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1 /****************************************************************************
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2 * *
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3 * GNAT COMPILER COMPONENTS *
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4 * *
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5 * A D A - T R E E *
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6 * *
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7 * C Header File *
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8 * *
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145
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9 * Copyright (C) 1992-2019, Free Software Foundation, Inc. *
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111
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10 * *
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11 * GNAT is free software; you can redistribute it and/or modify it under *
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12 * terms of the GNU General Public License as published by the Free Soft- *
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13 * ware Foundation; either version 3, or (at your option) any later ver- *
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14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
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15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
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16 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
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17 * for more details. You should have received a copy of the GNU General *
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18 * Public License 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 * GNAT was originally developed by the GNAT team at New York University. *
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22 * Extensive contributions were provided by Ada Core Technologies Inc. *
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23 * *
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24 ****************************************************************************/
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25
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26 /* The resulting tree type. */
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27 union GTY((desc ("0"),
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28 chain_next ("CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_COMMON) ? ((union lang_tree_node *) TREE_CHAIN (&%h.generic)) : NULL")))
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29 lang_tree_node
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30 {
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31 union tree_node GTY((tag ("0"),
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32 desc ("tree_node_structure (&%h)"))) generic;
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33 };
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34
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35 /* Ada uses the lang_decl and lang_type fields to hold a tree. */
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36 struct GTY(()) lang_type { tree t1; tree t2; };
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37 struct GTY(()) lang_decl { tree t; };
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38
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39 extern struct lang_type *get_lang_specific (tree node);
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40
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41 /* Macros to get and set the trees in TYPE_LANG_SPECIFIC. */
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42 #define GET_TYPE_LANG_SPECIFIC(NODE) \
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43 (TYPE_LANG_SPECIFIC (NODE) ? TYPE_LANG_SPECIFIC (NODE)->t1 : NULL_TREE)
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44
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45 #define SET_TYPE_LANG_SPECIFIC(NODE, X) (get_lang_specific (NODE)->t1 = (X))
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46
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47 #define GET_TYPE_LANG_SPECIFIC2(NODE) \
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48 (TYPE_LANG_SPECIFIC (NODE) ? TYPE_LANG_SPECIFIC (NODE)->t2 : NULL_TREE)
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49
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50 #define SET_TYPE_LANG_SPECIFIC2(NODE, X) (get_lang_specific (NODE)->t2 = (X))
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51
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52 /* Macros to get and set the tree in DECL_LANG_SPECIFIC. */
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53 #define GET_DECL_LANG_SPECIFIC(NODE) \
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54 (DECL_LANG_SPECIFIC (NODE) ? DECL_LANG_SPECIFIC (NODE)->t : NULL_TREE)
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55
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56 #define SET_DECL_LANG_SPECIFIC(NODE, X) \
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57 do { \
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58 tree tmp = (X); \
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59 if (!DECL_LANG_SPECIFIC (NODE)) \
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60 DECL_LANG_SPECIFIC (NODE) \
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61 = ggc_alloc<struct lang_decl> (); \
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62 DECL_LANG_SPECIFIC (NODE)->t = tmp; \
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63 } while (0)
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64
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65
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66 /* Flags added to type nodes. */
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67
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68 /* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, nonzero if this is a
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69 record being used as a fat pointer (only true for RECORD_TYPE). */
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70 #define TYPE_FAT_POINTER_P(NODE) \
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71 TYPE_LANG_FLAG_0 (RECORD_OR_UNION_CHECK (NODE))
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72
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73 #define TYPE_IS_FAT_POINTER_P(NODE) \
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74 (TREE_CODE (NODE) == RECORD_TYPE && TYPE_FAT_POINTER_P (NODE))
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75
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76 /* For integral types and array types, nonzero if this is a packed array type
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77 used for bit-packed types. Such types should not be extended to a larger
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78 size or validated against a specified size. */
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79 #define TYPE_PACKED_ARRAY_TYPE_P(NODE) \
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80 TYPE_LANG_FLAG_0 (TREE_CHECK2 (NODE, INTEGER_TYPE, ARRAY_TYPE))
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81
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82 #define TYPE_IS_PACKED_ARRAY_TYPE_P(NODE) \
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83 ((TREE_CODE (NODE) == INTEGER_TYPE || TREE_CODE (NODE) == ARRAY_TYPE) \
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84 && TYPE_PACKED_ARRAY_TYPE_P (NODE))
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85
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131
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86 /* For FUNCTION_TYPE and METHOD_TYPE, nonzero if the function returns by
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87 direct reference, i.e. the callee returns a pointer to a memory location
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88 it has allocated and the caller only needs to dereference the pointer. */
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89 #define TYPE_RETURN_BY_DIRECT_REF_P(NODE) \
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90 TYPE_LANG_FLAG_0 (FUNC_OR_METHOD_CHECK (NODE))
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91
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111
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92 /* For INTEGER_TYPE, nonzero if this is a modular type with a modulus that
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93 is not equal to two to the power of its mode's size. */
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94 #define TYPE_MODULAR_P(NODE) TYPE_LANG_FLAG_1 (INTEGER_TYPE_CHECK (NODE))
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95
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96 /* For ARRAY_TYPE, nonzero if this type corresponds to a dimension of
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97 an Ada array other than the first. */
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98 #define TYPE_MULTI_ARRAY_P(NODE) TYPE_LANG_FLAG_1 (ARRAY_TYPE_CHECK (NODE))
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99
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131
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100 /* For FUNCTION_TYPE and METHOD_TYPE, nonzero if function returns an
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101 unconstrained array or record type. */
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111
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102 #define TYPE_RETURN_UNCONSTRAINED_P(NODE) \
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131
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103 TYPE_LANG_FLAG_1 (FUNC_OR_METHOD_CHECK (NODE))
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111
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104
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105 /* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, nonzero if this denotes
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106 a justified modular type (will only be true for RECORD_TYPE). */
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107 #define TYPE_JUSTIFIED_MODULAR_P(NODE) \
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108 TYPE_LANG_FLAG_1 (RECORD_OR_UNION_CHECK (NODE))
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109
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110 /* Nonzero in an arithmetic subtype if this is a subtype not known to the
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111 front-end. */
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112 #define TYPE_EXTRA_SUBTYPE_P(NODE) TYPE_LANG_FLAG_2 (INTEGER_TYPE_CHECK (NODE))
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113
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145
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114 #define TYPE_IS_EXTRA_SUBTYPE_P(NODE) \
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115 (TREE_CODE (NODE) == INTEGER_TYPE && TYPE_EXTRA_SUBTYPE_P (NODE))
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116
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111
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117 /* Nonzero for an aggregate type if this is a by-reference type. We also
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118 set this on an ENUMERAL_TYPE that is dummy. */
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119 #define TYPE_BY_REFERENCE_P(NODE) \
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120 TYPE_LANG_FLAG_2 (TREE_CHECK5 (NODE, RECORD_TYPE, UNION_TYPE, \
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121 ARRAY_TYPE, UNCONSTRAINED_ARRAY_TYPE, \
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122 ENUMERAL_TYPE))
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123
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124 #define TYPE_IS_BY_REFERENCE_P(NODE) \
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125 ((TREE_CODE (NODE) == RECORD_TYPE \
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126 || TREE_CODE (NODE) == UNION_TYPE \
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127 || TREE_CODE (NODE) == ARRAY_TYPE \
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128 || TREE_CODE (NODE) == UNCONSTRAINED_ARRAY_TYPE \
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129 || TREE_CODE (NODE) == ENUMERAL_TYPE) \
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130 && TYPE_BY_REFERENCE_P (NODE))
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131
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132 /* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, nonzero if this is the
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133 type for an object whose type includes its template in addition to
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134 its value (only true for RECORD_TYPE). */
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135 #define TYPE_CONTAINS_TEMPLATE_P(NODE) \
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136 TYPE_LANG_FLAG_3 (RECORD_OR_UNION_CHECK (NODE))
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137
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138 /* For INTEGER_TYPE, nonzero if it implements a fixed-point type. */
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139 #define TYPE_FIXED_POINT_P(NODE) \
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140 TYPE_LANG_FLAG_3 (INTEGER_TYPE_CHECK (NODE))
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141
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142 #define TYPE_IS_FIXED_POINT_P(NODE) \
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143 (TREE_CODE (NODE) == INTEGER_TYPE && TYPE_FIXED_POINT_P (NODE))
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144
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145 /* True if NODE is a thin pointer. */
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146 #define TYPE_IS_THIN_POINTER_P(NODE) \
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147 (POINTER_TYPE_P (NODE) \
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148 && TREE_CODE (TREE_TYPE (NODE)) == RECORD_TYPE \
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149 && TYPE_CONTAINS_TEMPLATE_P (TREE_TYPE (NODE)))
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150
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151 /* True if TYPE is either a fat or thin pointer to an unconstrained
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152 array. */
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153 #define TYPE_IS_FAT_OR_THIN_POINTER_P(NODE) \
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154 (TYPE_IS_FAT_POINTER_P (NODE) || TYPE_IS_THIN_POINTER_P (NODE))
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155
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156 /* For INTEGER_TYPEs, nonzero if the type has a biased representation. */
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157 #define TYPE_BIASED_REPRESENTATION_P(NODE) \
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158 TYPE_LANG_FLAG_4 (INTEGER_TYPE_CHECK (NODE))
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159
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160 /* For ARRAY_TYPEs, nonzero if the array type has Convention_Fortran. */
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161 #define TYPE_CONVENTION_FORTRAN_P(NODE) \
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162 TYPE_LANG_FLAG_4 (ARRAY_TYPE_CHECK (NODE))
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163
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164 /* For RECORD_TYPE, UNION_TYPE and ENUMERAL_TYPE, nonzero if this is a dummy
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165 type, made to correspond to a private or incomplete type. */
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166 #define TYPE_DUMMY_P(NODE) \
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167 TYPE_LANG_FLAG_4 (TREE_CHECK3 (NODE, RECORD_TYPE, UNION_TYPE, ENUMERAL_TYPE))
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168
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169 #define TYPE_IS_DUMMY_P(NODE) \
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170 ((TREE_CODE (NODE) == RECORD_TYPE \
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171 || TREE_CODE (NODE) == UNION_TYPE \
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172 || TREE_CODE (NODE) == ENUMERAL_TYPE) \
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173 && TYPE_DUMMY_P (NODE))
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174
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175 /* For an INTEGER_TYPE, nonzero if TYPE_ACTUAL_BOUNDS is present. */
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176 #define TYPE_HAS_ACTUAL_BOUNDS_P(NODE) \
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177 TYPE_LANG_FLAG_5 (INTEGER_TYPE_CHECK (NODE))
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178
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179 /* For a RECORD_TYPE, nonzero if this was made just to supply needed
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180 padding or alignment. */
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181 #define TYPE_PADDING_P(NODE) TYPE_LANG_FLAG_5 (RECORD_TYPE_CHECK (NODE))
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182
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183 #define TYPE_IS_PADDING_P(NODE) \
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184 (TREE_CODE (NODE) == RECORD_TYPE && TYPE_PADDING_P (NODE))
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185
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186 /* True for a non-dummy type if TYPE can alias any other types. */
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187 #define TYPE_UNIVERSAL_ALIASING_P(NODE) TYPE_LANG_FLAG_6 (NODE)
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188
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189 /* True for a dummy type if TYPE appears in a profile. */
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190 #define TYPE_DUMMY_IN_PROFILE_P(NODE) TYPE_LANG_FLAG_6 (NODE)
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191
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131
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192 /* True if objects of this type are guaranteed to be properly aligned. */
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193 #define TYPE_ALIGN_OK(NODE) TYPE_LANG_FLAG_7 (NODE)
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194
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111
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195 /* True for types that implement a packed array and for original packed array
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196 types. */
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197 #define TYPE_IMPL_PACKED_ARRAY_P(NODE) \
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198 ((TREE_CODE (NODE) == ARRAY_TYPE && TYPE_PACKED (NODE)) \
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199 || (TREE_CODE (NODE) == INTEGER_TYPE && TYPE_PACKED_ARRAY_TYPE_P (NODE)))
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200
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201 /* True for types that can hold a debug type. */
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202 #define TYPE_CAN_HAVE_DEBUG_TYPE_P(NODE) (!TYPE_IMPL_PACKED_ARRAY_P (NODE))
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203
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204 /* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, this holds the maximum
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205 alignment value the type ought to have. */
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206 #define TYPE_MAX_ALIGN(NODE) (TYPE_PRECISION (RECORD_OR_UNION_CHECK (NODE)))
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207
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208 /* For an UNCONSTRAINED_ARRAY_TYPE, this is the record containing both the
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209 template and the object.
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210
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211 ??? We also put this on an ENUMERAL_TYPE that is dummy. Technically,
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212 this is a conflict on the minval field, but there doesn't seem to be
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213 simple fix, so we'll live with this kludge for now. */
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214 #define TYPE_OBJECT_RECORD_TYPE(NODE) \
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215 (TYPE_MIN_VALUE_RAW (TREE_CHECK2 ((NODE), UNCONSTRAINED_ARRAY_TYPE, \
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216 ENUMERAL_TYPE)))
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217
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218 /* For numerical types, this is the GCC lower bound of the type. The GCC
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219 type system is based on the invariant that an object X of a given type
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220 cannot hold at run time a value smaller than its lower bound; otherwise
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221 the behavior is undefined. The optimizer takes advantage of this and
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222 considers that the assertion X >= LB is always true. */
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223 #define TYPE_GCC_MIN_VALUE(NODE) \
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224 (TYPE_MIN_VALUE_RAW (NUMERICAL_TYPE_CHECK (NODE)))
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225
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226 /* For numerical types, this is the GCC upper bound of the type. The GCC
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227 type system is based on the invariant that an object X of a given type
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228 cannot hold at run time a value larger than its upper bound; otherwise
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229 the behavior is undefined. The optimizer takes advantage of this and
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230 considers that the assertion X <= UB is always true. */
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231 #define TYPE_GCC_MAX_VALUE(NODE) \
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232 (TYPE_MAX_VALUE_RAW (NUMERICAL_TYPE_CHECK (NODE)))
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233
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131
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234 /* For a FUNCTION_TYPE and METHOD_TYPE, if the function has parameters passed
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235 by copy in/copy out, this is the list of nodes used to specify the return
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236 values of these parameters. For a full description of the copy in/copy out
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237 parameter passing mechanism refer to the routine gnat_to_gnu_entity. */
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238 #define TYPE_CI_CO_LIST(NODE) TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE))
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239
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240 /* For an ARRAY_TYPE with variable size, this is the padding type built for
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241 the array type when it is itself the component type of another array. */
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242 #define TYPE_PADDING_FOR_COMPONENT(NODE) \
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243 TYPE_LANG_SLOT_1 (ARRAY_TYPE_CHECK (NODE))
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111
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244
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245 /* For a VECTOR_TYPE, this is the representative array type. */
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246 #define TYPE_REPRESENTATIVE_ARRAY(NODE) \
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247 TYPE_LANG_SLOT_1 (VECTOR_TYPE_CHECK (NODE))
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248
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249 /* For numerical types, this holds various RM-defined values. */
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250 #define TYPE_RM_VALUES(NODE) TYPE_LANG_SLOT_1 (NUMERICAL_TYPE_CHECK (NODE))
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251
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252 /* Macros to get and set the individual values in TYPE_RM_VALUES. */
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253 #define TYPE_RM_VALUE(NODE, N) \
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254 (TYPE_RM_VALUES (NODE) \
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255 ? TREE_VEC_ELT (TYPE_RM_VALUES (NODE), (N)) : NULL_TREE)
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256
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257 #define SET_TYPE_RM_VALUE(NODE, N, X) \
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258 do { \
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259 tree tmp = (X); \
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260 if (!TYPE_RM_VALUES (NODE)) \
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261 TYPE_RM_VALUES (NODE) = make_tree_vec (3); \
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262 /* ??? The field is not visited by the generic \
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263 code so we need to mark it manually. */ \
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264 MARK_VISITED (tmp); \
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265 TREE_VEC_ELT (TYPE_RM_VALUES (NODE), (N)) = tmp; \
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266 } while (0)
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267
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268 /* For numerical types, this is the RM size of the type, aka its precision.
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269 There is a discrepancy between what is called precision here (and more
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270 generally throughout gigi) and what is called precision in the GCC type
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271 system: in the former case it's TYPE_RM_SIZE whereas it's TYPE_PRECISION
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272 in the latter case. They are not identical because of the need to support
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273 invalid values.
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274
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275 These values can be outside the range of values allowed by the RM size
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276 but they must nevertheless be valid in the GCC type system, otherwise
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277 the optimizer can pretend that they simply don't exist. Therefore they
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278 must be within the range of values allowed by the precision in the GCC
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279 sense, hence TYPE_PRECISION be set to the Esize, not the RM size. */
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280 #define TYPE_RM_SIZE(NODE) TYPE_RM_VALUE ((NODE), 0)
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281 #define SET_TYPE_RM_SIZE(NODE, X) SET_TYPE_RM_VALUE ((NODE), 0, (X))
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282
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283 /* For numerical types, this is the RM lower bound of the type. There is
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284 again a discrepancy between this lower bound and the GCC lower bound,
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285 again because of the need to support invalid values.
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286
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287 These values can be outside the range of values allowed by the RM lower
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288 bound but they must nevertheless be valid in the GCC type system, otherwise
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289 the optimizer can pretend that they simply don't exist. Therefore they
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290 must be within the range of values allowed by the lower bound in the GCC
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291 sense, hence the GCC lower bound be set to that of the base type.
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292
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293 This lower bound is translated directly without the adjustments that may
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294 be required for type compatibility, so it will generally be necessary to
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295 convert it to the base type of the numerical type before using it. */
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296 #define TYPE_RM_MIN_VALUE(NODE) TYPE_RM_VALUE ((NODE), 1)
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297 #define SET_TYPE_RM_MIN_VALUE(NODE, X) SET_TYPE_RM_VALUE ((NODE), 1, (X))
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298
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299 /* For numerical types, this is the RM upper bound of the type. There is
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300 again a discrepancy between this upper bound and the GCC upper bound,
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301 again because of the need to support invalid values.
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302
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303 These values can be outside the range of values allowed by the RM upper
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304 bound but they must nevertheless be valid in the GCC type system, otherwise
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305 the optimizer can pretend that they simply don't exist. Therefore they
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306 must be within the range of values allowed by the upper bound in the GCC
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307 sense, hence the GCC upper bound be set to that of the base type.
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308
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309 This upper bound is translated directly without the adjustments that may
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310 be required for type compatibility, so it will generally be necessary to
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311 convert it to the base type of the numerical type before using it. */
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312 #define TYPE_RM_MAX_VALUE(NODE) TYPE_RM_VALUE ((NODE), 2)
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313 #define SET_TYPE_RM_MAX_VALUE(NODE, X) SET_TYPE_RM_VALUE ((NODE), 2, (X))
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314
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315 /* For numerical types, this is the lower bound of the type, i.e. the RM lower
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316 bound for language-defined types and the GCC lower bound for others. */
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317 #undef TYPE_MIN_VALUE
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318 #define TYPE_MIN_VALUE(NODE) \
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319 (TYPE_RM_MIN_VALUE (NODE) \
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320 ? TYPE_RM_MIN_VALUE (NODE) : TYPE_GCC_MIN_VALUE (NODE))
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321
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322 /* For numerical types, this is the upper bound of the type, i.e. the RM upper
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323 bound for language-defined types and the GCC upper bound for others. */
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324 #undef TYPE_MAX_VALUE
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325 #define TYPE_MAX_VALUE(NODE) \
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326 (TYPE_RM_MAX_VALUE (NODE) \
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327 ? TYPE_RM_MAX_VALUE (NODE) : TYPE_GCC_MAX_VALUE (NODE))
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328
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329 /* For an INTEGER_TYPE with TYPE_MODULAR_P, this is the value of the
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330 modulus. */
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331 #define TYPE_MODULUS(NODE) \
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332 GET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))
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333 #define SET_TYPE_MODULUS(NODE, X) \
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334 SET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE), X)
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335
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336 /* For an INTEGER_TYPE that is the TYPE_DOMAIN of some ARRAY_TYPE, this is
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337 the type corresponding to the Ada index type. It is necessary to keep
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338 these 2 views for every array type because the TYPE_DOMAIN is subject
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339 to strong constraints in GENERIC: it must be a subtype of SIZETYPE and
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340 may not be superflat, i.e. the upper bound must always be larger or
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341 equal to the lower bound minus 1 (i.e. the canonical length formula
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342 must always yield a non-negative number), which means that at least
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343 one of the bounds may need to be a conditional expression. There are
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344 no such constraints on the TYPE_INDEX_TYPE because gigi is prepared to
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345 deal with the superflat case; moreover the TYPE_INDEX_TYPE is used as
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346 the index type for the debug info and, therefore, needs to be as close
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347 as possible to the source index type. */
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348 #define TYPE_INDEX_TYPE(NODE) \
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349 GET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))
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350 #define SET_TYPE_INDEX_TYPE(NODE, X) \
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351 SET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE), X)
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352
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353 /* For an INTEGER_TYPE with TYPE_HAS_ACTUAL_BOUNDS_P or an ARRAY_TYPE, this is
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354 the index type that should be used when the actual bounds are required for
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355 a template. This is used in the case of packed arrays. */
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356 #define TYPE_ACTUAL_BOUNDS(NODE) \
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357 GET_TYPE_LANG_SPECIFIC (TREE_CHECK2 (NODE, INTEGER_TYPE, ARRAY_TYPE))
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358 #define SET_TYPE_ACTUAL_BOUNDS(NODE, X) \
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359 SET_TYPE_LANG_SPECIFIC (TREE_CHECK2 (NODE, INTEGER_TYPE, ARRAY_TYPE), X)
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360
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361 /* For a POINTER_TYPE that points to the template type of an unconstrained
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362 array type, this is the address to be used in a null fat pointer. */
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363 #define TYPE_NULL_BOUNDS(NODE) \
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364 GET_TYPE_LANG_SPECIFIC (POINTER_TYPE_CHECK (NODE))
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365 #define SET_TYPE_NULL_BOUNDS(NODE, X) \
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366 SET_TYPE_LANG_SPECIFIC (POINTER_TYPE_CHECK (NODE), X)
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367
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368 /* For a RECORD_TYPE that is a fat pointer, this is the type for the
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369 unconstrained array. Likewise for a RECORD_TYPE that is pointed
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370 to by a thin pointer, if it is made for the unconstrained array
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371 type itself; the field is NULL_TREE if the RECORD_TYPE is made
|
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372 for a constrained subtype of the array type. */
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373 #define TYPE_UNCONSTRAINED_ARRAY(NODE) \
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374 GET_TYPE_LANG_SPECIFIC (RECORD_TYPE_CHECK (NODE))
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|
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375 #define SET_TYPE_UNCONSTRAINED_ARRAY(NODE, X) \
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376 SET_TYPE_LANG_SPECIFIC (RECORD_TYPE_CHECK (NODE), X)
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377
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378 /* For other RECORD_TYPEs and all UNION_TYPEs and QUAL_UNION_TYPEs, this is
|
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|
379 the Ada size of the object. This differs from the GCC size in that it
|
|
|
380 does not include any rounding up to the alignment of the type. */
|
|
|
381 #define TYPE_ADA_SIZE(NODE) \
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|
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382 GET_TYPE_LANG_SPECIFIC (RECORD_OR_UNION_CHECK (NODE))
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|
|
383 #define SET_TYPE_ADA_SIZE(NODE, X) \
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384 SET_TYPE_LANG_SPECIFIC (RECORD_OR_UNION_CHECK (NODE), X)
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385
|
|
|
386 /* For an INTEGER_TYPE with TYPE_IS_FIXED_POINT_P, this is the value of the
|
|
|
387 scale factor. Modular types, index types (sizetype subtypes) and
|
|
|
388 fixed-point types are totally distinct types, so there is no problem with
|
|
|
389 sharing type lang specific's first slot. */
|
|
|
390 #define TYPE_SCALE_FACTOR(NODE) \
|
|
|
391 GET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))
|
|
|
392 #define SET_TYPE_SCALE_FACTOR(NODE, X) \
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|
|
393 SET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE), X)
|
|
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394
|
|
|
395 /* For types with TYPE_CAN_HAVE_DEBUG_TYPE_P, this is the type to use in
|
|
|
396 debugging information. */
|
|
|
397 #define TYPE_DEBUG_TYPE(NODE) \
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|
|
398 GET_TYPE_LANG_SPECIFIC2 (NODE)
|
|
|
399 #define SET_TYPE_DEBUG_TYPE(NODE, X) \
|
|
|
400 SET_TYPE_LANG_SPECIFIC2 (NODE, X)
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|
401
|
|
|
402 /* For types with TYPE_IMPL_PACKED_ARRAY_P, this is the original packed
|
|
|
403 array type. Note that this predicate is true for original packed array
|
|
|
404 types, so these cannot have a debug type. */
|
|
|
405 #define TYPE_ORIGINAL_PACKED_ARRAY(NODE) \
|
|
|
406 GET_TYPE_LANG_SPECIFIC2 (NODE)
|
|
|
407 #define SET_TYPE_ORIGINAL_PACKED_ARRAY(NODE, X) \
|
|
|
408 SET_TYPE_LANG_SPECIFIC2 (NODE, X)
|
|
|
409
|
|
|
410
|
|
|
411 /* Flags added to decl nodes. */
|
|
|
412
|
|
|
413 /* Nonzero in a FUNCTION_DECL that represents a stubbed function
|
|
|
414 discriminant. */
|
|
|
415 #define DECL_STUBBED_P(NODE) DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
|
|
|
416
|
|
|
417 /* Nonzero in a VAR_DECL if it is guaranteed to be constant after having
|
|
|
418 been elaborated and TREE_READONLY is not set on it. */
|
|
|
419 #define DECL_READONLY_ONCE_ELAB(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
|
|
|
420
|
|
|
421 /* Nonzero in a CONST_DECL if its value is (essentially) the address of a
|
|
|
422 constant CONSTRUCTOR. */
|
|
|
423 #define DECL_CONST_ADDRESS_P(NODE) DECL_LANG_FLAG_0 (CONST_DECL_CHECK (NODE))
|
|
|
424
|
|
|
425 /* Nonzero in a FIELD_DECL if it is declared as aliased. */
|
|
|
426 #define DECL_ALIASED_P(NODE) DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE))
|
|
|
427
|
|
|
428 /* Nonzero in a TYPE_DECL if this is the declaration of a Taft amendment type
|
|
|
429 in the main unit, i.e. the full declaration is available. */
|
|
|
430 #define DECL_TAFT_TYPE_P(NODE) DECL_LANG_FLAG_0 (TYPE_DECL_CHECK (NODE))
|
|
|
431
|
|
|
432 /* Nonzero in a PARM_DECL passed by reference but for which only a restricted
|
|
|
433 form of aliasing is allowed. The first restriction comes explicitly from
|
|
|
434 the RM 6.2(12) clause: there is no read-after-write dependency between a
|
|
|
435 store based on such a PARM_DECL and a load not based on this PARM_DECL,
|
|
|
436 so stores based on such PARM_DECLs can be sunk past all loads based on
|
|
|
437 a distinct object. The second restriction can be inferred from the same
|
|
|
438 clause: there is no write-after-write dependency between a store based
|
|
|
439 on such a PARM_DECL and a store based on a distinct such PARM_DECL, as
|
|
|
440 the compiler would be allowed to pass the parameters by copy and the
|
|
|
441 order of assignment to actual parameters after a call is arbitrary as
|
|
|
442 per the RM 6.4.1(17) clause, so stores based on distinct such PARM_DECLs
|
|
|
443 can be swapped. */
|
|
|
444 #define DECL_RESTRICTED_ALIASING_P(NODE) \
|
|
|
445 DECL_LANG_FLAG_0 (PARM_DECL_CHECK (NODE))
|
|
|
446
|
|
|
447 /* Nonzero in a DECL if it is always used by reference, i.e. an INDIRECT_REF
|
|
|
448 is needed to access the object. */
|
|
|
449 #define DECL_BY_REF_P(NODE) DECL_LANG_FLAG_1 (NODE)
|
|
|
450
|
|
|
451 /* Nonzero in a DECL if it is made for a pointer that can never be null. */
|
|
|
452 #define DECL_CAN_NEVER_BE_NULL_P(NODE) DECL_LANG_FLAG_2 (NODE)
|
|
|
453
|
|
|
454 /* Nonzero in a VAR_DECL if it is made for a loop parameter. */
|
|
|
455 #define DECL_LOOP_PARM_P(NODE) DECL_LANG_FLAG_3 (VAR_DECL_CHECK (NODE))
|
|
|
456
|
|
|
457 /* Nonzero in a FIELD_DECL that is a dummy built for some internal reason. */
|
|
|
458 #define DECL_INTERNAL_P(NODE) DECL_LANG_FLAG_3 (FIELD_DECL_CHECK (NODE))
|
|
|
459
|
|
|
460 /* Nonzero in a PARM_DECL if it is made for an Ada array being passed to a
|
|
|
461 foreign convention subprogram. */
|
|
|
462 #define DECL_BY_COMPONENT_PTR_P(NODE) DECL_LANG_FLAG_3 (PARM_DECL_CHECK (NODE))
|
|
|
463
|
|
|
464 /* Nonzero in a FUNCTION_DECL that corresponds to an elaboration procedure. */
|
|
|
465 #define DECL_ELABORATION_PROC_P(NODE) \
|
|
|
466 DECL_LANG_FLAG_3 (FUNCTION_DECL_CHECK (NODE))
|
|
|
467
|
|
|
468 /* Nonzero in a CONST_DECL, VAR_DECL or PARM_DECL if it is made for a pointer
|
|
|
469 that points to something which is readonly. */
|
|
|
470 #define DECL_POINTS_TO_READONLY_P(NODE) DECL_LANG_FLAG_4 (NODE)
|
|
|
471
|
|
|
472 /* Nonzero in a FIELD_DECL if it is invariant once set, for example if it is
|
|
|
473 a discriminant of a discriminated type without default expression. */
|
|
|
474 #define DECL_INVARIANT_P(NODE) DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE))
|
|
|
475
|
|
|
476 /* Nonzero in a FUNCTION_DECL if this is a definition, i.e. if it was created
|
|
|
477 by a call to gnat_to_gnu_entity with definition set to True. */
|
|
|
478 #define DECL_FUNCTION_IS_DEF(NODE) \
|
|
|
479 DECL_LANG_FLAG_4 (FUNCTION_DECL_CHECK (NODE))
|
|
|
480
|
|
|
481 /* Nonzero in a VAR_DECL if it is a temporary created to hold the return
|
|
|
482 value of a function call or 'reference to a function call. */
|
|
|
483 #define DECL_RETURN_VALUE_P(NODE) DECL_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
|
|
|
484
|
|
145
|
485 /* Nonzero in a PARM_DECL if its mechanism was forced to by-reference. */
|
|
|
486 #define DECL_FORCED_BY_REF_P(NODE) DECL_LANG_FLAG_5 (PARM_DECL_CHECK (NODE))
|
|
|
487
|
|
111
|
488 /* In a FIELD_DECL corresponding to a discriminant, contains the
|
|
|
489 discriminant number. */
|
|
|
490 #define DECL_DISCRIMINANT_NUMBER(NODE) DECL_INITIAL (FIELD_DECL_CHECK (NODE))
|
|
|
491
|
|
|
492 /* In a CONST_DECL, points to a VAR_DECL that is allocatable to
|
|
|
493 memory. Used when a scalar constant is aliased or has its
|
|
|
494 address taken. */
|
|
|
495 #define DECL_CONST_CORRESPONDING_VAR(NODE) \
|
|
|
496 GET_DECL_LANG_SPECIFIC (CONST_DECL_CHECK (NODE))
|
|
|
497 #define SET_DECL_CONST_CORRESPONDING_VAR(NODE, X) \
|
|
|
498 SET_DECL_LANG_SPECIFIC (CONST_DECL_CHECK (NODE), X)
|
|
|
499
|
|
|
500 /* In a FIELD_DECL, points to the FIELD_DECL that was the ultimate
|
|
|
501 source of the decl. */
|
|
|
502 #define DECL_ORIGINAL_FIELD(NODE) \
|
|
|
503 GET_DECL_LANG_SPECIFIC (FIELD_DECL_CHECK (NODE))
|
|
|
504 #define SET_DECL_ORIGINAL_FIELD(NODE, X) \
|
|
|
505 SET_DECL_LANG_SPECIFIC (FIELD_DECL_CHECK (NODE), X)
|
|
|
506
|
|
|
507 /* Set DECL_ORIGINAL_FIELD of FIELD1 to (that of) FIELD2. */
|
|
|
508 #define SET_DECL_ORIGINAL_FIELD_TO_FIELD(FIELD1, FIELD2) \
|
|
|
509 SET_DECL_ORIGINAL_FIELD ((FIELD1), \
|
|
|
510 DECL_ORIGINAL_FIELD (FIELD2) \
|
|
|
511 ? DECL_ORIGINAL_FIELD (FIELD2) : (FIELD2))
|
|
|
512
|
|
|
513 /* Return true if FIELD1 and FIELD2 represent the same field. */
|
|
|
514 #define SAME_FIELD_P(FIELD1, FIELD2) \
|
|
|
515 ((FIELD1) == (FIELD2) \
|
|
|
516 || DECL_ORIGINAL_FIELD (FIELD1) == (FIELD2) \
|
|
|
517 || (FIELD1) == DECL_ORIGINAL_FIELD (FIELD2) \
|
|
|
518 || (DECL_ORIGINAL_FIELD (FIELD1) \
|
|
|
519 && (DECL_ORIGINAL_FIELD (FIELD1) == DECL_ORIGINAL_FIELD (FIELD2))))
|
|
|
520
|
|
|
521 /* In a VAR_DECL with the DECL_LOOP_PARM_P flag set, points to the special
|
|
|
522 induction variable that is built under certain circumstances, if any. */
|
|
|
523 #define DECL_INDUCTION_VAR(NODE) \
|
|
|
524 GET_DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))
|
|
|
525 #define SET_DECL_INDUCTION_VAR(NODE, X) \
|
|
|
526 SET_DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE), X)
|
|
|
527
|
|
|
528 /* In a VAR_DECL without the DECL_LOOP_PARM_P flag set and that is a renaming
|
|
|
529 pointer, points to the object being renamed, if any. */
|
|
|
530 #define DECL_RENAMED_OBJECT(NODE) \
|
|
|
531 GET_DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))
|
|
|
532 #define SET_DECL_RENAMED_OBJECT(NODE, X) \
|
|
|
533 SET_DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE), X)
|
|
|
534
|
|
|
535 /* In a TYPE_DECL, points to the parallel type if any, otherwise 0. */
|
|
|
536 #define DECL_PARALLEL_TYPE(NODE) \
|
|
|
537 GET_DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))
|
|
|
538 #define SET_DECL_PARALLEL_TYPE(NODE, X) \
|
|
|
539 SET_DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE), X)
|
|
|
540
|
|
|
541
|
|
|
542 /* Flags added to ref nodes. */
|
|
|
543
|
|
|
544 /* Nonzero means this node will not trap. */
|
|
|
545 #undef TREE_THIS_NOTRAP
|
|
|
546 #define TREE_THIS_NOTRAP(NODE) \
|
|
|
547 (TREE_CHECK4 (NODE, INDIRECT_REF, ARRAY_REF, UNCONSTRAINED_ARRAY_REF, \
|
|
|
548 ARRAY_RANGE_REF)->base.nothrow_flag)
|
|
|
549
|
|
|
550
|
|
|
551 /* Fields and macros for statements. */
|
|
|
552 #define IS_ADA_STMT(NODE) \
|
|
|
553 (STATEMENT_CLASS_P (NODE) && TREE_CODE (NODE) >= STMT_STMT)
|
|
|
554
|
|
|
555 #define STMT_STMT_STMT(NODE) TREE_OPERAND_CHECK_CODE (NODE, STMT_STMT, 0)
|
|
|
556
|
|
|
557 #define LOOP_STMT_COND(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 0)
|
|
|
558 #define LOOP_STMT_UPDATE(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 1)
|
|
|
559 #define LOOP_STMT_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 2)
|
|
|
560 #define LOOP_STMT_LABEL(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 3)
|
|
|
561
|
|
|
562 /* A loop statement is conceptually made up of 6 sub-statements:
|
|
|
563
|
|
|
564 loop:
|
|
|
565 TOP_CONDITION
|
|
|
566 TOP_UPDATE
|
|
|
567 BODY
|
|
|
568 BOTTOM_CONDITION
|
|
|
569 BOTTOM_UPDATE
|
|
|
570 GOTO loop
|
|
|
571
|
|
|
572 However, only 4 of them can exist for a given loop, the pair of conditions
|
|
|
573 and the pair of updates being mutually exclusive. The default setting is
|
|
|
574 TOP_CONDITION and BOTTOM_UPDATE and the following couple of flags are used
|
|
|
575 to toggle the individual settings. */
|
|
|
576 #define LOOP_STMT_BOTTOM_COND_P(NODE) TREE_LANG_FLAG_0 (LOOP_STMT_CHECK (NODE))
|
|
|
577 #define LOOP_STMT_TOP_UPDATE_P(NODE) TREE_LANG_FLAG_1 (LOOP_STMT_CHECK (NODE))
|
|
|
578
|
|
|
579 /* Optimization hints on loops. */
|
|
|
580 #define LOOP_STMT_IVDEP(NODE) TREE_LANG_FLAG_2 (LOOP_STMT_CHECK (NODE))
|
|
|
581 #define LOOP_STMT_NO_UNROLL(NODE) TREE_LANG_FLAG_3 (LOOP_STMT_CHECK (NODE))
|
|
|
582 #define LOOP_STMT_UNROLL(NODE) TREE_LANG_FLAG_4 (LOOP_STMT_CHECK (NODE))
|
|
|
583 #define LOOP_STMT_NO_VECTOR(NODE) TREE_LANG_FLAG_5 (LOOP_STMT_CHECK (NODE))
|
|
|
584 #define LOOP_STMT_VECTOR(NODE) TREE_LANG_FLAG_6 (LOOP_STMT_CHECK (NODE))
|
|
|
585
|
|
|
586 #define EXIT_STMT_COND(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_STMT, 0)
|
|
|
587 #define EXIT_STMT_LABEL(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_STMT, 1)
|
|
145
|
588
|
|
|
589 /* Small kludge to be able to define Ada built-in functions locally.
|
|
|
590 We overload them on top of the HSAIL/BRIG builtin functions. */
|
|
|
591 #define BUILT_IN_LIKELY BUILT_IN_HSAIL_WORKITEMABSID
|
|
|
592 #define BUILT_IN_UNLIKELY BUILT_IN_HSAIL_GRIDSIZE
|
