Mercurial > octave-nkf
annotate libinterp/corefcn/jit-ir.cc @ 20654:b65888ec820e draft default tip gccjit
dmalcom gcc jit import
| author | Stefan Mahr <dac922@gmx.de> |
|---|---|
| date | Fri, 27 Feb 2015 16:59:36 +0100 |
| parents | 4197fc428c7d |
| children |
| rev | line source |
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| 15016 | 1 /* |
| 2 | |
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3 Copyright (C) 2012-2015 Max Brister |
| 15016 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 3 of the License, or (at your | |
| 10 option) any later version. | |
| 11 | |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with Octave; see the file COPYING. If not, see | |
| 19 <http://www.gnu.org/licenses/>. | |
| 20 | |
| 21 */ | |
| 22 | |
| 16768 | 23 // Author: Max Brister <max@2bass.com> |
| 24 | |
| 15016 | 25 // defines required by llvm |
| 26 #define __STDC_LIMIT_MACROS | |
| 27 #define __STDC_CONSTANT_MACROS | |
| 28 | |
| 29 #ifdef HAVE_CONFIG_H | |
| 30 #include <config.h> | |
| 31 #endif | |
| 32 | |
| 20654 | 33 #ifdef HAVE_JIT |
| 15016 | 34 |
| 35 #include "jit-ir.h" | |
| 36 | |
| 20654 | 37 #if HAVE_LLVM |
| 17164 | 38 #ifdef HAVE_LLVM_IR_FUNCTION_H |
| 39 #include <llvm/IR/BasicBlock.h> | |
| 40 #include <llvm/IR/Instructions.h> | |
| 41 #else | |
| 15016 | 42 #include <llvm/BasicBlock.h> |
| 43 #include <llvm/Instructions.h> | |
| 17164 | 44 #endif |
| 20654 | 45 #endif |
| 15016 | 46 |
| 47 #include "error.h" | |
|
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48 |
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49 // -------------------- jit_factory -------------------- |
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50 jit_factory::~jit_factory (void) |
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51 { |
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52 for (value_list::iterator iter = all_values.begin (); |
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53 iter != all_values.end (); ++iter) |
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54 delete *iter; |
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55 } |
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56 |
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57 void |
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58 jit_factory::track_value (jit_value *value) |
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59 { |
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60 if (value->type ()) |
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61 mconstants.push_back (value); |
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62 all_values.push_back (value); |
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63 } |
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64 |
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65 // -------------------- jit_block_list -------------------- |
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66 void |
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67 jit_block_list::insert_after (iterator iter, jit_block *ablock) |
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68 { |
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69 ++iter; |
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70 insert_before (iter, ablock); |
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71 } |
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72 |
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73 void |
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74 jit_block_list::insert_after (jit_block *loc, jit_block *ablock) |
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75 { |
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76 insert_after (loc->location (), ablock); |
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77 } |
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78 |
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79 void |
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80 jit_block_list::insert_before (iterator iter, jit_block *ablock) |
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81 { |
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82 iter = mlist.insert (iter, ablock); |
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83 ablock->stash_location (iter); |
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84 } |
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85 |
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86 void |
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87 jit_block_list::insert_before (jit_block *loc, jit_block *ablock) |
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88 { |
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89 insert_before (loc->location (), ablock); |
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90 } |
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91 |
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92 void |
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93 jit_block_list::label (void) |
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94 { |
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95 if (mlist.size ()) |
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96 { |
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97 jit_block *block = mlist.back (); |
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98 block->label (); |
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99 } |
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100 } |
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101 |
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102 std::ostream& |
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103 jit_block_list::print (std::ostream& os, const std::string& header) const |
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104 { |
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105 os << "-------------------- " << header << " --------------------\n"; |
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106 return os << *this; |
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107 } |
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108 |
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109 std::ostream& |
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110 jit_block_list::print_dom (std::ostream& os) const |
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111 { |
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112 os << "-------------------- dom info --------------------\n"; |
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113 for (const_iterator iter = begin (); iter != end (); ++iter) |
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114 { |
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115 assert (*iter); |
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116 (*iter)->print_dom (os); |
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117 } |
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118 os << std::endl; |
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119 |
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120 return os; |
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121 } |
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122 |
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123 void |
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124 jit_block_list::push_back (jit_block *b) |
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125 { |
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126 mlist.push_back (b); |
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127 iterator iter = mlist.end (); |
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128 b->stash_location (--iter); |
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129 } |
| 15016 | 130 |
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131 std::ostream& |
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132 operator<<(std::ostream& os, const jit_block_list& blocks) |
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133 { |
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134 for (jit_block_list::const_iterator iter = blocks.begin (); |
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135 iter != blocks.end (); ++iter) |
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136 { |
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137 assert (*iter); |
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138 (*iter)->print (os, 0); |
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139 } |
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140 return os << std::endl; |
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141 } |
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142 |
| 15016 | 143 // -------------------- jit_use -------------------- |
| 144 jit_block * | |
| 145 jit_use::user_parent (void) const | |
| 146 { | |
| 147 return muser->parent (); | |
| 148 } | |
| 149 | |
| 150 // -------------------- jit_value -------------------- | |
| 151 jit_value::~jit_value (void) | |
| 152 {} | |
| 153 | |
| 154 jit_block * | |
| 155 jit_value::first_use_block (void) | |
| 156 { | |
| 157 jit_use *use = first_use (); | |
| 158 while (use) | |
| 159 { | |
| 160 if (! isa<jit_error_check> (use->user ())) | |
| 161 return use->user_parent (); | |
| 162 | |
| 163 use = use->next (); | |
| 164 } | |
| 165 | |
| 166 return 0; | |
| 167 } | |
| 168 | |
| 169 void | |
| 170 jit_value::replace_with (jit_value *value) | |
| 171 { | |
| 172 while (first_use ()) | |
| 173 { | |
| 174 jit_instruction *user = first_use ()->user (); | |
| 175 size_t idx = first_use ()->index (); | |
| 176 user->stash_argument (idx, value); | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 #define JIT_METH(clname) \ | |
| 181 void \ | |
| 182 jit_ ## clname::accept (jit_ir_walker& walker) \ | |
| 183 { \ | |
| 184 walker.visit (*this); \ | |
| 185 } | |
| 186 | |
| 187 JIT_VISIT_IR_NOTEMPLATE | |
| 188 #undef JIT_METH | |
| 189 | |
| 190 std::ostream& | |
| 191 operator<< (std::ostream& os, const jit_value& value) | |
| 192 { | |
| 193 return value.short_print (os); | |
| 194 } | |
| 195 | |
| 196 std::ostream& | |
| 197 jit_print (std::ostream& os, jit_value *avalue) | |
| 198 { | |
| 199 if (avalue) | |
| 200 return avalue->print (os); | |
| 201 return os << "NULL"; | |
| 202 } | |
| 203 | |
| 204 // -------------------- jit_instruction -------------------- | |
| 205 void | |
| 206 jit_instruction::remove (void) | |
| 207 { | |
| 208 if (mparent) | |
| 209 mparent->remove (mlocation); | |
| 210 resize_arguments (0); | |
| 211 } | |
| 212 | |
| 20654 | 213 #if HAVE_LLVM |
| 15016 | 214 llvm::BasicBlock * |
| 215 jit_instruction::parent_llvm (void) const | |
| 216 { | |
| 217 return mparent->to_llvm (); | |
| 218 } | |
| 20654 | 219 #endif |
| 15016 | 220 |
| 221 std::ostream& | |
| 222 jit_instruction::short_print (std::ostream& os) const | |
| 223 { | |
| 224 if (type ()) | |
| 225 jit_print (os, type ()) << ": "; | |
| 226 return os << "#" << mid; | |
| 227 } | |
| 228 | |
| 229 void | |
| 230 jit_instruction::do_construct_ssa (size_t start, size_t end) | |
| 231 { | |
| 232 for (size_t i = start; i < end; ++i) | |
| 233 { | |
| 234 jit_value *arg = argument (i); | |
| 235 jit_variable *var = dynamic_cast<jit_variable *> (arg); | |
| 236 if (var && var->has_top ()) | |
| 237 stash_argument (i, var->top ()); | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 // -------------------- jit_block -------------------- | |
| 242 void | |
| 243 jit_block::replace_with (jit_value *value) | |
| 244 { | |
| 245 assert (isa<jit_block> (value)); | |
| 246 jit_block *block = static_cast<jit_block *> (value); | |
| 247 | |
| 248 jit_value::replace_with (block); | |
| 249 | |
| 250 while (ILIST_T::first_use ()) | |
| 251 { | |
| 252 jit_phi_incomming *incomming = ILIST_T::first_use (); | |
| 253 incomming->stash_value (block); | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 void | |
| 258 jit_block::replace_in_phi (jit_block *ablock, jit_block *with) | |
| 259 { | |
| 260 jit_phi_incomming *node = ILIST_T::first_use (); | |
| 261 while (node) | |
| 262 { | |
| 263 jit_phi_incomming *prev = node; | |
| 264 node = node->next (); | |
| 265 | |
| 266 if (prev->user_parent () == ablock) | |
| 267 prev->stash_value (with); | |
| 268 } | |
| 269 } | |
| 270 | |
| 271 jit_block * | |
| 272 jit_block::maybe_merge () | |
| 273 { | |
| 274 if (successor_count () == 1 && successor (0) != this | |
| 275 && (successor (0)->use_count () == 1 || instructions.size () == 1)) | |
| 276 { | |
| 277 jit_block *to_merge = successor (0); | |
| 278 merge (*to_merge); | |
| 279 return to_merge; | |
| 280 } | |
| 281 | |
| 282 return 0; | |
| 283 } | |
| 284 | |
| 285 void | |
| 286 jit_block::merge (jit_block& block) | |
| 287 { | |
| 288 // the merge block will contain a new terminator | |
| 289 jit_terminator *old_term = terminator (); | |
| 290 if (old_term) | |
| 291 old_term->remove (); | |
| 292 | |
| 293 bool was_empty = end () == begin (); | |
| 294 iterator merge_begin = end (); | |
| 295 if (! was_empty) | |
| 296 --merge_begin; | |
| 297 | |
| 298 instructions.splice (end (), block.instructions); | |
| 299 if (was_empty) | |
| 300 merge_begin = begin (); | |
| 301 else | |
| 302 ++merge_begin; | |
| 303 | |
| 304 // now merge_begin points to the start of the new instructions, we must | |
| 305 // update their parent information | |
| 306 for (iterator iter = merge_begin; iter != end (); ++iter) | |
| 307 { | |
| 308 jit_instruction *instr = *iter; | |
| 309 instr->stash_parent (this, iter); | |
| 310 } | |
| 311 | |
| 312 block.replace_with (this); | |
| 313 } | |
| 314 | |
| 315 jit_instruction * | |
| 316 jit_block::prepend (jit_instruction *instr) | |
| 317 { | |
| 318 instructions.push_front (instr); | |
| 319 instr->stash_parent (this, instructions.begin ()); | |
| 320 return instr; | |
| 321 } | |
| 322 | |
| 323 jit_instruction * | |
| 324 jit_block::prepend_after_phi (jit_instruction *instr) | |
| 325 { | |
| 326 // FIXME: Make this O(1) | |
| 327 for (iterator iter = begin (); iter != end (); ++iter) | |
| 328 { | |
| 329 jit_instruction *temp = *iter; | |
| 330 if (! isa<jit_phi> (temp)) | |
| 331 { | |
| 332 insert_before (iter, instr); | |
| 333 return instr; | |
| 334 } | |
| 335 } | |
| 336 | |
| 337 return append (instr); | |
| 338 } | |
| 339 | |
| 340 void | |
| 341 jit_block::internal_append (jit_instruction *instr) | |
| 342 { | |
| 343 instructions.push_back (instr); | |
| 344 instr->stash_parent (this, --instructions.end ()); | |
| 345 } | |
| 346 | |
| 347 jit_instruction * | |
| 348 jit_block::insert_before (iterator loc, jit_instruction *instr) | |
| 349 { | |
| 350 iterator iloc = instructions.insert (loc, instr); | |
| 351 instr->stash_parent (this, iloc); | |
| 352 return instr; | |
| 353 } | |
| 354 | |
| 355 jit_instruction * | |
| 356 jit_block::insert_after (iterator loc, jit_instruction *instr) | |
| 357 { | |
| 358 ++loc; | |
| 359 iterator iloc = instructions.insert (loc, instr); | |
| 360 instr->stash_parent (this, iloc); | |
| 361 return instr; | |
| 362 } | |
| 363 | |
| 364 jit_terminator * | |
| 365 jit_block::terminator (void) const | |
| 366 { | |
| 367 assert (this); | |
| 368 if (instructions.empty ()) | |
| 369 return 0; | |
| 370 | |
| 371 jit_instruction *last = instructions.back (); | |
| 372 return dynamic_cast<jit_terminator *> (last); | |
| 373 } | |
| 374 | |
| 375 bool | |
| 376 jit_block::branch_alive (jit_block *asucc) const | |
| 377 { | |
| 378 return terminator ()->alive (asucc); | |
| 379 } | |
| 380 | |
| 381 jit_block * | |
| 382 jit_block::successor (size_t i) const | |
| 383 { | |
| 384 jit_terminator *term = terminator (); | |
| 385 return term->successor (i); | |
| 386 } | |
| 387 | |
| 388 size_t | |
| 389 jit_block::successor_count (void) const | |
| 390 { | |
| 391 jit_terminator *term = terminator (); | |
| 392 return term ? term->successor_count () : 0; | |
| 393 } | |
| 394 | |
| 20654 | 395 #if HAVE_LLVM |
| 15016 | 396 llvm::BasicBlock * |
| 397 jit_block::to_llvm (void) const | |
| 398 { | |
| 399 return llvm::cast<llvm::BasicBlock> (llvm_value); | |
| 400 } | |
| 20654 | 401 #endif |
| 15016 | 402 |
| 403 std::ostream& | |
| 404 jit_block::print_dom (std::ostream& os) const | |
| 405 { | |
| 406 short_print (os); | |
| 407 os << ":\n"; | |
| 408 os << " mid: " << mid << std::endl; | |
| 409 os << " predecessors: "; | |
| 410 for (jit_use *use = first_use (); use; use = use->next ()) | |
| 411 os << *use->user_parent () << " "; | |
| 412 os << std::endl; | |
| 413 | |
| 414 os << " successors: "; | |
| 415 for (size_t i = 0; i < successor_count (); ++i) | |
| 416 os << *successor (i) << " "; | |
| 417 os << std::endl; | |
| 418 | |
| 419 os << " idom: "; | |
| 420 if (idom) | |
| 421 os << *idom; | |
| 422 else | |
| 423 os << "NULL"; | |
| 424 os << std::endl; | |
| 425 os << " df: "; | |
| 426 for (df_iterator iter = df_begin (); iter != df_end (); ++iter) | |
| 427 os << **iter << " "; | |
| 428 os << std::endl; | |
| 429 | |
| 430 os << " dom_succ: "; | |
| 431 for (size_t i = 0; i < dom_succ.size (); ++i) | |
| 432 os << *dom_succ[i] << " "; | |
| 433 | |
| 434 return os << std::endl; | |
| 435 } | |
| 436 | |
| 437 void | |
| 438 jit_block::compute_df (size_t avisit_count) | |
| 439 { | |
| 440 if (visited (avisit_count)) | |
| 441 return; | |
| 442 | |
| 443 if (use_count () >= 2) | |
| 444 { | |
| 445 for (jit_use *use = first_use (); use; use = use->next ()) | |
| 446 { | |
| 447 jit_block *runner = use->user_parent (); | |
| 448 while (runner != idom) | |
| 449 { | |
| 450 runner->mdf.insert (this); | |
| 451 runner = runner->idom; | |
| 452 } | |
| 453 } | |
| 454 } | |
| 455 | |
| 456 for (size_t i = 0; i < successor_count (); ++i) | |
| 457 successor (i)->compute_df (avisit_count); | |
| 458 } | |
| 459 | |
| 460 bool | |
| 461 jit_block::update_idom (size_t avisit_count) | |
| 462 { | |
| 463 if (visited (avisit_count) || ! use_count ()) | |
| 464 return false; | |
| 465 | |
| 466 bool changed = false; | |
| 467 for (jit_use *use = first_use (); use; use = use->next ()) | |
| 468 { | |
| 469 jit_block *pred = use->user_parent (); | |
| 470 changed = pred->update_idom (avisit_count) || changed; | |
| 471 } | |
| 472 | |
| 473 jit_use *use = first_use (); | |
| 474 jit_block *new_idom = use->user_parent (); | |
| 475 use = use->next (); | |
| 476 | |
| 477 for (; use; use = use->next ()) | |
| 478 { | |
| 479 jit_block *pred = use->user_parent (); | |
| 480 jit_block *pidom = pred->idom; | |
| 481 if (pidom) | |
| 482 new_idom = idom_intersect (pidom, new_idom); | |
| 483 } | |
| 484 | |
| 485 if (idom != new_idom) | |
| 486 { | |
| 487 idom = new_idom; | |
| 488 return true; | |
| 489 } | |
| 490 | |
| 491 return changed; | |
| 492 } | |
| 493 | |
| 494 void | |
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495 jit_block::label (size_t avisit_count, size_t& number) |
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496 { |
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497 if (visited (avisit_count)) |
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498 return; |
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499 |
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500 for (jit_use *use = first_use (); use; use = use->next ()) |
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501 { |
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502 jit_block *pred = use->user_parent (); |
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503 pred->label (avisit_count, number); |
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504 } |
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505 |
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506 mid = number++; |
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507 } |
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508 |
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509 void |
| 15016 | 510 jit_block::pop_all (void) |
| 511 { | |
| 512 for (iterator iter = begin (); iter != end (); ++iter) | |
| 513 { | |
| 514 jit_instruction *instr = *iter; | |
| 515 instr->pop_variable (); | |
| 516 } | |
| 517 } | |
| 518 | |
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519 std::ostream& |
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520 jit_block::print (std::ostream& os, size_t indent) const |
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521 { |
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522 print_indent (os, indent); |
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523 short_print (os) << ": %pred = "; |
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524 for (jit_use *use = first_use (); use; use = use->next ()) |
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525 { |
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526 jit_block *pred = use->user_parent (); |
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527 os << *pred; |
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528 if (use->next ()) |
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529 os << ", "; |
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530 } |
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531 os << std::endl; |
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532 |
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533 for (const_iterator iter = begin (); iter != end (); ++iter) |
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534 { |
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535 jit_instruction *instr = *iter; |
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536 instr->print (os, indent + 1) << std::endl; |
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537 } |
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538 return os; |
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539 } |
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540 |
| 15016 | 541 jit_block * |
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542 jit_block::maybe_split (jit_factory& factory, jit_block_list& blocks, |
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543 jit_block *asuccessor) |
| 15016 | 544 { |
| 545 if (successor_count () > 1) | |
| 546 { | |
| 547 jit_terminator *term = terminator (); | |
| 548 size_t idx = term->successor_index (asuccessor); | |
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549 jit_block *split = factory.create<jit_block> ("phi_split", mvisit_count); |
| 15016 | 550 |
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551 // place after this to ensure define before use in the blocks list |
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552 blocks.insert_after (this, split); |
| 15016 | 553 |
| 554 term->stash_argument (idx, split); | |
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555 jit_branch *br = split->append (factory.create<jit_branch> (asuccessor)); |
| 15016 | 556 replace_in_phi (asuccessor, split); |
| 557 | |
| 558 if (alive ()) | |
| 559 { | |
| 560 split->mark_alive (); | |
| 561 br->infer (); | |
| 562 } | |
| 563 | |
| 564 return split; | |
| 565 } | |
| 566 | |
| 567 return this; | |
| 568 } | |
| 569 | |
| 570 void | |
| 571 jit_block::create_dom_tree (size_t avisit_count) | |
| 572 { | |
| 573 if (visited (avisit_count)) | |
| 574 return; | |
| 575 | |
| 576 if (idom != this) | |
| 577 idom->dom_succ.push_back (this); | |
| 578 | |
| 579 for (size_t i = 0; i < successor_count (); ++i) | |
| 580 successor (i)->create_dom_tree (avisit_count); | |
| 581 } | |
| 582 | |
| 583 jit_block * | |
| 584 jit_block::idom_intersect (jit_block *i, jit_block *j) | |
| 585 { | |
| 586 while (i && j && i != j) | |
| 587 { | |
| 588 while (i && i->id () > j->id ()) | |
| 589 i = i->idom; | |
| 590 | |
| 591 while (i && j && j->id () > i->id ()) | |
| 592 j = j->idom; | |
| 593 } | |
| 594 | |
| 595 return i ? i : j; | |
| 596 } | |
| 597 | |
| 598 // -------------------- jit_phi_incomming -------------------- | |
| 599 | |
| 600 jit_block * | |
| 601 jit_phi_incomming::user_parent (void) const | |
| 602 { return muser->parent (); } | |
| 603 | |
| 604 // -------------------- jit_phi -------------------- | |
| 605 bool | |
| 606 jit_phi::prune (void) | |
| 607 { | |
| 608 jit_block *p = parent (); | |
| 609 size_t new_idx = 0; | |
| 610 jit_value *unique = argument (1); | |
| 611 | |
| 612 for (size_t i = 0; i < argument_count (); ++i) | |
| 613 { | |
| 614 jit_block *inc = incomming (i); | |
| 615 if (inc->branch_alive (p)) | |
| 616 { | |
| 617 if (unique != argument (i)) | |
| 618 unique = 0; | |
| 619 | |
| 620 if (new_idx != i) | |
| 621 { | |
| 622 stash_argument (new_idx, argument (i)); | |
| 623 mincomming[new_idx].stash_value (inc); | |
| 624 } | |
| 625 | |
| 626 ++new_idx; | |
| 627 } | |
| 628 } | |
| 629 | |
| 630 if (new_idx != argument_count ()) | |
| 631 { | |
| 632 resize_arguments (new_idx); | |
| 633 mincomming.resize (new_idx); | |
| 634 } | |
| 635 | |
| 636 assert (argument_count () > 0); | |
| 637 if (unique) | |
| 638 { | |
| 639 replace_with (unique); | |
| 640 return true; | |
| 641 } | |
| 642 | |
| 643 return false; | |
| 644 } | |
| 645 | |
| 646 bool | |
| 647 jit_phi::infer (void) | |
| 648 { | |
| 649 jit_block *p = parent (); | |
| 650 if (! p->alive ()) | |
| 651 return false; | |
| 652 | |
| 653 jit_type *infered = 0; | |
| 654 for (size_t i = 0; i < argument_count (); ++i) | |
| 655 { | |
| 656 jit_block *inc = incomming (i); | |
| 657 if (inc->branch_alive (p)) | |
| 658 infered = jit_typeinfo::join (infered, argument_type (i)); | |
| 659 } | |
| 660 | |
| 661 if (infered != type ()) | |
| 662 { | |
| 663 stash_type (infered); | |
| 664 return true; | |
| 665 } | |
| 666 | |
| 667 return false; | |
| 668 } | |
| 669 | |
| 20654 | 670 #if HAVE_LLVM |
| 15016 | 671 llvm::PHINode * |
| 672 jit_phi::to_llvm (void) const | |
| 673 { | |
| 674 return llvm::cast<llvm::PHINode> (jit_value::to_llvm ()); | |
| 675 } | |
| 20654 | 676 #endif |
| 15016 | 677 |
| 678 // -------------------- jit_terminator -------------------- | |
| 679 size_t | |
| 680 jit_terminator::successor_index (const jit_block *asuccessor) const | |
| 681 { | |
| 682 size_t scount = successor_count (); | |
| 683 for (size_t i = 0; i < scount; ++i) | |
| 684 if (successor (i) == asuccessor) | |
| 685 return i; | |
| 686 | |
| 687 panic_impossible (); | |
| 688 } | |
| 689 | |
| 690 bool | |
| 691 jit_terminator::infer (void) | |
| 692 { | |
| 693 if (! parent ()->alive ()) | |
| 694 return false; | |
| 695 | |
| 696 bool changed = false; | |
| 697 for (size_t i = 0; i < malive.size (); ++i) | |
| 698 if (! malive[i] && check_alive (i)) | |
| 699 { | |
| 700 changed = true; | |
| 701 malive[i] = true; | |
| 702 successor (i)->mark_alive (); | |
| 703 } | |
| 704 | |
| 705 return changed; | |
| 706 } | |
| 707 | |
| 20654 | 708 #if HAVE_LLVM |
| 15016 | 709 llvm::TerminatorInst * |
| 710 jit_terminator::to_llvm (void) const | |
| 711 { | |
| 712 return llvm::cast<llvm::TerminatorInst> (jit_value::to_llvm ()); | |
| 713 } | |
| 20654 | 714 #endif |
| 15016 | 715 |
| 716 // -------------------- jit_call -------------------- | |
| 717 bool | |
| 15603 | 718 jit_call::needs_release (void) const |
| 719 { | |
| 720 if (type () && jit_typeinfo::get_release (type ()).valid ()) | |
| 721 { | |
| 722 for (jit_use *use = first_use (); use; use = use->next ()) | |
| 723 { | |
| 724 jit_assign *assign = dynamic_cast<jit_assign *> (use->user ()); | |
| 725 if (assign && assign->artificial ()) | |
| 726 return false; | |
| 727 } | |
| 728 | |
| 729 return true; | |
| 730 } | |
| 731 return false; | |
| 732 } | |
| 733 | |
| 734 bool | |
| 15016 | 735 jit_call::infer (void) |
| 736 { | |
| 737 // FIXME: explain algorithm | |
| 738 for (size_t i = 0; i < argument_count (); ++i) | |
| 739 { | |
| 740 already_infered[i] = argument_type (i); | |
| 741 if (! already_infered[i]) | |
| 742 return false; | |
| 743 } | |
| 744 | |
| 745 jit_type *infered = moperation.result (already_infered); | |
| 746 if (! infered && use_count ()) | |
| 747 { | |
| 748 std::stringstream ss; | |
| 749 ss << "Missing overload in type inference for "; | |
| 750 print (ss, 0); | |
| 751 throw jit_fail_exception (ss.str ()); | |
| 752 } | |
| 753 | |
| 754 if (infered != type ()) | |
| 755 { | |
| 756 stash_type (infered); | |
| 757 return true; | |
| 758 } | |
| 759 | |
| 760 return false; | |
| 761 } | |
| 762 | |
| 15603 | 763 // -------------------- jit_error_check -------------------- |
| 764 std::string | |
| 765 jit_error_check::variable_to_string (variable v) | |
| 766 { | |
| 767 switch (v) | |
| 768 { | |
| 769 case var_error_state: | |
| 770 return "error_state"; | |
| 771 case var_interrupt: | |
| 772 return "interrupt"; | |
| 773 default: | |
| 774 panic_impossible (); | |
| 775 } | |
| 776 } | |
| 777 | |
| 778 std::ostream& | |
| 779 jit_error_check::print (std::ostream& os, size_t indent) const | |
| 780 { | |
| 781 print_indent (os, indent) << "error_check " << variable_to_string (mvariable) | |
| 782 << ", "; | |
| 783 | |
| 784 if (has_check_for ()) | |
| 785 os << "<for> " << *check_for () << ", "; | |
| 786 print_successor (os << "<normal> ", 1) << ", "; | |
| 787 return print_successor (os << "<error> ", 0); | |
| 788 } | |
| 789 | |
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790 // -------------------- jit_magic_end -------------------- |
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791 jit_magic_end::context::context (jit_factory& factory, jit_value *avalue, |
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792 size_t aindex, size_t acount) |
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793 : value (avalue), index (factory.create<jit_const_index> (aindex)), |
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794 count (factory.create<jit_const_index> (acount)) |
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795 {} |
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796 |
| 15067 | 797 jit_magic_end::jit_magic_end (const std::vector<context>& full_context) |
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798 : contexts (full_context) |
| 15067 | 799 { |
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800 resize_arguments (contexts.size ()); |
| 15067 | 801 |
| 802 size_t i; | |
| 803 std::vector<context>::const_iterator iter; | |
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804 for (iter = contexts.begin (), i = 0; iter != contexts.end (); ++iter, ++i) |
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805 stash_argument (i, iter->value); |
| 15067 | 806 } |
| 807 | |
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808 jit_magic_end::context |
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809 jit_magic_end::resolve_context (void) const |
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810 { |
|
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811 size_t idx; |
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812 for (idx = 0; idx < contexts.size (); ++idx) |
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813 { |
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814 jit_type *ctx_type = contexts[idx].value->type (); |
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815 if (! ctx_type || ctx_type->skip_paren ()) |
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816 break; |
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817 } |
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818 |
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819 if (idx >= contexts.size ()) |
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820 idx = 0; |
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821 |
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822 context ret = contexts[idx]; |
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823 ret.value = argument (idx); |
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824 return ret; |
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825 } |
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826 |
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827 bool |
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828 jit_magic_end::infer (void) |
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829 { |
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830 jit_type *new_type = overload ().result (); |
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831 if (new_type != type ()) |
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832 { |
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833 stash_type (new_type); |
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834 return true; |
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835 } |
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836 |
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837 return false; |
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838 } |
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839 |
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840 std::ostream& |
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841 jit_magic_end::print (std::ostream& os, size_t indent) const |
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842 { |
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843 context ctx = resolve_context (); |
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844 short_print (print_indent (os, indent)) << " (" << *ctx.value << ", "; |
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845 return os << *ctx.index << ", " << *ctx.count << ")"; |
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846 } |
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847 |
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848 const jit_function& |
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849 jit_magic_end::overload () const |
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850 { |
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851 const context& ctx = resolve_context (); |
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852 return jit_typeinfo::end (ctx.value, ctx.index, ctx.count); |
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853 } |
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854 |
| 20654 | 855 #endif /* ifdef HAVE_JIT */ |