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111
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1 /* Header for code translation functions
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145
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2 Copyright (C) 2002-2020 Free Software Foundation, Inc.
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111
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3 Contributed by Paul Brook
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #ifndef GFC_TRANS_H
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22 #define GFC_TRANS_H
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23
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24 #include "predict.h" /* For enum br_predictor and PRED_*. */
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25
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145
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26 /* Mangled symbols take the form __module__name or __module.submodule__name. */
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27 #define GFC_MAX_MANGLED_SYMBOL_LEN (GFC_MAX_SYMBOL_LEN*3+5)
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111
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28
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29 /* Struct for holding a block of statements. It should be treated as an
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30 opaque entity and not modified directly. This allows us to change the
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31 underlying representation of statement lists. */
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32 typedef struct
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33 {
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34 tree head;
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35 unsigned int has_scope:1;
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36 }
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37 stmtblock_t;
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38
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39 /* a simplified expression */
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40 typedef struct gfc_se
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41 {
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42 /* Code blocks to be executed before and after using the value. */
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43 stmtblock_t pre;
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44 stmtblock_t post;
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45
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46 /* the result of the expression */
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47 tree expr;
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48
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49 /* The length of a character string value. */
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50 tree string_length;
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51
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52 /* When expr is a reference to a class object, store its vptr access
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53 here. */
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54 tree class_vptr;
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55
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56 /* If set gfc_conv_variable will return an expression for the array
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57 descriptor. When set, want_pointer should also be set.
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58 If not set scalarizing variables will be substituted. */
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59 unsigned descriptor_only:1;
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60
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61 /* When this is set gfc_conv_expr returns the address of a variable. Only
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62 applies to EXPR_VARIABLE nodes.
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63 Also used by gfc_conv_array_parameter. When set this indicates a pointer
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64 to the descriptor should be returned, rather than the descriptor itself.
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65 */
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66 unsigned want_pointer:1;
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67
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68 /* An array function call returning without a temporary. Also used for array
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69 pointer assignments. */
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70 unsigned direct_byref:1;
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71
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72 /* If direct_byref is set, do work out the descriptor as in that case but
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73 do still create a new descriptor variable instead of using an
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74 existing one. This is useful for special pointer assignments like
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75 rank remapping where we have to process the descriptor before
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76 assigning to final one. */
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77 unsigned byref_noassign:1;
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78
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79 /* Ignore absent optional arguments. Used for some intrinsics. */
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80 unsigned ignore_optional:1;
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81
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82 /* When this is set the data and offset fields of the returned descriptor
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83 are NULL. Used by intrinsic size. */
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84 unsigned data_not_needed:1;
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85
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86 /* If set, gfc_conv_procedure_call does not put byref calls into se->pre. */
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87 unsigned no_function_call:1;
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88
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89 /* If set, we will force the creation of a temporary. Useful to disable
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90 non-copying procedure argument passing optimizations, when some function
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91 args alias. */
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92 unsigned force_tmp:1;
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93
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145
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94 /* If set, will pass subref descriptors without a temporary. */
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95 unsigned force_no_tmp:1;
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96
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111
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97 /* Unconditionally calculate offset for array segments and constant
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98 arrays in gfc_conv_expr_descriptor. */
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99 unsigned use_offset:1;
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100
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101 unsigned want_coarray:1;
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102
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103 /* Scalarization parameters. */
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104 struct gfc_se *parent;
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105 struct gfc_ss *ss;
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106 struct gfc_loopinfo *loop;
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107 }
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108 gfc_se;
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109
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145
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110 typedef struct gfc_co_subroutines_args
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111 {
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112 tree image_index;
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113 tree stat;
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114 tree errmsg;
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115 tree errmsg_len;
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116 }
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117 gfc_co_subroutines_args;
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111
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118
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119 /* Denotes different types of coarray.
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120 Please keep in sync with libgfortran/caf/libcaf.h. */
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121 enum gfc_coarray_regtype
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122 {
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123 GFC_CAF_COARRAY_STATIC,
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124 GFC_CAF_COARRAY_ALLOC,
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125 GFC_CAF_LOCK_STATIC,
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126 GFC_CAF_LOCK_ALLOC,
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127 GFC_CAF_CRITICAL,
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128 GFC_CAF_EVENT_STATIC,
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129 GFC_CAF_EVENT_ALLOC,
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130 GFC_CAF_COARRAY_ALLOC_REGISTER_ONLY,
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131 GFC_CAF_COARRAY_ALLOC_ALLOCATE_ONLY
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132 };
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133
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134
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135 /* Describes the action to take on _caf_deregister. Keep in sync with
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136 gcc/fortran/trans.h. The negative values are not valid for the library and
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137 are used by the drivers for building the correct call. */
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138 enum gfc_coarray_deregtype {
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139 /* This is no coarray, i.e. build a call to a free (). */
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140 GFC_CAF_COARRAY_NOCOARRAY = -2,
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141 /* The driver is to analyze which _caf_deregister ()-call to generate. */
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142 GFC_CAF_COARRAY_ANALYZE = -1,
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143 GFC_CAF_COARRAY_DEREGISTER = 0,
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144 GFC_CAF_COARRAY_DEALLOCATE_ONLY
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145 };
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146
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147
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148 /* Specify the type of ref handed to the caf communication functions.
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149 Please keep in sync with libgfortran/caf/libcaf.h. */
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150 enum gfc_caf_ref_type_t {
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151 GFC_CAF_REF_COMPONENT,
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152 GFC_CAF_REF_ARRAY,
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153 GFC_CAF_REF_STATIC_ARRAY
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154 };
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155
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156
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157 /* Give the reference type of an array ref.
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158 Please keep in sync with libgfortran/caf/libcaf.h. */
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159 enum gfc_caf_array_ref_t {
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160 GFC_CAF_ARR_REF_NONE = 0,
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161 GFC_CAF_ARR_REF_VECTOR,
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162 GFC_CAF_ARR_REF_FULL,
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163 GFC_CAF_ARR_REF_RANGE,
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164 GFC_CAF_ARR_REF_SINGLE,
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165 GFC_CAF_ARR_REF_OPEN_END,
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166 GFC_CAF_ARR_REF_OPEN_START
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167 };
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168
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169
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170 /* trans-array (structure_alloc_comps) caf_mode bits. */
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171 enum gfc_structure_caf_mode_t {
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172 GFC_STRUCTURE_CAF_MODE_ENABLE_COARRAY = 1 << 0,
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173 GFC_STRUCTURE_CAF_MODE_IN_COARRAY = 1 << 1,
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174 GFC_STRUCTURE_CAF_MODE_DEALLOC_ONLY = 1 << 2
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175 };
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176
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177
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178 /* The array-specific scalarization information. The array members of
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179 this struct are indexed by actual array index, and thus can be sparse. */
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180
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181 typedef struct gfc_array_info
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182 {
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183 mpz_t *shape;
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184
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185 /* The ref that holds information on this section. */
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186 gfc_ref *ref;
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187 /* The descriptor of this array. */
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188 tree descriptor;
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189 /* holds the pointer to the data array. */
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190 tree data;
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191 /* To move some of the array index calculation out of the innermost loop. */
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192 tree offset;
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193 tree saved_offset;
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194 tree stride0;
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195 /* Holds the SS for a subscript. Indexed by actual dimension. */
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196 struct gfc_ss *subscript[GFC_MAX_DIMENSIONS];
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197
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198 /* stride and delta are used to access this inside a scalarization loop.
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199 start is used in the calculation of these. Indexed by scalarizer
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200 dimension. */
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201 tree start[GFC_MAX_DIMENSIONS];
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202 tree end[GFC_MAX_DIMENSIONS];
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203 tree stride[GFC_MAX_DIMENSIONS];
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204 tree delta[GFC_MAX_DIMENSIONS];
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205 }
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206 gfc_array_info;
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207
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208 enum gfc_ss_type
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209 {
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210 /* A scalar value. This will be evaluated before entering the
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211 scalarization loop. */
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212 GFC_SS_SCALAR,
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213
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214 /* Like GFC_SS_SCALAR it evaluates the expression outside the
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215 loop. Is always evaluated as a reference to the temporary, unless
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216 temporary evaluation can result in a NULL pointer dereferencing (case of
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217 optional arguments). Used for elemental function arguments. */
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218 GFC_SS_REFERENCE,
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219
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220 /* An array section. Scalarization indices will be substituted during
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221 expression translation. */
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222 GFC_SS_SECTION,
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223
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224 /* A non-elemental function call returning an array. The call is executed
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225 before entering the scalarization loop, storing the result in a
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226 temporary. This temporary is then used inside the scalarization loop.
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227 Simple assignments, e.g. a(:) = fn(), are handled without a temporary
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228 as a special case. */
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229 GFC_SS_FUNCTION,
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230
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231 /* An array constructor. The current implementation is sub-optimal in
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232 many cases. It allocated a temporary, assigns the values to it, then
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233 uses this temporary inside the scalarization loop. */
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234 GFC_SS_CONSTRUCTOR,
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235
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236 /* A vector subscript. The vector's descriptor is cached in the
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237 "descriptor" field of the associated gfc_ss_info. */
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238 GFC_SS_VECTOR,
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239
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240 /* A temporary array allocated by the scalarizer. Its rank can be less
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241 than that of the assignment expression. */
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242 GFC_SS_TEMP,
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243
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244 /* An intrinsic function call. Many intrinsic functions which map directly
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245 to library calls are created as GFC_SS_FUNCTION nodes. */
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246 GFC_SS_INTRINSIC,
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247
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248 /* A component of a derived type. */
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249 GFC_SS_COMPONENT
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250 };
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251
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252
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253 typedef struct gfc_ss_info
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254 {
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255 int refcount;
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256 gfc_ss_type type;
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257 gfc_expr *expr;
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258 tree string_length;
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259
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260 union
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261 {
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262 /* If type is GFC_SS_SCALAR or GFC_SS_REFERENCE. */
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263 struct
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264 {
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265 /* If the scalar is passed as actual argument to an (elemental) procedure,
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266 this is the symbol of the corresponding dummy argument. */
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267 gfc_symbol *dummy_arg;
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268 tree value;
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269 /* Tells that the scalar is a reference to a variable that might
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270 be present on the lhs, so that we should evaluate the value
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271 itself before the loop, not just the reference. */
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272 unsigned needs_temporary:1;
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273 }
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274 scalar;
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275
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276 /* GFC_SS_TEMP. */
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277 struct
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278 {
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279 tree type;
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280 }
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281 temp;
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282
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283 /* All other types. */
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284 gfc_array_info array;
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285 }
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286 data;
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287
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288 /* This is used by assignments requiring temporaries. The bits specify which
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289 loops the terms appear in. This will be 1 for the RHS expressions,
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290 2 for the LHS expressions, and 3(=1|2) for the temporary. */
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291 unsigned useflags:2;
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292
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293 /* Suppresses precalculation of scalars in WHERE assignments. */
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294 unsigned where:1;
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295
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296 /* This set for an elemental function that contains expressions for
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297 external arrays, thereby triggering creation of a temporary. */
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298 unsigned array_outer_dependency:1;
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299
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300 /* Tells whether the SS is for an actual argument which can be a NULL
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301 reference. In other words, the associated dummy argument is OPTIONAL.
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302 Used to handle elemental procedures. */
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303 bool can_be_null_ref;
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304 }
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305 gfc_ss_info;
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306
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307 #define gfc_get_ss_info() XCNEW (gfc_ss_info)
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308
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309
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310 /* Scalarization State chain. Created by walking an expression tree before
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311 creating the scalarization loops. Then passed as part of a gfc_se structure
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312 to translate the expression inside the loop. Note that these chains are
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313 terminated by gfc_ss_terminator, not NULL. A NULL pointer in a gfc_se
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314 indicates to gfc_conv_* that this is a scalar expression.
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315 SS structures can only belong to a single loopinfo. They must be added
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316 otherwise they will not get freed. */
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317
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318 typedef struct gfc_ss
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319 {
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320 gfc_ss_info *info;
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321
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322 int dimen;
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323 /* Translation from loop dimensions to actual array dimensions.
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324 actual_dim = dim[loop_dim] */
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325 int dim[GFC_MAX_DIMENSIONS];
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326
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327 /* All the SS in a loop and linked through loop_chain. The SS for an
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328 expression are linked by the next pointer. */
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329 struct gfc_ss *loop_chain;
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330 struct gfc_ss *next;
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331
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332 /* Non-null if the ss is part of a nested loop. */
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333 struct gfc_ss *parent;
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334
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335 /* If the evaluation of an expression requires a nested loop (for example
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336 if the sum intrinsic is evaluated inline), this points to the nested
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337 loop's gfc_ss. */
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338 struct gfc_ss *nested_ss;
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339
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340 /* The loop this gfc_ss is in. */
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341 struct gfc_loopinfo *loop;
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342
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343 unsigned is_alloc_lhs:1;
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131
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344 unsigned no_bounds_check:1;
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111
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345 }
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346 gfc_ss;
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347 #define gfc_get_ss() XCNEW (gfc_ss)
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348
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349 /* The contents of this aren't actually used. A NULL SS chain indicates a
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350 scalar expression, so this pointer is used to terminate SS chains. */
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351 extern gfc_ss * const gfc_ss_terminator;
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352
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353 /* Holds information about an expression while it is being scalarized. */
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354 typedef struct gfc_loopinfo
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355 {
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356 stmtblock_t pre;
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357 stmtblock_t post;
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358
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359 int dimen;
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360
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361 /* All the SS involved with this loop. */
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362 gfc_ss *ss;
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363 /* The SS describing the temporary used in an assignment. */
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364 gfc_ss *temp_ss;
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365
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366 /* Non-null if this loop is nested in another one. */
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367 struct gfc_loopinfo *parent;
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368
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369 /* Chain of nested loops. */
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370 struct gfc_loopinfo *nested, *next;
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371
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372 /* The scalarization loop index variables. */
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373 tree loopvar[GFC_MAX_DIMENSIONS];
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374
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375 /* The bounds of the scalarization loops. */
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376 tree from[GFC_MAX_DIMENSIONS];
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377 tree to[GFC_MAX_DIMENSIONS];
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378 gfc_ss *specloop[GFC_MAX_DIMENSIONS];
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379
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380 /* The code member contains the code for the body of the next outer loop. */
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381 stmtblock_t code[GFC_MAX_DIMENSIONS];
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382
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383 /* Order in which the dimensions should be looped, innermost first. */
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384 int order[GFC_MAX_DIMENSIONS];
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385
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386 /* Enum to control loop reversal. */
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387 gfc_reverse reverse[GFC_MAX_DIMENSIONS];
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388
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389 /* The number of dimensions for which a temporary is used. */
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390 int temp_dim;
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391
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392 /* If set we don't need the loop variables. */
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393 unsigned array_parameter:1;
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394 }
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395 gfc_loopinfo;
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396
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397 #define gfc_get_loopinfo() XCNEW (gfc_loopinfo)
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398
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399 /* Information about a symbol that has been shadowed by a temporary. */
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400 typedef struct
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401 {
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402 symbol_attribute attr;
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403 tree decl;
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404 }
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405 gfc_saved_var;
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406
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407
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408 /* Store information about a block of code together with special
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409 initialization and clean-up code. This can be used to incrementally add
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|
|
410 init and cleanup, and in the end put everything together to a
|
|
|
411 try-finally expression. */
|
|
|
412 typedef struct
|
|
|
413 {
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|
|
414 tree init;
|
|
|
415 tree cleanup;
|
|
|
416 tree code;
|
|
|
417 }
|
|
|
418 gfc_wrapped_block;
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|
419
|
|
|
420 /* Class API functions. */
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|
|
421 tree gfc_class_set_static_fields (tree, tree, tree);
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|
|
422 tree gfc_class_data_get (tree);
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|
|
423 tree gfc_class_vptr_get (tree);
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|
424 tree gfc_class_len_get (tree);
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|
425 tree gfc_class_len_or_zero_get (tree);
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|
145
|
426 gfc_expr * gfc_find_and_cut_at_last_class_ref (gfc_expr *, bool is_mold = false);
|
|
111
|
427 /* Get an accessor to the class' vtab's * field, when a class handle is
|
|
|
428 available. */
|
|
|
429 tree gfc_class_vtab_hash_get (tree);
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|
430 tree gfc_class_vtab_size_get (tree);
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|
431 tree gfc_class_vtab_extends_get (tree);
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|
432 tree gfc_class_vtab_def_init_get (tree);
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|
433 tree gfc_class_vtab_copy_get (tree);
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|
434 tree gfc_class_vtab_final_get (tree);
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|
435 /* Get an accessor to the vtab's * field, when a vptr handle is present. */
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|
436 tree gfc_vtpr_hash_get (tree);
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437 tree gfc_vptr_size_get (tree);
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|
438 tree gfc_vptr_extends_get (tree);
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|
|
439 tree gfc_vptr_def_init_get (tree);
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|
440 tree gfc_vptr_copy_get (tree);
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|
441 tree gfc_vptr_final_get (tree);
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|
442 tree gfc_vptr_deallocate_get (tree);
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443 void gfc_reset_vptr (stmtblock_t *, gfc_expr *);
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444 void gfc_reset_len (stmtblock_t *, gfc_expr *);
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145
|
445 tree gfc_get_class_from_expr (tree);
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111
|
446 tree gfc_get_vptr_from_expr (tree);
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131
|
447 tree gfc_get_class_array_ref (tree, tree, tree, bool);
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111
|
448 tree gfc_copy_class_to_class (tree, tree, tree, bool);
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|
449 bool gfc_add_finalizer_call (stmtblock_t *, gfc_expr *);
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|
|
450 bool gfc_add_comp_finalizer_call (stmtblock_t *, tree, gfc_component *, bool);
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451
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|
|
452 void gfc_conv_derived_to_class (gfc_se *, gfc_expr *, gfc_typespec, tree, bool,
|
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|
453 bool);
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|
|
454 void gfc_conv_class_to_class (gfc_se *, gfc_expr *, gfc_typespec, bool, bool,
|
|
|
455 bool, bool);
|
|
|
456
|
|
|
457 /* Initialize an init/cleanup block. */
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|
|
458 void gfc_start_wrapped_block (gfc_wrapped_block* block, tree code);
|
|
|
459 /* Add a pair of init/cleanup code to the block. Each one might be a
|
|
|
460 NULL_TREE if not required. */
|
|
|
461 void gfc_add_init_cleanup (gfc_wrapped_block* block, tree init, tree cleanup);
|
|
|
462 /* Finalize the block, that is, create a single expression encapsulating the
|
|
|
463 original code together with init and clean-up code. */
|
|
|
464 tree gfc_finish_wrapped_block (gfc_wrapped_block* block);
|
|
|
465
|
|
|
466
|
|
|
467 /* Advance the SS chain to the next term. */
|
|
|
468 void gfc_advance_se_ss_chain (gfc_se *);
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|
|
469
|
|
|
470 /* Call this to initialize a gfc_se structure before use
|
|
|
471 first parameter is structure to initialize, second is
|
|
|
472 parent to get scalarization data from, or NULL. */
|
|
|
473 void gfc_init_se (gfc_se *, gfc_se *);
|
|
|
474
|
|
|
475 /* Create an artificial variable decl and add it to the current scope. */
|
|
|
476 tree gfc_create_var (tree, const char *);
|
|
|
477 /* Like above but doesn't add it to the current scope. */
|
|
|
478 tree gfc_create_var_np (tree, const char *);
|
|
|
479
|
|
|
480 /* Store the result of an expression in a temp variable so it can be used
|
|
|
481 repeatedly even if the original changes */
|
|
|
482 void gfc_make_safe_expr (gfc_se * se);
|
|
|
483
|
|
|
484 /* Makes sure se is suitable for passing as a function string parameter. */
|
|
|
485 void gfc_conv_string_parameter (gfc_se * se);
|
|
|
486
|
|
|
487 /* Compare two strings. */
|
|
|
488 tree gfc_build_compare_string (tree, tree, tree, tree, int, enum tree_code);
|
|
|
489
|
|
|
490 /* When using the gfc_conv_* make sure you understand what they do, i.e.
|
|
|
491 when a POST chain may be created, and what the returned expression may be
|
|
|
492 used for. Note that character strings have special handling. This
|
|
|
493 should not be a problem as most statements/operations only deal with
|
|
|
494 numeric/logical types. See the implementations in trans-expr.c
|
|
|
495 for details of the individual functions. */
|
|
|
496
|
|
|
497 void gfc_conv_expr (gfc_se * se, gfc_expr * expr);
|
|
|
498 void gfc_conv_expr_val (gfc_se * se, gfc_expr * expr);
|
|
|
499 void gfc_conv_expr_lhs (gfc_se * se, gfc_expr * expr);
|
|
131
|
500 void gfc_conv_expr_reference (gfc_se * se, gfc_expr * expr,
|
|
|
501 bool add_clobber = false);
|
|
111
|
502 void gfc_conv_expr_type (gfc_se * se, gfc_expr *, tree);
|
|
|
503
|
|
|
504
|
|
|
505 /* trans-expr.c */
|
|
|
506 tree gfc_conv_scalar_to_descriptor (gfc_se *, tree, symbol_attribute);
|
|
|
507 tree gfc_get_ultimate_alloc_ptr_comps_caf_token (gfc_se *, gfc_expr *);
|
|
|
508 void gfc_conv_scalar_char_value (gfc_symbol *sym, gfc_se *se, gfc_expr **expr);
|
|
|
509 tree gfc_string_to_single_character (tree len, tree str, int kind);
|
|
|
510 tree gfc_get_tree_for_caf_expr (gfc_expr *);
|
|
|
511 void gfc_get_caf_token_offset (gfc_se*, tree *, tree *, tree, tree, gfc_expr *);
|
|
|
512 tree gfc_caf_get_image_index (stmtblock_t *, gfc_expr *, tree);
|
|
|
513
|
|
|
514 /* Find the decl containing the auxiliary variables for assigned variables. */
|
|
|
515 void gfc_conv_label_variable (gfc_se * se, gfc_expr * expr);
|
|
|
516 /* If the value is not constant, Create a temporary and copy the value. */
|
|
|
517 tree gfc_evaluate_now_loc (location_t, tree, stmtblock_t *);
|
|
|
518 tree gfc_evaluate_now (tree, stmtblock_t *);
|
|
145
|
519 tree gfc_evaluate_now_function_scope (tree, stmtblock_t *);
|
|
111
|
520
|
|
|
521 /* Find the appropriate variant of a math intrinsic. */
|
|
|
522 tree gfc_builtin_decl_for_float_kind (enum built_in_function, int);
|
|
|
523
|
|
|
524 tree size_of_string_in_bytes (int, tree);
|
|
|
525
|
|
|
526 /* Intrinsic procedure handling. */
|
|
|
527 tree gfc_conv_intrinsic_subroutine (gfc_code *);
|
|
|
528 void gfc_conv_intrinsic_function (gfc_se *, gfc_expr *);
|
|
|
529 bool gfc_conv_ieee_arithmetic_function (gfc_se *, gfc_expr *);
|
|
|
530 tree gfc_save_fp_state (stmtblock_t *);
|
|
|
531 void gfc_restore_fp_state (stmtblock_t *, tree);
|
|
|
532
|
|
|
533 bool gfc_expr_is_variable (gfc_expr *);
|
|
|
534
|
|
|
535 /* Does an intrinsic map directly to an external library call
|
|
|
536 This is true for array-returning intrinsics, unless
|
|
|
537 gfc_inline_intrinsic_function_p returns true. */
|
|
|
538 int gfc_is_intrinsic_libcall (gfc_expr *);
|
|
|
539
|
|
|
540 /* Used to call ordinary functions/subroutines
|
|
|
541 and procedure pointer components. */
|
|
|
542 int gfc_conv_procedure_call (gfc_se *, gfc_symbol *, gfc_actual_arglist *,
|
|
|
543 gfc_expr *, vec<tree, va_gc> *);
|
|
|
544
|
|
145
|
545 void gfc_conv_subref_array_arg (gfc_se *, gfc_expr *, int, sym_intent, bool,
|
|
|
546 const gfc_symbol *fsym = NULL,
|
|
|
547 const char *proc_name = NULL,
|
|
|
548 gfc_symbol *sym = NULL,
|
|
|
549 bool check_contiguous = false);
|
|
|
550
|
|
|
551 void gfc_conv_is_contiguous_expr (gfc_se *, gfc_expr *);
|
|
111
|
552
|
|
|
553 /* Generate code for a scalar assignment. */
|
|
|
554 tree gfc_trans_scalar_assign (gfc_se *, gfc_se *, gfc_typespec, bool, bool,
|
|
|
555 bool c = false);
|
|
|
556
|
|
|
557 /* Translate COMMON blocks. */
|
|
|
558 void gfc_trans_common (gfc_namespace *);
|
|
|
559
|
|
|
560 /* Translate a derived type constructor. */
|
|
|
561 void gfc_conv_structure (gfc_se *, gfc_expr *, int);
|
|
|
562
|
|
|
563 /* Return an expression which determines if a dummy parameter is present. */
|
|
|
564 tree gfc_conv_expr_present (gfc_symbol *);
|
|
|
565 /* Convert a missing, dummy argument into a null or zero. */
|
|
|
566 void gfc_conv_missing_dummy (gfc_se *, gfc_expr *, gfc_typespec, int);
|
|
|
567
|
|
145
|
568 /* Lowering of component references. */
|
|
|
569 void gfc_conv_component_ref (gfc_se * se, gfc_ref * ref);
|
|
|
570 void conv_parent_component_references (gfc_se * se, gfc_ref * ref);
|
|
|
571
|
|
|
572 /* Automatically dereference var. */
|
|
|
573 tree gfc_maybe_dereference_var (gfc_symbol *, tree, bool desc_only = false,
|
|
|
574 bool is_classarray = false);
|
|
|
575
|
|
111
|
576 /* Generate code to allocate a string temporary. */
|
|
|
577 tree gfc_conv_string_tmp (gfc_se *, tree, tree);
|
|
|
578 /* Get the string length variable belonging to an expression. */
|
|
|
579 tree gfc_get_expr_charlen (gfc_expr *);
|
|
|
580 /* Initialize a string length variable. */
|
|
|
581 void gfc_conv_string_length (gfc_charlen *, gfc_expr *, stmtblock_t *);
|
|
|
582 /* Ensure type sizes can be gimplified. */
|
|
|
583 void gfc_trans_vla_type_sizes (gfc_symbol *, stmtblock_t *);
|
|
|
584
|
|
|
585 /* Add an expression to the end of a block. */
|
|
|
586 void gfc_add_expr_to_block (stmtblock_t *, tree);
|
|
|
587 /* Add an expression to the beginning of a block. */
|
|
|
588 void gfc_prepend_expr_to_block (stmtblock_t *, tree);
|
|
|
589 /* Add a block to the end of a block. */
|
|
|
590 void gfc_add_block_to_block (stmtblock_t *, stmtblock_t *);
|
|
|
591 /* Add a MODIFY_EXPR to a block. */
|
|
|
592 void gfc_add_modify_loc (location_t, stmtblock_t *, tree, tree);
|
|
|
593 void gfc_add_modify (stmtblock_t *, tree, tree);
|
|
|
594
|
|
|
595 /* Initialize a statement block. */
|
|
|
596 void gfc_init_block (stmtblock_t *);
|
|
|
597 /* Start a new statement block. Like gfc_init_block but also starts a new
|
|
|
598 variable scope. */
|
|
|
599 void gfc_start_block (stmtblock_t *);
|
|
|
600 /* Finish a statement block. Also closes the scope if the block was created
|
|
|
601 with gfc_start_block. */
|
|
|
602 tree gfc_finish_block (stmtblock_t *);
|
|
|
603 /* Merge the scope of a block with its parent. */
|
|
|
604 void gfc_merge_block_scope (stmtblock_t * block);
|
|
|
605
|
|
|
606 /* Return the backend label decl. */
|
|
|
607 tree gfc_get_label_decl (gfc_st_label *);
|
|
|
608
|
|
|
609 /* Return the decl for an external function. */
|
|
145
|
610 tree gfc_get_extern_function_decl (gfc_symbol *,
|
|
|
611 gfc_actual_arglist *args = NULL);
|
|
111
|
612
|
|
|
613 /* Return the decl for a function. */
|
|
|
614 tree gfc_get_function_decl (gfc_symbol *);
|
|
|
615
|
|
|
616 /* Build an ADDR_EXPR. */
|
|
|
617 tree gfc_build_addr_expr (tree, tree);
|
|
|
618
|
|
|
619 /* Build an ARRAY_REF. */
|
|
|
620 tree gfc_build_array_ref (tree, tree, tree, tree vptr = NULL_TREE);
|
|
|
621
|
|
|
622 /* Creates a label. Decl is artificial if label_id == NULL_TREE. */
|
|
|
623 tree gfc_build_label_decl (tree);
|
|
|
624
|
|
|
625 /* Return the decl used to hold the function return value.
|
|
|
626 Do not use if the function has an explicit result variable. */
|
|
|
627 tree gfc_get_fake_result_decl (gfc_symbol *, int);
|
|
|
628
|
|
|
629 /* Add a decl to the binding level for the current function. */
|
|
|
630 void gfc_add_decl_to_function (tree);
|
|
|
631
|
|
|
632 /* Make prototypes for runtime library functions. */
|
|
|
633 void gfc_build_builtin_function_decls (void);
|
|
|
634
|
|
|
635 /* Set the backend source location of a decl. */
|
|
|
636 void gfc_set_decl_location (tree, locus *);
|
|
|
637
|
|
|
638 /* Get a module symbol backend_decl if possible. */
|
|
|
639 bool gfc_get_module_backend_decl (gfc_symbol *);
|
|
|
640
|
|
|
641 /* Return the variable decl for a symbol. */
|
|
|
642 tree gfc_get_symbol_decl (gfc_symbol *);
|
|
|
643
|
|
|
644 /* Build a static initializer. */
|
|
|
645 tree gfc_conv_initializer (gfc_expr *, gfc_typespec *, tree, bool, bool, bool);
|
|
|
646
|
|
|
647 /* Assign a default initializer to a derived type. */
|
|
|
648 void gfc_init_default_dt (gfc_symbol *, stmtblock_t *, bool);
|
|
|
649
|
|
|
650 /* Substitute a temporary variable in place of the real one. */
|
|
|
651 void gfc_shadow_sym (gfc_symbol *, tree, gfc_saved_var *);
|
|
|
652
|
|
|
653 /* Restore the original variable. */
|
|
|
654 void gfc_restore_sym (gfc_symbol *, gfc_saved_var *);
|
|
|
655
|
|
|
656 /* Setting a decl assembler name, mangling it according to target rules
|
|
|
657 (like Windows @NN decorations). */
|
|
|
658 void gfc_set_decl_assembler_name (tree, tree);
|
|
|
659
|
|
|
660 /* Returns true if a variable of specified size should go on the stack. */
|
|
|
661 int gfc_can_put_var_on_stack (tree);
|
|
|
662
|
|
|
663 /* Set GFC_DECL_SCALAR_* on decl from sym if needed. */
|
|
|
664 void gfc_finish_decl_attrs (tree, symbol_attribute *);
|
|
|
665
|
|
|
666 /* Allocate the lang-specific part of a decl node. */
|
|
|
667 void gfc_allocate_lang_decl (tree);
|
|
|
668
|
|
145
|
669 /* Get the location suitable for the ME from a gfortran locus; required to get
|
|
|
670 the column number right. */
|
|
|
671 location_t gfc_get_location (locus *);
|
|
|
672
|
|
111
|
673 /* Advance along a TREE_CHAIN. */
|
|
|
674 tree gfc_advance_chain (tree, int);
|
|
|
675
|
|
|
676 /* Create a decl for a function. */
|
|
|
677 void gfc_create_function_decl (gfc_namespace *, bool);
|
|
|
678 /* Generate the code for a function. */
|
|
|
679 void gfc_generate_function_code (gfc_namespace *);
|
|
|
680 /* Output a BLOCK DATA program unit. */
|
|
|
681 void gfc_generate_block_data (gfc_namespace *);
|
|
|
682 /* Output a decl for a module variable. */
|
|
|
683 void gfc_generate_module_vars (gfc_namespace *);
|
|
|
684 /* Get the appropriate return statement for a procedure. */
|
|
|
685 tree gfc_generate_return (void);
|
|
|
686
|
|
|
687 struct module_decl_hasher : ggc_ptr_hash<tree_node>
|
|
|
688 {
|
|
|
689 typedef const char *compare_type;
|
|
|
690
|
|
|
691 static hashval_t hash (tree);
|
|
|
692 static bool equal (tree, const char *);
|
|
|
693 };
|
|
|
694
|
|
|
695 struct GTY((for_user)) module_htab_entry {
|
|
|
696 const char *name;
|
|
|
697 tree namespace_decl;
|
|
|
698 hash_table<module_decl_hasher> *GTY (()) decls;
|
|
|
699 };
|
|
|
700
|
|
|
701 struct module_htab_entry *gfc_find_module (const char *);
|
|
|
702 void gfc_module_add_decl (struct module_htab_entry *, tree);
|
|
|
703
|
|
|
704 /* Get and set the current location. */
|
|
|
705 void gfc_save_backend_locus (locus *);
|
|
|
706 void gfc_set_backend_locus (locus *);
|
|
|
707 void gfc_restore_backend_locus (locus *);
|
|
|
708
|
|
|
709 /* Handle static constructor functions. */
|
|
|
710 extern GTY(()) tree gfc_static_ctors;
|
|
|
711 void gfc_generate_constructors (void);
|
|
|
712
|
|
|
713 /* Get the string length of an array constructor. */
|
|
|
714 bool get_array_ctor_strlen (stmtblock_t *, gfc_constructor_base, tree *);
|
|
|
715
|
|
|
716 /* Mark a condition as likely or unlikely. */
|
|
|
717 tree gfc_likely (tree, enum br_predictor);
|
|
|
718 tree gfc_unlikely (tree, enum br_predictor);
|
|
|
719
|
|
|
720 /* Return the string length of a deferred character length component. */
|
|
|
721 bool gfc_deferred_strlen (gfc_component *, tree *);
|
|
|
722
|
|
|
723 /* Generate a runtime error call. */
|
|
|
724 tree gfc_trans_runtime_error (bool, locus*, const char*, ...);
|
|
|
725
|
|
|
726 /* Generate a runtime warning/error check. */
|
|
|
727 void gfc_trans_runtime_check (bool, bool, tree, stmtblock_t *, locus *,
|
|
|
728 const char *, ...);
|
|
|
729
|
|
|
730 /* Generate a runtime check for same string length. */
|
|
|
731 void gfc_trans_same_strlen_check (const char*, locus*, tree, tree,
|
|
|
732 stmtblock_t*);
|
|
|
733
|
|
|
734 /* Generate a call to free(). */
|
|
|
735 tree gfc_call_free (tree);
|
|
|
736
|
|
|
737 /* Allocate memory after performing a few checks. */
|
|
|
738 tree gfc_call_malloc (stmtblock_t *, tree, tree);
|
|
|
739
|
|
|
740 /* Build a memcpy call. */
|
|
|
741 tree gfc_build_memcpy_call (tree, tree, tree);
|
|
|
742
|
|
|
743 /* Register memory with the coarray library. */
|
|
|
744 void gfc_allocate_using_caf_lib (stmtblock_t *, tree, tree, tree, tree, tree,
|
|
|
745 tree, gfc_coarray_regtype);
|
|
|
746
|
|
|
747 /* Allocate memory for allocatable variables, with optional status variable. */
|
|
|
748 void gfc_allocate_allocatable (stmtblock_t*, tree, tree, tree, tree,
|
|
|
749 tree, tree, tree, gfc_expr*, int);
|
|
|
750
|
|
|
751 /* Allocate memory, with optional status variable. */
|
|
|
752 void gfc_allocate_using_malloc (stmtblock_t *, tree, tree, tree);
|
|
|
753
|
|
|
754 /* Generate code to deallocate an array. */
|
|
|
755 tree gfc_deallocate_with_status (tree, tree, tree, tree, tree, bool,
|
|
|
756 gfc_expr *, int, tree a = NULL_TREE,
|
|
|
757 tree c = NULL_TREE);
|
|
|
758 tree gfc_deallocate_scalar_with_status (tree, tree, tree, bool, gfc_expr*,
|
|
|
759 gfc_typespec, bool c = false);
|
|
|
760
|
|
|
761 /* Generate code to call realloc(). */
|
|
|
762 tree gfc_call_realloc (stmtblock_t *, tree, tree);
|
|
|
763
|
|
|
764 /* Assign a derived type constructor to a variable. */
|
|
|
765 tree gfc_trans_structure_assign (tree, gfc_expr *, bool, bool c = false);
|
|
|
766
|
|
|
767 /* Generate code for an assignment, includes scalarization. */
|
|
|
768 tree gfc_trans_assignment (gfc_expr *, gfc_expr *, bool, bool, bool p = false,
|
|
|
769 bool a = true);
|
|
|
770
|
|
|
771 /* Generate code for a pointer assignment. */
|
|
|
772 tree gfc_trans_pointer_assignment (gfc_expr *, gfc_expr *);
|
|
|
773
|
|
|
774 /* Initialize function decls for library functions. */
|
|
|
775 void gfc_build_intrinsic_lib_fndecls (void);
|
|
|
776 /* Create function decls for IO library functions. */
|
|
|
777 void gfc_build_io_library_fndecls (void);
|
|
|
778 /* Build a function decl for a library function. */
|
|
|
779 tree gfc_build_library_function_decl (tree, tree, int, ...);
|
|
|
780 tree gfc_build_library_function_decl_with_spec (tree name, const char *spec,
|
|
|
781 tree rettype, int nargs, ...);
|
|
|
782
|
|
|
783 /* Process the local variable decls of a block construct. */
|
|
|
784 void gfc_process_block_locals (gfc_namespace*);
|
|
|
785
|
|
|
786 /* Output initialization/clean-up code that was deferred. */
|
|
|
787 void gfc_trans_deferred_vars (gfc_symbol*, gfc_wrapped_block *);
|
|
|
788
|
|
|
789 /* In f95-lang.c. */
|
|
|
790 tree pushdecl (tree);
|
|
|
791 tree pushdecl_top_level (tree);
|
|
|
792 void pushlevel (void);
|
|
|
793 tree poplevel (int, int);
|
|
|
794 tree getdecls (void);
|
|
|
795
|
|
|
796 /* In trans-types.c. */
|
|
|
797 struct array_descr_info;
|
|
|
798 bool gfc_get_array_descr_info (const_tree, struct array_descr_info *);
|
|
|
799
|
|
|
800 /* In trans-openmp.c */
|
|
145
|
801 bool gfc_omp_is_allocatable_or_ptr (const_tree);
|
|
|
802 tree gfc_omp_check_optional_argument (tree, bool);
|
|
|
803 tree gfc_omp_array_data (tree, bool);
|
|
111
|
804 bool gfc_omp_privatize_by_reference (const_tree);
|
|
|
805 enum omp_clause_default_kind gfc_omp_predetermined_sharing (tree);
|
|
|
806 tree gfc_omp_report_decl (tree);
|
|
|
807 tree gfc_omp_clause_default_ctor (tree, tree, tree);
|
|
|
808 tree gfc_omp_clause_copy_ctor (tree, tree, tree);
|
|
|
809 tree gfc_omp_clause_assign_op (tree, tree, tree);
|
|
|
810 tree gfc_omp_clause_linear_ctor (tree, tree, tree, tree);
|
|
|
811 tree gfc_omp_clause_dtor (tree, tree);
|
|
|
812 void gfc_omp_finish_clause (tree, gimple_seq *);
|
|
|
813 bool gfc_omp_scalar_p (tree);
|
|
|
814 bool gfc_omp_disregard_value_expr (tree, bool);
|
|
|
815 bool gfc_omp_private_debug_clause (tree, bool);
|
|
|
816 bool gfc_omp_private_outer_ref (tree);
|
|
|
817 struct gimplify_omp_ctx;
|
|
|
818 void gfc_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *, tree);
|
|
|
819
|
|
|
820 /* Runtime library function decls. */
|
|
|
821 extern GTY(()) tree gfor_fndecl_pause_numeric;
|
|
|
822 extern GTY(()) tree gfor_fndecl_pause_string;
|
|
|
823 extern GTY(()) tree gfor_fndecl_stop_numeric;
|
|
|
824 extern GTY(()) tree gfor_fndecl_stop_string;
|
|
|
825 extern GTY(()) tree gfor_fndecl_error_stop_numeric;
|
|
|
826 extern GTY(()) tree gfor_fndecl_error_stop_string;
|
|
|
827 extern GTY(()) tree gfor_fndecl_runtime_error;
|
|
|
828 extern GTY(()) tree gfor_fndecl_runtime_error_at;
|
|
|
829 extern GTY(()) tree gfor_fndecl_runtime_warning_at;
|
|
145
|
830 extern GTY(()) tree gfor_fndecl_os_error_at;
|
|
111
|
831 extern GTY(()) tree gfor_fndecl_generate_error;
|
|
|
832 extern GTY(()) tree gfor_fndecl_set_fpe;
|
|
|
833 extern GTY(()) tree gfor_fndecl_set_options;
|
|
|
834 extern GTY(()) tree gfor_fndecl_ttynam;
|
|
|
835 extern GTY(()) tree gfor_fndecl_ctime;
|
|
|
836 extern GTY(()) tree gfor_fndecl_fdate;
|
|
|
837 extern GTY(()) tree gfor_fndecl_in_pack;
|
|
|
838 extern GTY(()) tree gfor_fndecl_in_unpack;
|
|
145
|
839 extern GTY(()) tree gfor_fndecl_cfi_to_gfc;
|
|
|
840 extern GTY(()) tree gfor_fndecl_gfc_to_cfi;
|
|
111
|
841 extern GTY(()) tree gfor_fndecl_associated;
|
|
|
842 extern GTY(()) tree gfor_fndecl_system_clock4;
|
|
|
843 extern GTY(()) tree gfor_fndecl_system_clock8;
|
|
|
844
|
|
|
845
|
|
|
846 /* Coarray run-time library function decls. */
|
|
|
847 extern GTY(()) tree gfor_fndecl_caf_init;
|
|
|
848 extern GTY(()) tree gfor_fndecl_caf_finalize;
|
|
|
849 extern GTY(()) tree gfor_fndecl_caf_this_image;
|
|
|
850 extern GTY(()) tree gfor_fndecl_caf_num_images;
|
|
|
851 extern GTY(()) tree gfor_fndecl_caf_register;
|
|
|
852 extern GTY(()) tree gfor_fndecl_caf_deregister;
|
|
|
853 extern GTY(()) tree gfor_fndecl_caf_get;
|
|
|
854 extern GTY(()) tree gfor_fndecl_caf_send;
|
|
|
855 extern GTY(()) tree gfor_fndecl_caf_sendget;
|
|
|
856 extern GTY(()) tree gfor_fndecl_caf_get_by_ref;
|
|
|
857 extern GTY(()) tree gfor_fndecl_caf_send_by_ref;
|
|
|
858 extern GTY(()) tree gfor_fndecl_caf_sendget_by_ref;
|
|
|
859 extern GTY(()) tree gfor_fndecl_caf_sync_all;
|
|
|
860 extern GTY(()) tree gfor_fndecl_caf_sync_memory;
|
|
|
861 extern GTY(()) tree gfor_fndecl_caf_sync_images;
|
|
|
862 extern GTY(()) tree gfor_fndecl_caf_stop_numeric;
|
|
|
863 extern GTY(()) tree gfor_fndecl_caf_stop_str;
|
|
|
864 extern GTY(()) tree gfor_fndecl_caf_error_stop;
|
|
|
865 extern GTY(()) tree gfor_fndecl_caf_error_stop_str;
|
|
|
866 extern GTY(()) tree gfor_fndecl_caf_atomic_def;
|
|
|
867 extern GTY(()) tree gfor_fndecl_caf_atomic_ref;
|
|
|
868 extern GTY(()) tree gfor_fndecl_caf_atomic_cas;
|
|
|
869 extern GTY(()) tree gfor_fndecl_caf_atomic_op;
|
|
|
870 extern GTY(()) tree gfor_fndecl_caf_lock;
|
|
|
871 extern GTY(()) tree gfor_fndecl_caf_unlock;
|
|
|
872 extern GTY(()) tree gfor_fndecl_caf_event_post;
|
|
|
873 extern GTY(()) tree gfor_fndecl_caf_event_wait;
|
|
|
874 extern GTY(()) tree gfor_fndecl_caf_event_query;
|
|
|
875 extern GTY(()) tree gfor_fndecl_caf_fail_image;
|
|
|
876 extern GTY(()) tree gfor_fndecl_caf_failed_images;
|
|
|
877 extern GTY(()) tree gfor_fndecl_caf_image_status;
|
|
|
878 extern GTY(()) tree gfor_fndecl_caf_stopped_images;
|
|
131
|
879 extern GTY(()) tree gfor_fndecl_caf_form_team;
|
|
|
880 extern GTY(()) tree gfor_fndecl_caf_change_team;
|
|
|
881 extern GTY(()) tree gfor_fndecl_caf_end_team;
|
|
|
882 extern GTY(()) tree gfor_fndecl_caf_get_team;
|
|
|
883 extern GTY(()) tree gfor_fndecl_caf_sync_team;
|
|
|
884 extern GTY(()) tree gfor_fndecl_caf_team_number;
|
|
111
|
885 extern GTY(()) tree gfor_fndecl_co_broadcast;
|
|
|
886 extern GTY(()) tree gfor_fndecl_co_max;
|
|
|
887 extern GTY(()) tree gfor_fndecl_co_min;
|
|
|
888 extern GTY(()) tree gfor_fndecl_co_reduce;
|
|
|
889 extern GTY(()) tree gfor_fndecl_co_sum;
|
|
|
890 extern GTY(()) tree gfor_fndecl_caf_is_present;
|
|
|
891
|
|
|
892 /* Math functions. Many other math functions are handled in
|
|
|
893 trans-intrinsic.c. */
|
|
|
894
|
|
|
895 typedef struct GTY(()) gfc_powdecl_list {
|
|
|
896 tree integer;
|
|
|
897 tree real;
|
|
|
898 tree cmplx;
|
|
|
899 }
|
|
|
900 gfc_powdecl_list;
|
|
|
901
|
|
|
902 extern GTY(()) gfc_powdecl_list gfor_fndecl_math_powi[4][3];
|
|
|
903 extern GTY(()) tree gfor_fndecl_math_ishftc4;
|
|
|
904 extern GTY(()) tree gfor_fndecl_math_ishftc8;
|
|
|
905 extern GTY(()) tree gfor_fndecl_math_ishftc16;
|
|
|
906
|
|
|
907 /* BLAS functions. */
|
|
|
908 extern GTY(()) tree gfor_fndecl_sgemm;
|
|
|
909 extern GTY(()) tree gfor_fndecl_dgemm;
|
|
|
910 extern GTY(()) tree gfor_fndecl_cgemm;
|
|
|
911 extern GTY(()) tree gfor_fndecl_zgemm;
|
|
|
912
|
|
|
913 /* String functions. */
|
|
|
914 extern GTY(()) tree gfor_fndecl_compare_string;
|
|
|
915 extern GTY(()) tree gfor_fndecl_concat_string;
|
|
|
916 extern GTY(()) tree gfor_fndecl_string_len_trim;
|
|
|
917 extern GTY(()) tree gfor_fndecl_string_index;
|
|
|
918 extern GTY(()) tree gfor_fndecl_string_scan;
|
|
|
919 extern GTY(()) tree gfor_fndecl_string_verify;
|
|
|
920 extern GTY(()) tree gfor_fndecl_string_trim;
|
|
|
921 extern GTY(()) tree gfor_fndecl_string_minmax;
|
|
|
922 extern GTY(()) tree gfor_fndecl_adjustl;
|
|
|
923 extern GTY(()) tree gfor_fndecl_adjustr;
|
|
|
924 extern GTY(()) tree gfor_fndecl_select_string;
|
|
|
925 extern GTY(()) tree gfor_fndecl_compare_string_char4;
|
|
|
926 extern GTY(()) tree gfor_fndecl_concat_string_char4;
|
|
|
927 extern GTY(()) tree gfor_fndecl_string_len_trim_char4;
|
|
|
928 extern GTY(()) tree gfor_fndecl_string_index_char4;
|
|
|
929 extern GTY(()) tree gfor_fndecl_string_scan_char4;
|
|
|
930 extern GTY(()) tree gfor_fndecl_string_verify_char4;
|
|
|
931 extern GTY(()) tree gfor_fndecl_string_trim_char4;
|
|
|
932 extern GTY(()) tree gfor_fndecl_string_minmax_char4;
|
|
|
933 extern GTY(()) tree gfor_fndecl_adjustl_char4;
|
|
|
934 extern GTY(()) tree gfor_fndecl_adjustr_char4;
|
|
|
935 extern GTY(()) tree gfor_fndecl_select_string_char4;
|
|
|
936
|
|
|
937 /* Conversion between character kinds. */
|
|
|
938 extern GTY(()) tree gfor_fndecl_convert_char1_to_char4;
|
|
|
939 extern GTY(()) tree gfor_fndecl_convert_char4_to_char1;
|
|
|
940
|
|
|
941 /* Other misc. runtime library functions. */
|
|
|
942 extern GTY(()) tree gfor_fndecl_size0;
|
|
|
943 extern GTY(()) tree gfor_fndecl_size1;
|
|
|
944 extern GTY(()) tree gfor_fndecl_iargc;
|
|
131
|
945 extern GTY(()) tree gfor_fndecl_kill;
|
|
|
946 extern GTY(()) tree gfor_fndecl_kill_sub;
|
|
145
|
947 extern GTY(()) tree gfor_fndecl_is_contiguous0;
|
|
111
|
948
|
|
|
949 /* Implemented in Fortran. */
|
|
|
950 extern GTY(()) tree gfor_fndecl_sc_kind;
|
|
|
951 extern GTY(()) tree gfor_fndecl_si_kind;
|
|
|
952 extern GTY(()) tree gfor_fndecl_sr_kind;
|
|
|
953
|
|
|
954 /* IEEE-related. */
|
|
|
955 extern GTY(()) tree gfor_fndecl_ieee_procedure_entry;
|
|
|
956 extern GTY(()) tree gfor_fndecl_ieee_procedure_exit;
|
|
|
957
|
|
131
|
958 /* RANDOM_INIT. */
|
|
|
959 extern GTY(()) tree gfor_fndecl_random_init;
|
|
111
|
960
|
|
|
961 /* True if node is an integer constant. */
|
|
|
962 #define INTEGER_CST_P(node) (TREE_CODE(node) == INTEGER_CST)
|
|
|
963
|
|
|
964 /* gfortran-specific declaration information, the _CONT versions denote
|
|
|
965 arrays with CONTIGUOUS attribute. */
|
|
|
966
|
|
131
|
967 #define GFC_DTYPE_ELEM_LEN 0
|
|
|
968 #define GFC_DTYPE_VERSION 1
|
|
|
969 #define GFC_DTYPE_RANK 2
|
|
|
970 #define GFC_DTYPE_TYPE 3
|
|
|
971 #define GFC_DTYPE_ATTRIBUTE 4
|
|
|
972
|
|
111
|
973 enum gfc_array_kind
|
|
|
974 {
|
|
|
975 GFC_ARRAY_UNKNOWN,
|
|
|
976 GFC_ARRAY_ASSUMED_SHAPE,
|
|
|
977 GFC_ARRAY_ASSUMED_SHAPE_CONT,
|
|
|
978 GFC_ARRAY_ASSUMED_RANK,
|
|
|
979 GFC_ARRAY_ASSUMED_RANK_CONT,
|
|
|
980 GFC_ARRAY_ALLOCATABLE,
|
|
|
981 GFC_ARRAY_POINTER,
|
|
|
982 GFC_ARRAY_POINTER_CONT
|
|
|
983 };
|
|
|
984
|
|
|
985 /* Array types only. */
|
|
|
986 struct GTY(()) lang_type {
|
|
|
987 int rank, corank;
|
|
|
988 enum gfc_array_kind akind;
|
|
|
989 tree lbound[GFC_MAX_DIMENSIONS];
|
|
|
990 tree ubound[GFC_MAX_DIMENSIONS];
|
|
|
991 tree stride[GFC_MAX_DIMENSIONS];
|
|
|
992 tree size;
|
|
|
993 tree offset;
|
|
|
994 tree dtype;
|
|
|
995 tree dataptr_type;
|
|
|
996 tree base_decl[2];
|
|
|
997 tree nonrestricted_type;
|
|
|
998 tree caf_token;
|
|
|
999 tree caf_offset;
|
|
|
1000 };
|
|
|
1001
|
|
|
1002 struct GTY(()) lang_decl {
|
|
|
1003 /* Dummy variables. */
|
|
|
1004 tree saved_descriptor;
|
|
|
1005 /* Assigned integer nodes. Stringlength is the IO format string's length.
|
|
|
1006 Addr is the address of the string or the target label. Stringlength is
|
|
|
1007 initialized to -2 and assigned to -1 when addr is assigned to the
|
|
|
1008 address of target label. */
|
|
|
1009 tree stringlen;
|
|
|
1010 tree addr;
|
|
|
1011 /* For assumed-shape coarrays. */
|
|
|
1012 tree token, caf_offset;
|
|
|
1013 unsigned int scalar_allocatable : 1;
|
|
|
1014 unsigned int scalar_pointer : 1;
|
|
145
|
1015 unsigned int optional_arg : 1;
|
|
111
|
1016 };
|
|
|
1017
|
|
|
1018
|
|
|
1019 #define GFC_DECL_ASSIGN_ADDR(node) DECL_LANG_SPECIFIC(node)->addr
|
|
|
1020 #define GFC_DECL_STRING_LEN(node) DECL_LANG_SPECIFIC(node)->stringlen
|
|
|
1021 #define GFC_DECL_TOKEN(node) DECL_LANG_SPECIFIC(node)->token
|
|
|
1022 #define GFC_DECL_CAF_OFFSET(node) DECL_LANG_SPECIFIC(node)->caf_offset
|
|
|
1023 #define GFC_DECL_SAVED_DESCRIPTOR(node) \
|
|
|
1024 (DECL_LANG_SPECIFIC(node)->saved_descriptor)
|
|
|
1025 #define GFC_DECL_SCALAR_ALLOCATABLE(node) \
|
|
|
1026 (DECL_LANG_SPECIFIC (node)->scalar_allocatable)
|
|
|
1027 #define GFC_DECL_SCALAR_POINTER(node) \
|
|
|
1028 (DECL_LANG_SPECIFIC (node)->scalar_pointer)
|
|
145
|
1029 #define GFC_DECL_OPTIONAL_ARGUMENT(node) \
|
|
|
1030 (DECL_LANG_SPECIFIC (node)->optional_arg)
|
|
111
|
1031 #define GFC_DECL_GET_SCALAR_ALLOCATABLE(node) \
|
|
|
1032 (DECL_LANG_SPECIFIC (node) ? GFC_DECL_SCALAR_ALLOCATABLE (node) : 0)
|
|
|
1033 #define GFC_DECL_GET_SCALAR_POINTER(node) \
|
|
|
1034 (DECL_LANG_SPECIFIC (node) ? GFC_DECL_SCALAR_POINTER (node) : 0)
|
|
|
1035 #define GFC_DECL_PACKED_ARRAY(node) DECL_LANG_FLAG_0(node)
|
|
|
1036 #define GFC_DECL_PARTIAL_PACKED_ARRAY(node) DECL_LANG_FLAG_1(node)
|
|
|
1037 #define GFC_DECL_ASSIGN(node) DECL_LANG_FLAG_2(node)
|
|
|
1038 #define GFC_DECL_COMMON_OR_EQUIV(node) DECL_LANG_FLAG_3(node)
|
|
|
1039 #define GFC_DECL_CRAY_POINTEE(node) DECL_LANG_FLAG_4(node)
|
|
|
1040 #define GFC_DECL_RESULT(node) DECL_LANG_FLAG_5(node)
|
|
|
1041 #define GFC_DECL_PTR_ARRAY_P(node) DECL_LANG_FLAG_6(node)
|
|
|
1042 #define GFC_DECL_ASSOCIATE_VAR_P(node) DECL_LANG_FLAG_7(node)
|
|
|
1043 #define GFC_DECL_CLASS(node) DECL_LANG_FLAG_8(node)
|
|
|
1044
|
|
|
1045 /* An array descriptor. */
|
|
|
1046 #define GFC_DESCRIPTOR_TYPE_P(node) TYPE_LANG_FLAG_1(node)
|
|
|
1047 /* An array without a descriptor. */
|
|
|
1048 #define GFC_ARRAY_TYPE_P(node) TYPE_LANG_FLAG_2(node)
|
|
|
1049 /* Fortran CLASS type. */
|
|
|
1050 #define GFC_CLASS_TYPE_P(node) TYPE_LANG_FLAG_4(node)
|
|
|
1051 /* The GFC_TYPE_ARRAY_* members are present in both descriptor and
|
|
|
1052 descriptorless array types. */
|
|
|
1053 #define GFC_TYPE_ARRAY_LBOUND(node, dim) \
|
|
|
1054 (TYPE_LANG_SPECIFIC(node)->lbound[dim])
|
|
|
1055 #define GFC_TYPE_ARRAY_UBOUND(node, dim) \
|
|
|
1056 (TYPE_LANG_SPECIFIC(node)->ubound[dim])
|
|
|
1057 #define GFC_TYPE_ARRAY_STRIDE(node, dim) \
|
|
|
1058 (TYPE_LANG_SPECIFIC(node)->stride[dim])
|
|
|
1059 #define GFC_TYPE_ARRAY_RANK(node) (TYPE_LANG_SPECIFIC(node)->rank)
|
|
|
1060 #define GFC_TYPE_ARRAY_CORANK(node) (TYPE_LANG_SPECIFIC(node)->corank)
|
|
|
1061 #define GFC_TYPE_ARRAY_CAF_TOKEN(node) (TYPE_LANG_SPECIFIC(node)->caf_token)
|
|
|
1062 #define GFC_TYPE_ARRAY_CAF_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->caf_offset)
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1063 #define GFC_TYPE_ARRAY_SIZE(node) (TYPE_LANG_SPECIFIC(node)->size)
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1064 #define GFC_TYPE_ARRAY_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->offset)
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1065 #define GFC_TYPE_ARRAY_AKIND(node) (TYPE_LANG_SPECIFIC(node)->akind)
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1066 /* Code should use gfc_get_dtype instead of accessing this directly. It may
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1067 not be known when the type is created. */
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1068 #define GFC_TYPE_ARRAY_DTYPE(node) (TYPE_LANG_SPECIFIC(node)->dtype)
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1069 #define GFC_TYPE_ARRAY_DATAPTR_TYPE(node) \
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1070 (TYPE_LANG_SPECIFIC(node)->dataptr_type)
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1071 #define GFC_TYPE_ARRAY_BASE_DECL(node, internal) \
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1072 (TYPE_LANG_SPECIFIC(node)->base_decl[(internal)])
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1073
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1074
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1075 /* Build an expression with void type. */
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1076 #define build1_v(code, arg) \
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1077 fold_build1_loc (input_location, code, void_type_node, arg)
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1078 #define build2_v(code, arg1, arg2) \
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1079 fold_build2_loc (input_location, code, void_type_node, arg1, arg2)
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1080 #define build3_v(code, arg1, arg2, arg3) \
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1081 fold_build3_loc (input_location, code, void_type_node, arg1, arg2, arg3)
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1082 #define build4_v(code, arg1, arg2, arg3, arg4) \
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1083 build4_loc (input_location, code, void_type_node, arg1, arg2, \
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1084 arg3, arg4)
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1085
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1086 /* This group of functions allows a caller to evaluate an expression from
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1087 the callee's interface. It establishes a mapping between the interface's
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1088 dummy arguments and the caller's actual arguments, then applies that
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1089 mapping to a given gfc_expr.
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1090
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1091 You can initialize a mapping structure like so:
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1092
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1093 gfc_interface_mapping mapping;
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1094 ...
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1095 gfc_init_interface_mapping (&mapping);
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1096
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1097 You should then evaluate each actual argument into a temporary
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1098 gfc_se structure, here called "se", and map the result to the
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1099 dummy argument's symbol, here called "sym":
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1100
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1101 gfc_add_interface_mapping (&mapping, sym, &se);
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1102
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1103 After adding all mappings, you should call:
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1104
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1105 gfc_finish_interface_mapping (&mapping, pre, post);
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1106
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1107 where "pre" and "post" are statement blocks for initialization
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1108 and finalization code respectively. You can then evaluate an
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1109 interface expression "expr" as follows:
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1110
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1111 gfc_apply_interface_mapping (&mapping, se, expr);
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1112
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1113 Once you've evaluated all expressions, you should free
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1114 the mapping structure with:
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1115
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1116 gfc_free_interface_mapping (&mapping); */
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1117
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1118
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1119 /* This structure represents a mapping from OLD to NEW, where OLD is a
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1120 dummy argument symbol and NEW is a symbol that represents the value
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|
1121 of an actual argument. Mappings are linked together using NEXT
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1122 (in no particular order). */
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1123 typedef struct gfc_interface_sym_mapping
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1124 {
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1125 struct gfc_interface_sym_mapping *next;
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|
1126 gfc_symbol *old;
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1127 gfc_symtree *new_sym;
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1128 gfc_expr *expr;
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|
1129 }
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|
1130 gfc_interface_sym_mapping;
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1131
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1132
|
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1133 /* This structure is used by callers to evaluate an expression from
|
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1134 a callee's interface. */
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|
1135 typedef struct gfc_interface_mapping
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1136 {
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|
1137 /* Maps the interface's dummy arguments to the values that the caller
|
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|
1138 is passing. The whole list is owned by this gfc_interface_mapping. */
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|
|
1139 gfc_interface_sym_mapping *syms;
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1140
|
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|
1141 /* A list of gfc_charlens that were needed when creating copies of
|
|
|
1142 expressions. The whole list is owned by this gfc_interface_mapping. */
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|
|
1143 gfc_charlen *charlens;
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|
|
1144 }
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|
|
1145 gfc_interface_mapping;
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|
1146
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|
|
1147 void gfc_init_interface_mapping (gfc_interface_mapping *);
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1148 void gfc_free_interface_mapping (gfc_interface_mapping *);
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|
|
1149 void gfc_add_interface_mapping (gfc_interface_mapping *,
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|
|
1150 gfc_symbol *, gfc_se *, gfc_expr *);
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|
|
1151 void gfc_finish_interface_mapping (gfc_interface_mapping *,
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|
|
1152 stmtblock_t *, stmtblock_t *);
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|
|
1153 void gfc_apply_interface_mapping (gfc_interface_mapping *,
|
|
|
1154 gfc_se *, gfc_expr *);
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|
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1155
|
|
|
1156
|
|
|
1157 /* Standard error messages used in all the trans-*.c files. */
|
|
|
1158 extern const char gfc_msg_fault[];
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|
|
1159 extern const char gfc_msg_wrong_return[];
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1160
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1161 #define OMPWS_WORKSHARE_FLAG 1 /* Set if in a workshare construct. */
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|
1162 #define OMPWS_CURR_SINGLEUNIT 2 /* Set if current gfc_code in workshare
|
|
|
1163 construct is not workshared. */
|
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|
1164 #define OMPWS_SCALARIZER_WS 4 /* Set if scalarizer should attempt
|
|
|
1165 to create parallel loops. */
|
|
|
1166 #define OMPWS_SCALARIZER_BODY 8 /* Set if handling body of potential
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|
|
1167 parallel loop. */
|
|
|
1168 #define OMPWS_NOWAIT 16 /* Use NOWAIT on OMP_FOR. */
|
|
|
1169 extern int ompws_flags;
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1170
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|
|
1171 #endif /* GFC_TRANS_H */
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