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111
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1 /* A pure C API to enable client code to embed GCC as a JIT-compiler.
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145
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2 Copyright (C) 2013-2020 Free Software Foundation, Inc.
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111
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but
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12 WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #ifndef LIBGCCJIT_H
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21 #define LIBGCCJIT_H
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22
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23 #include <stdio.h>
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24
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25 #ifdef __cplusplus
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26 extern "C" {
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27 #endif /* __cplusplus */
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28
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29 /**********************************************************************
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30 Data structures.
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31 **********************************************************************/
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32 /* All structs within the API are opaque. */
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33
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34 /* A gcc_jit_context encapsulates the state of a compilation.
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35 You can set up options on it, and add types, functions and code, using
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36 the API below.
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37
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38 Invoking gcc_jit_context_compile on it gives you a gcc_jit_result *
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39 (or NULL), representing in-memory machine code.
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40
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41 You can call gcc_jit_context_compile repeatedly on one context, giving
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42 multiple independent results.
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43
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44 Similarly, you can call gcc_jit_context_compile_to_file on a context
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45 to compile to disk.
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46
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47 Eventually you can call gcc_jit_context_release to clean up the
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48 context; any in-memory results created from it are still usable, and
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49 should be cleaned up via gcc_jit_result_release. */
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50 typedef struct gcc_jit_context gcc_jit_context;
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51
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52 /* A gcc_jit_result encapsulates the result of an in-memory compilation. */
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53 typedef struct gcc_jit_result gcc_jit_result;
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54
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55 /* An object created within a context. Such objects are automatically
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56 cleaned up when the context is released.
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57
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58 The class hierarchy looks like this:
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59
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60 +- gcc_jit_object
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61 +- gcc_jit_location
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62 +- gcc_jit_type
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63 +- gcc_jit_struct
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64 +- gcc_jit_field
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65 +- gcc_jit_function
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66 +- gcc_jit_block
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67 +- gcc_jit_rvalue
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68 +- gcc_jit_lvalue
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69 +- gcc_jit_param
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70 +- gcc_jit_case
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71 */
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72 typedef struct gcc_jit_object gcc_jit_object;
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73
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74 /* A gcc_jit_location encapsulates a source code location, so that
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75 you can (optionally) associate locations in your language with
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76 statements in the JIT-compiled code, allowing the debugger to
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77 single-step through your language.
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78
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79 Note that to do so, you also need to enable
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80 GCC_JIT_BOOL_OPTION_DEBUGINFO
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81 on the gcc_jit_context.
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82
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83 gcc_jit_location instances are optional; you can always pass
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84 NULL. */
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85 typedef struct gcc_jit_location gcc_jit_location;
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86
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87 /* A gcc_jit_type encapsulates a type e.g. "int" or a "struct foo*". */
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88 typedef struct gcc_jit_type gcc_jit_type;
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89
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90 /* A gcc_jit_field encapsulates a field within a struct; it is used
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91 when creating a struct type (using gcc_jit_context_new_struct_type).
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92 Fields cannot be shared between structs. */
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93 typedef struct gcc_jit_field gcc_jit_field;
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94
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95 /* A gcc_jit_struct encapsulates a struct type, either one that we have
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96 the layout for, or an opaque type. */
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97 typedef struct gcc_jit_struct gcc_jit_struct;
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98
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99 /* A gcc_jit_function encapsulates a function: either one that you're
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100 creating yourself, or a reference to one that you're dynamically
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101 linking to within the rest of the process. */
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102 typedef struct gcc_jit_function gcc_jit_function;
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103
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104 /* A gcc_jit_block encapsulates a "basic block" of statements within a
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105 function (i.e. with one entry point and one exit point).
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106
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107 Every block within a function must be terminated with a conditional,
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108 a branch, or a return.
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109
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110 The blocks within a function form a directed graph.
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111
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112 The entrypoint to the function is the first block created within
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113 it.
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114
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115 All of the blocks in a function must be reachable via some path from
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116 the first block.
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117
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118 It's OK to have more than one "return" from a function (i.e. multiple
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119 blocks that terminate by returning). */
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120 typedef struct gcc_jit_block gcc_jit_block;
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121
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122 /* A gcc_jit_rvalue is an expression within your code, with some type. */
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123 typedef struct gcc_jit_rvalue gcc_jit_rvalue;
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124
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125 /* A gcc_jit_lvalue is a storage location within your code (e.g. a
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126 variable, a parameter, etc). It is also a gcc_jit_rvalue; use
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127 gcc_jit_lvalue_as_rvalue to cast. */
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128 typedef struct gcc_jit_lvalue gcc_jit_lvalue;
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129
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130 /* A gcc_jit_param is a function parameter, used when creating a
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131 gcc_jit_function. It is also a gcc_jit_lvalue (and thus also an
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132 rvalue); use gcc_jit_param_as_lvalue to convert. */
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133 typedef struct gcc_jit_param gcc_jit_param;
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134
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135 /* A gcc_jit_case is for use when building multiway branches via
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136 gcc_jit_block_end_with_switch and represents a range of integer
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137 values (or an individual integer value) together with an associated
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138 destination block. */
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139 typedef struct gcc_jit_case gcc_jit_case;
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140
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141 /* Acquire a JIT-compilation context. */
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142 extern gcc_jit_context *
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143 gcc_jit_context_acquire (void);
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144
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145 /* Release the context. After this call, it's no longer valid to use
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146 the ctxt. */
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147 extern void
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148 gcc_jit_context_release (gcc_jit_context *ctxt);
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149
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150 /* Options present in the initial release of libgccjit.
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151 These were handled using enums. */
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152
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153 /* Options taking string values. */
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154 enum gcc_jit_str_option
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155 {
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156 /* The name of the program, for use as a prefix when printing error
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157 messages to stderr. If NULL, or default, "libgccjit.so" is used. */
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158 GCC_JIT_STR_OPTION_PROGNAME,
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159
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160 GCC_JIT_NUM_STR_OPTIONS
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161 };
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162
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163 /* Options taking int values. */
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164 enum gcc_jit_int_option
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165 {
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166 /* How much to optimize the code.
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167 Valid values are 0-3, corresponding to GCC's command-line options
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168 -O0 through -O3.
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169
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170 The default value is 0 (unoptimized). */
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171 GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL,
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172
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173 GCC_JIT_NUM_INT_OPTIONS
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174 };
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175
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176 /* Options taking boolean values.
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177 These all default to "false". */
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178 enum gcc_jit_bool_option
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179 {
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180 /* If true, gcc_jit_context_compile will attempt to do the right
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181 thing so that if you attach a debugger to the process, it will
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182 be able to inspect variables and step through your code.
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183
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184 Note that you can't step through code unless you set up source
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185 location information for the code (by creating and passing in
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186 gcc_jit_location instances). */
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187 GCC_JIT_BOOL_OPTION_DEBUGINFO,
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188
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189 /* If true, gcc_jit_context_compile will dump its initial "tree"
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190 representation of your code to stderr (before any
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191 optimizations). */
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192 GCC_JIT_BOOL_OPTION_DUMP_INITIAL_TREE,
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193
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194 /* If true, gcc_jit_context_compile will dump the "gimple"
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195 representation of your code to stderr, before any optimizations
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196 are performed. The dump resembles C code. */
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197 GCC_JIT_BOOL_OPTION_DUMP_INITIAL_GIMPLE,
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198
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199 /* If true, gcc_jit_context_compile will dump the final
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200 generated code to stderr, in the form of assembly language. */
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201 GCC_JIT_BOOL_OPTION_DUMP_GENERATED_CODE,
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202
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203 /* If true, gcc_jit_context_compile will print information to stderr
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204 on the actions it is performing, followed by a profile showing
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205 the time taken and memory usage of each phase.
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206 */
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207 GCC_JIT_BOOL_OPTION_DUMP_SUMMARY,
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208
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209 /* If true, gcc_jit_context_compile will dump copious
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210 amount of information on what it's doing to various
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211 files within a temporary directory. Use
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212 GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES (see below) to
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213 see the results. The files are intended to be human-readable,
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214 but the exact files and their formats are subject to change.
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215 */
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216 GCC_JIT_BOOL_OPTION_DUMP_EVERYTHING,
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217
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218 /* If true, libgccjit will aggressively run its garbage collector, to
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219 shake out bugs (greatly slowing down the compile). This is likely
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220 to only be of interest to developers *of* the library. It is
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221 used when running the selftest suite. */
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222 GCC_JIT_BOOL_OPTION_SELFCHECK_GC,
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223
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224 /* If true, gcc_jit_context_release will not clean up
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225 intermediate files written to the filesystem, and will display
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226 their location on stderr. */
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227 GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES,
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228
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229 GCC_JIT_NUM_BOOL_OPTIONS
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230 };
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231
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232 /* Set a string option on the given context.
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233
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234 The context takes a copy of the string, so the
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235 (const char *) buffer is not needed anymore after the call
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236 returns. */
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237 extern void
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238 gcc_jit_context_set_str_option (gcc_jit_context *ctxt,
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239 enum gcc_jit_str_option opt,
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240 const char *value);
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241
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242 /* Set an int option on the given context. */
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243 extern void
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244 gcc_jit_context_set_int_option (gcc_jit_context *ctxt,
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245 enum gcc_jit_int_option opt,
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246 int value);
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247
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248 /* Set a boolean option on the given context.
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249
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250 Zero is "false" (the default), non-zero is "true". */
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251 extern void
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252 gcc_jit_context_set_bool_option (gcc_jit_context *ctxt,
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253 enum gcc_jit_bool_option opt,
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254 int value);
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255
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256 /* Options added after the initial release of libgccjit.
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257 These are handled by providing an entrypoint per option,
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258 rather than by extending the enum gcc_jit_*_option,
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259 so that client code that use these new options can be identified
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260 from binary metadata. */
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261
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262 /* By default, libgccjit will issue an error about unreachable blocks
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263 within a function.
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264
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265 This option can be used to disable that error.
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266
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267 This entrypoint was added in LIBGCCJIT_ABI_2; you can test for
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268 its presence using
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269 #ifdef LIBGCCJIT_HAVE_gcc_jit_context_set_bool_allow_unreachable_blocks
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270 */
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271
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272 extern void
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273 gcc_jit_context_set_bool_allow_unreachable_blocks (gcc_jit_context *ctxt,
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274 int bool_value);
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275
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276 /* Pre-canned feature macro to indicate the presence of
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277 gcc_jit_context_set_bool_allow_unreachable_blocks. This can be
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278 tested for with #ifdef. */
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279 #define LIBGCCJIT_HAVE_gcc_jit_context_set_bool_allow_unreachable_blocks
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280
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281 /* Implementation detail:
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282 libgccjit internally generates assembler, and uses "driver" code
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283 for converting it to other formats (e.g. shared libraries).
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284
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285 By default, libgccjit will use an embedded copy of the driver
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286 code.
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287
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288 This option can be used to instead invoke an external driver executable
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289 as a subprocess.
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290
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291 This entrypoint was added in LIBGCCJIT_ABI_5; you can test for
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292 its presence using
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293 #ifdef LIBGCCJIT_HAVE_gcc_jit_context_set_bool_use_external_driver
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294 */
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295
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296 extern void
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297 gcc_jit_context_set_bool_use_external_driver (gcc_jit_context *ctxt,
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298 int bool_value);
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299
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300 /* Pre-canned feature macro to indicate the presence of
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301 gcc_jit_context_set_bool_use_external_driver. This can be
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302 tested for with #ifdef. */
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303 #define LIBGCCJIT_HAVE_gcc_jit_context_set_bool_use_external_driver
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304
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305 /* Add an arbitrary gcc command-line option to the context.
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306 The context takes a copy of the string, so the
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307 (const char *) optname is not needed anymore after the call
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308 returns.
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309
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310 Note that only some options are likely to be meaningful; there is no
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311 "frontend" within libgccjit, so typically only those affecting
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312 optimization and code-generation are likely to be useful.
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313
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314 This entrypoint was added in LIBGCCJIT_ABI_1; you can test for
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315 its presence using
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316 #ifdef LIBGCCJIT_HAVE_gcc_jit_context_add_command_line_option
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317 */
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318
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319 extern void
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320 gcc_jit_context_add_command_line_option (gcc_jit_context *ctxt,
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321 const char *optname);
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322
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323 /* Pre-canned feature-test macro for detecting the presence of
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324 gcc_jit_context_add_command_line_option within libgccjit.h. */
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325
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326 #define LIBGCCJIT_HAVE_gcc_jit_context_add_command_line_option
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327
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145
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328 /* Add an arbitrary gcc driver option to the context.
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329 The context takes a copy of the string, so the
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330 (const char *) optname is not needed anymore after the call
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331 returns.
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332
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333 Note that only some options are likely to be meaningful; there is no
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334 "frontend" within libgccjit, so typically only those affecting
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335 assembler and linker are likely to be useful.
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336
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337 This entrypoint was added in LIBGCCJIT_ABI_11; you can test for
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338 its presence using
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339 #ifdef LIBGCCJIT_HAVE_gcc_jit_context_add_driver_option
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340 */
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341 extern void
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342 gcc_jit_context_add_driver_option (gcc_jit_context *ctxt,
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343 const char *optname);
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344
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345 /* Pre-canned feature-test macro for detecting the presence of
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346 gcc_jit_context_add_driver_option within libgccjit.h. */
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347
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348 #define LIBGCCJIT_HAVE_gcc_jit_context_add_driver_option
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349
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111
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350 /* Compile the context to in-memory machine code.
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351
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352 This can be called more that once on a given context,
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353 although any errors that occur will block further compilation. */
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354
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355 extern gcc_jit_result *
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356 gcc_jit_context_compile (gcc_jit_context *ctxt);
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357
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358 /* Kinds of ahead-of-time compilation, for use with
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359 gcc_jit_context_compile_to_file. */
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360
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361 enum gcc_jit_output_kind
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362 {
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363 /* Compile the context to an assembler file. */
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364 GCC_JIT_OUTPUT_KIND_ASSEMBLER,
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365
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366 /* Compile the context to an object file. */
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367 GCC_JIT_OUTPUT_KIND_OBJECT_FILE,
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368
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369 /* Compile the context to a dynamic library. */
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370 GCC_JIT_OUTPUT_KIND_DYNAMIC_LIBRARY,
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371
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372 /* Compile the context to an executable. */
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373 GCC_JIT_OUTPUT_KIND_EXECUTABLE
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374 };
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375
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376 /* Compile the context to a file of the given kind.
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377
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378 This can be called more that once on a given context,
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379 although any errors that occur will block further compilation. */
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380
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381 extern void
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382 gcc_jit_context_compile_to_file (gcc_jit_context *ctxt,
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383 enum gcc_jit_output_kind output_kind,
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384 const char *output_path);
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385
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386 /* To help with debugging: dump a C-like representation to the given path,
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387 describing what's been set up on the context.
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388
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389 If "update_locations" is true, then also set up gcc_jit_location
|
|
|
390 information throughout the context, pointing at the dump file as if it
|
|
|
391 were a source file. This may be of use in conjunction with
|
|
|
392 GCC_JIT_BOOL_OPTION_DEBUGINFO to allow stepping through the code in a
|
|
|
393 debugger. */
|
|
|
394 extern void
|
|
|
395 gcc_jit_context_dump_to_file (gcc_jit_context *ctxt,
|
|
|
396 const char *path,
|
|
|
397 int update_locations);
|
|
|
398
|
|
|
399 /* To help with debugging; enable ongoing logging of the context's
|
|
|
400 activity to the given FILE *.
|
|
|
401
|
|
|
402 The caller remains responsible for closing "logfile".
|
|
|
403
|
|
|
404 Params "flags" and "verbosity" are reserved for future use, and
|
|
|
405 must both be 0 for now. */
|
|
|
406 extern void
|
|
|
407 gcc_jit_context_set_logfile (gcc_jit_context *ctxt,
|
|
|
408 FILE *logfile,
|
|
|
409 int flags,
|
|
|
410 int verbosity);
|
|
|
411
|
|
|
412 /* To be called after any API call, this gives the first error message
|
|
|
413 that occurred on the context.
|
|
|
414
|
|
|
415 The returned string is valid for the rest of the lifetime of the
|
|
|
416 context.
|
|
|
417
|
|
|
418 If no errors occurred, this will be NULL. */
|
|
|
419 extern const char *
|
|
|
420 gcc_jit_context_get_first_error (gcc_jit_context *ctxt);
|
|
|
421
|
|
|
422 /* To be called after any API call, this gives the last error message
|
|
|
423 that occurred on the context.
|
|
|
424
|
|
|
425 If no errors occurred, this will be NULL.
|
|
|
426
|
|
|
427 If non-NULL, the returned string is only guaranteed to be valid until
|
|
|
428 the next call to libgccjit relating to this context. */
|
|
|
429 extern const char *
|
|
|
430 gcc_jit_context_get_last_error (gcc_jit_context *ctxt);
|
|
|
431
|
|
|
432 /* Locate a given function within the built machine code.
|
|
|
433 This will need to be cast to a function pointer of the
|
|
|
434 correct type before it can be called. */
|
|
|
435 extern void *
|
|
|
436 gcc_jit_result_get_code (gcc_jit_result *result,
|
|
|
437 const char *funcname);
|
|
|
438
|
|
|
439 /* Locate a given global within the built machine code.
|
|
|
440 It must have been created using GCC_JIT_GLOBAL_EXPORTED.
|
|
|
441 This is a ptr to the global, so e.g. for an int this is an int *. */
|
|
|
442 extern void *
|
|
|
443 gcc_jit_result_get_global (gcc_jit_result *result,
|
|
|
444 const char *name);
|
|
|
445
|
|
|
446 /* Once we're done with the code, this unloads the built .so file.
|
|
|
447 This cleans up the result; after calling this, it's no longer
|
|
|
448 valid to use the result. */
|
|
|
449 extern void
|
|
|
450 gcc_jit_result_release (gcc_jit_result *result);
|
|
|
451
|
|
|
452
|
|
|
453 /**********************************************************************
|
|
|
454 Functions for creating "contextual" objects.
|
|
|
455
|
|
|
456 All objects created by these functions share the lifetime of the context
|
|
|
457 they are created within, and are automatically cleaned up for you when
|
|
|
458 you call gcc_jit_context_release on the context.
|
|
|
459
|
|
|
460 Note that this means you can't use references to them after you've
|
|
|
461 released their context.
|
|
|
462
|
|
|
463 All (const char *) string arguments passed to these functions are
|
|
|
464 copied, so you don't need to keep them around.
|
|
|
465
|
|
|
466 You create code by adding a sequence of statements to blocks.
|
|
|
467 **********************************************************************/
|
|
|
468
|
|
|
469 /**********************************************************************
|
|
|
470 The base class of "contextual" object.
|
|
|
471 **********************************************************************/
|
|
|
472 /* Which context is "obj" within? */
|
|
|
473 extern gcc_jit_context *
|
|
|
474 gcc_jit_object_get_context (gcc_jit_object *obj);
|
|
|
475
|
|
|
476 /* Get a human-readable description of this object.
|
|
|
477 The string buffer is created the first time this is called on a given
|
|
|
478 object, and persists until the object's context is released. */
|
|
|
479 extern const char *
|
|
|
480 gcc_jit_object_get_debug_string (gcc_jit_object *obj);
|
|
|
481
|
|
|
482 /**********************************************************************
|
|
|
483 Debugging information.
|
|
|
484 **********************************************************************/
|
|
|
485
|
|
|
486 /* Creating source code locations for use by the debugger.
|
|
|
487 Line and column numbers are 1-based. */
|
|
|
488 extern gcc_jit_location *
|
|
|
489 gcc_jit_context_new_location (gcc_jit_context *ctxt,
|
|
|
490 const char *filename,
|
|
|
491 int line,
|
|
|
492 int column);
|
|
|
493
|
|
|
494 /* Upcasting from location to object. */
|
|
|
495 extern gcc_jit_object *
|
|
|
496 gcc_jit_location_as_object (gcc_jit_location *loc);
|
|
|
497
|
|
|
498
|
|
|
499 /**********************************************************************
|
|
|
500 Types.
|
|
|
501 **********************************************************************/
|
|
|
502
|
|
|
503 /* Upcasting from type to object. */
|
|
|
504 extern gcc_jit_object *
|
|
|
505 gcc_jit_type_as_object (gcc_jit_type *type);
|
|
|
506
|
|
|
507 /* Access to specific types. */
|
|
|
508 enum gcc_jit_types
|
|
|
509 {
|
|
|
510 /* C's "void" type. */
|
|
|
511 GCC_JIT_TYPE_VOID,
|
|
|
512
|
|
|
513 /* "void *". */
|
|
|
514 GCC_JIT_TYPE_VOID_PTR,
|
|
|
515
|
|
|
516 /* C++'s bool type; also C99's "_Bool" type, aka "bool" if using
|
|
|
517 stdbool.h. */
|
|
|
518 GCC_JIT_TYPE_BOOL,
|
|
|
519
|
|
|
520 /* Various integer types. */
|
|
|
521
|
|
|
522 /* C's "char" (of some signedness) and the variants where the
|
|
|
523 signedness is specified. */
|
|
|
524 GCC_JIT_TYPE_CHAR,
|
|
|
525 GCC_JIT_TYPE_SIGNED_CHAR,
|
|
|
526 GCC_JIT_TYPE_UNSIGNED_CHAR,
|
|
|
527
|
|
|
528 /* C's "short" and "unsigned short". */
|
|
|
529 GCC_JIT_TYPE_SHORT, /* signed */
|
|
|
530 GCC_JIT_TYPE_UNSIGNED_SHORT,
|
|
|
531
|
|
|
532 /* C's "int" and "unsigned int". */
|
|
|
533 GCC_JIT_TYPE_INT, /* signed */
|
|
|
534 GCC_JIT_TYPE_UNSIGNED_INT,
|
|
|
535
|
|
|
536 /* C's "long" and "unsigned long". */
|
|
|
537 GCC_JIT_TYPE_LONG, /* signed */
|
|
|
538 GCC_JIT_TYPE_UNSIGNED_LONG,
|
|
|
539
|
|
|
540 /* C99's "long long" and "unsigned long long". */
|
|
|
541 GCC_JIT_TYPE_LONG_LONG, /* signed */
|
|
|
542 GCC_JIT_TYPE_UNSIGNED_LONG_LONG,
|
|
|
543
|
|
|
544 /* Floating-point types */
|
|
|
545
|
|
|
546 GCC_JIT_TYPE_FLOAT,
|
|
|
547 GCC_JIT_TYPE_DOUBLE,
|
|
|
548 GCC_JIT_TYPE_LONG_DOUBLE,
|
|
|
549
|
|
|
550 /* C type: (const char *). */
|
|
|
551 GCC_JIT_TYPE_CONST_CHAR_PTR,
|
|
|
552
|
|
|
553 /* The C "size_t" type. */
|
|
|
554 GCC_JIT_TYPE_SIZE_T,
|
|
|
555
|
|
|
556 /* C type: (FILE *) */
|
|
|
557 GCC_JIT_TYPE_FILE_PTR,
|
|
|
558
|
|
|
559 /* Complex numbers. */
|
|
|
560 GCC_JIT_TYPE_COMPLEX_FLOAT,
|
|
|
561 GCC_JIT_TYPE_COMPLEX_DOUBLE,
|
|
|
562 GCC_JIT_TYPE_COMPLEX_LONG_DOUBLE
|
|
|
563
|
|
|
564 };
|
|
|
565
|
|
|
566 extern gcc_jit_type *
|
|
|
567 gcc_jit_context_get_type (gcc_jit_context *ctxt,
|
|
|
568 enum gcc_jit_types type_);
|
|
|
569
|
|
|
570 /* Get the integer type of the given size and signedness. */
|
|
|
571 extern gcc_jit_type *
|
|
|
572 gcc_jit_context_get_int_type (gcc_jit_context *ctxt,
|
|
|
573 int num_bytes, int is_signed);
|
|
|
574
|
|
|
575 /* Constructing new types. */
|
|
|
576
|
|
|
577 /* Given type "T", get type "T*". */
|
|
|
578 extern gcc_jit_type *
|
|
|
579 gcc_jit_type_get_pointer (gcc_jit_type *type);
|
|
|
580
|
|
|
581 /* Given type "T", get type "const T". */
|
|
|
582 extern gcc_jit_type *
|
|
|
583 gcc_jit_type_get_const (gcc_jit_type *type);
|
|
|
584
|
|
|
585 /* Given type "T", get type "volatile T". */
|
|
|
586 extern gcc_jit_type *
|
|
|
587 gcc_jit_type_get_volatile (gcc_jit_type *type);
|
|
|
588
|
|
|
589 /* Given type "T", get type "T[N]" (for a constant N). */
|
|
|
590 extern gcc_jit_type *
|
|
|
591 gcc_jit_context_new_array_type (gcc_jit_context *ctxt,
|
|
|
592 gcc_jit_location *loc,
|
|
|
593 gcc_jit_type *element_type,
|
|
|
594 int num_elements);
|
|
|
595
|
|
|
596 /* Struct-handling. */
|
|
|
597
|
|
|
598 /* Create a field, for use within a struct or union. */
|
|
|
599 extern gcc_jit_field *
|
|
|
600 gcc_jit_context_new_field (gcc_jit_context *ctxt,
|
|
|
601 gcc_jit_location *loc,
|
|
|
602 gcc_jit_type *type,
|
|
|
603 const char *name);
|
|
|
604
|
|
145
|
605 #define LIBGCCJIT_HAVE_gcc_jit_context_new_bitfield
|
|
|
606
|
|
|
607 /* Create a bit field, for use within a struct or union.
|
|
|
608
|
|
|
609 This API entrypoint was added in LIBGCCJIT_ABI_12; you can test for its
|
|
|
610 presence using
|
|
|
611 #ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_bitfield
|
|
|
612 */
|
|
|
613 extern gcc_jit_field *
|
|
|
614 gcc_jit_context_new_bitfield (gcc_jit_context *ctxt,
|
|
|
615 gcc_jit_location *loc,
|
|
|
616 gcc_jit_type *type,
|
|
|
617 int width,
|
|
|
618 const char *name);
|
|
|
619
|
|
111
|
620 /* Upcasting from field to object. */
|
|
|
621 extern gcc_jit_object *
|
|
|
622 gcc_jit_field_as_object (gcc_jit_field *field);
|
|
|
623
|
|
|
624 /* Create a struct type from an array of fields. */
|
|
|
625 extern gcc_jit_struct *
|
|
|
626 gcc_jit_context_new_struct_type (gcc_jit_context *ctxt,
|
|
|
627 gcc_jit_location *loc,
|
|
|
628 const char *name,
|
|
|
629 int num_fields,
|
|
|
630 gcc_jit_field **fields);
|
|
|
631
|
|
|
632 /* Create an opaque struct type. */
|
|
|
633 extern gcc_jit_struct *
|
|
|
634 gcc_jit_context_new_opaque_struct (gcc_jit_context *ctxt,
|
|
|
635 gcc_jit_location *loc,
|
|
|
636 const char *name);
|
|
|
637
|
|
|
638 /* Upcast a struct to a type. */
|
|
|
639 extern gcc_jit_type *
|
|
|
640 gcc_jit_struct_as_type (gcc_jit_struct *struct_type);
|
|
|
641
|
|
|
642 /* Populating the fields of a formerly-opaque struct type.
|
|
|
643 This can only be called once on a given struct type. */
|
|
|
644 extern void
|
|
|
645 gcc_jit_struct_set_fields (gcc_jit_struct *struct_type,
|
|
|
646 gcc_jit_location *loc,
|
|
|
647 int num_fields,
|
|
|
648 gcc_jit_field **fields);
|
|
|
649
|
|
|
650 /* Unions work similarly to structs. */
|
|
|
651 extern gcc_jit_type *
|
|
|
652 gcc_jit_context_new_union_type (gcc_jit_context *ctxt,
|
|
|
653 gcc_jit_location *loc,
|
|
|
654 const char *name,
|
|
|
655 int num_fields,
|
|
|
656 gcc_jit_field **fields);
|
|
|
657
|
|
|
658 /* Function pointers. */
|
|
|
659
|
|
|
660 extern gcc_jit_type *
|
|
|
661 gcc_jit_context_new_function_ptr_type (gcc_jit_context *ctxt,
|
|
|
662 gcc_jit_location *loc,
|
|
|
663 gcc_jit_type *return_type,
|
|
|
664 int num_params,
|
|
|
665 gcc_jit_type **param_types,
|
|
|
666 int is_variadic);
|
|
|
667
|
|
|
668 /**********************************************************************
|
|
|
669 Constructing functions.
|
|
|
670 **********************************************************************/
|
|
|
671 /* Create a function param. */
|
|
|
672 extern gcc_jit_param *
|
|
|
673 gcc_jit_context_new_param (gcc_jit_context *ctxt,
|
|
|
674 gcc_jit_location *loc,
|
|
|
675 gcc_jit_type *type,
|
|
|
676 const char *name);
|
|
|
677
|
|
|
678 /* Upcasting from param to object. */
|
|
|
679 extern gcc_jit_object *
|
|
|
680 gcc_jit_param_as_object (gcc_jit_param *param);
|
|
|
681
|
|
|
682 /* Upcasting from param to lvalue. */
|
|
|
683 extern gcc_jit_lvalue *
|
|
|
684 gcc_jit_param_as_lvalue (gcc_jit_param *param);
|
|
|
685
|
|
|
686 /* Upcasting from param to rvalue. */
|
|
|
687 extern gcc_jit_rvalue *
|
|
|
688 gcc_jit_param_as_rvalue (gcc_jit_param *param);
|
|
|
689
|
|
|
690 /* Kinds of function. */
|
|
|
691 enum gcc_jit_function_kind
|
|
|
692 {
|
|
|
693 /* Function is defined by the client code and visible
|
|
|
694 by name outside of the JIT. */
|
|
|
695 GCC_JIT_FUNCTION_EXPORTED,
|
|
|
696
|
|
|
697 /* Function is defined by the client code, but is invisible
|
|
|
698 outside of the JIT. Analogous to a "static" function. */
|
|
|
699 GCC_JIT_FUNCTION_INTERNAL,
|
|
|
700
|
|
|
701 /* Function is not defined by the client code; we're merely
|
|
|
702 referring to it. Analogous to using an "extern" function from a
|
|
|
703 header file. */
|
|
|
704 GCC_JIT_FUNCTION_IMPORTED,
|
|
|
705
|
|
|
706 /* Function is only ever inlined into other functions, and is
|
|
|
707 invisible outside of the JIT.
|
|
|
708
|
|
|
709 Analogous to prefixing with "inline" and adding
|
|
|
710 __attribute__((always_inline)).
|
|
|
711
|
|
|
712 Inlining will only occur when the optimization level is
|
|
|
713 above 0; when optimization is off, this is essentially the
|
|
|
714 same as GCC_JIT_FUNCTION_INTERNAL. */
|
|
|
715 GCC_JIT_FUNCTION_ALWAYS_INLINE
|
|
|
716 };
|
|
|
717
|
|
|
718 /* Create a function. */
|
|
|
719 extern gcc_jit_function *
|
|
|
720 gcc_jit_context_new_function (gcc_jit_context *ctxt,
|
|
|
721 gcc_jit_location *loc,
|
|
|
722 enum gcc_jit_function_kind kind,
|
|
|
723 gcc_jit_type *return_type,
|
|
|
724 const char *name,
|
|
|
725 int num_params,
|
|
|
726 gcc_jit_param **params,
|
|
|
727 int is_variadic);
|
|
|
728
|
|
|
729 /* Create a reference to a builtin function (sometimes called
|
|
|
730 intrinsic functions). */
|
|
|
731 extern gcc_jit_function *
|
|
|
732 gcc_jit_context_get_builtin_function (gcc_jit_context *ctxt,
|
|
|
733 const char *name);
|
|
|
734
|
|
|
735 /* Upcasting from function to object. */
|
|
|
736 extern gcc_jit_object *
|
|
|
737 gcc_jit_function_as_object (gcc_jit_function *func);
|
|
|
738
|
|
|
739 /* Get a specific param of a function by index. */
|
|
|
740 extern gcc_jit_param *
|
|
|
741 gcc_jit_function_get_param (gcc_jit_function *func, int index);
|
|
|
742
|
|
|
743 /* Emit the function in graphviz format. */
|
|
|
744 extern void
|
|
|
745 gcc_jit_function_dump_to_dot (gcc_jit_function *func,
|
|
|
746 const char *path);
|
|
|
747
|
|
|
748 /* Create a block.
|
|
|
749
|
|
|
750 The name can be NULL, or you can give it a meaningful name, which
|
|
|
751 may show up in dumps of the internal representation, and in error
|
|
|
752 messages. */
|
|
|
753 extern gcc_jit_block *
|
|
|
754 gcc_jit_function_new_block (gcc_jit_function *func,
|
|
|
755 const char *name);
|
|
|
756
|
|
|
757 /* Upcasting from block to object. */
|
|
|
758 extern gcc_jit_object *
|
|
|
759 gcc_jit_block_as_object (gcc_jit_block *block);
|
|
|
760
|
|
|
761 /* Which function is this block within? */
|
|
|
762 extern gcc_jit_function *
|
|
|
763 gcc_jit_block_get_function (gcc_jit_block *block);
|
|
|
764
|
|
|
765 /**********************************************************************
|
|
|
766 lvalues, rvalues and expressions.
|
|
|
767 **********************************************************************/
|
|
|
768 enum gcc_jit_global_kind
|
|
|
769 {
|
|
|
770 /* Global is defined by the client code and visible
|
|
|
771 by name outside of this JIT context via gcc_jit_result_get_global. */
|
|
|
772 GCC_JIT_GLOBAL_EXPORTED,
|
|
|
773
|
|
|
774 /* Global is defined by the client code, but is invisible
|
|
|
775 outside of this JIT context. Analogous to a "static" global. */
|
|
|
776 GCC_JIT_GLOBAL_INTERNAL,
|
|
|
777
|
|
|
778 /* Global is not defined by the client code; we're merely
|
|
|
779 referring to it. Analogous to using an "extern" global from a
|
|
|
780 header file. */
|
|
|
781 GCC_JIT_GLOBAL_IMPORTED
|
|
|
782 };
|
|
|
783
|
|
|
784 extern gcc_jit_lvalue *
|
|
|
785 gcc_jit_context_new_global (gcc_jit_context *ctxt,
|
|
|
786 gcc_jit_location *loc,
|
|
|
787 enum gcc_jit_global_kind kind,
|
|
|
788 gcc_jit_type *type,
|
|
|
789 const char *name);
|
|
|
790
|
|
|
791 /* Upcasting. */
|
|
|
792 extern gcc_jit_object *
|
|
|
793 gcc_jit_lvalue_as_object (gcc_jit_lvalue *lvalue);
|
|
|
794
|
|
|
795 extern gcc_jit_rvalue *
|
|
|
796 gcc_jit_lvalue_as_rvalue (gcc_jit_lvalue *lvalue);
|
|
|
797
|
|
|
798 extern gcc_jit_object *
|
|
|
799 gcc_jit_rvalue_as_object (gcc_jit_rvalue *rvalue);
|
|
|
800
|
|
|
801 extern gcc_jit_type *
|
|
|
802 gcc_jit_rvalue_get_type (gcc_jit_rvalue *rvalue);
|
|
|
803
|
|
|
804 /* Integer constants. */
|
|
|
805 extern gcc_jit_rvalue *
|
|
|
806 gcc_jit_context_new_rvalue_from_int (gcc_jit_context *ctxt,
|
|
|
807 gcc_jit_type *numeric_type,
|
|
|
808 int value);
|
|
|
809
|
|
|
810 extern gcc_jit_rvalue *
|
|
|
811 gcc_jit_context_new_rvalue_from_long (gcc_jit_context *ctxt,
|
|
|
812 gcc_jit_type *numeric_type,
|
|
|
813 long value);
|
|
|
814
|
|
|
815 extern gcc_jit_rvalue *
|
|
|
816 gcc_jit_context_zero (gcc_jit_context *ctxt,
|
|
|
817 gcc_jit_type *numeric_type);
|
|
|
818
|
|
|
819 extern gcc_jit_rvalue *
|
|
|
820 gcc_jit_context_one (gcc_jit_context *ctxt,
|
|
|
821 gcc_jit_type *numeric_type);
|
|
|
822
|
|
|
823 /* Floating-point constants. */
|
|
|
824 extern gcc_jit_rvalue *
|
|
|
825 gcc_jit_context_new_rvalue_from_double (gcc_jit_context *ctxt,
|
|
|
826 gcc_jit_type *numeric_type,
|
|
|
827 double value);
|
|
|
828
|
|
|
829 /* Pointers. */
|
|
|
830 extern gcc_jit_rvalue *
|
|
|
831 gcc_jit_context_new_rvalue_from_ptr (gcc_jit_context *ctxt,
|
|
|
832 gcc_jit_type *pointer_type,
|
|
|
833 void *value);
|
|
|
834
|
|
|
835 extern gcc_jit_rvalue *
|
|
|
836 gcc_jit_context_null (gcc_jit_context *ctxt,
|
|
|
837 gcc_jit_type *pointer_type);
|
|
|
838
|
|
|
839 /* String literals. */
|
|
|
840 extern gcc_jit_rvalue *
|
|
|
841 gcc_jit_context_new_string_literal (gcc_jit_context *ctxt,
|
|
|
842 const char *value);
|
|
|
843
|
|
|
844 enum gcc_jit_unary_op
|
|
|
845 {
|
|
|
846 /* Negate an arithmetic value; analogous to:
|
|
|
847 -(EXPR)
|
|
|
848 in C. */
|
|
|
849 GCC_JIT_UNARY_OP_MINUS,
|
|
|
850
|
|
|
851 /* Bitwise negation of an integer value (one's complement); analogous
|
|
|
852 to:
|
|
|
853 ~(EXPR)
|
|
|
854 in C. */
|
|
|
855 GCC_JIT_UNARY_OP_BITWISE_NEGATE,
|
|
|
856
|
|
|
857 /* Logical negation of an arithmetic or pointer value; analogous to:
|
|
|
858 !(EXPR)
|
|
|
859 in C. */
|
|
|
860 GCC_JIT_UNARY_OP_LOGICAL_NEGATE,
|
|
|
861
|
|
|
862 /* Absolute value of an arithmetic expression; analogous to:
|
|
|
863 abs (EXPR)
|
|
|
864 in C. */
|
|
|
865 GCC_JIT_UNARY_OP_ABS
|
|
|
866
|
|
|
867 };
|
|
|
868
|
|
|
869 extern gcc_jit_rvalue *
|
|
|
870 gcc_jit_context_new_unary_op (gcc_jit_context *ctxt,
|
|
|
871 gcc_jit_location *loc,
|
|
|
872 enum gcc_jit_unary_op op,
|
|
|
873 gcc_jit_type *result_type,
|
|
|
874 gcc_jit_rvalue *rvalue);
|
|
|
875
|
|
|
876 enum gcc_jit_binary_op
|
|
|
877 {
|
|
|
878 /* Addition of arithmetic values; analogous to:
|
|
|
879 (EXPR_A) + (EXPR_B)
|
|
|
880 in C.
|
|
|
881 For pointer addition, use gcc_jit_context_new_array_access. */
|
|
|
882 GCC_JIT_BINARY_OP_PLUS,
|
|
|
883
|
|
|
884 /* Subtraction of arithmetic values; analogous to:
|
|
|
885 (EXPR_A) - (EXPR_B)
|
|
|
886 in C. */
|
|
|
887 GCC_JIT_BINARY_OP_MINUS,
|
|
|
888
|
|
|
889 /* Multiplication of a pair of arithmetic values; analogous to:
|
|
|
890 (EXPR_A) * (EXPR_B)
|
|
|
891 in C. */
|
|
|
892 GCC_JIT_BINARY_OP_MULT,
|
|
|
893
|
|
|
894 /* Quotient of division of arithmetic values; analogous to:
|
|
|
895 (EXPR_A) / (EXPR_B)
|
|
|
896 in C.
|
|
|
897 The result type affects the kind of division: if the result type is
|
|
|
898 integer-based, then the result is truncated towards zero, whereas
|
|
|
899 a floating-point result type indicates floating-point division. */
|
|
|
900 GCC_JIT_BINARY_OP_DIVIDE,
|
|
|
901
|
|
|
902 /* Remainder of division of arithmetic values; analogous to:
|
|
|
903 (EXPR_A) % (EXPR_B)
|
|
|
904 in C. */
|
|
|
905 GCC_JIT_BINARY_OP_MODULO,
|
|
|
906
|
|
|
907 /* Bitwise AND; analogous to:
|
|
|
908 (EXPR_A) & (EXPR_B)
|
|
|
909 in C. */
|
|
|
910 GCC_JIT_BINARY_OP_BITWISE_AND,
|
|
|
911
|
|
|
912 /* Bitwise exclusive OR; analogous to:
|
|
|
913 (EXPR_A) ^ (EXPR_B)
|
|
|
914 in C. */
|
|
|
915 GCC_JIT_BINARY_OP_BITWISE_XOR,
|
|
|
916
|
|
|
917 /* Bitwise inclusive OR; analogous to:
|
|
|
918 (EXPR_A) | (EXPR_B)
|
|
|
919 in C. */
|
|
|
920 GCC_JIT_BINARY_OP_BITWISE_OR,
|
|
|
921
|
|
|
922 /* Logical AND; analogous to:
|
|
|
923 (EXPR_A) && (EXPR_B)
|
|
|
924 in C. */
|
|
|
925 GCC_JIT_BINARY_OP_LOGICAL_AND,
|
|
|
926
|
|
|
927 /* Logical OR; analogous to:
|
|
|
928 (EXPR_A) || (EXPR_B)
|
|
|
929 in C. */
|
|
|
930 GCC_JIT_BINARY_OP_LOGICAL_OR,
|
|
|
931
|
|
|
932 /* Left shift; analogous to:
|
|
|
933 (EXPR_A) << (EXPR_B)
|
|
|
934 in C. */
|
|
|
935 GCC_JIT_BINARY_OP_LSHIFT,
|
|
|
936
|
|
|
937 /* Right shift; analogous to:
|
|
|
938 (EXPR_A) >> (EXPR_B)
|
|
|
939 in C. */
|
|
|
940 GCC_JIT_BINARY_OP_RSHIFT
|
|
|
941 };
|
|
|
942
|
|
|
943 extern gcc_jit_rvalue *
|
|
|
944 gcc_jit_context_new_binary_op (gcc_jit_context *ctxt,
|
|
|
945 gcc_jit_location *loc,
|
|
|
946 enum gcc_jit_binary_op op,
|
|
|
947 gcc_jit_type *result_type,
|
|
|
948 gcc_jit_rvalue *a, gcc_jit_rvalue *b);
|
|
|
949
|
|
|
950 /* (Comparisons are treated as separate from "binary_op" to save
|
|
|
951 you having to specify the result_type). */
|
|
|
952
|
|
|
953 enum gcc_jit_comparison
|
|
|
954 {
|
|
|
955 /* (EXPR_A) == (EXPR_B). */
|
|
|
956 GCC_JIT_COMPARISON_EQ,
|
|
|
957
|
|
|
958 /* (EXPR_A) != (EXPR_B). */
|
|
|
959 GCC_JIT_COMPARISON_NE,
|
|
|
960
|
|
|
961 /* (EXPR_A) < (EXPR_B). */
|
|
|
962 GCC_JIT_COMPARISON_LT,
|
|
|
963
|
|
|
964 /* (EXPR_A) <=(EXPR_B). */
|
|
|
965 GCC_JIT_COMPARISON_LE,
|
|
|
966
|
|
|
967 /* (EXPR_A) > (EXPR_B). */
|
|
|
968 GCC_JIT_COMPARISON_GT,
|
|
|
969
|
|
|
970 /* (EXPR_A) >= (EXPR_B). */
|
|
|
971 GCC_JIT_COMPARISON_GE
|
|
|
972 };
|
|
|
973
|
|
|
974 extern gcc_jit_rvalue *
|
|
|
975 gcc_jit_context_new_comparison (gcc_jit_context *ctxt,
|
|
|
976 gcc_jit_location *loc,
|
|
|
977 enum gcc_jit_comparison op,
|
|
|
978 gcc_jit_rvalue *a, gcc_jit_rvalue *b);
|
|
|
979
|
|
|
980 /* Function calls. */
|
|
|
981
|
|
|
982 /* Call of a specific function. */
|
|
|
983 extern gcc_jit_rvalue *
|
|
|
984 gcc_jit_context_new_call (gcc_jit_context *ctxt,
|
|
|
985 gcc_jit_location *loc,
|
|
|
986 gcc_jit_function *func,
|
|
|
987 int numargs , gcc_jit_rvalue **args);
|
|
|
988
|
|
|
989 /* Call through a function pointer. */
|
|
|
990 extern gcc_jit_rvalue *
|
|
|
991 gcc_jit_context_new_call_through_ptr (gcc_jit_context *ctxt,
|
|
|
992 gcc_jit_location *loc,
|
|
|
993 gcc_jit_rvalue *fn_ptr,
|
|
|
994 int numargs, gcc_jit_rvalue **args);
|
|
|
995
|
|
|
996 /* Type-coercion.
|
|
|
997
|
|
|
998 Currently only a limited set of conversions are possible:
|
|
|
999 int <-> float
|
|
|
1000 int <-> bool */
|
|
|
1001 extern gcc_jit_rvalue *
|
|
|
1002 gcc_jit_context_new_cast (gcc_jit_context *ctxt,
|
|
|
1003 gcc_jit_location *loc,
|
|
|
1004 gcc_jit_rvalue *rvalue,
|
|
|
1005 gcc_jit_type *type);
|
|
|
1006
|
|
|
1007 extern gcc_jit_lvalue *
|
|
|
1008 gcc_jit_context_new_array_access (gcc_jit_context *ctxt,
|
|
|
1009 gcc_jit_location *loc,
|
|
|
1010 gcc_jit_rvalue *ptr,
|
|
|
1011 gcc_jit_rvalue *index);
|
|
|
1012
|
|
|
1013 /* Field access is provided separately for both lvalues and rvalues. */
|
|
|
1014
|
|
|
1015 /* Accessing a field of an lvalue of struct type, analogous to:
|
|
|
1016 (EXPR).field = ...;
|
|
|
1017 in C. */
|
|
|
1018 extern gcc_jit_lvalue *
|
|
|
1019 gcc_jit_lvalue_access_field (gcc_jit_lvalue *struct_or_union,
|
|
|
1020 gcc_jit_location *loc,
|
|
|
1021 gcc_jit_field *field);
|
|
|
1022
|
|
|
1023 /* Accessing a field of an rvalue of struct type, analogous to:
|
|
|
1024 (EXPR).field
|
|
|
1025 in C. */
|
|
|
1026 extern gcc_jit_rvalue *
|
|
|
1027 gcc_jit_rvalue_access_field (gcc_jit_rvalue *struct_or_union,
|
|
|
1028 gcc_jit_location *loc,
|
|
|
1029 gcc_jit_field *field);
|
|
|
1030
|
|
|
1031 /* Accessing a field of an rvalue of pointer type, analogous to:
|
|
|
1032 (EXPR)->field
|
|
|
1033 in C, itself equivalent to (*EXPR).FIELD */
|
|
|
1034 extern gcc_jit_lvalue *
|
|
|
1035 gcc_jit_rvalue_dereference_field (gcc_jit_rvalue *ptr,
|
|
|
1036 gcc_jit_location *loc,
|
|
|
1037 gcc_jit_field *field);
|
|
|
1038
|
|
|
1039 /* Dereferencing a pointer; analogous to:
|
|
|
1040 *(EXPR)
|
|
|
1041 */
|
|
|
1042 extern gcc_jit_lvalue *
|
|
|
1043 gcc_jit_rvalue_dereference (gcc_jit_rvalue *rvalue,
|
|
|
1044 gcc_jit_location *loc);
|
|
|
1045
|
|
|
1046 /* Taking the address of an lvalue; analogous to:
|
|
|
1047 &(EXPR)
|
|
|
1048 in C. */
|
|
|
1049 extern gcc_jit_rvalue *
|
|
|
1050 gcc_jit_lvalue_get_address (gcc_jit_lvalue *lvalue,
|
|
|
1051 gcc_jit_location *loc);
|
|
|
1052
|
|
|
1053 extern gcc_jit_lvalue *
|
|
|
1054 gcc_jit_function_new_local (gcc_jit_function *func,
|
|
|
1055 gcc_jit_location *loc,
|
|
|
1056 gcc_jit_type *type,
|
|
|
1057 const char *name);
|
|
|
1058
|
|
|
1059 /**********************************************************************
|
|
|
1060 Statement-creation.
|
|
|
1061 **********************************************************************/
|
|
|
1062
|
|
|
1063 /* Add evaluation of an rvalue, discarding the result
|
|
|
1064 (e.g. a function call that "returns" void).
|
|
|
1065
|
|
|
1066 This is equivalent to this C code:
|
|
|
1067
|
|
|
1068 (void)expression;
|
|
|
1069 */
|
|
|
1070 extern void
|
|
|
1071 gcc_jit_block_add_eval (gcc_jit_block *block,
|
|
|
1072 gcc_jit_location *loc,
|
|
|
1073 gcc_jit_rvalue *rvalue);
|
|
|
1074
|
|
|
1075 /* Add evaluation of an rvalue, assigning the result to the given
|
|
|
1076 lvalue.
|
|
|
1077
|
|
|
1078 This is roughly equivalent to this C code:
|
|
|
1079
|
|
|
1080 lvalue = rvalue;
|
|
|
1081 */
|
|
|
1082 extern void
|
|
|
1083 gcc_jit_block_add_assignment (gcc_jit_block *block,
|
|
|
1084 gcc_jit_location *loc,
|
|
|
1085 gcc_jit_lvalue *lvalue,
|
|
|
1086 gcc_jit_rvalue *rvalue);
|
|
|
1087
|
|
|
1088 /* Add evaluation of an rvalue, using the result to modify an
|
|
|
1089 lvalue.
|
|
|
1090
|
|
|
1091 This is analogous to "+=" and friends:
|
|
|
1092
|
|
|
1093 lvalue += rvalue;
|
|
|
1094 lvalue *= rvalue;
|
|
|
1095 lvalue /= rvalue;
|
|
|
1096 etc */
|
|
|
1097 extern void
|
|
|
1098 gcc_jit_block_add_assignment_op (gcc_jit_block *block,
|
|
|
1099 gcc_jit_location *loc,
|
|
|
1100 gcc_jit_lvalue *lvalue,
|
|
|
1101 enum gcc_jit_binary_op op,
|
|
|
1102 gcc_jit_rvalue *rvalue);
|
|
|
1103
|
|
|
1104 /* Add a no-op textual comment to the internal representation of the
|
|
|
1105 code. It will be optimized away, but will be visible in the dumps
|
|
|
1106 seen via
|
|
|
1107 GCC_JIT_BOOL_OPTION_DUMP_INITIAL_TREE
|
|
|
1108 and
|
|
|
1109 GCC_JIT_BOOL_OPTION_DUMP_INITIAL_GIMPLE,
|
|
|
1110 and thus may be of use when debugging how your project's internal
|
|
|
1111 representation gets converted to the libgccjit IR. */
|
|
|
1112 extern void
|
|
|
1113 gcc_jit_block_add_comment (gcc_jit_block *block,
|
|
|
1114 gcc_jit_location *loc,
|
|
|
1115 const char *text);
|
|
|
1116
|
|
|
1117 /* Terminate a block by adding evaluation of an rvalue, branching on the
|
|
|
1118 result to the appropriate successor block.
|
|
|
1119
|
|
|
1120 This is roughly equivalent to this C code:
|
|
|
1121
|
|
|
1122 if (boolval)
|
|
|
1123 goto on_true;
|
|
|
1124 else
|
|
|
1125 goto on_false;
|
|
|
1126
|
|
|
1127 block, boolval, on_true, and on_false must be non-NULL. */
|
|
|
1128 extern void
|
|
|
1129 gcc_jit_block_end_with_conditional (gcc_jit_block *block,
|
|
|
1130 gcc_jit_location *loc,
|
|
|
1131 gcc_jit_rvalue *boolval,
|
|
|
1132 gcc_jit_block *on_true,
|
|
|
1133 gcc_jit_block *on_false);
|
|
|
1134
|
|
|
1135 /* Terminate a block by adding a jump to the given target block.
|
|
|
1136
|
|
|
1137 This is roughly equivalent to this C code:
|
|
|
1138
|
|
|
1139 goto target;
|
|
|
1140 */
|
|
|
1141 extern void
|
|
|
1142 gcc_jit_block_end_with_jump (gcc_jit_block *block,
|
|
|
1143 gcc_jit_location *loc,
|
|
|
1144 gcc_jit_block *target);
|
|
|
1145
|
|
|
1146 /* Terminate a block by adding evaluation of an rvalue, returning the value.
|
|
|
1147
|
|
|
1148 This is roughly equivalent to this C code:
|
|
|
1149
|
|
|
1150 return expression;
|
|
|
1151 */
|
|
|
1152 extern void
|
|
|
1153 gcc_jit_block_end_with_return (gcc_jit_block *block,
|
|
|
1154 gcc_jit_location *loc,
|
|
|
1155 gcc_jit_rvalue *rvalue);
|
|
|
1156
|
|
|
1157 /* Terminate a block by adding a valueless return, for use within a function
|
|
|
1158 with "void" return type.
|
|
|
1159
|
|
|
1160 This is equivalent to this C code:
|
|
|
1161
|
|
|
1162 return;
|
|
|
1163 */
|
|
|
1164 extern void
|
|
|
1165 gcc_jit_block_end_with_void_return (gcc_jit_block *block,
|
|
|
1166 gcc_jit_location *loc);
|
|
|
1167
|
|
|
1168 /* Create a new gcc_jit_case instance for use in a switch statement.
|
|
|
1169 min_value and max_value must be constants of integer type.
|
|
|
1170
|
|
|
1171 This API entrypoint was added in LIBGCCJIT_ABI_3; you can test for its
|
|
|
1172 presence using
|
|
|
1173 #ifdef LIBGCCJIT_HAVE_SWITCH_STATEMENTS
|
|
|
1174 */
|
|
|
1175 extern gcc_jit_case *
|
|
|
1176 gcc_jit_context_new_case (gcc_jit_context *ctxt,
|
|
|
1177 gcc_jit_rvalue *min_value,
|
|
|
1178 gcc_jit_rvalue *max_value,
|
|
|
1179 gcc_jit_block *dest_block);
|
|
|
1180
|
|
|
1181 /* Upcasting from case to object.
|
|
|
1182
|
|
|
1183 This API entrypoint was added in LIBGCCJIT_ABI_3; you can test for its
|
|
|
1184 presence using
|
|
|
1185 #ifdef LIBGCCJIT_HAVE_SWITCH_STATEMENTS
|
|
|
1186 */
|
|
|
1187
|
|
|
1188 extern gcc_jit_object *
|
|
|
1189 gcc_jit_case_as_object (gcc_jit_case *case_);
|
|
|
1190
|
|
|
1191 /* Terminate a block by adding evalation of an rvalue, then performing
|
|
|
1192 a multiway branch.
|
|
|
1193
|
|
|
1194 This is roughly equivalent to this C code:
|
|
|
1195
|
|
|
1196 switch (expr)
|
|
|
1197 {
|
|
|
1198 default:
|
|
|
1199 goto default_block;
|
|
|
1200
|
|
|
1201 case C0.min_value ... C0.max_value:
|
|
|
1202 goto C0.dest_block;
|
|
|
1203
|
|
|
1204 case C1.min_value ... C1.max_value:
|
|
|
1205 goto C1.dest_block;
|
|
|
1206
|
|
|
1207 ...etc...
|
|
|
1208
|
|
|
1209 case C[N - 1].min_value ... C[N - 1].max_value:
|
|
|
1210 goto C[N - 1].dest_block;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 block, expr, default_block and cases must all be non-NULL.
|
|
|
1214
|
|
|
1215 expr must be of the same integer type as all of the min_value
|
|
|
1216 and max_value within the cases.
|
|
|
1217
|
|
|
1218 num_cases must be >= 0.
|
|
|
1219
|
|
|
1220 The ranges of the cases must not overlap (or have duplicate
|
|
|
1221 values).
|
|
|
1222
|
|
|
1223 This API entrypoint was added in LIBGCCJIT_ABI_3; you can test for its
|
|
|
1224 presence using
|
|
|
1225 #ifdef LIBGCCJIT_HAVE_SWITCH_STATEMENTS
|
|
|
1226 */
|
|
|
1227
|
|
|
1228 extern void
|
|
|
1229 gcc_jit_block_end_with_switch (gcc_jit_block *block,
|
|
|
1230 gcc_jit_location *loc,
|
|
|
1231 gcc_jit_rvalue *expr,
|
|
|
1232 gcc_jit_block *default_block,
|
|
|
1233 int num_cases,
|
|
|
1234 gcc_jit_case **cases);
|
|
|
1235
|
|
|
1236 /* Pre-canned feature macro to indicate the presence of
|
|
|
1237 gcc_jit_block_end_with_switch, gcc_jit_case_as_object, and
|
|
|
1238 gcc_jit_context_new_case.
|
|
|
1239
|
|
|
1240 This can be tested for with #ifdef. */
|
|
|
1241 #define LIBGCCJIT_HAVE_SWITCH_STATEMENTS
|
|
|
1242
|
|
|
1243 /**********************************************************************
|
|
|
1244 Nested contexts.
|
|
|
1245 **********************************************************************/
|
|
|
1246
|
|
|
1247 /* Given an existing JIT context, create a child context.
|
|
|
1248
|
|
|
1249 The child inherits a copy of all option-settings from the parent.
|
|
|
1250
|
|
|
1251 The child can reference objects created within the parent, but not
|
|
|
1252 vice-versa.
|
|
|
1253
|
|
|
1254 The lifetime of the child context must be bounded by that of the
|
|
|
1255 parent: you should release a child context before releasing the parent
|
|
|
1256 context.
|
|
|
1257
|
|
|
1258 If you use a function from a parent context within a child context,
|
|
|
1259 you have to compile the parent context before you can compile the
|
|
|
1260 child context, and the gcc_jit_result of the parent context must
|
|
|
1261 outlive the gcc_jit_result of the child context.
|
|
|
1262
|
|
|
1263 This allows caching of shared initializations. For example, you could
|
|
|
1264 create types and declarations of global functions in a parent context
|
|
|
1265 once within a process, and then create child contexts whenever a
|
|
|
1266 function or loop becomes hot. Each such child context can be used for
|
|
|
1267 JIT-compiling just one function or loop, but can reference types
|
|
|
1268 and helper functions created within the parent context.
|
|
|
1269
|
|
|
1270 Contexts can be arbitrarily nested, provided the above rules are
|
|
|
1271 followed, but it's probably not worth going above 2 or 3 levels, and
|
|
|
1272 there will likely be a performance hit for such nesting. */
|
|
|
1273
|
|
|
1274 extern gcc_jit_context *
|
|
|
1275 gcc_jit_context_new_child_context (gcc_jit_context *parent_ctxt);
|
|
|
1276
|
|
|
1277 /**********************************************************************
|
|
|
1278 Implementation support.
|
|
|
1279 **********************************************************************/
|
|
|
1280
|
|
|
1281 /* Write C source code into "path" that can be compiled into a
|
|
|
1282 self-contained executable (i.e. with libgccjit as the only dependency).
|
|
|
1283 The generated code will attempt to replay the API calls that have been
|
|
|
1284 made into the given context.
|
|
|
1285
|
|
|
1286 This may be useful when debugging the library or client code, for
|
|
|
1287 reducing a complicated recipe for reproducing a bug into a simpler
|
|
|
1288 form.
|
|
|
1289
|
|
|
1290 Typically you need to supply the option "-Wno-unused-variable" when
|
|
|
1291 compiling the generated file (since the result of each API call is
|
|
|
1292 assigned to a unique variable within the generated C source, and not
|
|
|
1293 all are necessarily then used). */
|
|
|
1294
|
|
|
1295 extern void
|
|
|
1296 gcc_jit_context_dump_reproducer_to_file (gcc_jit_context *ctxt,
|
|
|
1297 const char *path);
|
|
|
1298
|
|
|
1299 /* Enable the dumping of a specific set of internal state from the
|
|
|
1300 compilation, capturing the result in-memory as a buffer.
|
|
|
1301
|
|
|
1302 Parameter "dumpname" corresponds to the equivalent gcc command-line
|
|
|
1303 option, without the "-fdump-" prefix.
|
|
|
1304 For example, to get the equivalent of "-fdump-tree-vrp1", supply
|
|
|
1305 "tree-vrp1".
|
|
|
1306 The context directly stores the dumpname as a (const char *), so the
|
|
|
1307 passed string must outlive the context.
|
|
|
1308
|
|
|
1309 gcc_jit_context_compile and gcc_jit_context_to_file
|
|
|
1310 will capture the dump as a dynamically-allocated buffer, writing
|
|
|
1311 it to ``*out_ptr``.
|
|
|
1312
|
|
|
1313 The caller becomes responsible for calling
|
|
|
1314 free (*out_ptr)
|
|
|
1315 each time that gcc_jit_context_compile or gcc_jit_context_to_file
|
|
|
1316 are called. *out_ptr will be written to, either with the address of a
|
|
|
1317 buffer, or with NULL if an error occurred.
|
|
|
1318
|
|
|
1319 This API entrypoint is likely to be less stable than the others.
|
|
|
1320 In particular, both the precise dumpnames, and the format and content
|
|
|
1321 of the dumps are subject to change.
|
|
|
1322
|
|
|
1323 It exists primarily for writing the library's own test suite. */
|
|
|
1324
|
|
|
1325 extern void
|
|
|
1326 gcc_jit_context_enable_dump (gcc_jit_context *ctxt,
|
|
|
1327 const char *dumpname,
|
|
|
1328 char **out_ptr);
|
|
|
1329
|
|
|
1330 /**********************************************************************
|
|
|
1331 Timing support.
|
|
|
1332 **********************************************************************/
|
|
|
1333
|
|
|
1334 /* The timing API was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1335 presence using
|
|
|
1336 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1337 */
|
|
|
1338 #define LIBGCCJIT_HAVE_TIMING_API
|
|
|
1339
|
|
|
1340 typedef struct gcc_jit_timer gcc_jit_timer;
|
|
|
1341
|
|
|
1342 /* Create a gcc_jit_timer instance, and start timing.
|
|
|
1343
|
|
|
1344 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1345 presence using
|
|
|
1346 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1347 */
|
|
|
1348 extern gcc_jit_timer *
|
|
|
1349 gcc_jit_timer_new (void);
|
|
|
1350
|
|
|
1351 /* Release a gcc_jit_timer instance.
|
|
|
1352
|
|
|
1353 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1354 presence using
|
|
|
1355 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1356 */
|
|
|
1357 extern void
|
|
|
1358 gcc_jit_timer_release (gcc_jit_timer *timer);
|
|
|
1359
|
|
|
1360 /* Associate a gcc_jit_timer instance with a context.
|
|
|
1361
|
|
|
1362 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1363 presence using
|
|
|
1364 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1365 */
|
|
|
1366 extern void
|
|
|
1367 gcc_jit_context_set_timer (gcc_jit_context *ctxt,
|
|
|
1368 gcc_jit_timer *timer);
|
|
|
1369
|
|
|
1370 /* Get the timer associated with a context (if any).
|
|
|
1371
|
|
|
1372 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1373 presence using
|
|
|
1374 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1375 */
|
|
|
1376
|
|
|
1377 extern gcc_jit_timer *
|
|
|
1378 gcc_jit_context_get_timer (gcc_jit_context *ctxt);
|
|
|
1379
|
|
|
1380 /* Push the given item onto the timing stack.
|
|
|
1381
|
|
|
1382 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1383 presence using
|
|
|
1384 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1385 */
|
|
|
1386
|
|
|
1387 extern void
|
|
|
1388 gcc_jit_timer_push (gcc_jit_timer *timer,
|
|
|
1389 const char *item_name);
|
|
|
1390
|
|
|
1391 /* Pop the top item from the timing stack.
|
|
|
1392
|
|
|
1393 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1394 presence using
|
|
|
1395 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1396 */
|
|
|
1397
|
|
|
1398 extern void
|
|
|
1399 gcc_jit_timer_pop (gcc_jit_timer *timer,
|
|
|
1400 const char *item_name);
|
|
|
1401
|
|
|
1402 /* Print timing information to the given stream about activity since
|
|
|
1403 the timer was started.
|
|
|
1404
|
|
|
1405 This API entrypoint was added in LIBGCCJIT_ABI_4; you can test for its
|
|
|
1406 presence using
|
|
|
1407 #ifdef LIBGCCJIT_HAVE_TIMING_API
|
|
|
1408 */
|
|
|
1409
|
|
|
1410 extern void
|
|
|
1411 gcc_jit_timer_print (gcc_jit_timer *timer,
|
|
|
1412 FILE *f_out);
|
|
|
1413
|
|
|
1414
|
|
|
1415 #define LIBGCCJIT_HAVE_gcc_jit_rvalue_set_bool_require_tail_call
|
|
|
1416
|
|
|
1417 /* Mark/clear a call as needing tail-call optimization.
|
|
|
1418
|
|
|
1419 This API entrypoint was added in LIBGCCJIT_ABI_6; you can test for its
|
|
|
1420 presence using
|
|
|
1421 #ifdef LIBGCCJIT_HAVE_gcc_jit_rvalue_set_bool_require_tail_call
|
|
|
1422 */
|
|
|
1423 extern void
|
|
|
1424 gcc_jit_rvalue_set_bool_require_tail_call (gcc_jit_rvalue *call,
|
|
|
1425 int require_tail_call);
|
|
|
1426
|
|
|
1427 #define LIBGCCJIT_HAVE_gcc_jit_type_get_aligned
|
|
|
1428
|
|
|
1429 /* Given type "T", get type:
|
|
|
1430
|
|
|
1431 T __attribute__ ((aligned (ALIGNMENT_IN_BYTES)))
|
|
|
1432
|
|
|
1433 The alignment must be a power of two.
|
|
|
1434
|
|
|
1435 This API entrypoint was added in LIBGCCJIT_ABI_7; you can test for its
|
|
|
1436 presence using
|
|
|
1437 #ifdef LIBGCCJIT_HAVE_gcc_jit_type_get_aligned
|
|
|
1438 */
|
|
|
1439 extern gcc_jit_type *
|
|
|
1440 gcc_jit_type_get_aligned (gcc_jit_type *type,
|
|
|
1441 size_t alignment_in_bytes);
|
|
|
1442
|
|
|
1443 #define LIBGCCJIT_HAVE_gcc_jit_type_get_vector
|
|
|
1444
|
|
|
1445 /* Given type "T", get type:
|
|
|
1446
|
|
|
1447 T __attribute__ ((vector_size (sizeof(T) * num_units))
|
|
|
1448
|
|
|
1449 T must be integral/floating point; num_units must be a power of two.
|
|
|
1450
|
|
|
1451 This API entrypoint was added in LIBGCCJIT_ABI_8; you can test for its
|
|
|
1452 presence using
|
|
|
1453 #ifdef LIBGCCJIT_HAVE_gcc_jit_type_get_vector
|
|
|
1454 */
|
|
|
1455 extern gcc_jit_type *
|
|
|
1456 gcc_jit_type_get_vector (gcc_jit_type *type, size_t num_units);
|
|
|
1457
|
|
|
1458
|
|
|
1459 #define LIBGCCJIT_HAVE_gcc_jit_function_get_address
|
|
|
1460
|
|
|
1461 /* Get the address of a function as an rvalue, of function pointer
|
|
|
1462 type.
|
|
|
1463
|
|
|
1464 This API entrypoint was added in LIBGCCJIT_ABI_9; you can test for its
|
|
|
1465 presence using
|
|
|
1466 #ifdef LIBGCCJIT_HAVE_gcc_jit_function_get_address
|
|
|
1467 */
|
|
|
1468 extern gcc_jit_rvalue *
|
|
|
1469 gcc_jit_function_get_address (gcc_jit_function *fn,
|
|
|
1470 gcc_jit_location *loc);
|
|
|
1471
|
|
|
1472
|
|
|
1473 #define LIBGCCJIT_HAVE_gcc_jit_context_new_rvalue_from_vector
|
|
|
1474
|
|
|
1475 /* Build a vector rvalue from an array of elements.
|
|
|
1476
|
|
|
1477 "vec_type" should be a vector type, created using gcc_jit_type_get_vector.
|
|
|
1478
|
|
|
1479 This API entrypoint was added in LIBGCCJIT_ABI_10; you can test for its
|
|
|
1480 presence using
|
|
|
1481 #ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_rvalue_from_vector
|
|
|
1482 */
|
|
|
1483 extern gcc_jit_rvalue *
|
|
|
1484 gcc_jit_context_new_rvalue_from_vector (gcc_jit_context *ctxt,
|
|
|
1485 gcc_jit_location *loc,
|
|
|
1486 gcc_jit_type *vec_type,
|
|
|
1487 size_t num_elements,
|
|
|
1488 gcc_jit_rvalue **elements);
|
|
|
1489
|
|
|
1490 #ifdef __cplusplus
|
|
|
1491 }
|
|
|
1492 #endif /* __cplusplus */
|
|
|
1493
|
|
|
1494 #endif /* LIBGCCJIT_H */
|
