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111
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1 /* Routines for reading trees from a file stream.
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2
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3 Copyright (C) 2011-2017 Free Software Foundation, Inc.
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4 Contributed by Diego Novillo <dnovillo@google.com>
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #include "config.h"
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23 #include "system.h"
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24 #include "coretypes.h"
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25 #include "backend.h"
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26 #include "target.h"
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27 #include "tree.h"
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28 #include "gimple.h"
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29 #include "stringpool.h"
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30 #include "tree-streamer.h"
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31 #include "cgraph.h"
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32 #include "builtins.h"
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33 #include "ipa-chkp.h"
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34 #include "gomp-constants.h"
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35 #include "stringpool.h"
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36 #include "attribs.h"
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37 #include "asan.h"
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38 #include "opts.h"
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39
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40
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41 /* Read a STRING_CST from the string table in DATA_IN using input
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42 block IB. */
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43
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44 tree
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45 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
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46 {
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47 unsigned int len;
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48 const char * ptr;
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49
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50 ptr = streamer_read_indexed_string (data_in, ib, &len);
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51 if (!ptr)
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52 return NULL;
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53 return build_string (len, ptr);
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54 }
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55
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56
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57 /* Read an IDENTIFIER from the string table in DATA_IN using input
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58 block IB. */
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59
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60 static tree
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61 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
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62 {
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63 unsigned int len;
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64 const char *ptr;
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65
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66 ptr = streamer_read_indexed_string (data_in, ib, &len);
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67 if (!ptr)
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68 return NULL;
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69 return get_identifier_with_length (ptr, len);
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70 }
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71
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72
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73 /* Read a chain of tree nodes from input block IB. DATA_IN contains
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74 tables and descriptors for the file being read. */
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75
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76 tree
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77 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
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78 {
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79 tree first, prev, curr;
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80
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81 /* The chain is written as NULL terminated list of trees. */
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82 first = prev = NULL_TREE;
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83 do
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84 {
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85 curr = stream_read_tree (ib, data_in);
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86 if (prev)
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87 TREE_CHAIN (prev) = curr;
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88 else
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89 first = curr;
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90
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91 prev = curr;
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92 }
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93 while (curr);
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94
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95 return first;
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96 }
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97
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98
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99 /* Unpack all the non-pointer fields of the TS_BASE structure of
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100 expression EXPR from bitpack BP. */
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101
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102 static inline void
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103 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
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104 {
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105 /* Note that the code for EXPR has already been unpacked to create EXPR in
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106 streamer_alloc_tree. */
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107 if (!TYPE_P (expr))
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108 {
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109 TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
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110 TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
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111 TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
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112
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113 /* TREE_PUBLIC is used on types to indicate that the type
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114 has a TYPE_CACHED_VALUES vector. This is not streamed out,
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115 so we skip it here. */
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116 TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
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117 }
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118 else
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119 bp_unpack_value (bp, 4);
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120 TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
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121 TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
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122 if (DECL_P (expr))
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123 {
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124 DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
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125 DECL_NAMELESS (expr) = (unsigned) bp_unpack_value (bp, 1);
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126 }
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127 else if (TYPE_P (expr))
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128 TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
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129 else
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130 bp_unpack_value (bp, 1);
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131 TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
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132 if (TYPE_P (expr))
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133 TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
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134 else
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135 TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
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136 TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
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137 TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
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138 if (TREE_CODE (expr) != TREE_BINFO)
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139 TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
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140 else
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141 bp_unpack_value (bp, 1);
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142 TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
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143 TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
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144 if (TYPE_P (expr))
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145 {
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146 if (AGGREGATE_TYPE_P (expr))
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147 TYPE_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
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148 else
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149 TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
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150 TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
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151 }
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152 else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF)
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153 {
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154 REF_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
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155 bp_unpack_value (bp, 8);
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156 }
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157 else if (TREE_CODE (expr) == SSA_NAME)
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158 {
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159 SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
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160 bp_unpack_value (bp, 8);
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161 }
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162 else
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163 bp_unpack_value (bp, 9);
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164 }
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165
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166
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167 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
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168 expression EXPR from bitpack BP. */
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169
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170 static void
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171 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
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172 {
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173 int i;
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174 for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
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175 TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
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176 }
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177
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178
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179 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
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180 expression EXPR from bitpack BP. */
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181
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182 static void
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183 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
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184 {
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185 unsigned i;
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186 REAL_VALUE_TYPE r;
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187 REAL_VALUE_TYPE *rp;
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188
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189 /* Clear all bits of the real value type so that we can later do
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190 bitwise comparisons to see if two values are the same. */
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191 memset (&r, 0, sizeof r);
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192 r.cl = (unsigned) bp_unpack_value (bp, 2);
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193 r.decimal = (unsigned) bp_unpack_value (bp, 1);
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194 r.sign = (unsigned) bp_unpack_value (bp, 1);
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195 r.signalling = (unsigned) bp_unpack_value (bp, 1);
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196 r.canonical = (unsigned) bp_unpack_value (bp, 1);
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197 r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
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198 for (i = 0; i < SIGSZ; i++)
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199 r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
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200
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201 rp = ggc_alloc<real_value> ();
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202 memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
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203 TREE_REAL_CST_PTR (expr) = rp;
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204 }
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205
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206
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207 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
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208 expression EXPR from bitpack BP. */
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209
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210 static void
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211 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
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212 {
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213 FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
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214 fp->mode = as_a <scalar_mode> (bp_unpack_machine_mode (bp));
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215 fp->data.low = bp_unpack_var_len_int (bp);
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216 fp->data.high = bp_unpack_var_len_int (bp);
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217 TREE_FIXED_CST_PTR (expr) = fp;
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218 }
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219
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220 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
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221 of expression EXPR from bitpack BP. */
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222
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223 static void
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224 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
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225 {
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226 SET_DECL_MODE (expr, bp_unpack_machine_mode (bp));
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227 DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
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228 DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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229 DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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230 DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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231 DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
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232 DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
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233 DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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234 DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
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235 DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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236 SET_DECL_ALIGN (expr, (unsigned) bp_unpack_var_len_unsigned (bp));
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237 #ifdef ACCEL_COMPILER
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238 if (DECL_ALIGN (expr) > targetm.absolute_biggest_alignment)
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239 SET_DECL_ALIGN (expr, targetm.absolute_biggest_alignment);
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240 #endif
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241 if (TREE_CODE (expr) == LABEL_DECL)
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242 {
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243 EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
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244
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245 /* Always assume an initial value of -1 for LABEL_DECL_UID to
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246 force gimple_set_bb to recreate label_to_block_map. */
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247 LABEL_DECL_UID (expr) = -1;
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248 }
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249
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250 if (TREE_CODE (expr) == FIELD_DECL)
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251 {
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252 DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
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253 DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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254 expr->decl_common.off_align = bp_unpack_value (bp, 8);
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255 }
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256
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257 if (VAR_P (expr))
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258 {
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259 DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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260 DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
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261 }
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262
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263 if (TREE_CODE (expr) == RESULT_DECL
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264 || TREE_CODE (expr) == PARM_DECL
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265 || VAR_P (expr))
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266 {
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267 DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
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268 if (VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
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269 DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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270 }
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271 }
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272
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273
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274 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
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275 of expression EXPR from bitpack BP. */
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276
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277 static void
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278 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
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279 {
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280 DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
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281 }
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282
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283
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284 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
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285 of expression EXPR from bitpack BP. */
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286
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287 static void
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288 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
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289 {
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290 DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
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291 DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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292 DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
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293 DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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294 DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
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295 DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
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296 DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
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297
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298 if (VAR_P (expr))
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299 {
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300 DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
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301 DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
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302 }
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303
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304 if (TREE_CODE (expr) == FUNCTION_DECL)
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305 {
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306 DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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307 DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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308 DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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309 }
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310 }
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311
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312
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313 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
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314 of expression EXPR from bitpack BP. */
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315
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316 static void
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317 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
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318 {
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319 DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
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320 BUILT_IN_LAST);
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321 DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
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322 DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
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323 DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
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324 DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
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325 DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
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326 DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
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327 DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
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328 DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
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329 DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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330 DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
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331 DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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332 DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
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333 = (unsigned) bp_unpack_value (bp, 1);
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334 DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
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335 DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
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336 DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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337 DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
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338 if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
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339 {
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340 DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
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341 12);
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342 if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
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343 && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
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344 fatal_error (input_location,
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345 "machine independent builtin code out of range");
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346 else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
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347 {
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348 tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
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349 if (!result || result == error_mark_node)
|
|
|
350 fatal_error (input_location,
|
|
|
351 "target specific builtin not available");
|
|
|
352 }
|
|
|
353 }
|
|
|
354 }
|
|
|
355
|
|
|
356
|
|
|
357 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
|
|
|
358 of expression EXPR from bitpack BP. */
|
|
|
359
|
|
|
360 static void
|
|
|
361 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
|
|
|
362 {
|
|
|
363 machine_mode mode;
|
|
|
364
|
|
|
365 mode = bp_unpack_machine_mode (bp);
|
|
|
366 SET_TYPE_MODE (expr, mode);
|
|
|
367 TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
368 /* TYPE_NO_FORCE_BLK is private to stor-layout and need
|
|
|
369 no streaming. */
|
|
|
370 TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
371 TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
372 TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
373 TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
374 TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
375 if (RECORD_OR_UNION_TYPE_P (expr))
|
|
|
376 {
|
|
|
377 TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
378 TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
379 }
|
|
|
380 else if (TREE_CODE (expr) == ARRAY_TYPE)
|
|
|
381 TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
382 if (AGGREGATE_TYPE_P (expr))
|
|
|
383 TYPE_TYPELESS_STORAGE (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
384 TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
|
|
|
385 SET_TYPE_ALIGN (expr, bp_unpack_var_len_unsigned (bp));
|
|
|
386 #ifdef ACCEL_COMPILER
|
|
|
387 if (TYPE_ALIGN (expr) > targetm.absolute_biggest_alignment)
|
|
|
388 SET_TYPE_ALIGN (expr, targetm.absolute_biggest_alignment);
|
|
|
389 #endif
|
|
|
390 }
|
|
|
391
|
|
|
392
|
|
|
393 /* Unpack all the non-pointer fields of the TS_BLOCK structure
|
|
|
394 of expression EXPR from bitpack BP. */
|
|
|
395
|
|
|
396 static void
|
|
|
397 unpack_ts_block_value_fields (struct data_in *data_in,
|
|
|
398 struct bitpack_d *bp, tree expr)
|
|
|
399 {
|
|
|
400 BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
|
|
|
401 /* BLOCK_NUMBER is recomputed. */
|
|
|
402 stream_input_location (&BLOCK_SOURCE_LOCATION (expr), bp, data_in);
|
|
|
403 }
|
|
|
404
|
|
|
405 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
|
|
|
406 structure of expression EXPR from bitpack BP. */
|
|
|
407
|
|
|
408 static void
|
|
|
409 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
|
|
|
410 struct bitpack_d *bp, tree expr)
|
|
|
411 {
|
|
|
412 TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
|
|
|
413 vec_safe_push (all_translation_units, expr);
|
|
|
414 }
|
|
|
415
|
|
|
416
|
|
|
417 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
|
|
|
418 structure of expression EXPR from bitpack BP. */
|
|
|
419
|
|
|
420 static void
|
|
|
421 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
|
|
|
422 struct bitpack_d *bp, tree expr)
|
|
|
423 {
|
|
|
424 stream_input_location (&OMP_CLAUSE_LOCATION (expr), bp, data_in);
|
|
|
425 switch (OMP_CLAUSE_CODE (expr))
|
|
|
426 {
|
|
|
427 case OMP_CLAUSE_DEFAULT:
|
|
|
428 OMP_CLAUSE_DEFAULT_KIND (expr)
|
|
|
429 = bp_unpack_enum (bp, omp_clause_default_kind,
|
|
|
430 OMP_CLAUSE_DEFAULT_LAST);
|
|
|
431 break;
|
|
|
432 case OMP_CLAUSE_SCHEDULE:
|
|
|
433 OMP_CLAUSE_SCHEDULE_KIND (expr)
|
|
|
434 = bp_unpack_enum (bp, omp_clause_schedule_kind,
|
|
|
435 OMP_CLAUSE_SCHEDULE_LAST);
|
|
|
436 break;
|
|
|
437 case OMP_CLAUSE_DEPEND:
|
|
|
438 OMP_CLAUSE_DEPEND_KIND (expr)
|
|
|
439 = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
|
|
|
440 break;
|
|
|
441 case OMP_CLAUSE_MAP:
|
|
|
442 OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
|
|
|
443 GOMP_MAP_LAST));
|
|
|
444 break;
|
|
|
445 case OMP_CLAUSE_PROC_BIND:
|
|
|
446 OMP_CLAUSE_PROC_BIND_KIND (expr)
|
|
|
447 = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
|
|
|
448 OMP_CLAUSE_PROC_BIND_LAST);
|
|
|
449 break;
|
|
|
450 case OMP_CLAUSE_REDUCTION:
|
|
|
451 OMP_CLAUSE_REDUCTION_CODE (expr)
|
|
|
452 = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
|
|
|
453 break;
|
|
|
454 default:
|
|
|
455 break;
|
|
|
456 }
|
|
|
457 }
|
|
|
458
|
|
|
459
|
|
|
460 /* Read all the language-independent bitfield values for EXPR from IB.
|
|
|
461 Return the partially unpacked bitpack so the caller can unpack any other
|
|
|
462 bitfield values that the writer may have written. */
|
|
|
463
|
|
|
464 void
|
|
|
465 streamer_read_tree_bitfields (struct lto_input_block *ib,
|
|
|
466 struct data_in *data_in, tree expr)
|
|
|
467 {
|
|
|
468 enum tree_code code;
|
|
|
469 struct bitpack_d bp;
|
|
|
470
|
|
|
471 /* Read the bitpack of non-pointer values from IB. */
|
|
|
472 bp = streamer_read_bitpack (ib);
|
|
|
473
|
|
|
474 /* The first word in BP contains the code of the tree that we
|
|
|
475 are about to read. */
|
|
|
476 code = (enum tree_code) bp_unpack_value (&bp, 16);
|
|
|
477 lto_tag_check (lto_tree_code_to_tag (code),
|
|
|
478 lto_tree_code_to_tag (TREE_CODE (expr)));
|
|
|
479
|
|
|
480 /* Note that all these functions are highly sensitive to changes in
|
|
|
481 the types and sizes of each of the fields being packed. */
|
|
|
482 unpack_ts_base_value_fields (&bp, expr);
|
|
|
483
|
|
|
484 if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
|
|
|
485 unpack_ts_int_cst_value_fields (&bp, expr);
|
|
|
486
|
|
|
487 if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
|
|
|
488 unpack_ts_real_cst_value_fields (&bp, expr);
|
|
|
489
|
|
|
490 if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
|
|
|
491 unpack_ts_fixed_cst_value_fields (&bp, expr);
|
|
|
492
|
|
|
493 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
|
|
|
494 stream_input_location (&DECL_SOURCE_LOCATION (expr), &bp, data_in);
|
|
|
495
|
|
|
496 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
|
|
|
497 unpack_ts_decl_common_value_fields (&bp, expr);
|
|
|
498
|
|
|
499 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
|
|
|
500 unpack_ts_decl_wrtl_value_fields (&bp, expr);
|
|
|
501
|
|
|
502 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
|
|
|
503 unpack_ts_decl_with_vis_value_fields (&bp, expr);
|
|
|
504
|
|
|
505 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
|
|
|
506 unpack_ts_function_decl_value_fields (&bp, expr);
|
|
|
507
|
|
|
508 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
|
|
|
509 unpack_ts_type_common_value_fields (&bp, expr);
|
|
|
510
|
|
|
511 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
|
|
|
512 {
|
|
|
513 stream_input_location (&EXPR_CHECK (expr)->exp.locus, &bp, data_in);
|
|
|
514 if (code == MEM_REF
|
|
|
515 || code == TARGET_MEM_REF)
|
|
|
516 {
|
|
|
517 MR_DEPENDENCE_CLIQUE (expr)
|
|
|
518 = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
|
|
|
519 if (MR_DEPENDENCE_CLIQUE (expr) != 0)
|
|
|
520 MR_DEPENDENCE_BASE (expr)
|
|
|
521 = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
|
|
|
522 }
|
|
|
523 }
|
|
|
524
|
|
|
525 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
|
|
|
526 unpack_ts_block_value_fields (data_in, &bp, expr);
|
|
|
527
|
|
|
528 if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
|
|
|
529 unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
|
|
|
530
|
|
|
531 if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
|
|
|
532 cl_optimization_stream_in (&bp, TREE_OPTIMIZATION (expr));
|
|
|
533
|
|
|
534 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
|
|
|
535 {
|
|
|
536 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
|
|
|
537 if (length > 0)
|
|
|
538 vec_safe_grow (BINFO_BASE_ACCESSES (expr), length);
|
|
|
539 }
|
|
|
540
|
|
|
541 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
|
|
|
542 {
|
|
|
543 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
|
|
|
544 if (length > 0)
|
|
|
545 vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
|
|
|
546 }
|
|
|
547
|
|
|
548 #ifndef ACCEL_COMPILER
|
|
|
549 if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
|
|
|
550 {
|
|
|
551 cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
|
|
|
552 if (targetm.target_option.post_stream_in)
|
|
|
553 targetm.target_option.post_stream_in (TREE_TARGET_OPTION (expr));
|
|
|
554 }
|
|
|
555 #endif
|
|
|
556
|
|
|
557 if (code == OMP_CLAUSE)
|
|
|
558 unpack_ts_omp_clause_value_fields (data_in, &bp, expr);
|
|
|
559 }
|
|
|
560
|
|
|
561
|
|
|
562 /* Materialize a new tree from input block IB using descriptors in
|
|
|
563 DATA_IN. The code for the new tree should match TAG. Store in
|
|
|
564 *IX_P the index into the reader cache where the new tree is stored. */
|
|
|
565
|
|
|
566 tree
|
|
|
567 streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
|
|
|
568 enum LTO_tags tag)
|
|
|
569 {
|
|
|
570 enum tree_code code;
|
|
|
571 tree result;
|
|
|
572
|
|
|
573 result = NULL_TREE;
|
|
|
574
|
|
|
575 code = lto_tag_to_tree_code (tag);
|
|
|
576
|
|
|
577 /* We should never see an SSA_NAME tree. Only the version numbers of
|
|
|
578 SSA names are ever written out. See input_ssa_names. */
|
|
|
579 gcc_assert (code != SSA_NAME);
|
|
|
580
|
|
|
581 /* Instantiate a new tree using the header data. */
|
|
|
582 if (CODE_CONTAINS_STRUCT (code, TS_STRING))
|
|
|
583 result = streamer_read_string_cst (data_in, ib);
|
|
|
584 else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
|
|
|
585 result = input_identifier (data_in, ib);
|
|
|
586 else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
|
|
|
587 {
|
|
|
588 HOST_WIDE_INT len = streamer_read_hwi (ib);
|
|
|
589 result = make_tree_vec (len);
|
|
|
590 }
|
|
|
591 else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
|
|
|
592 {
|
|
|
593 HOST_WIDE_INT len = streamer_read_hwi (ib);
|
|
|
594 result = make_vector (len);
|
|
|
595 }
|
|
|
596 else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
|
|
|
597 {
|
|
|
598 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
|
|
|
599 result = make_tree_binfo (len);
|
|
|
600 }
|
|
|
601 else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
|
|
|
602 {
|
|
|
603 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
|
|
|
604 unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
|
|
|
605 result = make_int_cst (len, ext_len);
|
|
|
606 }
|
|
|
607 else if (code == CALL_EXPR)
|
|
|
608 {
|
|
|
609 unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
|
|
|
610 return build_vl_exp (CALL_EXPR, nargs + 3);
|
|
|
611 }
|
|
|
612 else if (code == OMP_CLAUSE)
|
|
|
613 {
|
|
|
614 enum omp_clause_code subcode
|
|
|
615 = (enum omp_clause_code) streamer_read_uhwi (ib);
|
|
|
616 return build_omp_clause (UNKNOWN_LOCATION, subcode);
|
|
|
617 }
|
|
|
618 else
|
|
|
619 {
|
|
|
620 /* For all other nodes, materialize the tree with a raw
|
|
|
621 make_node call. */
|
|
|
622 result = make_node (code);
|
|
|
623 }
|
|
|
624
|
|
|
625 return result;
|
|
|
626 }
|
|
|
627
|
|
|
628
|
|
|
629 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
|
|
|
630 block IB. DATA_IN contains tables and descriptors for the
|
|
|
631 file being read. */
|
|
|
632
|
|
|
633
|
|
|
634 static void
|
|
|
635 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
|
|
|
636 struct data_in *data_in, tree expr)
|
|
|
637 {
|
|
|
638 if (TREE_CODE (expr) != IDENTIFIER_NODE)
|
|
|
639 TREE_TYPE (expr) = stream_read_tree (ib, data_in);
|
|
|
640 }
|
|
|
641
|
|
|
642
|
|
|
643 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
|
|
|
644 block IB. DATA_IN contains tables and descriptors for the
|
|
|
645 file being read. */
|
|
|
646
|
|
|
647 static void
|
|
|
648 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
|
|
|
649 struct data_in *data_in, tree expr)
|
|
|
650 {
|
|
|
651 unsigned i;
|
|
|
652 for (i = 0; i < VECTOR_CST_NELTS (expr); ++i)
|
|
|
653 VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in);
|
|
|
654 }
|
|
|
655
|
|
|
656
|
|
|
657 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
|
|
|
658 block IB. DATA_IN contains tables and descriptors for the
|
|
|
659 file being read. */
|
|
|
660
|
|
|
661 static void
|
|
|
662 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
|
|
|
663 struct data_in *data_in, tree expr)
|
|
|
664 {
|
|
|
665 TREE_REALPART (expr) = stream_read_tree (ib, data_in);
|
|
|
666 TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
|
|
|
667 }
|
|
|
668
|
|
|
669
|
|
|
670 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
|
|
|
671 from input block IB. DATA_IN contains tables and descriptors for the
|
|
|
672 file being read. */
|
|
|
673
|
|
|
674 static void
|
|
|
675 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
|
|
|
676 struct data_in *data_in, tree expr)
|
|
|
677 {
|
|
|
678 DECL_NAME (expr) = stream_read_tree (ib, data_in);
|
|
|
679 DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
|
|
|
680 }
|
|
|
681
|
|
|
682
|
|
|
683 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
|
|
|
684 input block IB. DATA_IN contains tables and descriptors for the
|
|
|
685 file being read. */
|
|
|
686
|
|
|
687 static void
|
|
|
688 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
|
|
|
689 struct data_in *data_in, tree expr)
|
|
|
690 {
|
|
|
691 DECL_SIZE (expr) = stream_read_tree (ib, data_in);
|
|
|
692 DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
|
|
|
693 DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
|
|
|
694 DECL_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
|
|
|
695
|
|
|
696 if ((VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
|
|
|
697 && DECL_HAS_VALUE_EXPR_P (expr))
|
|
|
698 SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
|
|
|
699
|
|
|
700 if (VAR_P (expr))
|
|
|
701 {
|
|
|
702 tree dexpr = stream_read_tree (ib, data_in);
|
|
|
703 if (dexpr)
|
|
|
704 SET_DECL_DEBUG_EXPR (expr, dexpr);
|
|
|
705 }
|
|
|
706 }
|
|
|
707
|
|
|
708
|
|
|
709 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
|
|
|
710 EXPR from input block IB. DATA_IN contains tables and descriptors for the
|
|
|
711 file being read. */
|
|
|
712
|
|
|
713 static void
|
|
|
714 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
|
|
|
715 struct data_in *data_in, tree expr)
|
|
|
716 {
|
|
|
717 if (TREE_CODE (expr) == TYPE_DECL)
|
|
|
718 DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in);
|
|
|
719 }
|
|
|
720
|
|
|
721
|
|
|
722 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
|
|
|
723 from input block IB. DATA_IN contains tables and descriptors for the
|
|
|
724 file being read. */
|
|
|
725
|
|
|
726 static void
|
|
|
727 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
|
|
|
728 struct data_in *data_in, tree expr)
|
|
|
729 {
|
|
|
730 tree id;
|
|
|
731
|
|
|
732 id = stream_read_tree (ib, data_in);
|
|
|
733 if (id)
|
|
|
734 {
|
|
|
735 gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
|
|
|
736 SET_DECL_ASSEMBLER_NAME (expr, id);
|
|
|
737 }
|
|
|
738 }
|
|
|
739
|
|
|
740
|
|
|
741 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
|
|
|
742 input block IB. DATA_IN contains tables and descriptors for the
|
|
|
743 file being read. */
|
|
|
744
|
|
|
745 static void
|
|
|
746 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
|
|
|
747 struct data_in *data_in, tree expr)
|
|
|
748 {
|
|
|
749 DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
|
|
|
750 DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
|
|
|
751 DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
|
|
|
752 DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
|
|
|
753 DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in);
|
|
|
754 }
|
|
|
755
|
|
|
756
|
|
|
757 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
|
|
|
758 from input block IB. DATA_IN contains tables and descriptors for the
|
|
|
759 file being read. */
|
|
|
760
|
|
|
761 static void
|
|
|
762 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
|
|
|
763 struct data_in *data_in, tree expr)
|
|
|
764 {
|
|
|
765 DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
|
|
|
766 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
|
|
|
767 DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
|
|
|
768 #ifndef ACCEL_COMPILER
|
|
|
769 DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
|
|
|
770 #endif
|
|
|
771 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
|
|
|
772 #ifdef ACCEL_COMPILER
|
|
|
773 {
|
|
|
774 tree opts = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr);
|
|
|
775 if (opts)
|
|
|
776 {
|
|
|
777 struct gcc_options tmp;
|
|
|
778 init_options_struct (&tmp, NULL);
|
|
|
779 cl_optimization_restore (&tmp, TREE_OPTIMIZATION (opts));
|
|
|
780 finish_options (&tmp, &global_options_set, UNKNOWN_LOCATION);
|
|
|
781 opts = build_optimization_node (&tmp);
|
|
|
782 finalize_options_struct (&tmp);
|
|
|
783 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = opts;
|
|
|
784 }
|
|
|
785 }
|
|
|
786 #endif
|
|
|
787
|
|
|
788 /* If the file contains a function with an EH personality set,
|
|
|
789 then it was compiled with -fexceptions. In that case, initialize
|
|
|
790 the backend EH machinery. */
|
|
|
791 if (DECL_FUNCTION_PERSONALITY (expr))
|
|
|
792 lto_init_eh ();
|
|
|
793 }
|
|
|
794
|
|
|
795
|
|
|
796 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
|
|
|
797 input block IB. DATA_IN contains tables and descriptors for the file
|
|
|
798 being read. */
|
|
|
799
|
|
|
800 static void
|
|
|
801 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
|
|
|
802 struct data_in *data_in, tree expr)
|
|
|
803 {
|
|
|
804 TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
|
|
|
805 TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
|
|
|
806 TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
|
|
|
807 TYPE_NAME (expr) = stream_read_tree (ib, data_in);
|
|
|
808 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
|
|
|
809 reconstructed during fixup. */
|
|
|
810 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
|
|
|
811 during fixup. */
|
|
|
812 TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
|
|
|
813 TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
|
|
|
814 /* TYPE_CANONICAL gets re-computed during type merging. */
|
|
|
815 TYPE_CANONICAL (expr) = NULL_TREE;
|
|
|
816 TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
|
|
|
817 }
|
|
|
818
|
|
|
819 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
|
|
|
820 from input block IB. DATA_IN contains tables and descriptors for the
|
|
|
821 file being read. */
|
|
|
822
|
|
|
823 static void
|
|
|
824 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
|
|
|
825 struct data_in *data_in,
|
|
|
826 tree expr)
|
|
|
827 {
|
|
|
828 if (TREE_CODE (expr) == ENUMERAL_TYPE)
|
|
|
829 TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
|
|
|
830 else if (TREE_CODE (expr) == ARRAY_TYPE)
|
|
|
831 TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
|
|
|
832 else if (RECORD_OR_UNION_TYPE_P (expr))
|
|
|
833 TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
|
|
|
834 else if (TREE_CODE (expr) == FUNCTION_TYPE
|
|
|
835 || TREE_CODE (expr) == METHOD_TYPE)
|
|
|
836 TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
|
|
|
837
|
|
|
838 if (!POINTER_TYPE_P (expr))
|
|
|
839 TYPE_MIN_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
|
|
|
840 TYPE_MAX_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
|
|
|
841 }
|
|
|
842
|
|
|
843
|
|
|
844 /* Read all pointer fields in the TS_LIST structure of EXPR from input
|
|
|
845 block IB. DATA_IN contains tables and descriptors for the
|
|
|
846 file being read. */
|
|
|
847
|
|
|
848 static void
|
|
|
849 lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
|
|
|
850 struct data_in *data_in, tree expr)
|
|
|
851 {
|
|
|
852 TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
|
|
|
853 TREE_VALUE (expr) = stream_read_tree (ib, data_in);
|
|
|
854 TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
|
|
|
855 }
|
|
|
856
|
|
|
857
|
|
|
858 /* Read all pointer fields in the TS_VEC structure of EXPR from input
|
|
|
859 block IB. DATA_IN contains tables and descriptors for the
|
|
|
860 file being read. */
|
|
|
861
|
|
|
862 static void
|
|
|
863 lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
|
|
|
864 struct data_in *data_in, tree expr)
|
|
|
865 {
|
|
|
866 int i;
|
|
|
867
|
|
|
868 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
|
|
|
869 instantiate EXPR. */
|
|
|
870 for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
|
|
|
871 TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
|
|
|
872 }
|
|
|
873
|
|
|
874
|
|
|
875 /* Read all pointer fields in the TS_EXP structure of EXPR from input
|
|
|
876 block IB. DATA_IN contains tables and descriptors for the
|
|
|
877 file being read. */
|
|
|
878
|
|
|
879
|
|
|
880 static void
|
|
|
881 lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
|
|
|
882 struct data_in *data_in, tree expr)
|
|
|
883 {
|
|
|
884 int i;
|
|
|
885 tree block;
|
|
|
886
|
|
|
887 for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
|
|
|
888 TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
|
|
|
889
|
|
|
890 block = stream_read_tree (ib, data_in);
|
|
|
891
|
|
|
892 /* TODO: Block is stored in the locus information. It may make more sense to
|
|
|
893 to make it go via the location cache. */
|
|
|
894 if (block)
|
|
|
895 {
|
|
|
896 data_in->location_cache.apply_location_cache ();
|
|
|
897 TREE_SET_BLOCK (expr, block);
|
|
|
898 }
|
|
|
899 }
|
|
|
900
|
|
|
901
|
|
|
902 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
|
|
|
903 block IB. DATA_IN contains tables and descriptors for the
|
|
|
904 file being read. */
|
|
|
905
|
|
|
906 static void
|
|
|
907 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
|
|
|
908 struct data_in *data_in, tree expr)
|
|
|
909 {
|
|
|
910 BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
|
|
|
911
|
|
|
912 BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
|
|
|
913
|
|
|
914 /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
|
|
|
915 the limited cases we can handle - those that represent inlined
|
|
|
916 function scopes. For the rest them on the floor instead of ICEing in
|
|
|
917 dwarf2out.c. */
|
|
|
918 BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
|
|
|
919 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
|
|
|
920 for early inlined BLOCKs so drop it on the floor instead of ICEing in
|
|
|
921 dwarf2out.c. */
|
|
|
922
|
|
|
923 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
|
|
|
924 streaming time. */
|
|
|
925
|
|
|
926 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
|
|
|
927 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
|
|
|
928 stream the child relationship explicitly. */
|
|
|
929 if (BLOCK_SUPERCONTEXT (expr)
|
|
|
930 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
|
|
|
931 {
|
|
|
932 BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
|
|
|
933 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
|
|
|
934 }
|
|
|
935
|
|
|
936 /* The global block is rooted at the TU decl. Hook it here to
|
|
|
937 avoid the need to stream in this block during WPA time. */
|
|
|
938 else if (BLOCK_SUPERCONTEXT (expr)
|
|
|
939 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
|
|
|
940 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
|
|
|
941
|
|
|
942 /* The function-level block is connected at the time we read in
|
|
|
943 function bodies for the same reason. */
|
|
|
944 }
|
|
|
945
|
|
|
946
|
|
|
947 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
|
|
|
948 block IB. DATA_IN contains tables and descriptors for the
|
|
|
949 file being read. */
|
|
|
950
|
|
|
951 static void
|
|
|
952 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
|
|
|
953 struct data_in *data_in, tree expr)
|
|
|
954 {
|
|
|
955 unsigned i;
|
|
|
956 tree t;
|
|
|
957
|
|
|
958 /* Note that the number of slots in EXPR was read in
|
|
|
959 streamer_alloc_tree when instantiating EXPR. However, the
|
|
|
960 vector is empty so we cannot rely on vec::length to know how many
|
|
|
961 elements to read. So, this list is emitted as a 0-terminated
|
|
|
962 list on the writer side. */
|
|
|
963 do
|
|
|
964 {
|
|
|
965 t = stream_read_tree (ib, data_in);
|
|
|
966 if (t)
|
|
|
967 BINFO_BASE_BINFOS (expr)->quick_push (t);
|
|
|
968 }
|
|
|
969 while (t);
|
|
|
970
|
|
|
971 BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
|
|
|
972 BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
|
|
|
973 BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in);
|
|
|
974
|
|
|
975 /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
|
|
|
976 unpacking the bitfield section. */
|
|
|
977 for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++)
|
|
|
978 {
|
|
|
979 tree a = stream_read_tree (ib, data_in);
|
|
|
980 (*BINFO_BASE_ACCESSES (expr))[i] = a;
|
|
|
981 }
|
|
|
982 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
|
|
|
983 and BINFO_VPTR_INDEX; these are used by C++ FE only. */
|
|
|
984 }
|
|
|
985
|
|
|
986
|
|
|
987 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
|
|
|
988 input block IB. DATA_IN contains tables and descriptors for the
|
|
|
989 file being read. */
|
|
|
990
|
|
|
991 static void
|
|
|
992 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
|
|
|
993 struct data_in *data_in, tree expr)
|
|
|
994 {
|
|
|
995 unsigned i;
|
|
|
996
|
|
|
997 for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
|
|
|
998 {
|
|
|
999 constructor_elt e;
|
|
|
1000 e.index = stream_read_tree (ib, data_in);
|
|
|
1001 e.value = stream_read_tree (ib, data_in);
|
|
|
1002 (*CONSTRUCTOR_ELTS (expr))[i] = e;
|
|
|
1003 }
|
|
|
1004 }
|
|
|
1005
|
|
|
1006
|
|
|
1007 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
|
|
|
1008 input block IB. DATA_IN contains tables and descriptors for the
|
|
|
1009 file being read. */
|
|
|
1010
|
|
|
1011 static void
|
|
|
1012 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
|
|
|
1013 struct data_in *data_in, tree expr)
|
|
|
1014 {
|
|
|
1015 int i;
|
|
|
1016
|
|
|
1017 for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
|
|
|
1018 OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
|
|
|
1019 OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
|
|
|
1020 }
|
|
|
1021
|
|
|
1022
|
|
|
1023 /* Read all pointer fields in EXPR from input block IB. DATA_IN
|
|
|
1024 contains tables and descriptors for the file being read. */
|
|
|
1025
|
|
|
1026 void
|
|
|
1027 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
|
|
|
1028 tree expr)
|
|
|
1029 {
|
|
|
1030 enum tree_code code;
|
|
|
1031
|
|
|
1032 code = TREE_CODE (expr);
|
|
|
1033
|
|
|
1034 if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
|
|
|
1035 lto_input_ts_common_tree_pointers (ib, data_in, expr);
|
|
|
1036
|
|
|
1037 if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
|
|
|
1038 lto_input_ts_vector_tree_pointers (ib, data_in, expr);
|
|
|
1039
|
|
|
1040 if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
|
|
|
1041 lto_input_ts_complex_tree_pointers (ib, data_in, expr);
|
|
|
1042
|
|
|
1043 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
|
|
|
1044 lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
|
|
|
1045
|
|
|
1046 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
|
|
|
1047 lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
|
|
|
1048
|
|
|
1049 if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
|
|
|
1050 lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
|
|
|
1051
|
|
|
1052 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
|
|
|
1053 lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
|
|
|
1054
|
|
|
1055 if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
|
|
|
1056 lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
|
|
|
1057
|
|
|
1058 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
|
|
|
1059 lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
|
|
|
1060
|
|
|
1061 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
|
|
|
1062 lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
|
|
|
1063
|
|
|
1064 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
|
|
|
1065 lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
|
|
|
1066
|
|
|
1067 if (CODE_CONTAINS_STRUCT (code, TS_LIST))
|
|
|
1068 lto_input_ts_list_tree_pointers (ib, data_in, expr);
|
|
|
1069
|
|
|
1070 if (CODE_CONTAINS_STRUCT (code, TS_VEC))
|
|
|
1071 lto_input_ts_vec_tree_pointers (ib, data_in, expr);
|
|
|
1072
|
|
|
1073 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
|
|
|
1074 lto_input_ts_exp_tree_pointers (ib, data_in, expr);
|
|
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1075
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1076 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
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1077 lto_input_ts_block_tree_pointers (ib, data_in, expr);
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1078
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|
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1079 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
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1080 lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
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|
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1081
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|
|
1082 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
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|
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1083 lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
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|
|
1084
|
|
|
1085 if (code == OMP_CLAUSE)
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|
|
1086 lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
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|
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1087 }
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|
1088
|
|
|
1089
|
|
|
1090 /* Read an index IX from input block IB and return the tree node at
|
|
|
1091 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
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|
|
1092
|
|
|
1093 tree
|
|
|
1094 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
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|
|
1095 {
|
|
|
1096 unsigned HOST_WIDE_INT ix;
|
|
|
1097 tree result;
|
|
|
1098 enum LTO_tags expected_tag;
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|
|
1099
|
|
|
1100 ix = streamer_read_uhwi (ib);
|
|
|
1101 expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
|
|
|
1102
|
|
|
1103 result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
|
|
|
1104 gcc_assert (result
|
|
|
1105 && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
|
|
|
1106
|
|
|
1107 return result;
|
|
|
1108 }
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