Mercurial > octave-nkf
annotate libinterp/corefcn/jit-ir.h @ 18600:67445219aee2 draft
-Werror at JIT related files
| author | LYH <lyh.kernel@gmail.com> |
|---|---|
| date | Fri, 21 Mar 2014 14:59:39 -0400 |
| parents | 175b392e91fe |
| children |
| rev | line source |
|---|---|
| 18600 | 1 #pragma GCC diagnostic push |
| 2 #pragma GCC diagnostic error "-Werror" | |
| 15016 | 3 /* |
| 4 | |
|
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5 Copyright (C) 2012-2013 Max Brister |
| 15016 | 6 |
| 7 This file is part of Octave. | |
| 8 | |
| 9 Octave is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 11 Free Software Foundation; either version 3 of the License, or (at your | |
| 12 option) any later version. | |
| 13 | |
| 14 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with Octave; see the file COPYING. If not, see | |
| 21 <http://www.gnu.org/licenses/>. | |
| 22 | |
| 23 */ | |
| 24 | |
| 16768 | 25 // Author: Max Brister <max@2bass.com> |
| 26 | |
| 15016 | 27 #if !defined (octave_jit_ir_h) |
| 28 #define octave_jit_ir_h 1 | |
| 29 | |
| 30 #ifdef HAVE_LLVM | |
| 31 | |
| 32 #include <list> | |
| 33 #include <stack> | |
| 34 #include <set> | |
| 35 | |
| 36 #include "jit-typeinfo.h" | |
| 37 | |
| 38 // The low level octave jit ir | |
| 39 // this ir is close to llvm, but contains information for doing type inference. | |
| 40 // We convert the octave parse tree to this IR directly. | |
| 41 | |
| 42 #define JIT_VISIT_IR_NOTEMPLATE \ | |
| 43 JIT_METH(block); \ | |
| 44 JIT_METH(branch); \ | |
| 45 JIT_METH(cond_branch); \ | |
| 46 JIT_METH(call); \ | |
| 47 JIT_METH(extract_argument); \ | |
| 48 JIT_METH(store_argument); \ | |
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49 JIT_METH(return); \ |
| 15016 | 50 JIT_METH(phi); \ |
| 51 JIT_METH(variable); \ | |
| 52 JIT_METH(error_check); \ | |
| 53 JIT_METH(assign) \ | |
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54 JIT_METH(argument) \ |
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55 JIT_METH(magic_end) |
| 15016 | 56 |
| 57 #define JIT_VISIT_IR_CONST \ | |
| 58 JIT_METH(const_bool); \ | |
| 59 JIT_METH(const_scalar); \ | |
| 60 JIT_METH(const_complex); \ | |
| 61 JIT_METH(const_index); \ | |
| 62 JIT_METH(const_string); \ | |
| 63 JIT_METH(const_range) | |
| 64 | |
| 65 #define JIT_VISIT_IR_CLASSES \ | |
| 66 JIT_VISIT_IR_NOTEMPLATE \ | |
| 67 JIT_VISIT_IR_CONST | |
| 68 | |
| 69 // forward declare all ir classes | |
| 70 #define JIT_METH(cname) \ | |
| 71 class jit_ ## cname; | |
| 72 | |
| 73 JIT_VISIT_IR_NOTEMPLATE | |
| 74 | |
| 75 #undef JIT_METH | |
| 76 | |
| 77 // ABCs which aren't included in JIT_VISIT_IR_ALL | |
| 78 class jit_instruction; | |
| 79 class jit_terminator; | |
| 80 | |
| 81 template <typename T, jit_type *(*EXTRACT_T)(void), typename PASS_T = T, | |
| 82 bool QUOTE=false> | |
| 83 class jit_const; | |
| 84 | |
| 85 typedef jit_const<bool, jit_typeinfo::get_bool> jit_const_bool; | |
| 86 typedef jit_const<double, jit_typeinfo::get_scalar> jit_const_scalar; | |
| 87 typedef jit_const<Complex, jit_typeinfo::get_complex> jit_const_complex; | |
| 88 typedef jit_const<octave_idx_type, jit_typeinfo::get_index> jit_const_index; | |
| 89 | |
| 90 typedef jit_const<std::string, jit_typeinfo::get_string, const std::string&, | |
| 91 true> jit_const_string; | |
| 92 typedef jit_const<jit_range, jit_typeinfo::get_range, const jit_range&> | |
| 93 jit_const_range; | |
| 94 | |
| 95 class jit_ir_walker; | |
| 96 class jit_use; | |
| 97 | |
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98 // Creates and tracks memory for jit_value and subclasses. |
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99 // Memory managment is simple, all values that are created live as long as the |
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100 // factory. |
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101 class |
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102 jit_factory |
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103 { |
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104 typedef std::list<jit_value *> value_list; |
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105 public: |
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106 ~jit_factory (void); |
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107 |
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108 const value_list& constants (void) const { return mconstants; } |
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109 |
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110 template <typename T> |
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111 T *create (void) |
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112 { |
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113 T *ret = new T (); |
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114 track_value (ret); |
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115 return ret; |
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116 } |
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117 |
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118 #define DECL_ARG(n) const ARG ## n& arg ## n |
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119 #define JIT_CREATE(N) \ |
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120 template <typename T, OCT_MAKE_DECL_LIST (typename, ARG, N)> \ |
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121 T *create (OCT_MAKE_LIST (DECL_ARG, N)) \ |
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122 { \ |
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123 T *ret = new T (OCT_MAKE_ARG_LIST (arg, N)); \ |
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124 track_value (ret); \ |
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125 return ret; \ |
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126 } |
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127 |
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128 JIT_CREATE (1) |
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129 JIT_CREATE (2) |
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130 JIT_CREATE (3) |
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131 JIT_CREATE (4) |
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132 |
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133 #undef JIT_CREATE |
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134 #undef DECL_ARG |
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135 private: |
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136 void track_value (jit_value *v); |
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137 |
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138 value_list all_values; |
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139 |
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140 value_list mconstants; |
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141 }; |
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142 |
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143 // A list of basic blocks (jit_block) which form some body of code. |
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144 // |
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145 // We do not directly inherit from std::list because we need to update the |
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146 // blocks stashed location in push_back and insert. |
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147 class |
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148 jit_block_list |
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149 { |
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150 public: |
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151 typedef std::list<jit_block *>::iterator iterator; |
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152 typedef std::list<jit_block *>::const_iterator const_iterator; |
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153 |
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154 jit_block *back (void) const { return mlist.back (); } |
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155 |
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156 iterator begin (void) { return mlist.begin (); } |
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157 |
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158 const_iterator begin (void) const { return mlist.begin (); } |
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159 |
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160 iterator end (void) { return mlist.end (); } |
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161 |
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162 const_iterator end (void) const { return mlist.end (); } |
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163 |
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164 iterator erase (iterator iter) { return mlist.erase (iter); } |
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165 |
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166 jit_block *front (void) const { return mlist.front (); } |
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167 |
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168 void insert_after (iterator iter, jit_block *ablock); |
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169 |
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170 void insert_after (jit_block *loc, jit_block *ablock); |
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171 |
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172 void insert_before (iterator iter, jit_block *ablock); |
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173 |
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174 void insert_before (jit_block *loc, jit_block *ablock); |
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175 |
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176 void label (void); |
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177 |
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178 std::ostream& print (std::ostream& os, const std::string& header) const; |
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179 |
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180 std::ostream& print_dom (std::ostream& os) const; |
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181 |
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182 void push_back (jit_block *b); |
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183 private: |
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184 std::list<jit_block *> mlist; |
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185 }; |
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186 |
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187 std::ostream& operator<<(std::ostream& os, const jit_block_list& blocks); |
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188 |
| 15016 | 189 class |
| 190 jit_value : public jit_internal_list<jit_value, jit_use> | |
| 191 { | |
| 192 public: | |
| 193 jit_value (void) : llvm_value (0), ty (0), mlast_use (0), | |
| 194 min_worklist (false) {} | |
| 195 | |
| 196 virtual ~jit_value (void); | |
| 197 | |
| 198 bool in_worklist (void) const | |
| 199 { | |
| 200 return min_worklist; | |
| 201 } | |
| 202 | |
| 203 void stash_in_worklist (bool ain_worklist) | |
| 204 { | |
| 205 min_worklist = ain_worklist; | |
| 206 } | |
| 207 | |
| 208 // The block of the first use which is not a jit_error_check | |
| 209 // So this is not necessarily first_use ()->parent (). | |
| 210 jit_block *first_use_block (void); | |
| 211 | |
| 212 // replace all uses with | |
| 213 virtual void replace_with (jit_value *value); | |
| 214 | |
| 215 jit_type *type (void) const { return ty; } | |
| 216 | |
| 217 llvm::Type *type_llvm (void) const | |
| 218 { | |
| 219 return ty ? ty->to_llvm () : 0; | |
| 220 } | |
| 221 | |
| 222 const std::string& type_name (void) const | |
| 223 { | |
| 224 return ty->name (); | |
| 225 } | |
| 226 | |
| 227 void stash_type (jit_type *new_ty) { ty = new_ty; } | |
| 228 | |
| 229 std::string print_string (void) | |
| 230 { | |
| 231 std::stringstream ss; | |
| 232 print (ss); | |
| 233 return ss.str (); | |
| 234 } | |
| 235 | |
| 236 jit_instruction *last_use (void) const { return mlast_use; } | |
| 237 | |
| 238 void stash_last_use (jit_instruction *alast_use) | |
| 239 { | |
| 240 mlast_use = alast_use; | |
| 241 } | |
| 242 | |
| 243 virtual bool needs_release (void) const { return false; } | |
| 244 | |
| 245 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const = 0; | |
| 246 | |
| 247 virtual std::ostream& short_print (std::ostream& os) const | |
| 248 { return print (os); } | |
| 249 | |
| 250 virtual void accept (jit_ir_walker& walker) = 0; | |
| 251 | |
| 252 bool has_llvm (void) const | |
| 253 { | |
| 254 return llvm_value; | |
| 255 } | |
| 256 | |
| 257 llvm::Value *to_llvm (void) const | |
| 258 { | |
| 259 assert (llvm_value); | |
| 260 return llvm_value; | |
| 261 } | |
| 262 | |
| 263 void stash_llvm (llvm::Value *compiled) | |
| 264 { | |
| 265 llvm_value = compiled; | |
| 266 } | |
| 267 | |
| 268 protected: | |
| 269 std::ostream& print_indent (std::ostream& os, size_t indent = 0) const | |
| 270 { | |
| 271 for (size_t i = 0; i < indent * 8; ++i) | |
| 272 os << " "; | |
| 273 return os; | |
| 274 } | |
| 275 | |
| 276 llvm::Value *llvm_value; | |
| 277 private: | |
| 278 jit_type *ty; | |
| 279 jit_instruction *mlast_use; | |
| 280 bool min_worklist; | |
| 281 }; | |
| 282 | |
| 283 std::ostream& operator<< (std::ostream& os, const jit_value& value); | |
| 284 std::ostream& jit_print (std::ostream& os, jit_value *avalue); | |
| 285 | |
| 286 class | |
| 287 jit_use : public jit_internal_node<jit_value, jit_use> | |
| 288 { | |
| 289 public: | |
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290 // some compilers don't allow us to use jit_internal_node without template |
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291 // paremeters |
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292 typedef jit_internal_node<jit_value, jit_use> PARENT_T; |
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293 |
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294 jit_use (void) : muser (0), mindex (0) { } |
| 15016 | 295 |
| 296 // we should really have a move operator, but not until c++11 :( | |
| 297 jit_use (const jit_use& use) : muser (0), mindex (0) | |
| 298 { | |
| 299 *this = use; | |
| 300 } | |
| 301 | |
| 302 jit_use& operator= (const jit_use& use) | |
| 303 { | |
| 304 stash_value (use.value (), use.user (), use.index ()); | |
| 305 return *this; | |
| 306 } | |
| 307 | |
| 308 size_t index (void) const { return mindex; } | |
| 309 | |
| 310 jit_instruction *user (void) const { return muser; } | |
| 311 | |
| 312 jit_block *user_parent (void) const; | |
| 313 | |
| 314 std::list<jit_block *> user_parent_location (void) const; | |
| 315 | |
| 316 void stash_value (jit_value *avalue, jit_instruction *auser = 0, | |
| 317 size_t aindex = -1) | |
| 318 { | |
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319 PARENT_T::stash_value (avalue); |
| 15016 | 320 mindex = aindex; |
| 321 muser = auser; | |
| 322 } | |
| 323 private: | |
| 324 jit_instruction *muser; | |
| 325 size_t mindex; | |
| 326 }; | |
| 327 | |
| 328 class | |
| 329 jit_instruction : public jit_value | |
| 330 { | |
| 331 public: | |
| 332 // FIXME: this code could be so much pretier with varadic templates... | |
| 333 jit_instruction (void) : mid (next_id ()), mparent (0) | |
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334 { } |
| 15016 | 335 |
| 336 jit_instruction (size_t nargs) : mid (next_id ()), mparent (0) | |
| 337 { | |
| 338 already_infered.reserve (nargs); | |
| 339 marguments.reserve (nargs); | |
| 340 } | |
| 341 | |
| 342 #define STASH_ARG(i) stash_argument (i, arg ## i); | |
| 343 #define JIT_INSTRUCTION_CTOR(N) \ | |
| 344 jit_instruction (OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 345 : already_infered (N), marguments (N), mid (next_id ()), mparent (0) \ | |
| 346 { \ | |
| 347 OCT_ITERATE_MACRO (STASH_ARG, N); \ | |
| 348 } | |
| 349 | |
| 350 JIT_INSTRUCTION_CTOR(1) | |
| 351 JIT_INSTRUCTION_CTOR(2) | |
| 352 JIT_INSTRUCTION_CTOR(3) | |
| 353 JIT_INSTRUCTION_CTOR(4) | |
| 354 | |
| 355 #undef STASH_ARG | |
| 356 #undef JIT_INSTRUCTION_CTOR | |
| 357 | |
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358 jit_instruction (const std::vector<jit_value *>& aarguments) |
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359 : already_infered (aarguments.size ()), marguments (aarguments.size ()), |
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360 mid (next_id ()), mparent (0) |
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361 { |
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362 for (size_t i = 0; i < aarguments.size (); ++i) |
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363 stash_argument (i, aarguments[i]); |
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364 } |
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365 |
| 15016 | 366 static void reset_ids (void) |
| 367 { | |
| 368 next_id (true); | |
| 369 } | |
| 370 | |
| 371 jit_value *argument (size_t i) const | |
| 372 { | |
| 373 return marguments[i].value (); | |
| 374 } | |
| 375 | |
| 376 llvm::Value *argument_llvm (size_t i) const | |
| 377 { | |
| 378 assert (argument (i)); | |
| 379 return argument (i)->to_llvm (); | |
| 380 } | |
| 381 | |
| 382 jit_type *argument_type (size_t i) const | |
| 383 { | |
| 384 return argument (i)->type (); | |
| 385 } | |
| 386 | |
| 387 llvm::Type *argument_type_llvm (size_t i) const | |
| 388 { | |
| 389 assert (argument (i)); | |
| 390 return argument_type (i)->to_llvm (); | |
| 391 } | |
| 392 | |
| 393 std::ostream& print_argument (std::ostream& os, size_t i) const | |
| 394 { | |
| 395 if (argument (i)) | |
| 396 return argument (i)->short_print (os); | |
| 397 else | |
| 398 return os << "NULL"; | |
| 399 } | |
| 400 | |
| 401 void stash_argument (size_t i, jit_value *arg) | |
| 402 { | |
| 403 marguments[i].stash_value (arg, this, i); | |
| 404 } | |
| 405 | |
| 406 void push_argument (jit_value *arg) | |
| 407 { | |
| 408 marguments.push_back (jit_use ()); | |
| 409 stash_argument (marguments.size () - 1, arg); | |
| 410 already_infered.push_back (0); | |
| 411 } | |
| 412 | |
| 413 size_t argument_count (void) const | |
| 414 { | |
| 415 return marguments.size (); | |
| 416 } | |
| 417 | |
| 418 void resize_arguments (size_t acount, jit_value *adefault = 0) | |
| 419 { | |
| 420 size_t old = marguments.size (); | |
| 421 marguments.resize (acount); | |
| 422 already_infered.resize (acount); | |
| 423 | |
| 424 if (adefault) | |
| 425 for (size_t i = old; i < acount; ++i) | |
| 426 stash_argument (i, adefault); | |
| 427 } | |
| 428 | |
| 429 const std::vector<jit_use>& arguments (void) const { return marguments; } | |
| 430 | |
| 431 // argument types which have been infered already | |
| 432 const std::vector<jit_type *>& argument_types (void) const | |
| 433 { return already_infered; } | |
| 434 | |
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435 virtual void push_variable (void) { } |
| 15016 | 436 |
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437 virtual void pop_variable (void) { } |
| 15016 | 438 |
| 439 virtual void construct_ssa (void) | |
| 440 { | |
| 441 do_construct_ssa (0, argument_count ()); | |
| 442 } | |
| 443 | |
| 444 virtual bool infer (void) { return false; } | |
| 445 | |
| 446 void remove (void); | |
| 447 | |
| 448 virtual std::ostream& short_print (std::ostream& os) const; | |
| 449 | |
| 450 jit_block *parent (void) const { return mparent; } | |
| 451 | |
| 452 std::list<jit_instruction *>::iterator location (void) const | |
| 453 { | |
| 454 return mlocation; | |
| 455 } | |
| 456 | |
| 457 llvm::BasicBlock *parent_llvm (void) const; | |
| 458 | |
| 459 void stash_parent (jit_block *aparent, | |
| 460 std::list<jit_instruction *>::iterator alocation) | |
| 461 { | |
| 462 mparent = aparent; | |
| 463 mlocation = alocation; | |
| 464 } | |
| 465 | |
| 466 size_t id (void) const { return mid; } | |
| 467 protected: | |
| 468 | |
| 469 // Do SSA replacement on arguments in [start, end) | |
| 470 void do_construct_ssa (size_t start, size_t end); | |
| 471 | |
| 472 std::vector<jit_type *> already_infered; | |
| 473 private: | |
| 474 static size_t next_id (bool reset = false) | |
| 475 { | |
| 476 static size_t ret = 0; | |
| 477 if (reset) | |
| 478 return ret = 0; | |
| 479 | |
| 480 return ret++; | |
| 481 } | |
| 482 | |
| 483 std::vector<jit_use> marguments; | |
| 484 | |
| 485 size_t mid; | |
| 486 jit_block *mparent; | |
| 487 std::list<jit_instruction *>::iterator mlocation; | |
| 488 }; | |
| 489 | |
| 490 // defnie accept methods for subclasses | |
| 491 #define JIT_VALUE_ACCEPT \ | |
| 492 virtual void accept (jit_ir_walker& walker); | |
| 493 | |
| 494 // for use as a dummy argument during conversion to LLVM | |
| 495 class | |
| 496 jit_argument : public jit_value | |
| 497 { | |
| 498 public: | |
| 499 jit_argument (jit_type *atype, llvm::Value *avalue) | |
| 500 { | |
| 501 stash_type (atype); | |
| 502 stash_llvm (avalue); | |
| 503 } | |
| 504 | |
| 505 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 506 { | |
| 507 print_indent (os, indent); | |
| 508 return jit_print (os, type ()) << ": DUMMY"; | |
| 509 } | |
| 510 | |
| 511 JIT_VALUE_ACCEPT; | |
| 512 }; | |
| 513 | |
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514 template <typename T, jit_type *(*EXTRACT_T)(void), typename PASS_T, bool QUOTE> |
| 15016 | 515 class |
| 516 jit_const : public jit_value | |
| 517 { | |
| 518 public: | |
| 519 typedef PASS_T pass_t; | |
| 520 | |
| 521 jit_const (PASS_T avalue) : mvalue (avalue) | |
| 522 { | |
| 523 stash_type (EXTRACT_T ()); | |
| 524 } | |
| 525 | |
| 526 PASS_T value (void) const { return mvalue; } | |
| 527 | |
| 528 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 529 { | |
| 530 print_indent (os, indent); | |
| 531 jit_print (os, type ()) << ": "; | |
| 532 if (QUOTE) | |
| 533 os << "\""; | |
| 534 os << mvalue; | |
| 535 if (QUOTE) | |
| 536 os << "\""; | |
| 537 return os; | |
| 538 } | |
| 539 | |
| 540 JIT_VALUE_ACCEPT; | |
| 541 private: | |
| 542 T mvalue; | |
| 543 }; | |
| 544 | |
| 545 class jit_phi_incomming; | |
| 546 | |
| 547 class | |
| 548 jit_block : public jit_value, public jit_internal_list<jit_block, | |
| 549 jit_phi_incomming> | |
| 550 { | |
| 551 typedef jit_internal_list<jit_block, jit_phi_incomming> ILIST_T; | |
| 552 public: | |
| 553 typedef std::list<jit_instruction *> instruction_list; | |
| 554 typedef instruction_list::iterator iterator; | |
| 555 typedef instruction_list::const_iterator const_iterator; | |
| 556 | |
| 557 typedef std::set<jit_block *> df_set; | |
| 558 typedef df_set::const_iterator df_iterator; | |
| 559 | |
| 560 static const size_t NO_ID = static_cast<size_t> (-1); | |
| 561 | |
| 562 jit_block (const std::string& aname, size_t avisit_count = 0) | |
| 563 : mvisit_count (avisit_count), mid (NO_ID), idom (0), mname (aname), | |
| 564 malive (false) | |
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565 { } |
| 15016 | 566 |
| 567 virtual void replace_with (jit_value *value); | |
| 568 | |
| 569 void replace_in_phi (jit_block *ablock, jit_block *with); | |
| 570 | |
| 571 // we have a new internal list, but we want to stay compatable with jit_value | |
| 572 jit_use *first_use (void) const { return jit_value::first_use (); } | |
| 573 | |
| 574 size_t use_count (void) const { return jit_value::use_count (); } | |
| 575 | |
| 576 // if a block is alive, then it might be visited during execution | |
| 577 bool alive (void) const { return malive; } | |
| 578 | |
| 579 void mark_alive (void) { malive = true; } | |
| 580 | |
| 581 // If we can merge with a successor, do so and return the now empty block | |
| 582 jit_block *maybe_merge (); | |
| 583 | |
| 584 // merge another block into this block, leaving the merge block empty | |
| 585 void merge (jit_block& merge); | |
| 586 | |
| 587 const std::string& name (void) const { return mname; } | |
| 588 | |
| 589 jit_instruction *prepend (jit_instruction *instr); | |
| 590 | |
| 591 jit_instruction *prepend_after_phi (jit_instruction *instr); | |
| 592 | |
| 593 template <typename T> | |
| 594 T *append (T *instr) | |
| 595 { | |
| 596 internal_append (instr); | |
| 597 return instr; | |
| 598 } | |
| 599 | |
| 600 jit_instruction *insert_before (iterator loc, jit_instruction *instr); | |
| 601 | |
| 602 jit_instruction *insert_before (jit_instruction *loc, jit_instruction *instr) | |
| 603 { | |
| 604 return insert_before (loc->location (), instr); | |
| 605 } | |
| 606 | |
| 607 jit_instruction *insert_after (iterator loc, jit_instruction *instr); | |
| 608 | |
| 609 jit_instruction *insert_after (jit_instruction *loc, jit_instruction *instr) | |
| 610 { | |
| 611 return insert_after (loc->location (), instr); | |
| 612 } | |
| 613 | |
| 614 iterator remove (iterator iter) | |
| 615 { | |
| 616 jit_instruction *instr = *iter; | |
| 617 iter = instructions.erase (iter); | |
| 618 instr->stash_parent (0, instructions.end ()); | |
| 619 return iter; | |
| 620 } | |
| 621 | |
| 622 jit_terminator *terminator (void) const; | |
| 623 | |
| 624 // is the jump from pred alive? | |
| 625 bool branch_alive (jit_block *asucc) const; | |
| 626 | |
| 627 jit_block *successor (size_t i) const; | |
| 628 | |
| 629 size_t successor_count (void) const; | |
| 630 | |
| 631 iterator begin (void) { return instructions.begin (); } | |
| 632 | |
| 633 const_iterator begin (void) const { return instructions.begin (); } | |
| 634 | |
| 635 iterator end (void) { return instructions.end (); } | |
| 636 | |
| 637 const_iterator end (void) const { return instructions.end (); } | |
| 638 | |
| 639 iterator phi_begin (void); | |
| 640 | |
| 641 iterator phi_end (void); | |
| 642 | |
| 643 iterator nonphi_begin (void); | |
| 644 | |
| 645 // must label before id is valid | |
| 646 size_t id (void) const { return mid; } | |
| 647 | |
| 648 // dominance frontier | |
| 649 const df_set& df (void) const { return mdf; } | |
| 650 | |
| 651 df_iterator df_begin (void) const { return mdf.begin (); } | |
| 652 | |
| 653 df_iterator df_end (void) const { return mdf.end (); } | |
| 654 | |
| 655 // label with a RPO walk | |
| 656 void label (void) | |
| 657 { | |
| 658 size_t number = 0; | |
| 659 label (mvisit_count, number); | |
| 660 } | |
| 661 | |
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662 void label (size_t avisit_count, size_t& number); |
| 15016 | 663 |
| 664 // See for idom computation algorithm | |
| 665 // Cooper, Keith D.; Harvey, Timothy J; and Kennedy, Ken (2001). | |
| 666 // "A Simple, Fast Dominance Algorithm" | |
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667 void compute_idom (jit_block& entry_block) |
| 15016 | 668 { |
| 669 bool changed; | |
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670 entry_block.idom = &entry_block; |
| 15016 | 671 do |
| 672 changed = update_idom (mvisit_count); | |
| 673 while (changed); | |
| 674 } | |
| 675 | |
| 676 // compute dominance frontier | |
| 677 void compute_df (void) | |
| 678 { | |
| 679 compute_df (mvisit_count); | |
| 680 } | |
| 681 | |
| 682 void create_dom_tree (void) | |
| 683 { | |
| 684 create_dom_tree (mvisit_count); | |
| 685 } | |
| 686 | |
| 687 jit_block *dom_successor (size_t idx) const | |
| 688 { | |
| 689 return dom_succ[idx]; | |
| 690 } | |
| 691 | |
| 692 size_t dom_successor_count (void) const | |
| 693 { | |
| 694 return dom_succ.size (); | |
| 695 } | |
| 696 | |
| 697 // call pop_varaible on all instructions | |
| 698 void pop_all (void); | |
| 699 | |
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700 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const; |
| 15016 | 701 |
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702 jit_block *maybe_split (jit_factory& factory, jit_block_list& blocks, |
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703 jit_block *asuccessor); |
| 15016 | 704 |
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705 jit_block *maybe_split (jit_factory& factory, jit_block_list& blocks, |
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706 jit_block& asuccessor) |
| 15016 | 707 { |
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708 return maybe_split (factory, blocks, &asuccessor); |
| 15016 | 709 } |
| 710 | |
| 711 // print dominator infomration | |
| 712 std::ostream& print_dom (std::ostream& os) const; | |
| 713 | |
| 714 virtual std::ostream& short_print (std::ostream& os) const | |
| 715 { | |
| 716 os << mname; | |
| 717 if (mid != NO_ID) | |
| 718 os << mid; | |
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719 else |
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720 os << "!"; |
| 15016 | 721 return os; |
| 722 } | |
| 723 | |
| 724 llvm::BasicBlock *to_llvm (void) const; | |
| 725 | |
| 726 std::list<jit_block *>::iterator location (void) const | |
| 727 { return mlocation; } | |
| 728 | |
| 729 void stash_location (std::list<jit_block *>::iterator alocation) | |
| 730 { mlocation = alocation; } | |
| 731 | |
| 732 // used to prevent visiting the same node twice in the graph | |
| 733 size_t visit_count (void) const { return mvisit_count; } | |
| 734 | |
| 735 // check if this node has been visited yet at the given visit count. If we | |
| 736 // have not been visited yet, mark us as visited. | |
| 737 bool visited (size_t avisit_count) | |
| 738 { | |
| 739 if (mvisit_count <= avisit_count) | |
| 740 { | |
| 741 mvisit_count = avisit_count + 1; | |
| 742 return false; | |
| 743 } | |
| 744 | |
| 745 return true; | |
| 746 } | |
| 747 | |
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748 jit_instruction *front (void) { return instructions.front (); } |
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749 |
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750 jit_instruction *back (void) { return instructions.back (); } |
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751 |
| 15016 | 752 JIT_VALUE_ACCEPT; |
| 753 private: | |
| 754 void internal_append (jit_instruction *instr); | |
| 755 | |
| 756 void compute_df (size_t avisit_count); | |
| 757 | |
| 758 bool update_idom (size_t avisit_count); | |
| 759 | |
| 760 void create_dom_tree (size_t avisit_count); | |
| 761 | |
| 762 static jit_block *idom_intersect (jit_block *i, jit_block *j); | |
| 763 | |
| 764 size_t mvisit_count; | |
| 765 size_t mid; | |
| 766 jit_block *idom; | |
| 767 df_set mdf; | |
| 768 std::vector<jit_block *> dom_succ; | |
| 769 std::string mname; | |
| 770 instruction_list instructions; | |
| 771 bool malive; | |
| 772 std::list<jit_block *>::iterator mlocation; | |
| 773 }; | |
| 774 | |
| 775 // keeps track of phi functions that use a block on incomming edges | |
| 776 class | |
| 777 jit_phi_incomming : public jit_internal_node<jit_block, jit_phi_incomming> | |
| 778 { | |
| 779 public: | |
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780 jit_phi_incomming (void) : muser (0) { } |
| 15016 | 781 |
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782 jit_phi_incomming (jit_phi *auser) : muser (auser) { } |
| 15016 | 783 |
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784 jit_phi_incomming (const jit_phi_incomming& use) |
| 15016 | 785 { |
| 786 *this = use; | |
| 787 } | |
| 788 | |
| 789 jit_phi_incomming& operator= (const jit_phi_incomming& use) | |
| 790 { | |
| 791 stash_value (use.value ()); | |
| 792 muser = use.muser; | |
| 793 return *this; | |
| 794 } | |
| 795 | |
| 796 jit_phi *user (void) const { return muser; } | |
| 797 | |
| 798 jit_block *user_parent (void) const; | |
| 799 private: | |
| 800 jit_phi *muser; | |
| 801 }; | |
| 802 | |
| 803 // A non-ssa variable | |
| 804 class | |
| 805 jit_variable : public jit_value | |
| 806 { | |
| 807 public: | |
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808 jit_variable (const std::string& aname) : mname (aname), mlast_use (0) { } |
| 15016 | 809 |
| 810 const std::string &name (void) const { return mname; } | |
| 811 | |
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812 // manipulate the value_stack, for use during SSA construction. The top of |
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813 // the value stack represents the current value for this variable |
| 15016 | 814 bool has_top (void) const |
| 815 { | |
| 816 return ! value_stack.empty (); | |
| 817 } | |
| 818 | |
| 819 jit_value *top (void) const | |
| 820 { | |
| 821 return value_stack.top (); | |
| 822 } | |
| 823 | |
| 824 void push (jit_instruction *v) | |
| 825 { | |
| 826 value_stack.push (v); | |
| 827 mlast_use = v; | |
| 828 } | |
| 829 | |
| 830 void pop (void) | |
| 831 { | |
| 832 value_stack.pop (); | |
| 833 } | |
| 834 | |
| 835 jit_instruction *last_use (void) const | |
| 836 { | |
| 837 return mlast_use; | |
| 838 } | |
| 839 | |
| 840 void stash_last_use (jit_instruction *instr) | |
| 841 { | |
| 842 mlast_use = instr; | |
| 843 } | |
| 844 | |
| 845 // blocks in which we are used | |
| 846 void use_blocks (jit_block::df_set& result) | |
| 847 { | |
| 848 jit_use *use = first_use (); | |
| 849 while (use) | |
| 850 { | |
| 851 result.insert (use->user_parent ()); | |
| 852 use = use->next (); | |
| 853 } | |
| 854 } | |
| 855 | |
| 856 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 857 { | |
| 858 return print_indent (os, indent) << mname; | |
| 859 } | |
| 860 | |
| 861 JIT_VALUE_ACCEPT; | |
| 862 private: | |
| 863 std::string mname; | |
| 864 std::stack<jit_value *> value_stack; | |
| 865 jit_instruction *mlast_use; | |
| 866 }; | |
| 867 | |
| 868 class | |
| 869 jit_assign_base : public jit_instruction | |
| 870 { | |
| 871 public: | |
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872 jit_assign_base (jit_variable *adest) : jit_instruction (), mdest (adest) { } |
| 15016 | 873 |
| 874 jit_assign_base (jit_variable *adest, size_t npred) : jit_instruction (npred), | |
| 875 mdest (adest) {} | |
| 876 | |
| 877 jit_assign_base (jit_variable *adest, jit_value *arg0, jit_value *arg1) | |
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878 : jit_instruction (arg0, arg1), mdest (adest) { } |
| 15016 | 879 |
| 880 jit_variable *dest (void) const { return mdest; } | |
| 881 | |
| 882 virtual void push_variable (void) | |
| 883 { | |
| 884 mdest->push (this); | |
| 885 } | |
| 886 | |
| 887 virtual void pop_variable (void) | |
| 888 { | |
| 889 mdest->pop (); | |
| 890 } | |
| 891 | |
| 892 virtual std::ostream& short_print (std::ostream& os) const | |
| 893 { | |
| 894 if (type ()) | |
| 895 jit_print (os, type ()) << ": "; | |
| 896 | |
| 897 dest ()->short_print (os); | |
| 898 return os << "#" << id (); | |
| 899 } | |
| 900 private: | |
| 901 jit_variable *mdest; | |
| 902 }; | |
| 903 | |
| 904 class | |
| 905 jit_assign : public jit_assign_base | |
| 906 { | |
| 907 public: | |
| 908 jit_assign (jit_variable *adest, jit_value *asrc) | |
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909 : jit_assign_base (adest, adest, asrc), martificial (false) { } |
| 15016 | 910 |
| 911 jit_value *overwrite (void) const | |
| 912 { | |
| 913 return argument (0); | |
| 914 } | |
| 915 | |
| 916 jit_value *src (void) const | |
| 917 { | |
| 918 return argument (1); | |
| 919 } | |
| 920 | |
| 921 // variables don't get modified in an SSA, but COW requires we modify | |
| 922 // variables. An artificial assign is for when a variable gets modified. We | |
| 923 // need an assign in the SSA, but the reference counts shouldn't be updated. | |
| 924 bool artificial (void) const { return martificial; } | |
| 925 | |
| 926 void mark_artificial (void) { martificial = true; } | |
| 927 | |
| 928 virtual bool infer (void) | |
| 929 { | |
| 930 jit_type *stype = src ()->type (); | |
| 931 if (stype != type()) | |
| 932 { | |
| 933 stash_type (stype); | |
| 934 return true; | |
| 935 } | |
| 936 | |
| 937 return false; | |
| 938 } | |
| 939 | |
| 940 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 941 { | |
| 942 print_indent (os, indent) << *this << " = " << *src (); | |
| 943 | |
| 944 if (artificial ()) | |
| 945 os << " [artificial]"; | |
| 946 | |
| 947 return os; | |
| 948 } | |
| 949 | |
| 950 JIT_VALUE_ACCEPT; | |
| 951 private: | |
| 952 bool martificial; | |
| 953 }; | |
| 954 | |
| 955 class | |
| 956 jit_phi : public jit_assign_base | |
| 957 { | |
| 958 public: | |
| 959 jit_phi (jit_variable *adest, size_t npred) | |
| 960 : jit_assign_base (adest, npred) | |
| 961 { | |
| 962 mincomming.reserve (npred); | |
| 963 } | |
| 964 | |
| 965 // removes arguments form dead incomming jumps | |
| 966 bool prune (void); | |
| 967 | |
| 968 void add_incomming (jit_block *from, jit_value *value) | |
| 969 { | |
| 970 push_argument (value); | |
| 971 mincomming.push_back (jit_phi_incomming (this)); | |
| 972 mincomming[mincomming.size () - 1].stash_value (from); | |
| 973 } | |
| 974 | |
| 975 jit_block *incomming (size_t i) const | |
| 976 { | |
| 977 return mincomming[i].value (); | |
| 978 } | |
| 979 | |
| 980 llvm::BasicBlock *incomming_llvm (size_t i) const | |
| 981 { | |
| 982 return incomming (i)->to_llvm (); | |
| 983 } | |
| 984 | |
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985 virtual void construct_ssa (void) { } |
| 15016 | 986 |
| 987 virtual bool infer (void); | |
| 988 | |
| 989 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 990 { | |
| 991 std::stringstream ss; | |
| 992 print_indent (ss, indent); | |
| 993 short_print (ss) << " phi "; | |
| 994 std::string ss_str = ss.str (); | |
| 995 std::string indent_str (ss_str.size (), ' '); | |
| 996 os << ss_str; | |
| 997 | |
| 998 for (size_t i = 0; i < argument_count (); ++i) | |
| 999 { | |
| 1000 if (i > 0) | |
| 1001 os << indent_str; | |
| 1002 os << "| "; | |
| 1003 | |
| 1004 os << *incomming (i) << " -> "; | |
| 1005 os << *argument (i); | |
| 1006 | |
| 1007 if (i + 1 < argument_count ()) | |
| 1008 os << std::endl; | |
| 1009 } | |
| 1010 | |
| 1011 return os; | |
| 1012 } | |
| 1013 | |
| 1014 llvm::PHINode *to_llvm (void) const; | |
| 1015 | |
| 1016 JIT_VALUE_ACCEPT; | |
| 1017 private: | |
| 1018 std::vector<jit_phi_incomming> mincomming; | |
| 1019 }; | |
| 1020 | |
| 1021 class | |
| 1022 jit_terminator : public jit_instruction | |
| 1023 { | |
| 1024 public: | |
| 1025 #define JIT_TERMINATOR_CONST(N) \ | |
| 1026 jit_terminator (size_t asuccessor_count, \ | |
| 1027 OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 1028 : jit_instruction (OCT_MAKE_ARG_LIST (arg, N)), \ | |
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1029 malive (asuccessor_count, false) { } |
| 15016 | 1030 |
| 1031 JIT_TERMINATOR_CONST (1) | |
| 1032 JIT_TERMINATOR_CONST (2) | |
| 1033 JIT_TERMINATOR_CONST (3) | |
| 1034 | |
| 1035 #undef JIT_TERMINATOR_CONST | |
| 1036 | |
| 1037 jit_block *successor (size_t idx = 0) const | |
| 1038 { | |
| 1039 return static_cast<jit_block *> (argument (idx)); | |
| 1040 } | |
| 1041 | |
| 1042 llvm::BasicBlock *successor_llvm (size_t idx = 0) const | |
| 1043 { | |
| 1044 return successor (idx)->to_llvm (); | |
| 1045 } | |
| 1046 | |
| 1047 size_t successor_index (const jit_block *asuccessor) const; | |
| 1048 | |
| 1049 std::ostream& print_successor (std::ostream& os, size_t idx = 0) const | |
| 1050 { | |
| 1051 if (alive (idx)) | |
| 1052 os << "[live] "; | |
| 1053 else | |
| 1054 os << "[dead] "; | |
| 1055 | |
| 1056 return successor (idx)->short_print (os); | |
| 1057 } | |
| 1058 | |
| 1059 // Check if the jump to successor is live | |
| 1060 bool alive (const jit_block *asuccessor) const | |
| 1061 { | |
| 1062 return alive (successor_index (asuccessor)); | |
| 1063 } | |
| 1064 | |
| 1065 bool alive (size_t idx) const { return malive[idx]; } | |
| 1066 | |
| 1067 bool alive (int idx) const { return malive[idx]; } | |
| 1068 | |
| 1069 size_t successor_count (void) const { return malive.size (); } | |
| 1070 | |
| 1071 virtual bool infer (void); | |
| 1072 | |
| 1073 llvm::TerminatorInst *to_llvm (void) const; | |
| 1074 protected: | |
| 1075 virtual bool check_alive (size_t) const { return true; } | |
| 1076 private: | |
| 1077 std::vector<bool> malive; | |
| 1078 }; | |
| 1079 | |
| 1080 class | |
| 1081 jit_branch : public jit_terminator | |
| 1082 { | |
| 1083 public: | |
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1084 jit_branch (jit_block *succ) : jit_terminator (1, succ) { } |
| 15016 | 1085 |
| 1086 virtual size_t successor_count (void) const { return 1; } | |
| 1087 | |
| 1088 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1089 { | |
| 1090 print_indent (os, indent) << "branch: "; | |
| 1091 return print_successor (os); | |
| 1092 } | |
| 1093 | |
| 1094 JIT_VALUE_ACCEPT; | |
| 1095 }; | |
| 1096 | |
| 1097 class | |
| 1098 jit_cond_branch : public jit_terminator | |
| 1099 { | |
| 1100 public: | |
| 1101 jit_cond_branch (jit_value *c, jit_block *ctrue, jit_block *cfalse) | |
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1102 : jit_terminator (2, ctrue, cfalse, c) { } |
| 15016 | 1103 |
| 1104 jit_value *cond (void) const { return argument (2); } | |
| 1105 | |
| 1106 std::ostream& print_cond (std::ostream& os) const | |
| 1107 { | |
| 1108 return cond ()->short_print (os); | |
| 1109 } | |
| 1110 | |
| 1111 llvm::Value *cond_llvm (void) const | |
| 1112 { | |
| 1113 return cond ()->to_llvm (); | |
| 1114 } | |
| 1115 | |
| 1116 virtual size_t successor_count (void) const { return 2; } | |
| 1117 | |
| 1118 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1119 { | |
| 1120 print_indent (os, indent) << "cond_branch: "; | |
| 1121 print_cond (os) << ", "; | |
| 1122 print_successor (os, 0) << ", "; | |
| 1123 return print_successor (os, 1); | |
| 1124 } | |
| 1125 | |
| 1126 JIT_VALUE_ACCEPT; | |
| 1127 }; | |
| 1128 | |
| 1129 class | |
| 1130 jit_call : public jit_instruction | |
| 1131 { | |
| 1132 public: | |
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1133 jit_call (const jit_operation& (*aoperation) (void)) |
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1134 : moperation (aoperation ()) |
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1135 { |
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1136 const jit_function& ol = overload (); |
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1137 if (ol.valid ()) |
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1138 stash_type (ol.result ()); |
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1139 } |
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1140 |
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1141 jit_call (const jit_operation& aoperation) : moperation (aoperation) |
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1142 { |
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1143 const jit_function& ol = overload (); |
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1144 if (ol.valid ()) |
|
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1145 stash_type (ol.result ()); |
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1146 } |
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|
1147 |
| 15016 | 1148 #define JIT_CALL_CONST(N) \ |
| 1149 jit_call (const jit_operation& aoperation, \ | |
| 1150 OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
|
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1151 : jit_instruction (OCT_MAKE_ARG_LIST (arg, N)), moperation (aoperation) { } \ |
| 15016 | 1152 \ |
| 1153 jit_call (const jit_operation& (*aoperation) (void), \ | |
| 1154 OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 1155 : jit_instruction (OCT_MAKE_ARG_LIST (arg, N)), moperation (aoperation ()) \ | |
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1156 { } |
| 15016 | 1157 |
| 1158 JIT_CALL_CONST (1) | |
| 1159 JIT_CALL_CONST (2) | |
| 1160 JIT_CALL_CONST (3) | |
| 1161 JIT_CALL_CONST (4) | |
| 1162 | |
| 1163 #undef JIT_CALL_CONST | |
| 1164 | |
| 15067 | 1165 jit_call (const jit_operation& aoperation, |
| 1166 const std::vector<jit_value *>& args) | |
|
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1167 : jit_instruction (args), moperation (aoperation) |
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|
1168 { } |
| 15016 | 1169 |
| 1170 const jit_operation& operation (void) const { return moperation; } | |
| 1171 | |
| 1172 bool can_error (void) const | |
| 1173 { | |
| 1174 return overload ().can_error (); | |
| 1175 } | |
| 1176 | |
| 1177 const jit_function& overload (void) const | |
| 1178 { | |
| 1179 return moperation.overload (argument_types ()); | |
| 1180 } | |
| 1181 | |
| 15603 | 1182 virtual bool needs_release (void) const; |
| 15016 | 1183 |
| 1184 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1185 { | |
| 1186 print_indent (os, indent); | |
| 1187 | |
| 1188 if (use_count ()) | |
| 1189 short_print (os) << " = "; | |
| 1190 os << "call " << moperation.name () << " ("; | |
| 1191 | |
| 1192 for (size_t i = 0; i < argument_count (); ++i) | |
| 1193 { | |
| 1194 print_argument (os, i); | |
| 1195 if (i + 1 < argument_count ()) | |
| 1196 os << ", "; | |
| 1197 } | |
| 1198 return os << ")"; | |
| 1199 } | |
| 1200 | |
| 1201 virtual bool infer (void); | |
| 1202 | |
| 1203 JIT_VALUE_ACCEPT; | |
| 1204 private: | |
| 1205 const jit_operation& moperation; | |
| 1206 }; | |
| 1207 | |
| 1208 // FIXME: This is just ugly... | |
|
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1209 // checks error_state, if error_state is false then goto the normal branch, |
| 15016 | 1210 // otherwise goto the error branch |
| 1211 class | |
| 1212 jit_error_check : public jit_terminator | |
| 1213 { | |
| 1214 public: | |
| 15603 | 1215 // Which variable is the error check for? |
| 1216 enum variable | |
|
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1217 { |
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1218 var_error_state, |
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1219 var_interrupt |
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1220 }; |
| 15603 | 1221 |
| 1222 static std::string variable_to_string (variable v); | |
| 1223 | |
| 1224 jit_error_check (variable var, jit_call *acheck_for, jit_block *normal, | |
| 1225 jit_block *error) | |
|
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1226 : jit_terminator (2, error, normal, acheck_for), mvariable (var) { } |
| 15603 | 1227 |
| 1228 jit_error_check (variable var, jit_block *normal, jit_block *error) | |
|
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1229 : jit_terminator (2, error, normal), mvariable (var) { } |
| 15603 | 1230 |
| 1231 variable check_variable (void) const { return mvariable; } | |
| 1232 | |
| 1233 bool has_check_for (void) const | |
| 1234 { | |
| 1235 return argument_count () == 3; | |
| 1236 } | |
| 15016 | 1237 |
| 1238 jit_call *check_for (void) const | |
| 1239 { | |
| 15603 | 1240 assert (has_check_for ()); |
| 15016 | 1241 return static_cast<jit_call *> (argument (2)); |
| 1242 } | |
| 1243 | |
| 15603 | 1244 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const; |
| 15016 | 1245 |
| 1246 JIT_VALUE_ACCEPT; | |
| 1247 protected: | |
| 1248 virtual bool check_alive (size_t idx) const | |
| 1249 { | |
| 15603 | 1250 if (! has_check_for ()) |
| 1251 return true; | |
| 15016 | 1252 return idx == 1 ? true : check_for ()->can_error (); |
| 1253 } | |
| 15603 | 1254 private: |
| 1255 variable mvariable; | |
| 15016 | 1256 }; |
| 1257 | |
|
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1258 // for now only handles the 1D case |
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1259 class |
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1260 jit_magic_end : public jit_instruction |
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1261 { |
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1262 public: |
| 15067 | 1263 class |
| 1264 context | |
| 1265 { | |
| 1266 public: | |
| 1267 context (void) : value (0), index (0), count (0) | |
|
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1268 { } |
| 15067 | 1269 |
|
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1270 context (jit_factory& factory, jit_value *avalue, size_t aindex, |
|
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1271 size_t acount); |
| 15067 | 1272 |
| 1273 jit_value *value; | |
|
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1274 jit_const_index *index; |
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1275 jit_const_index *count; |
| 15067 | 1276 }; |
| 1277 | |
| 1278 jit_magic_end (const std::vector<context>& full_context); | |
|
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1279 |
|
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1280 virtual bool infer (void); |
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1281 |
|
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1282 const jit_function& overload () const; |
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1283 |
|
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1284 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const; |
|
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1285 |
|
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|
1286 context resolve_context (void) const; |
|
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1287 |
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|
1288 virtual std::ostream& short_print (std::ostream& os) const |
|
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1289 { |
|
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1290 return os << "magic_end" << "#" << id (); |
|
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1291 } |
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1292 |
|
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|
1293 JIT_VALUE_ACCEPT; |
|
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1294 private: |
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|
1295 std::vector<context> contexts; |
|
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1296 }; |
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1297 |
| 15016 | 1298 class |
| 1299 jit_extract_argument : public jit_assign_base | |
| 1300 { | |
| 1301 public: | |
| 1302 jit_extract_argument (jit_type *atype, jit_variable *adest) | |
| 1303 : jit_assign_base (adest) | |
| 1304 { | |
| 1305 stash_type (atype); | |
| 1306 } | |
| 1307 | |
| 1308 const std::string& name (void) const | |
| 1309 { | |
| 1310 return dest ()->name (); | |
| 1311 } | |
| 1312 | |
| 1313 const jit_function& overload (void) const | |
| 1314 { | |
| 1315 return jit_typeinfo::cast (type (), jit_typeinfo::get_any ()); | |
| 1316 } | |
| 1317 | |
| 1318 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1319 { | |
| 1320 print_indent (os, indent); | |
| 1321 | |
| 1322 return short_print (os) << " = extract " << name (); | |
| 1323 } | |
| 1324 | |
| 1325 JIT_VALUE_ACCEPT; | |
| 1326 }; | |
| 1327 | |
| 1328 class | |
| 1329 jit_store_argument : public jit_instruction | |
| 1330 { | |
| 1331 public: | |
| 1332 jit_store_argument (jit_variable *var) | |
|
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1333 : jit_instruction (var), dest (var) |
|
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1334 { } |
| 15016 | 1335 |
| 1336 const std::string& name (void) const | |
| 1337 { | |
| 1338 return dest->name (); | |
| 1339 } | |
| 1340 | |
| 1341 const jit_function& overload (void) const | |
| 1342 { | |
| 1343 return jit_typeinfo::cast (jit_typeinfo::get_any (), result_type ()); | |
| 1344 } | |
| 1345 | |
| 1346 jit_value *result (void) const | |
| 1347 { | |
| 1348 return argument (0); | |
| 1349 } | |
| 1350 | |
| 1351 jit_type *result_type (void) const | |
| 1352 { | |
| 1353 return result ()->type (); | |
| 1354 } | |
| 1355 | |
| 1356 llvm::Value *result_llvm (void) const | |
| 1357 { | |
| 1358 return result ()->to_llvm (); | |
| 1359 } | |
| 1360 | |
| 1361 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1362 { | |
| 1363 jit_value *res = result (); | |
| 1364 print_indent (os, indent) << "store "; | |
| 1365 dest->short_print (os); | |
| 1366 | |
| 1367 if (! isa<jit_variable> (res)) | |
| 1368 { | |
| 1369 os << " = "; | |
| 1370 res->short_print (os); | |
| 1371 } | |
| 1372 | |
| 1373 return os; | |
| 1374 } | |
| 1375 | |
| 1376 JIT_VALUE_ACCEPT; | |
| 1377 private: | |
| 1378 jit_variable *dest; | |
| 1379 }; | |
| 1380 | |
| 1381 class | |
|
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1382 jit_return : public jit_instruction |
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1383 { |
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1384 public: |
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1385 jit_return (void) { } |
|
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1386 |
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1387 jit_return (jit_value *retval) : jit_instruction (retval) { } |
|
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1388 |
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1389 jit_value *result (void) const |
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1390 { |
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1391 return argument_count () ? argument (0) : 0; |
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1392 } |
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1393 |
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1394 jit_type *result_type (void) const |
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1395 { |
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1396 jit_value *res = result (); |
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1397 return res ? res->type () : 0; |
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1398 } |
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1399 |
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1400 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const |
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1401 { |
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1402 print_indent (os, indent) << "return"; |
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1403 |
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1404 if (result ()) |
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1405 os << " " << *result (); |
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1406 |
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1407 return os; |
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1408 } |
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1409 |
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1410 JIT_VALUE_ACCEPT; |
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1411 }; |
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1412 |
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1413 class |
| 15016 | 1414 jit_ir_walker |
| 1415 { | |
| 1416 public: | |
|
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1417 virtual ~jit_ir_walker () { } |
| 15016 | 1418 |
| 1419 #define JIT_METH(clname) \ | |
| 1420 virtual void visit (jit_ ## clname&) = 0; | |
| 1421 | |
| 1422 JIT_VISIT_IR_CLASSES; | |
| 1423 | |
| 1424 #undef JIT_METH | |
| 1425 }; | |
| 1426 | |
| 1427 template <typename T, jit_type *(*EXTRACT_T)(void), typename PASS_T, bool QUOTE> | |
| 1428 void | |
| 1429 jit_const<T, EXTRACT_T, PASS_T, QUOTE>::accept (jit_ir_walker& walker) | |
| 1430 { | |
| 1431 walker.visit (*this); | |
| 1432 } | |
| 1433 | |
| 1434 #undef JIT_VALUE_ACCEPT | |
| 1435 | |
| 1436 #endif | |
| 1437 #endif | |
| 18600 | 1438 |
| 1439 #pragma GCC diagnostic pop |