Mercurial > hg > CbC > CbC_gcc
annotate gcc/graphite-interchange.c @ 64:d9bee9007a48
Added tag gcc-4.6-20100522 for changeset b7f97abdc517
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
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date | Mon, 24 May 2010 12:48:09 +0900 |
parents | b7f97abdc517 |
children | f6334be47118 |
rev | line source |
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55
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1 /* Interchange heuristics and transform for loop interchange on |
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2 polyhedral representation. |
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3 |
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4 Copyright (C) 2009 Free Software Foundation, Inc. |
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5 Contributed by Sebastian Pop <sebastian.pop@amd.com> and |
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6 Harsha Jagasia <harsha.jagasia@amd.com>. |
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7 |
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8 This file is part of GCC. |
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9 |
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10 GCC is free software; you can redistribute it and/or modify |
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11 it under the terms of the GNU General Public License as published by |
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12 the Free Software Foundation; either version 3, or (at your option) |
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13 any later version. |
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14 |
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15 GCC is distributed in the hope that it will be useful, |
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16 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 GNU General Public License for more details. |
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19 |
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20 You should have received a copy of the GNU General Public License |
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21 along with GCC; see the file COPYING3. If not see |
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22 <http://www.gnu.org/licenses/>. */ |
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23 #include "config.h" |
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24 #include "system.h" |
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25 #include "coretypes.h" |
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26 #include "tm.h" |
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27 #include "ggc.h" |
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28 #include "tree.h" |
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29 #include "rtl.h" |
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30 #include "output.h" |
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31 #include "basic-block.h" |
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32 #include "diagnostic.h" |
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33 #include "tree-flow.h" |
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34 #include "toplev.h" |
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35 #include "tree-dump.h" |
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36 #include "timevar.h" |
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37 #include "cfgloop.h" |
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38 #include "tree-chrec.h" |
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39 #include "tree-data-ref.h" |
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40 #include "tree-scalar-evolution.h" |
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41 #include "tree-pass.h" |
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42 #include "domwalk.h" |
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43 #include "value-prof.h" |
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44 #include "pointer-set.h" |
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45 #include "gimple.h" |
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46 #include "params.h" |
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47 |
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48 #ifdef HAVE_cloog |
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49 #include "cloog/cloog.h" |
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50 #include "ppl_c.h" |
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51 #include "sese.h" |
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52 #include "graphite-ppl.h" |
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53 #include "graphite.h" |
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54 #include "graphite-poly.h" |
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55 |
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56 /* Builds a linear expression, of dimension DIM, representing PDR's |
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57 memory access: |
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58 |
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59 L = r_{n}*r_{n-1}*...*r_{1}*s_{0} + ... + r_{n}*s_{n-1} + s_{n}. |
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60 |
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61 For an array A[10][20] with two subscript locations s0 and s1, the |
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62 linear memory access is 20 * s0 + s1: a stride of 1 in subscript s0 |
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63 corresponds to a memory stride of 20. |
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64 |
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65 OFFSET is a number of dimensions to prepend before the |
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66 subscript dimensions: s_0, s_1, ..., s_n. |
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67 |
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68 Thus, the final linear expression has the following format: |
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69 0 .. 0_{offset} | 0 .. 0_{nit} | 0 .. 0_{gd} | 0 | c_0 c_1 ... c_n |
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70 where the expression itself is: |
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71 c_0 * s_0 + c_1 * s_1 + ... c_n * s_n. */ |
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72 |
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73 static ppl_Linear_Expression_t |
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74 build_linearized_memory_access (ppl_dimension_type offset, poly_dr_p pdr) |
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75 { |
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76 ppl_Linear_Expression_t res; |
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77 ppl_Linear_Expression_t le; |
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78 ppl_dimension_type i; |
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79 ppl_dimension_type first = pdr_subscript_dim (pdr, 0); |
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80 ppl_dimension_type last = pdr_subscript_dim (pdr, PDR_NB_SUBSCRIPTS (pdr)); |
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81 mpz_t size, sub_size; |
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82 graphite_dim_t dim = offset + pdr_dim (pdr); |
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83 |
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84 ppl_new_Linear_Expression_with_dimension (&res, dim); |
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85 |
63
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86 mpz_init (size); |
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87 mpz_set_si (size, 1); |
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88 mpz_init (sub_size); |
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89 mpz_set_si (sub_size, 1); |
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90 |
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91 for (i = last - 1; i >= first; i--) |
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92 { |
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93 ppl_set_coef_gmp (res, i + offset, size); |
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94 |
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95 ppl_new_Linear_Expression_with_dimension (&le, dim - offset); |
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96 ppl_set_coef (le, i, 1); |
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97 ppl_max_for_le_pointset (PDR_ACCESSES (pdr), le, sub_size); |
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98 mpz_mul (size, size, sub_size); |
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99 ppl_delete_Linear_Expression (le); |
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100 } |
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101 |
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102 mpz_clear (sub_size); |
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103 mpz_clear (size); |
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104 return res; |
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105 } |
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106 |
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107 /* Builds a partial difference equations and inserts them |
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108 into pointset powerset polyhedron P. Polyhedron is assumed |
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109 to have the format: T|I|T'|I'|G|S|S'|l1|l2. |
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110 |
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111 TIME_DEPTH is the time dimension w.r.t. which we are |
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112 differentiating. |
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113 OFFSET represents the number of dimensions between |
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114 columns t_{time_depth} and t'_{time_depth}. |
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115 DIM_SCTR is the number of scattering dimensions. It is |
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116 essentially the dimensionality of the T vector. |
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117 |
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118 The following equations are inserted into the polyhedron P: |
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119 | t_1 = t_1' |
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120 | ... |
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121 | t_{time_depth-1} = t'_{time_depth-1} |
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122 | t_{time_depth} = t'_{time_depth} + 1 |
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123 | t_{time_depth+1} = t'_{time_depth + 1} |
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124 | ... |
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125 | t_{dim_sctr} = t'_{dim_sctr}. */ |
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126 |
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127 static void |
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128 build_partial_difference (ppl_Pointset_Powerset_C_Polyhedron_t *p, |
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129 ppl_dimension_type time_depth, |
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130 ppl_dimension_type offset, |
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131 ppl_dimension_type dim_sctr) |
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132 { |
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133 ppl_Constraint_t new_cstr; |
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134 ppl_Linear_Expression_t le; |
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135 ppl_dimension_type i; |
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136 ppl_dimension_type dim; |
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137 ppl_Pointset_Powerset_C_Polyhedron_t temp; |
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138 |
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139 /* Add the equality: t_{time_depth} = t'_{time_depth} + 1. |
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140 This is the core part of this alogrithm, since this |
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141 constraint asks for the memory access stride (difference) |
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142 between two consecutive points in time dimensions. */ |
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143 |
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144 ppl_Pointset_Powerset_C_Polyhedron_space_dimension (*p, &dim); |
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145 ppl_new_Linear_Expression_with_dimension (&le, dim); |
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146 ppl_set_coef (le, time_depth, 1); |
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147 ppl_set_coef (le, time_depth + offset, -1); |
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148 ppl_set_inhomogeneous (le, 1); |
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149 ppl_new_Constraint (&new_cstr, le, PPL_CONSTRAINT_TYPE_EQUAL); |
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150 ppl_Pointset_Powerset_C_Polyhedron_add_constraint (*p, new_cstr); |
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151 ppl_delete_Linear_Expression (le); |
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152 ppl_delete_Constraint (new_cstr); |
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153 |
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154 /* Add equalities: |
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155 | t1 = t1' |
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156 | ... |
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157 | t_{time_depth-1} = t'_{time_depth-1} |
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158 | t_{time_depth+1} = t'_{time_depth+1} |
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159 | ... |
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160 | t_{dim_sctr} = t'_{dim_sctr} |
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161 |
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162 This means that all the time dimensions are equal except for |
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163 time_depth, where the constraint is t_{depth} = t'_{depth} + 1 |
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164 step. More to this: we should be carefull not to add equalities |
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165 to the 'coupled' dimensions, which happens when the one dimension |
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166 is stripmined dimension, and the other dimension corresponds |
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167 to the point loop inside stripmined dimension. */ |
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168 |
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169 ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron (&temp, *p); |
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170 |
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171 for (i = 0; i < dim_sctr; i++) |
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172 if (i != time_depth) |
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173 { |
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174 ppl_new_Linear_Expression_with_dimension (&le, dim); |
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175 ppl_set_coef (le, i, 1); |
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176 ppl_set_coef (le, i + offset, -1); |
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177 ppl_new_Constraint (&new_cstr, le, PPL_CONSTRAINT_TYPE_EQUAL); |
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178 ppl_Pointset_Powerset_C_Polyhedron_add_constraint (temp, new_cstr); |
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179 |
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180 if (ppl_Pointset_Powerset_C_Polyhedron_is_empty (temp)) |
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181 { |
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182 ppl_delete_Pointset_Powerset_C_Polyhedron (temp); |
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183 ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron (&temp, *p); |
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184 } |
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185 else |
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186 ppl_Pointset_Powerset_C_Polyhedron_add_constraint (*p, new_cstr); |
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187 ppl_delete_Linear_Expression (le); |
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188 ppl_delete_Constraint (new_cstr); |
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189 } |
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190 |
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191 ppl_delete_Pointset_Powerset_C_Polyhedron (temp); |
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192 } |
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193 |
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194 |
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195 /* Set STRIDE to the stride of PDR in memory by advancing by one in |
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196 the loop at DEPTH. */ |
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197 |
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198 static void |
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199 pdr_stride_in_loop (mpz_t stride, graphite_dim_t depth, poly_dr_p pdr) |
55
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200 { |
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201 ppl_dimension_type time_depth; |
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202 ppl_Linear_Expression_t le, lma; |
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203 ppl_Constraint_t new_cstr; |
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204 ppl_dimension_type i, *map; |
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205 ppl_Pointset_Powerset_C_Polyhedron_t p1, p2, sctr; |
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206 graphite_dim_t nb_subscripts = PDR_NB_SUBSCRIPTS (pdr) + 1; |
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207 poly_bb_p pbb = PDR_PBB (pdr); |
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208 ppl_dimension_type offset = pbb_nb_scattering_transform (pbb) |
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209 + pbb_nb_local_vars (pbb) |
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210 + pbb_dim_iter_domain (pbb); |
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211 ppl_dimension_type offsetg = offset + pbb_nb_params (pbb); |
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212 ppl_dimension_type dim_sctr = pbb_nb_scattering_transform (pbb) |
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213 + pbb_nb_local_vars (pbb); |
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214 ppl_dimension_type dim_L1 = offset + offsetg + 2 * nb_subscripts; |
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215 ppl_dimension_type dim_L2 = offset + offsetg + 2 * nb_subscripts + 1; |
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216 ppl_dimension_type new_dim = offset + offsetg + 2 * nb_subscripts + 2; |
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217 |
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218 /* The resulting polyhedron should have the following format: |
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219 T|I|T'|I'|G|S|S'|l1|l2 |
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220 where: |
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221 | T = t_1..t_{dim_sctr} |
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222 | I = i_1..i_{dim_iter_domain} |
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223 | T'= t'_1..t'_{dim_sctr} |
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224 | I'= i'_1..i'_{dim_iter_domain} |
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225 | G = g_1..g_{nb_params} |
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226 | S = s_1..s_{nb_subscripts} |
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227 | S'= s'_1..s'_{nb_subscripts} |
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228 | l1 and l2 are scalars. |
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229 |
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230 Some invariants: |
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231 offset = dim_sctr + dim_iter_domain + nb_local_vars |
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232 offsetg = dim_sctr + dim_iter_domain + nb_local_vars + nb_params. */ |
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233 |
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234 /* Construct the T|I|0|0|G|0|0|0|0 part. */ |
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235 { |
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236 ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron |
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237 (&sctr, PBB_TRANSFORMED_SCATTERING (pbb)); |
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238 ppl_Pointset_Powerset_C_Polyhedron_add_space_dimensions_and_embed |
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239 (sctr, 2 * nb_subscripts + 2); |
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240 ppl_insert_dimensions_pointset (sctr, offset, offset); |
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241 } |
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242 |
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243 /* Construct the 0|I|0|0|G|S|0|0|0 part. */ |
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244 { |
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245 ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron |
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246 (&p1, PDR_ACCESSES (pdr)); |
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247 ppl_Pointset_Powerset_C_Polyhedron_add_space_dimensions_and_embed |
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248 (p1, nb_subscripts + 2); |
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249 ppl_insert_dimensions_pointset (p1, 0, dim_sctr); |
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250 ppl_insert_dimensions_pointset (p1, offset, offset); |
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251 } |
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252 |
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253 /* Construct the 0|0|0|0|0|S|0|l1|0 part. */ |
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254 { |
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255 lma = build_linearized_memory_access (offset + dim_sctr, pdr); |
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256 ppl_set_coef (lma, dim_L1, -1); |
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257 ppl_new_Constraint (&new_cstr, lma, PPL_CONSTRAINT_TYPE_EQUAL); |
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258 ppl_Pointset_Powerset_C_Polyhedron_add_constraint (p1, new_cstr); |
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259 ppl_delete_Linear_Expression (lma); |
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260 ppl_delete_Constraint (new_cstr); |
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261 } |
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262 |
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263 /* Now intersect all the parts to get the polyhedron P1: |
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264 T|I|0|0|G|0|0|0 |0 |
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265 0|I|0|0|G|S|0|0 |0 |
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266 0|0|0|0|0|S|0|l1|0 |
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267 ------------------ |
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268 T|I|0|0|G|S|0|l1|0. */ |
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269 |
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270 ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (p1, sctr); |
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271 ppl_delete_Pointset_Powerset_C_Polyhedron (sctr); |
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272 |
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273 /* Build P2, which would have the following form: |
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274 0|0|T'|I'|G|0|S'|0|l2 |
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275 |
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276 P2 is built, by remapping the P1 polyhedron: |
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277 T|I|0|0|G|S|0|l1|0 |
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278 |
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279 using the following mapping: |
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280 T->T' |
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281 I->I' |
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282 S->S' |
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283 l1->l2. */ |
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284 { |
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285 ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron |
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286 (&p2, p1); |
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287 |
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288 map = ppl_new_id_map (new_dim); |
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289 |
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290 /* TI -> T'I'. */ |
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291 for (i = 0; i < offset; i++) |
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292 ppl_interchange (map, i, i + offset); |
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293 |
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294 /* l1 -> l2. */ |
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295 ppl_interchange (map, dim_L1, dim_L2); |
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296 |
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297 /* S -> S'. */ |
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298 for (i = 0; i < nb_subscripts; i++) |
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299 ppl_interchange (map, offset + offsetg + i, |
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300 offset + offsetg + nb_subscripts + i); |
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301 |
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302 ppl_Pointset_Powerset_C_Polyhedron_map_space_dimensions (p2, map, new_dim); |
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303 free (map); |
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304 } |
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305 |
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306 time_depth = psct_dynamic_dim (pbb, depth); |
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307 |
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308 /* P1 = P1 inter P2. */ |
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309 ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (p1, p2); |
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310 build_partial_difference (&p1, time_depth, offset, dim_sctr); |
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311 |
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312 /* Maximise the expression L2 - L1. */ |
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313 { |
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314 ppl_new_Linear_Expression_with_dimension (&le, new_dim); |
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315 ppl_set_coef (le, dim_L2, 1); |
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316 ppl_set_coef (le, dim_L1, -1); |
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317 ppl_max_for_le_pointset (p1, le, stride); |
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318 } |
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319 |
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320 if (dump_file && (dump_flags & TDF_DETAILS)) |
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321 { |
63
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322 char *str; |
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323 void (*gmp_free) (void *, size_t); |
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324 |
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325 fprintf (dump_file, "\nStride in BB_%d, DR_%d, depth %d:", |
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326 pbb_index (pbb), PDR_ID (pdr), (int) depth); |
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327 str = mpz_get_str (0, 10, stride); |
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328 fprintf (dump_file, " %s ", str); |
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329 mp_get_memory_functions (NULL, NULL, &gmp_free); |
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330 (*gmp_free) (str, strlen (str) + 1); |
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331 } |
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332 |
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333 ppl_delete_Pointset_Powerset_C_Polyhedron (p1); |
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334 ppl_delete_Pointset_Powerset_C_Polyhedron (p2); |
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335 ppl_delete_Linear_Expression (le); |
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336 } |
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337 |
63
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338 |
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339 /* Sets STRIDES to the sum of all the strides of the data references |
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340 accessed in LOOP at DEPTH. */ |
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341 |
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342 static void |
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343 memory_strides_in_loop_1 (lst_p loop, graphite_dim_t depth, mpz_t strides) |
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344 { |
63
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345 int i, j; |
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346 lst_p l; |
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347 poly_dr_p pdr; |
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348 mpz_t s, n; |
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349 |
63
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350 mpz_init (s); |
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351 mpz_init (n); |
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352 |
63
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353 for (j = 0; VEC_iterate (lst_p, LST_SEQ (loop), j, l); j++) |
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354 if (LST_LOOP_P (l)) |
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355 memory_strides_in_loop_1 (l, depth, strides); |
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356 else |
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357 for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (LST_PBB (l)), i, pdr); i++) |
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358 { |
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359 pdr_stride_in_loop (s, depth, pdr); |
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360 mpz_set_si (n, PDR_NB_REFS (pdr)); |
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361 mpz_mul (s, s, n); |
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362 mpz_add (strides, strides, s); |
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363 } |
55
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364 |
63
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365 mpz_clear (s); |
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366 mpz_clear (n); |
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367 } |
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368 |
63
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369 /* Sets STRIDES to the sum of all the strides of the data references |
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370 accessed in LOOP at DEPTH. */ |
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371 |
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372 static void |
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373 memory_strides_in_loop (lst_p loop, graphite_dim_t depth, mpz_t strides) |
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374 { |
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375 if (mpz_cmp_si (loop->memory_strides, -1) == 0) |
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376 { |
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377 mpz_set_si (strides, 0); |
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378 memory_strides_in_loop_1 (loop, depth, strides); |
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379 } |
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380 else |
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381 mpz_set (strides, loop->memory_strides); |
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382 } |
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383 |
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384 /* Return true when the interchange of loops LOOP1 and LOOP2 is |
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385 profitable. |
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386 |
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387 Example: |
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388 |
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389 | int a[100][100]; |
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390 | |
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391 | int |
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392 | foo (int N) |
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393 | { |
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394 | int j; |
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395 | int i; |
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396 | |
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397 | for (i = 0; i < N; i++) |
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398 | for (j = 0; j < N; j++) |
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399 | a[j][2 * i] += 1; |
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400 | |
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401 | return a[N][12]; |
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402 | } |
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403 |
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404 The data access A[j][i] is described like this: |
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405 |
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406 | i j N a s0 s1 1 |
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407 | 0 0 0 1 0 0 -5 = 0 |
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408 | 0 -1 0 0 1 0 0 = 0 |
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409 |-2 0 0 0 0 1 0 = 0 |
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410 | 0 0 0 0 1 0 0 >= 0 |
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411 | 0 0 0 0 0 1 0 >= 0 |
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412 | 0 0 0 0 -1 0 100 >= 0 |
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413 | 0 0 0 0 0 -1 100 >= 0 |
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414 |
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415 The linearized memory access L to A[100][100] is: |
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416 |
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417 | i j N a s0 s1 1 |
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418 | 0 0 0 0 100 1 0 |
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419 |
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420 TODO: the shown format is not valid as it does not show the fact |
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421 that the iteration domain "i j" is transformed using the scattering. |
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422 |
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423 Next, to measure the impact of iterating once in loop "i", we build |
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424 a maximization problem: first, we add to DR accesses the dimensions |
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425 k, s2, s3, L1 = 100 * s0 + s1, L2, and D1: this is the polyhedron P1. |
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426 L1 and L2 are the linearized memory access functions. |
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diff
changeset
|
427 |
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parents:
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428 | i j N a s0 s1 k s2 s3 L1 L2 D1 1 |
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parents:
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429 | 0 0 0 1 0 0 0 0 0 0 0 0 -5 = 0 alias = 5 |
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parents:
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430 | 0 -1 0 0 1 0 0 0 0 0 0 0 0 = 0 s0 = j |
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parents:
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431 |-2 0 0 0 0 1 0 0 0 0 0 0 0 = 0 s1 = 2 * i |
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parents:
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432 | 0 0 0 0 1 0 0 0 0 0 0 0 0 >= 0 |
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parents:
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433 | 0 0 0 0 0 1 0 0 0 0 0 0 0 >= 0 |
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parents:
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434 | 0 0 0 0 -1 0 0 0 0 0 0 0 100 >= 0 |
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parents:
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435 | 0 0 0 0 0 -1 0 0 0 0 0 0 100 >= 0 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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436 | 0 0 0 0 100 1 0 0 0 -1 0 0 0 = 0 L1 = 100 * s0 + s1 |
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parents:
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|
437 |
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parents:
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438 Then, we generate the polyhedron P2 by interchanging the dimensions |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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439 (s0, s2), (s1, s3), (L1, L2), (k, i) |
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parents:
diff
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440 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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441 | i j N a s0 s1 k s2 s3 L1 L2 D1 1 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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442 | 0 0 0 1 0 0 0 0 0 0 0 0 -5 = 0 alias = 5 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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443 | 0 -1 0 0 0 0 0 1 0 0 0 0 0 = 0 s2 = j |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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444 | 0 0 0 0 0 0 -2 0 1 0 0 0 0 = 0 s3 = 2 * k |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
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445 | 0 0 0 0 0 0 0 1 0 0 0 0 0 >= 0 |
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parents:
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446 | 0 0 0 0 0 0 0 0 1 0 0 0 0 >= 0 |
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parents:
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447 | 0 0 0 0 0 0 0 -1 0 0 0 0 100 >= 0 |
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parents:
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448 | 0 0 0 0 0 0 0 0 -1 0 0 0 100 >= 0 |
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parents:
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449 | 0 0 0 0 0 0 0 100 1 0 -1 0 0 = 0 L2 = 100 * s2 + s3 |
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parents:
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450 |
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parents:
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451 then we add to P2 the equality k = i + 1: |
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parents:
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452 |
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parents:
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453 |-1 0 0 0 0 0 1 0 0 0 0 0 -1 = 0 k = i + 1 |
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parents:
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454 |
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parents:
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455 and finally we maximize the expression "D1 = max (P1 inter P2, L2 - L1)". |
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parents:
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456 |
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parents:
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457 Similarly, to determine the impact of one iteration on loop "j", we |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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458 interchange (k, j), we add "k = j + 1", and we compute D2 the |
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parents:
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459 maximal value of the difference. |
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parents:
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|
460 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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461 Finally, the profitability test is D1 < D2: if in the outer loop |
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parents:
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|
462 the strides are smaller than in the inner loop, then it is |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
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463 profitable to interchange the loops at DEPTH1 and DEPTH2. */ |
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parents:
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464 |
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parents:
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465 static bool |
63
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parents:
55
diff
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|
466 lst_interchange_profitable_p (lst_p loop1, lst_p loop2) |
55
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parents:
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|
467 { |
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
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468 mpz_t d1, d2; |
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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469 bool res; |
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parents:
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|
470 |
63
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parents:
55
diff
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|
471 gcc_assert (loop1 && loop2 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
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472 && LST_LOOP_P (loop1) && LST_LOOP_P (loop2) |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
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473 && lst_depth (loop1) < lst_depth (loop2)); |
55
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parents:
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|
474 |
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
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|
475 mpz_init (d1); |
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parents:
55
diff
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|
476 mpz_init (d2); |
55
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parents:
diff
changeset
|
477 |
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
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|
478 memory_strides_in_loop (loop1, lst_depth (loop1), d1); |
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parents:
55
diff
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|
479 memory_strides_in_loop (loop2, lst_depth (loop2), d2); |
55
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parents:
diff
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|
480 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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|
481 res = value_lt (d1, d2); |
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parents:
diff
changeset
|
482 |
63
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parents:
55
diff
changeset
|
483 mpz_clear (d1); |
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parents:
55
diff
changeset
|
484 mpz_clear (d2); |
55
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parents:
diff
changeset
|
485 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
486 return res; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
487 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
488 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
489 /* Interchanges the loops at DEPTH1 and DEPTH2 of the original |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
490 scattering and assigns the resulting polyhedron to the transformed |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
491 scattering. */ |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
492 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
493 static void |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
494 pbb_interchange_loop_depths (graphite_dim_t depth1, graphite_dim_t depth2, |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
495 poly_bb_p pbb) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
496 { |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
497 ppl_dimension_type i, dim; |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
498 ppl_dimension_type *map; |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
499 ppl_Polyhedron_t poly = PBB_TRANSFORMED_SCATTERING (pbb); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
500 ppl_dimension_type dim1 = psct_dynamic_dim (pbb, depth1); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
501 ppl_dimension_type dim2 = psct_dynamic_dim (pbb, depth2); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
502 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
503 ppl_Polyhedron_space_dimension (poly, &dim); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
504 map = (ppl_dimension_type *) XNEWVEC (ppl_dimension_type, dim); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
505 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
506 for (i = 0; i < dim; i++) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
507 map[i] = i; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
508 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
509 map[dim1] = dim2; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
510 map[dim2] = dim1; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
511 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
512 ppl_Polyhedron_map_space_dimensions (poly, map, dim); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
513 free (map); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
514 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
515 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
516 /* Apply the interchange of loops at depths DEPTH1 and DEPTH2 to all |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
517 the statements below LST. */ |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
518 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
519 static void |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
520 lst_apply_interchange (lst_p lst, int depth1, int depth2) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
521 { |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
522 if (!lst) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
523 return; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
524 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
525 if (LST_LOOP_P (lst)) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
526 { |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
527 int i; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
528 lst_p l; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
529 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
530 for (i = 0; VEC_iterate (lst_p, LST_SEQ (lst), i, l); i++) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
531 lst_apply_interchange (l, depth1, depth2); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
532 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
533 else |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
534 pbb_interchange_loop_depths (depth1, depth2, LST_PBB (lst)); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
535 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
536 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
537 /* Return true when the nest starting at LOOP1 and ending on LOOP2 is |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
538 perfect: i.e. there are no sequence of statements. */ |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
539 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
540 static bool |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
541 lst_perfectly_nested_p (lst_p loop1, lst_p loop2) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
542 { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
543 if (loop1 == loop2) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
544 return true; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
545 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
546 if (!LST_LOOP_P (loop1)) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
547 return false; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
548 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
549 return VEC_length (lst_p, LST_SEQ (loop1)) == 1 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
550 && lst_perfectly_nested_p (VEC_index (lst_p, LST_SEQ (loop1), 0), loop2); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
551 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
552 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
553 /* Transform the loop nest between LOOP1 and LOOP2 into a perfect |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
554 nest. To continue the naming tradition, this function is called |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
555 after perfect_nestify. NEST is set to the perfectly nested loop |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
556 that is created. BEFORE/AFTER are set to the loops distributed |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
557 before/after the loop NEST. */ |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
558 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
559 static void |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
560 lst_perfect_nestify (lst_p loop1, lst_p loop2, lst_p *before, |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
561 lst_p *nest, lst_p *after) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
562 { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
563 poly_bb_p first, last; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
564 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
565 gcc_assert (loop1 && loop2 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
566 && loop1 != loop2 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
567 && LST_LOOP_P (loop1) && LST_LOOP_P (loop2)); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
568 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
569 first = LST_PBB (lst_find_first_pbb (loop2)); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
570 last = LST_PBB (lst_find_last_pbb (loop2)); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
571 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
572 *before = copy_lst (loop1); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
573 *nest = copy_lst (loop1); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
574 *after = copy_lst (loop1); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
575 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
576 lst_remove_all_before_including_pbb (*before, first, false); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
577 lst_remove_all_before_including_pbb (*after, last, true); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
578 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
579 lst_remove_all_before_excluding_pbb (*nest, first, true); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
580 lst_remove_all_before_excluding_pbb (*nest, last, false); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
581 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
582 if (lst_empty_p (*before)) |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
583 { |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
584 free_lst (*before); |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
585 *before = NULL; |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
586 } |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
587 if (lst_empty_p (*after)) |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
588 { |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
589 free_lst (*after); |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
590 *after = NULL; |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
591 } |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
592 if (lst_empty_p (*nest)) |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
593 { |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
594 free_lst (*nest); |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
595 *nest = NULL; |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
596 } |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
597 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
598 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
599 /* Try to interchange LOOP1 with LOOP2 for all the statements of the |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
600 body of LOOP2. LOOP1 contains LOOP2. Return true if it did the |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
601 interchange. */ |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
602 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
603 static bool |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
604 lst_try_interchange_loops (scop_p scop, lst_p loop1, lst_p loop2) |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
605 { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
606 int depth1 = lst_depth (loop1); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
607 int depth2 = lst_depth (loop2); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
608 lst_p transformed; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
609 |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
610 lst_p before = NULL, nest = NULL, after = NULL; |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
611 |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
612 if (!lst_interchange_profitable_p (loop1, loop2)) |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
613 return false; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
614 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
615 if (!lst_perfectly_nested_p (loop1, loop2)) |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
616 lst_perfect_nestify (loop1, loop2, &before, &nest, &after); |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
617 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
618 lst_apply_interchange (loop2, depth1, depth2); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
619 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
620 /* Sync the transformed LST information and the PBB scatterings |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
621 before using the scatterings in the data dependence analysis. */ |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
622 if (before || nest || after) |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
623 { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
624 transformed = lst_substitute_3 (SCOP_TRANSFORMED_SCHEDULE (scop), loop1, |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
625 before, nest, after); |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
626 lst_update_scattering (transformed); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
627 free_lst (transformed); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
628 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
629 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
630 if (graphite_legal_transform (scop)) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
631 { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
632 if (dump_file && (dump_flags & TDF_DETAILS)) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
633 fprintf (dump_file, |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
634 "Loops at depths %d and %d will be interchanged.\n", |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
635 depth1, depth2); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
636 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
637 /* Transform the SCOP_TRANSFORMED_SCHEDULE of the SCOP. */ |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
638 lst_insert_in_sequence (before, loop1, true); |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
639 lst_insert_in_sequence (after, loop1, false); |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
640 |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
641 if (nest) |
55
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
642 { |
63
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parents:
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diff
changeset
|
643 lst_replace (loop1, nest); |
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
644 free_lst (loop1); |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
645 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
646 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
647 return true; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
648 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
649 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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|
650 /* Undo the transform. */ |
63
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parents:
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|
651 free_lst (before); |
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parents:
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diff
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|
652 free_lst (nest); |
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parents:
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diff
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|
653 free_lst (after); |
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
654 lst_apply_interchange (loop2, depth2, depth1); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
655 return false; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
656 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
657 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
658 /* Selects the inner loop in LST_SEQ (INNER_FATHER) to be interchanged |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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659 with the loop OUTER in LST_SEQ (OUTER_FATHER). */ |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
660 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
661 static bool |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
662 lst_interchange_select_inner (scop_p scop, lst_p outer_father, int outer, |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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663 lst_p inner_father) |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
664 { |
77e2b8dfacca
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parents:
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|
665 int inner; |
63
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parents:
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666 lst_p loop1, loop2; |
55
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parents:
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|
667 |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
668 gcc_assert (outer_father |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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|
669 && LST_LOOP_P (outer_father) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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|
670 && LST_LOOP_P (VEC_index (lst_p, LST_SEQ (outer_father), outer)) |
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parents:
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changeset
|
671 && inner_father |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
|
672 && LST_LOOP_P (inner_father)); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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|
673 |
63
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parents:
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674 loop1 = VEC_index (lst_p, LST_SEQ (outer_father), outer); |
55
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parents:
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changeset
|
675 |
63
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parents:
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676 for (inner = 0; VEC_iterate (lst_p, LST_SEQ (inner_father), inner, loop2); inner++) |
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parents:
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diff
changeset
|
677 if (LST_LOOP_P (loop2) |
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parents:
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|
678 && (lst_try_interchange_loops (scop, loop1, loop2) |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
679 || lst_interchange_select_inner (scop, outer_father, outer, loop2))) |
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parents:
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diff
changeset
|
680 return true; |
b7f97abdc517
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parents:
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diff
changeset
|
681 |
b7f97abdc517
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parents:
55
diff
changeset
|
682 return false; |
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
683 } |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
684 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
685 /* Interchanges all the loops of LOOP and the loops of its body that |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
686 are considered profitable to interchange. Return true if it did |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
687 interchanged some loops. OUTER is the index in LST_SEQ (LOOP) that |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
688 points to the next outer loop to be considered for interchange. */ |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
689 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
690 static bool |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
691 lst_interchange_select_outer (scop_p scop, lst_p loop, int outer) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
692 { |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
693 lst_p l; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
694 bool res = false; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
695 int i = 0; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
696 lst_p father; |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
697 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
698 if (!loop || !LST_LOOP_P (loop)) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
699 return false; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
700 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
701 father = LST_LOOP_FATHER (loop); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
702 if (father) |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
703 { |
63
b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
704 while (lst_interchange_select_inner (scop, father, outer, loop)) |
b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
705 { |
b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
706 res = true; |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
707 loop = VEC_index (lst_p, LST_SEQ (father), outer); |
b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
708 } |
55
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
709 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
710 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
711 if (LST_LOOP_P (loop)) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
712 for (i = 0; VEC_iterate (lst_p, LST_SEQ (loop), i, l); i++) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
713 if (LST_LOOP_P (l)) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
714 res |= lst_interchange_select_outer (scop, l, i); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
715 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
716 return res; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
717 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
718 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
719 /* Interchanges all the loop depths that are considered profitable for SCOP. */ |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
720 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
721 bool |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
722 scop_do_interchange (scop_p scop) |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
723 { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
724 bool res = lst_interchange_select_outer |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
725 (scop, SCOP_TRANSFORMED_SCHEDULE (scop), 0); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
726 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
727 lst_update_scattering (SCOP_TRANSFORMED_SCHEDULE (scop)); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
728 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
729 return res; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
730 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
731 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
732 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
733 #endif |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
734 |