Mercurial > hg > CbC > CbC_gcc

annotate gcc/cgraphbuild.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* Callgraph construction.
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2 Copyright (C) 2003-2018 Free Software Foundation, Inc.
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3 Contributed by Jan Hubicka
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "config.h"
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22 #include "system.h"
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23 #include "coretypes.h"
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24 #include "backend.h"
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25 #include "tree.h"
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26 #include "gimple.h"
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27 #include "tree-pass.h"
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28 #include "cgraph.h"
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29 #include "gimple-fold.h"
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30 #include "gimple-iterator.h"
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31 #include "gimple-walk.h"
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32 #include "ipa-utils.h"
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33 #include "except.h"
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34
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35 /* Context of record_reference. */
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36 struct record_reference_ctx
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37 {
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38 bool only_vars;
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39 class varpool_node *varpool_node;
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40 };
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41
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42 /* Walk tree and record all calls and references to functions/variables.
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43 Called via walk_tree: TP is pointer to tree to be examined.
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44 When DATA is non-null, record references to callgraph.
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45 */
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46
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47 static tree
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48 record_reference (tree *tp, int *walk_subtrees, void *data)
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49 {
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50 tree t = *tp;
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51 tree decl;
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52 record_reference_ctx *ctx = (record_reference_ctx *)data;
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53
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54 t = canonicalize_constructor_val (t, NULL);
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55 if (!t)
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56 t = *tp;
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57 else if (t != *tp)
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58 *tp = t;
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59
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60 switch (TREE_CODE (t))
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61 {
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62 case VAR_DECL:
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63 case FUNCTION_DECL:
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64 gcc_unreachable ();
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65 break;
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66
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67 case FDESC_EXPR:
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68 case ADDR_EXPR:
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69 /* Record dereferences to the functions. This makes the
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70 functions reachable unconditionally. */
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71 decl = get_base_var (*tp);
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72 if (TREE_CODE (decl) == FUNCTION_DECL)
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73 {
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74 cgraph_node *node = cgraph_node::get_create (decl);
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75 if (!ctx->only_vars)
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76 node->mark_address_taken ();
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77 ctx->varpool_node->create_reference (node, IPA_REF_ADDR);
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78 }
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79
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80 if (VAR_P (decl))
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81 {
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82 varpool_node *vnode = varpool_node::get_create (decl);
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83 ctx->varpool_node->create_reference (vnode, IPA_REF_ADDR);
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84 }
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85 *walk_subtrees = 0;
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86 break;
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87
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88 default:
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89 /* Save some cycles by not walking types and declaration as we
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90 won't find anything useful there anyway. */
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91 if (IS_TYPE_OR_DECL_P (*tp))
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92 {
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93 *walk_subtrees = 0;
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94 break;
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95 }
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96 break;
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97 }
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98
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99 return NULL_TREE;
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100 }
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101
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102 /* Record references to typeinfos in the type list LIST. */
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103
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104 static void
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105 record_type_list (cgraph_node *node, tree list)
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106 {
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107 for (; list; list = TREE_CHAIN (list))
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108 {
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109 tree type = TREE_VALUE (list);
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110
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111 if (TYPE_P (type))
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112 type = lookup_type_for_runtime (type);
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113 STRIP_NOPS (type);
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114 if (TREE_CODE (type) == ADDR_EXPR)
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115 {
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116 type = TREE_OPERAND (type, 0);
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117 if (VAR_P (type))
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118 {
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119 varpool_node *vnode = varpool_node::get_create (type);
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120 node->create_reference (vnode, IPA_REF_ADDR);
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121 }
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122 }
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123 }
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124 }
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125
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126 /* Record all references we will introduce by producing EH tables
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127 for NODE. */
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128
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129 static void
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130 record_eh_tables (cgraph_node *node, function *fun)
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131 {
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132 eh_region i;
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133
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134 if (DECL_FUNCTION_PERSONALITY (node->decl))
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135 {
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136 tree per_decl = DECL_FUNCTION_PERSONALITY (node->decl);
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137 cgraph_node *per_node = cgraph_node::get_create (per_decl);
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138
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139 node->create_reference (per_node, IPA_REF_ADDR);
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140 per_node->mark_address_taken ();
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141 }
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142
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143 i = fun->eh->region_tree;
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144 if (!i)
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145 return;
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146
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147 while (1)
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148 {
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149 switch (i->type)
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150 {
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151 case ERT_CLEANUP:
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152 case ERT_MUST_NOT_THROW:
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153 break;
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parents: 55
diff changeset
154
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
155 case ERT_TRY:
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parents: 55
diff changeset
156 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
157 eh_catch c;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
158 for (c = i->u.eh_try.first_catch; c; c = c->next_catch)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
159 record_type_list (node, c->type_list);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
160 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
161 break;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
162
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
163 case ERT_ALLOWED_EXCEPTIONS:
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parents: 55
diff changeset
164 record_type_list (node, i->u.allowed.type_list);
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parents: 55
diff changeset
165 break;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
166 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
167 /* If there are sub-regions, process them. */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
168 if (i->inner)
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parents: 55
diff changeset
169 i = i->inner;
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parents: 55
diff changeset
170 /* If there are peers, process them. */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
171 else if (i->next_peer)
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diff changeset
172 i = i->next_peer;
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parents: 55
diff changeset
173 /* Otherwise, step back up the tree to the next peer. */
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parents: 55
diff changeset
174 else
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parents: 55
diff changeset
175 {
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parents: 55
diff changeset
176 do
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177 {
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diff changeset
178 i = i->outer;
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parents: 55
diff changeset
179 if (i == NULL)
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180 return;
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parents: 55
diff changeset
181 }
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diff changeset
182 while (i->next_peer == NULL);
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parents: 55
diff changeset
183 i = i->next_peer;
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parents: 55
diff changeset
184 }
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parents: 55
diff changeset
185 }
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parents: 55
diff changeset
186 }
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parents: 55
diff changeset
187
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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188 /* Computes the frequency of the call statement so that it can be stored in
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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189 cgraph_edge. BB is the basic block of the call statement. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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190 int
55
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parents: 0
diff changeset
191 compute_call_stmt_bb_frequency (tree decl, basic_block bb)
0
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192 {
131
84e7813d76e9 gcc-8.2
mir3636
parents: 111
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193 return bb->count.to_cgraph_frequency
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194 (ENTRY_BLOCK_PTR_FOR_FN (DECL_STRUCT_FUNCTION (decl))->count);
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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195 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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196
63
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diff changeset
197 /* Mark address taken in STMT. */
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diff changeset
198
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199 static bool
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200 mark_address (gimple *stmt, tree addr, tree, void *data)
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parents: 55
diff changeset
201 {
67
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parents: 63
diff changeset
202 addr = get_base_address (addr);
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diff changeset
203 if (TREE_CODE (addr) == FUNCTION_DECL)
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parents: 55
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204 {
111
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205 cgraph_node *node = cgraph_node::get_create (addr);
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diff changeset
206 node->mark_address_taken ();
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207 ((symtab_node *)data)->create_reference (node, IPA_REF_ADDR, stmt);
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208 }
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kono
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209 else if (addr && VAR_P (addr)
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parents: 63
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210 && (TREE_STATIC (addr) || DECL_EXTERNAL (addr)))
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parents: 55
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211 {
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212 varpool_node *vnode = varpool_node::get_create (addr);
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diff changeset
213
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214 ((symtab_node *)data)->create_reference (vnode, IPA_REF_ADDR, stmt);
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parents: 55
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215 }
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parents: 55
diff changeset
216
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diff changeset
217 return false;
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diff changeset
218 }
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diff changeset
219
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diff changeset
220 /* Mark load of T. */
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parents: 55
diff changeset
221
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diff changeset
222 static bool
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223 mark_load (gimple *stmt, tree t, tree, void *data)
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diff changeset
224 {
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225 t = get_base_address (t);
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226 if (t && TREE_CODE (t) == FUNCTION_DECL)
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parents: 63
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227 {
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228 /* ??? This can happen on platforms with descriptors when these are
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff changeset
229 directly manipulated in the code. Pretend that it's an address. */
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230 cgraph_node *node = cgraph_node::get_create (t);
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231 node->mark_address_taken ();
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232 ((symtab_node *)data)->create_reference (node, IPA_REF_ADDR, stmt);
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parents: 63
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233 }
111
kono
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234 else if (t && VAR_P (t) && (TREE_STATIC (t) || DECL_EXTERNAL (t)))
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235 {
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236 varpool_node *vnode = varpool_node::get_create (t);
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237
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238 ((symtab_node *)data)->create_reference (vnode, IPA_REF_LOAD, stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
239 }
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240 return false;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
241 }
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diff changeset
242
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diff changeset
243 /* Mark store of T. */
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parents: 55
diff changeset
244
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diff changeset
245 static bool
111
kono
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246 mark_store (gimple *stmt, tree t, tree, void *data)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
247 {
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diff changeset
248 t = get_base_address (t);
111
kono
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diff changeset
249 if (t && VAR_P (t) && (TREE_STATIC (t) || DECL_EXTERNAL (t)))
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
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250 {
111
kono
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251 varpool_node *vnode = varpool_node::get_create (t);
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diff changeset
252
111
kono
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253 ((symtab_node *)data)->create_reference (vnode, IPA_REF_STORE, stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
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254 }
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255 return false;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
256 }
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parents: 55
diff changeset
257
111
kono
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diff changeset
258 /* Record all references from cgraph_node that are taken in statement STMT. */
kono
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259
kono
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diff changeset
260 void
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261 cgraph_node::record_stmt_references (gimple *stmt)
kono
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262 {
kono
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diff changeset
263 walk_stmt_load_store_addr_ops (stmt, this, mark_load, mark_store,
kono
parents: 67
diff changeset
264 mark_address);
kono
parents: 67
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265 }
kono
parents: 67
diff changeset
266
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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267 /* Create cgraph edges for function calls.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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268 Also look for functions and variables having addresses taken. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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269
111
kono
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diff changeset
270 namespace {
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271
kono
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diff changeset
272 const pass_data pass_data_build_cgraph_edges =
kono
parents: 67
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273 {
kono
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274 GIMPLE_PASS, /* type */
kono
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diff changeset
275 "*build_cgraph_edges", /* name */
kono
parents: 67
diff changeset
276 OPTGROUP_NONE, /* optinfo_flags */
kono
parents: 67
diff changeset
277 TV_NONE, /* tv_id */
kono
parents: 67
diff changeset
278 PROP_cfg, /* properties_required */
kono
parents: 67
diff changeset
279 0, /* properties_provided */
kono
parents: 67
diff changeset
280 0, /* properties_destroyed */
kono
parents: 67
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281 0, /* todo_flags_start */
kono
parents: 67
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282 0, /* todo_flags_finish */
kono
parents: 67
diff changeset
283 };
kono
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284
kono
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diff changeset
285 class pass_build_cgraph_edges : public gimple_opt_pass
kono
parents: 67
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286 {
kono
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diff changeset
287 public:
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288 pass_build_cgraph_edges (gcc::context *ctxt)
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parents: 67
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289 : gimple_opt_pass (pass_data_build_cgraph_edges, ctxt)
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290 {}
kono
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291
kono
parents: 67
diff changeset
292 /* opt_pass methods: */
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parents: 67
diff changeset
293 virtual unsigned int execute (function *);
kono
parents: 67
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294
kono
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diff changeset
295 }; // class pass_build_cgraph_edges
kono
parents: 67
diff changeset
296
kono
parents: 67
diff changeset
297 unsigned int
kono
parents: 67
diff changeset
298 pass_build_cgraph_edges::execute (function *fun)
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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299 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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300 basic_block bb;
111
kono
parents: 67
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301 cgraph_node *node = cgraph_node::get (current_function_decl);
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302 gimple_stmt_iterator gsi;
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303 tree decl;
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diff changeset
304 unsigned ix;
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parents:
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305
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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306 /* Create the callgraph edges and record the nodes referenced by the function.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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307 body. */
111
kono
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308 FOR_EACH_BB_FN (bb, fun)
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parents: 55
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309 {
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310 for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
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311 {
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312 gimple *stmt = gsi_stmt (gsi);
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parents: 55
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313 tree decl;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
314
111
kono
parents: 67
diff changeset
315 if (is_gimple_debug (stmt))
kono
parents: 67
diff changeset
316 continue;
kono
parents: 67
diff changeset
317
kono
parents: 67
diff changeset
318 if (gcall *call_stmt = dyn_cast <gcall *> (stmt))
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
319 {
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kono
parents: 67
diff changeset
320 decl = gimple_call_fndecl (call_stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
321 if (decl)
131
84e7813d76e9 gcc-8.2
mir3636
parents: 111
diff changeset
322 node->create_edge (cgraph_node::get_create (decl), call_stmt, bb->count);
111
kono
parents: 67
diff changeset
323 else if (gimple_call_internal_p (call_stmt))
kono
parents: 67
diff changeset
324 ;
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
325 else
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kono
parents: 67
diff changeset
326 node->create_indirect_edge (call_stmt,
kono
parents: 67
diff changeset
327 gimple_call_flags (call_stmt),
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84e7813d76e9 gcc-8.2
mir3636
parents: 111
diff changeset
328 bb->count);
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b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
329 }
111
kono
parents: 67
diff changeset
330 node->record_stmt_references (stmt);
kono
parents: 67
diff changeset
331 if (gomp_parallel *omp_par_stmt = dyn_cast <gomp_parallel *> (stmt))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
332 {
111
kono
parents: 67
diff changeset
333 tree fn = gimple_omp_parallel_child_fn (omp_par_stmt);
kono
parents: 67
diff changeset
334 node->create_reference (cgraph_node::get_create (fn),
kono
parents: 67
diff changeset
335 IPA_REF_ADDR, stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
336 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
337 if (gimple_code (stmt) == GIMPLE_OMP_TASK)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
338 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
339 tree fn = gimple_omp_task_child_fn (stmt);
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parents: 55
diff changeset
340 if (fn)
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kono
parents: 67
diff changeset
341 node->create_reference (cgraph_node::get_create (fn),
kono
parents: 67
diff changeset
342 IPA_REF_ADDR, stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
343 fn = gimple_omp_task_copy_fn (stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
344 if (fn)
111
kono
parents: 67
diff changeset
345 node->create_reference (cgraph_node::get_create (fn),
kono
parents: 67
diff changeset
346 IPA_REF_ADDR, stmt);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
347 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
348 }
111
kono
parents: 67
diff changeset
349 for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
kono
parents: 67
diff changeset
350 node->record_stmt_references (gsi_stmt (gsi));
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
351 }
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
352
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
353 /* Look for initializers of constant variables and private statics. */
111
kono
parents: 67
diff changeset
354 FOR_EACH_LOCAL_DECL (fun, ix, decl)
kono
parents: 67
diff changeset
355 if (VAR_P (decl)
kono
parents: 67
diff changeset
356 && (TREE_STATIC (decl) && !DECL_EXTERNAL (decl))
kono
parents: 67
diff changeset
357 && !DECL_HAS_VALUE_EXPR_P (decl)
kono
parents: 67
diff changeset
358 && TREE_TYPE (decl) != error_mark_node)
kono
parents: 67
diff changeset
359 varpool_node::finalize_decl (decl);
kono
parents: 67
diff changeset
360 record_eh_tables (node, fun);
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
361
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
362 return 0;
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
363 }
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
364
111
kono
parents: 67
diff changeset
365 } // anon namespace
kono
parents: 67
diff changeset
366
kono
parents: 67
diff changeset
367 gimple_opt_pass *
kono
parents: 67
diff changeset
368 make_pass_build_cgraph_edges (gcc::context *ctxt)
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
369 {
111
kono
parents: 67
diff changeset
370 return new pass_build_cgraph_edges (ctxt);
kono
parents: 67
diff changeset
371 }
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
372
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
373 /* Record references to functions and other variables present in the
55
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
374 initial value of DECL, a variable.
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
375 When ONLY_VARS is true, we mark needed only variables, not functions. */
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
376
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
377 void
55
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
378 record_references_in_initializer (tree decl, bool only_vars)
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
379 {
111
kono
parents: 67
diff changeset
380 varpool_node *node = varpool_node::get_create (decl);
kono
parents: 67
diff changeset
381 hash_set<tree> visited_nodes;
kono
parents: 67
diff changeset
382 record_reference_ctx ctx = {false, NULL};
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
383
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
384 ctx.varpool_node = node;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
385 ctx.only_vars = only_vars;
55
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
386 walk_tree (&DECL_INITIAL (decl), record_reference,
111
kono
parents: 67
diff changeset
387 &ctx, &visited_nodes);
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
388 }
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
389
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
390 /* Rebuild cgraph edges for current function node. This needs to be run after
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
391 passes that don't update the cgraph. */
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
392
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
393 unsigned int
111
kono
parents: 67
diff changeset
394 cgraph_edge::rebuild_edges (void)
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
395 {
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
396 basic_block bb;
111
kono
parents: 67
diff changeset
397 cgraph_node *node = cgraph_node::get (current_function_decl);
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
398 gimple_stmt_iterator gsi;
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
399
111
kono
parents: 67
diff changeset
400 node->remove_callees ();
kono
parents: 67
diff changeset
401 node->remove_all_references ();
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
402
111
kono
parents: 67
diff changeset
403 node->count = ENTRY_BLOCK_PTR_FOR_FN (cfun)->count;
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
404
111
kono
parents: 67
diff changeset
405 FOR_EACH_BB_FN (bb, cfun)
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
406 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
407 for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
408 {
111
kono
parents: 67
diff changeset
409 gimple *stmt = gsi_stmt (gsi);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
410 tree decl;
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
411
111
kono
parents: 67
diff changeset
412 if (gcall *call_stmt = dyn_cast <gcall *> (stmt))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
413 {
111
kono
parents: 67
diff changeset
414 decl = gimple_call_fndecl (call_stmt);
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
415 if (decl)
111
kono
parents: 67
diff changeset
416 node->create_edge (cgraph_node::get_create (decl), call_stmt,
131
84e7813d76e9 gcc-8.2
mir3636
parents: 111
diff changeset
417 bb->count);
111
kono
parents: 67
diff changeset
418 else if (gimple_call_internal_p (call_stmt))
kono
parents: 67
diff changeset
419 ;
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
420 else
111
kono
parents: 67
diff changeset
421 node->create_indirect_edge (call_stmt,
kono
parents: 67
diff changeset
422 gimple_call_flags (call_stmt),
131
84e7813d76e9 gcc-8.2
mir3636
parents: 111
diff changeset
423 bb->count);
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
424 }
111
kono
parents: 67
diff changeset
425 node->record_stmt_references (stmt);
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
426 }
111
kono
parents: 67
diff changeset
427 for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
kono
parents: 67
diff changeset
428 node->record_stmt_references (gsi_stmt (gsi));
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
429 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
430 record_eh_tables (node, cfun);
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
431 gcc_assert (!node->global.inlined_to);
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
432 return 0;
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
433 }
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
434
111
kono
parents: 67
diff changeset
435 /* Rebuild cgraph references for current function node. This needs to be run
kono
parents: 67
diff changeset
436 after passes that don't update the cgraph. */
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
437
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
438 void
111
kono
parents: 67
diff changeset
439 cgraph_edge::rebuild_references (void)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
440 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
441 basic_block bb;
111
kono
parents: 67
diff changeset
442 cgraph_node *node = cgraph_node::get (current_function_decl);
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
443 gimple_stmt_iterator gsi;
111
kono
parents: 67
diff changeset
444 ipa_ref *ref = NULL;
kono
parents: 67
diff changeset
445 int i;
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
446
111
kono
parents: 67
diff changeset
447 /* Keep speculative references for further cgraph edge expansion. */
kono
parents: 67
diff changeset
448 for (i = 0; node->iterate_reference (i, ref);)
kono
parents: 67
diff changeset
449 if (!ref->speculative)
kono
parents: 67
diff changeset
450 ref->remove_reference ();
kono
parents: 67
diff changeset
451 else
kono
parents: 67
diff changeset
452 i++;
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
453
111
kono
parents: 67
diff changeset
454 FOR_EACH_BB_FN (bb, cfun)
63
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
455 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
456 for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
111
kono
parents: 67
diff changeset
457 node->record_stmt_references (gsi_stmt (gsi));
kono
parents: 67
diff changeset
458 for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
kono
parents: 67
diff changeset
459 node->record_stmt_references (gsi_stmt (gsi));
63
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
460 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
461 record_eh_tables (node, cfun);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
462 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
463
111
kono
parents: 67
diff changeset
464 namespace {
kono
parents: 67
diff changeset
465
kono
parents: 67
diff changeset
466 const pass_data pass_data_rebuild_cgraph_edges =
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
467 {
111
kono
parents: 67
diff changeset
468 GIMPLE_PASS, /* type */
kono
parents: 67
diff changeset
469 "*rebuild_cgraph_edges", /* name */
kono
parents: 67
diff changeset
470 OPTGROUP_NONE, /* optinfo_flags */
kono
parents: 67
diff changeset
471 TV_CGRAPH, /* tv_id */
kono
parents: 67
diff changeset
472 PROP_cfg, /* properties_required */
kono
parents: 67
diff changeset
473 0, /* properties_provided */
kono
parents: 67
diff changeset
474 0, /* properties_destroyed */
kono
parents: 67
diff changeset
475 0, /* todo_flags_start */
kono
parents: 67
diff changeset
476 0, /* todo_flags_finish */
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
477 };
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
478
111
kono
parents: 67
diff changeset
479 class pass_rebuild_cgraph_edges : public gimple_opt_pass
kono
parents: 67
diff changeset
480 {
kono
parents: 67
diff changeset
481 public:
kono
parents: 67
diff changeset
482 pass_rebuild_cgraph_edges (gcc::context *ctxt)
kono
parents: 67
diff changeset
483 : gimple_opt_pass (pass_data_rebuild_cgraph_edges, ctxt)
kono
parents: 67
diff changeset
484 {}
55
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
485
111
kono
parents: 67
diff changeset
486 /* opt_pass methods: */
kono
parents: 67
diff changeset
487 opt_pass * clone () { return new pass_rebuild_cgraph_edges (m_ctxt); }
kono
parents: 67
diff changeset
488 virtual unsigned int execute (function *)
kono
parents: 67
diff changeset
489 {
kono
parents: 67
diff changeset
490 return cgraph_edge::rebuild_edges ();
kono
parents: 67
diff changeset
491 }
kono
parents: 67
diff changeset
492
kono
parents: 67
diff changeset
493 }; // class pass_rebuild_cgraph_edges
kono
parents: 67
diff changeset
494
kono
parents: 67
diff changeset
495 } // anon namespace
kono
parents: 67
diff changeset
496
kono
parents: 67
diff changeset
497 gimple_opt_pass *
kono
parents: 67
diff changeset
498 make_pass_rebuild_cgraph_edges (gcc::context *ctxt)
kono
parents: 67
diff changeset
499 {
kono
parents: 67
diff changeset
500 return new pass_rebuild_cgraph_edges (ctxt);
kono
parents: 67
diff changeset
501 }
kono
parents: 67
diff changeset
502
kono
parents: 67
diff changeset
503
kono
parents: 67
diff changeset
504 namespace {
kono
parents: 67
diff changeset
505
kono
parents: 67
diff changeset
506 const pass_data pass_data_remove_cgraph_callee_edges =
55
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
507 {
111
kono
parents: 67
diff changeset
508 GIMPLE_PASS, /* type */
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509 "*remove_cgraph_callee_edges", /* name */
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510 OPTGROUP_NONE, /* optinfo_flags */
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511 TV_NONE, /* tv_id */
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512 0, /* properties_required */
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513 0, /* properties_provided */
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514 0, /* properties_destroyed */
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515 0, /* todo_flags_start */
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516 0, /* todo_flags_finish */
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517 };
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518
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519 class pass_remove_cgraph_callee_edges : public gimple_opt_pass
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520 {
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521 public:
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522 pass_remove_cgraph_callee_edges (gcc::context *ctxt)
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523 : gimple_opt_pass (pass_data_remove_cgraph_callee_edges, ctxt)
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524 {}
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525
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526 /* opt_pass methods: */
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527 opt_pass * clone () {
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528 return new pass_remove_cgraph_callee_edges (m_ctxt);
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529 }
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530 virtual unsigned int execute (function *);
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531
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532 }; // class pass_remove_cgraph_callee_edges
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533
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534 unsigned int
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535 pass_remove_cgraph_callee_edges::execute (function *)
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536 {
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537 cgraph_node *node = cgraph_node::get (current_function_decl);
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538 node->remove_callees ();
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539 node->remove_all_references ();
55
77e2b8dfacca update it from 4.4.3 to 4.5.0
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540 return 0;
77e2b8dfacca update it from 4.4.3 to 4.5.0
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541 }
77e2b8dfacca update it from 4.4.3 to 4.5.0
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542
111
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543 } // anon namespace
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544
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545 gimple_opt_pass *
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546 make_pass_remove_cgraph_callee_edges (gcc::context *ctxt)
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547 {
111
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548 return new pass_remove_cgraph_callee_edges (ctxt);
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549 }