352 {
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353 /* When we get to the end of a dimension, reset it and increment
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354 the next dimension. */
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355 count[n] = 0;
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356 /* We could precalculate these products, but this is a less
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357 frequently used path so probably not worth it. */
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358 base -= sstride[n] * extent[n];
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359 mbase -= mstride[n] * extent[n];
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360 dest -= dstride[n] * extent[n];
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361 n++;
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362 if (n >= rank)
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363 {
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364 /* Break out of the loop. */
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365 base = NULL;
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366 break;
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367 }
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368 else
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369 {
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370 count[n]++;
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371 base += sstride[n];
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372 mbase += mstride[n];
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373 dest += dstride[n];
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374 }
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375 }
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376 }
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377 }
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378
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379
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380 extern void sproduct_c16 (gfc_array_c16 * const restrict,
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381 gfc_array_c16 * const restrict, const index_type * const restrict,
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382 GFC_LOGICAL_4 *);
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383 export_proto(sproduct_c16);
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384
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385 void
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386 sproduct_c16 (gfc_array_c16 * const restrict retarray,
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387 gfc_array_c16 * const restrict array,
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388 const index_type * const restrict pdim,
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389 GFC_LOGICAL_4 * mask)
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390 {
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391 index_type count[GFC_MAX_DIMENSIONS];
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392 index_type extent[GFC_MAX_DIMENSIONS];
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393 index_type dstride[GFC_MAX_DIMENSIONS];
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394 GFC_COMPLEX_16 * restrict dest;
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395 index_type rank;
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396 index_type n;
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397 index_type dim;
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398
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399
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400 if (*mask)
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401 {
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402 product_c16 (retarray, array, pdim);
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403 return;
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404 }
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405 /* Make dim zero based to avoid confusion. */
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406 dim = (*pdim) - 1;
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407 rank = GFC_DESCRIPTOR_RANK (array) - 1;
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408
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409 if (unlikely (dim < 0 || dim > rank))
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410 {
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411 runtime_error ("Dim argument incorrect in PRODUCT intrinsic: "
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412 "is %ld, should be between 1 and %ld",
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413 (long int) dim + 1, (long int) rank + 1);
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414 }
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415
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416 for (n = 0; n < dim; n++)
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417 {
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418 extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
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419
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420 if (extent[n] <= 0)
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421 extent[n] = 0;
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422 }
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423
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424 for (n = dim; n < rank; n++)
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425 {
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426 extent[n] =
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427 GFC_DESCRIPTOR_EXTENT(array,n + 1);
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428
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429 if (extent[n] <= 0)
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430 extent[n] = 0;
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431 }
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432
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433 if (retarray->base_addr == NULL)
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434 {
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435 size_t alloc_size, str;
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436
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437 for (n = 0; n < rank; n++)
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438 {
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439 if (n == 0)
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440 str = 1;
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441 else
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442 str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1];
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443
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444 GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str);
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445
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446 }
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447
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448 retarray->offset = 0;
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449 retarray->dtype = (array->dtype & ~GFC_DTYPE_RANK_MASK) | rank;
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450
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451 alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1];
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452
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453 if (alloc_size == 0)
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454 {
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455 /* Make sure we have a zero-sized array. */
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456 GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
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457 return;
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458 }
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459 else
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460 retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_COMPLEX_16));
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461 }
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462 else
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463 {
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464 if (rank != GFC_DESCRIPTOR_RANK (retarray))
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465 runtime_error ("rank of return array incorrect in"
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466 " PRODUCT intrinsic: is %ld, should be %ld",
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467 (long int) (GFC_DESCRIPTOR_RANK (retarray)),
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468 (long int) rank);
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469
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470 if (unlikely (compile_options.bounds_check))
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471 {
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472 for (n=0; n < rank; n++)
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473 {
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474 index_type ret_extent;
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475
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476 ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,n);
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477 if (extent[n] != ret_extent)
|
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478 runtime_error ("Incorrect extent in return value of"
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479 " PRODUCT intrinsic in dimension %ld:"
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480 " is %ld, should be %ld", (long int) n + 1,
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481 (long int) ret_extent, (long int) extent[n]);
|
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482 }
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483 }
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484 }
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485
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486 for (n = 0; n < rank; n++)
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487 {
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488 count[n] = 0;
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489 dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n);
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490 }
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491
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492 dest = retarray->base_addr;
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493
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494 while(1)
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495 {
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496 *dest = 1;
|
|
497 count[0]++;
|
|
498 dest += dstride[0];
|
|
499 n = 0;
|
|
500 while (count[n] == extent[n])
|
|
501 {
|
|
502 /* When we get to the end of a dimension, reset it and increment
|
|
503 the next dimension. */
|
|
504 count[n] = 0;
|
|
505 /* We could precalculate these products, but this is a less
|
|
506 frequently used path so probably not worth it. */
|
|
507 dest -= dstride[n] * extent[n];
|
|
508 n++;
|
|
509 if (n >= rank)
|
|
510 return;
|
|
511 else
|
|
512 {
|
|
513 count[n]++;
|
|
514 dest += dstride[n];
|
|
515 }
|
|
516 }
|
|
517 }
|
|
518 }
|
|
519
|
|
520 #endif
|