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annotate libinterp/corefcn/pt-jit.h @ 18189:d638db6d045c stable

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doc: Note that dbstop can be used with class methods as well (bug #40958). * debug.txi: Note that dbstop can be used with class methods as well (bug #40958).
author Rik <rik@octave.org>
date Wed, 01 Jan 2014 18:24:55 -0800
parents ebb3ef964372
children 97e49b588f5d
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1 /*
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2
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3 Copyright (C) 2012-2013 Max Brister
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY 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 Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 // Author: Max Brister <max@2bass.com>
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24
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25 #if !defined (octave_pt_jit_h)
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26 #define octave_pt_jit_h 1
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27
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28 #ifdef HAVE_LLVM
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29
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30 #include "jit-ir.h"
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31 #include "pt-walk.h"
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32 #include "symtab.h"
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33
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34 class octave_value_list;
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35
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36 // Convert from the parse tree (AST) to the low level Octave IR.
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37 class
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38 jit_convert : public tree_walker
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39 {
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40 public:
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41 typedef std::pair<jit_type *, std::string> type_bound;
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42 typedef std::vector<type_bound> type_bound_vector;
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43 typedef std::map<std::string, jit_variable *> variable_map;
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44
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45 jit_convert (tree &tee, jit_type *for_bounds = 0);
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46
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47 jit_convert (octave_user_function& fcn, const std::vector<jit_type *>& args);
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48
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49 #define DECL_ARG(n) const ARG ## n& arg ## n
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50 #define JIT_CREATE_CHECKED(N) \
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51 template <OCT_MAKE_DECL_LIST (typename, ARG, N)> \
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52 jit_call *create_checked (OCT_MAKE_LIST (DECL_ARG, N)) \
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53 { \
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54 jit_call *ret = factory.create<jit_call> (OCT_MAKE_ARG_LIST (arg, N)); \
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55 return create_checked_impl (ret); \
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56 }
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57
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58 JIT_CREATE_CHECKED (1)
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59 JIT_CREATE_CHECKED (2)
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60 JIT_CREATE_CHECKED (3)
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61 JIT_CREATE_CHECKED (4)
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62
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63 #undef JIT_CREATE_CHECKED
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64 #undef DECL_ARG
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65
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66 jit_block_list& get_blocks (void) { return blocks; }
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67
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68 const type_bound_vector& get_bounds (void) const { return bounds; }
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69
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70 jit_factory& get_factory (void) { return factory; }
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71
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72 llvm::Function *get_function (void) const { return function; }
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73
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74 const variable_map &get_variable_map (void) const { return vmap; }
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75
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76 void visit_anon_fcn_handle (tree_anon_fcn_handle&);
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77
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78 void visit_argument_list (tree_argument_list&);
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79
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80 void visit_binary_expression (tree_binary_expression&);
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81
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82 void visit_break_command (tree_break_command&);
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83
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84 void visit_colon_expression (tree_colon_expression&);
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85
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86 void visit_continue_command (tree_continue_command&);
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87
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88 void visit_global_command (tree_global_command&);
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89
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90 void visit_persistent_command (tree_persistent_command&);
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91
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92 void visit_decl_elt (tree_decl_elt&);
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93
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94 void visit_decl_init_list (tree_decl_init_list&);
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95
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96 void visit_simple_for_command (tree_simple_for_command&);
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97
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98 void visit_complex_for_command (tree_complex_for_command&);
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99
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100 void visit_octave_user_script (octave_user_script&);
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101
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102 void visit_octave_user_function (octave_user_function&);
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103
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104 void visit_octave_user_function_header (octave_user_function&);
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105
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106 void visit_octave_user_function_trailer (octave_user_function&);
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107
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108 void visit_function_def (tree_function_def&);
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109
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110 void visit_identifier (tree_identifier&);
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111
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112 void visit_if_clause (tree_if_clause&);
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113
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114 void visit_if_command (tree_if_command&);
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115
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116 void visit_if_command_list (tree_if_command_list&);
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117
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118 void visit_index_expression (tree_index_expression&);
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119
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120 void visit_matrix (tree_matrix&);
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121
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122 void visit_cell (tree_cell&);
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123
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124 void visit_multi_assignment (tree_multi_assignment&);
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125
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126 void visit_no_op_command (tree_no_op_command&);
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127
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128 void visit_constant (tree_constant&);
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129
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130 void visit_fcn_handle (tree_fcn_handle&);
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131
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132 void visit_parameter_list (tree_parameter_list&);
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133
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134 void visit_postfix_expression (tree_postfix_expression&);
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135
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136 void visit_prefix_expression (tree_prefix_expression&);
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137
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138 void visit_return_command (tree_return_command&);
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139
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140 void visit_return_list (tree_return_list&);
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141
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142 void visit_simple_assignment (tree_simple_assignment&);
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143
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144 void visit_statement (tree_statement&);
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145
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146 void visit_statement_list (tree_statement_list&);
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147
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148 void visit_switch_case (tree_switch_case&);
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149
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diff changeset
150 void visit_switch_case_list (tree_switch_case_list&);
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151
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152 void visit_switch_command (tree_switch_command&);
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153
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154 void visit_try_catch_command (tree_try_catch_command&);
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155
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156 void visit_unwind_protect_command (tree_unwind_protect_command&);
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157
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diff changeset
158 void visit_while_command (tree_while_command&);
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159
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160 void visit_do_until_command (tree_do_until_command&);
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161 private:
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162 std::vector<std::pair<std::string, bool> > arguments;
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163 type_bound_vector bounds;
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164
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165 bool converting_function;
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166
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167 // the scope of the function we are converting, or the current scope
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168 symbol_table::scope_id scope;
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169
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170 jit_factory factory;
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171
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172 // used instead of return values from visit_* functions
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173 jit_value *result;
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174
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175 jit_block *entry_block;
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176
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177 jit_block *final_block;
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178
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179 jit_block *block;
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180
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181 llvm::Function *function;
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182
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183 jit_block_list blocks;
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184
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185 std::vector<jit_magic_end::context> end_context;
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186
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187 size_t iterator_count;
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188 size_t for_bounds_count;
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189 size_t short_count;
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190
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191 variable_map vmap;
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192
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193 void initialize (symbol_table::scope_id s);
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194
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195 jit_call *create_checked_impl (jit_call *ret);
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196
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197 // get an existing vairable. If the variable does not exist, it will not be
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198 // created
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199 jit_variable *find_variable (const std::string& vname) const;
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200
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201 // get a variable, create it if it does not exist. The type will default to
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202 // the variable's current type in the symbol table.
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203 jit_variable *get_variable (const std::string& vname);
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204
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205 // create a variable of the given name and given type. Will also insert an
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206 // extract statement
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207 jit_variable *create_variable (const std::string& vname, jit_type *type,
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208 bool isarg = true);
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209
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210 // The name of the next for loop iterator. If inc is false, then the iterator
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211 // counter will not be incremented.
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212 std::string next_iterator (bool inc = true)
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213 { return next_name ("#iter", iterator_count, inc); }
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214
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215 std::string next_for_bounds (bool inc = true)
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216 { return next_name ("#for_bounds", for_bounds_count, inc); }
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217
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218 std::string next_shortcircut_result (bool inc = true)
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219 { return next_name ("#shortcircut_result", short_count, inc); }
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220
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221 std::string next_name (const char *prefix, size_t& count, bool inc);
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222
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223 jit_instruction *resolve (tree_index_expression& exp,
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diff changeset
224 jit_value *extra_arg = 0, bool lhs = false);
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225
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226 jit_value *do_assign (tree_expression *exp, jit_value *rhs,
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227 bool artificial = false);
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228
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229 jit_value *do_assign (const std::string& lhs, jit_value *rhs, bool print,
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230 bool artificial = false);
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231
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232 jit_value *visit (tree *tee) { return visit (*tee); }
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233
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234 jit_value *visit (tree& tee);
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235
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diff changeset
236 typedef std::list<jit_block *> block_list;
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237 block_list breaks;
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238 block_list continues;
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239
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240 void finish_breaks (jit_block *dest, const block_list& lst);
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241 };
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242
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diff changeset
243 // Convert from the low level Octave IR to LLVM
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244 class
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245 jit_convert_llvm : public jit_ir_walker
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246 {
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diff changeset
247 public:
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248 llvm::Function *convert_loop (llvm::Module *module,
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diff changeset
249 const jit_block_list& blocks,
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diff changeset
250 const std::list<jit_value *>& constants);
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251
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diff changeset
252 jit_function convert_function (llvm::Module *module,
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diff changeset
253 const jit_block_list& blocks,
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254 const std::list<jit_value *>& constants,
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diff changeset
255 octave_user_function& fcn,
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diff changeset
256 const std::vector<jit_type *>& args);
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257
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258 // arguments to the llvm::Function for loops
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diff changeset
259 const std::vector<std::pair<std::string, bool> >& get_arguments(void) const
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260 { return argument_vec; }
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diff changeset
261
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diff changeset
262 #define JIT_METH(clname) \
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263 virtual void visit (jit_ ## clname&);
14917
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diff changeset
264
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diff changeset
265 JIT_VISIT_IR_CLASSES;
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diff changeset
266
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267 #undef JIT_METH
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diff changeset
268 private:
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269 // name -> argument index (used for compiling functions)
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diff changeset
270 std::map<std::string, int> argument_index;
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271
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diff changeset
272 std::vector<std::pair<std::string, bool> > argument_vec;
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273
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274 // name -> llvm argument (used for compiling loops)
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diff changeset
275 std::map<std::string, llvm::Value *> arguments;
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276
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diff changeset
277 bool converting_function;
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diff changeset
278
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279 // only used if we are converting a function
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diff changeset
280 jit_function creating;
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diff changeset
281
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diff changeset
282 llvm::Function *function;
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diff changeset
283 llvm::BasicBlock *prelude;
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diff changeset
284
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diff changeset
285 void convert (const jit_block_list& blocks,
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diff changeset
286 const std::list<jit_value *>& constants);
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diff changeset
287
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diff changeset
288 void finish_phi (jit_phi *phi);
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289
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diff changeset
290 void visit (jit_value *jvalue)
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diff changeset
291 {
ed2b911a2fb3 Rename jit_convert::convert_llvm to jit_convert_llvm
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292 return visit (*jvalue);
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293 }
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294
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295 void visit (jit_value &jvalue)
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296 {
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297 jvalue.accept (*this);
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298 }
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299 };
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300
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301 // type inference and SSA construction on the low level Octave IR
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302 class
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303 jit_infer
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304 {
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305 public:
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306 typedef jit_convert::variable_map variable_map;
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307
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308 jit_infer (jit_factory& afactory, jit_block_list& ablocks,
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309 const variable_map& avmap);
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310
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311 jit_block_list& get_blocks (void) const { return blocks; }
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312
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313 jit_factory& get_factory (void) const { return factory; }
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314
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315 void infer (void);
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316 private:
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317 jit_block_list& blocks;
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318 jit_factory& factory;
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319 const variable_map& vmap;
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320 std::list<jit_instruction *> worklist;
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321
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322 void append_users (jit_value *v);
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323
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324 void append_users_term (jit_terminator *term);
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325
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326 void construct_ssa (void);
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327
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328 void do_construct_ssa (jit_block& block, size_t avisit_count);
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329
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330 jit_block& entry_block (void) { return *blocks.front (); }
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331
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332 jit_block& final_block (void) { return *blocks.back (); }
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333
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334 void place_releases (void);
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335
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336 void push_worklist (jit_instruction *instr);
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337
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338 void remove_dead ();
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339
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340 void release_dead_phi (jit_block& ablock);
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341
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342 void release_temp (jit_block& ablock, std::set<jit_value *>& temp);
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343
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344 void simplify_phi (void);
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345
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346 void simplify_phi (jit_phi& phi);
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347 };
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348
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349 class
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350 tree_jit
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351 {
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352 public:
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353 ~tree_jit (void);
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354
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355 static bool execute (tree_simple_for_command& cmd,
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356 const octave_value& bounds);
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357
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358 static bool execute (tree_while_command& cmd);
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359
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360 static bool execute (octave_user_function& fcn, const octave_value_list& args,
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361 octave_value_list& retval);
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362
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363 llvm::ExecutionEngine *get_engine (void) const { return engine; }
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364
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365 llvm::Module *get_module (void) const { return module; }
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366
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367 void optimize (llvm::Function *fn);
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368 private:
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369 tree_jit (void);
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370
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371 static tree_jit& instance (void);
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372
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373 bool initialize (void);
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374
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375 bool do_execute (tree_simple_for_command& cmd, const octave_value& bounds);
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376
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377 bool do_execute (tree_while_command& cmd);
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378
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379 bool do_execute (octave_user_function& fcn, const octave_value_list& args,
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380 octave_value_list& retval);
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381
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382 bool enabled (void);
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383
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384 size_t trip_count (const octave_value& bounds) const;
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385
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386 llvm::Module *module;
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387 llvm::PassManager *module_pass_manager;
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388 llvm::FunctionPassManager *pass_manager;
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389 llvm::ExecutionEngine *engine;
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390 };
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391
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392 class
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393 jit_function_info
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394 {
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395 public:
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396 jit_function_info (tree_jit& tjit, octave_user_function& fcn,
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397 const octave_value_list& ov_args);
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398
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399 bool execute (const octave_value_list& ov_args,
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400 octave_value_list& retval) const;
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401
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402 bool match (const octave_value_list& ov_args) const;
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403 private:
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404 typedef octave_base_value *(*jited_function)(octave_base_value**);
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405
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406 std::vector<jit_type *> argument_types;
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407 jited_function function;
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408 };
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409
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410 class
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411 jit_info
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412 {
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413 public:
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414 // we use a pointer here so we don't have to include ov.h
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415 typedef std::map<std::string, const octave_value *> vmap;
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416
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417 jit_info (tree_jit& tjit, tree& tee);
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418
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419 jit_info (tree_jit& tjit, tree& tee, const octave_value& for_bounds);
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420
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421 ~jit_info (void);
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422
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423 bool execute (const vmap& extra_vars = vmap ()) const;
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424
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425 bool match (const vmap& extra_vars = vmap ()) const;
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426 private:
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427 typedef jit_convert::type_bound type_bound;
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428 typedef jit_convert::type_bound_vector type_bound_vector;
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429 typedef void (*jited_function)(octave_base_value**);
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430
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431 void compile (tree_jit& tjit, tree& tee, jit_type *for_bounds = 0);
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432
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433 octave_value find (const vmap& extra_vars, const std::string& vname) const;
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434
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435 llvm::ExecutionEngine *engine;
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436 jited_function function;
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437 llvm::Function *llvm_function;
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438
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439 std::vector<std::pair<std::string, bool> > arguments;
232d8ab07932 Rewrite pt-jit.* adding new low level octave IR
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440 type_bound_vector bounds;
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441 };
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442
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443 #endif
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1f914446157d Locate and link with LLVM properly
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444 #endif