Mercurial > hg > octave-nkf
annotate libinterp/interp-core/jit-ir.h @ 15337:3f43e9d6d86e
JIT compile anonymous functions
* jit-ir.h (jit_block::front, jit_block::back): New function.
(jit_call::jit_call): New overloads.
(jit_return): New class.
* jit-typeinfo.cc (octave_jit_create_undef): New function.
(jit_operation::to_idx): Correctly handle empty type vector.
(jit_typeinfo::jit_typeinfo): Add destroy_fn and initialize create_undef.
* jit-typeinfo.h (jit_typeinfo::get_any_ptr, jit_typeinfo::destroy,
jit_typeinfo::create_undef): New function.
* pt-jit.cc (jit_convert::jit_convert): Add overload and refactor.
(jit_convert::initialize, jit_convert_llvm::convert_loop,
jit_convert_llvm::convert_function, tree_jit::do_execute,
jit_function_info::jit_function_info, jit_function_info::execute,
jit_function_info::match): New function.
(jit_convert::get_variable): Support function variable lookup.
(jit_convert_llvm::convert): Handle loop/function agnostic stuff.
(jit_convert_llvm::visit): Handle function creation as well.
(tree_jit::execute): Move implementation to tree_jit::do_execute.
(jit_info::compile): Call convert_loop instead of convert.
* pt-jit.h (jit_convert::jit_convert): New overload.
(jit_convert::initialize, jit_convert_llvm::convert_loop,
jit_convert_llvm::convert_function, tree_jit::do_execute): New function.
(jit_convert::create_variable, jit_convert_llvm::initialize): Update signature.
(tree_jit::execute): Made static.
(tree_jit::tree_jit): Made private.
(jit_function_info): New class.
* ov-usr-fcn.cc (octave_user_function::~octave_user_function): Delete jit_info.
(octave_user_function::octave_user_function): Maybe JIT and use is_special_expr
and special_expr.
(octave_user_function::special_expr): New function.
* ov-usr-fcn.h (octave_user_function::is_special_expr,
octave_user_function::special_expr, octave_user_function::get_info,
octave_user_function::stash_info): New function.
* pt-decl.h (tree_decl_elt::name): New function.
* pt-eval.cc (tree_evaluator::visit_simple_for_command,
tree_evaluator::visit_while_command): Use static tree_jit methods.
| author | Max Brister <max@2bass.com> |
|---|---|
| date | Sun, 09 Sep 2012 00:29:00 -0600 |
| parents | 2c0259dc1a82 |
| children | a7b22144318a |
| rev | line source |
|---|---|
| 15016 | 1 /* |
| 2 | |
| 3 Copyright (C) 2012 Max Brister <max@2bass.com> | |
| 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 | |
| 23 #if !defined (octave_jit_ir_h) | |
| 24 #define octave_jit_ir_h 1 | |
| 25 | |
| 26 #ifdef HAVE_LLVM | |
| 27 | |
| 28 #include <list> | |
| 29 #include <stack> | |
| 30 #include <set> | |
| 31 | |
| 32 #include "jit-typeinfo.h" | |
| 33 | |
| 34 // The low level octave jit ir | |
| 35 // this ir is close to llvm, but contains information for doing type inference. | |
| 36 // We convert the octave parse tree to this IR directly. | |
| 37 | |
| 38 #define JIT_VISIT_IR_NOTEMPLATE \ | |
| 39 JIT_METH(block); \ | |
| 40 JIT_METH(branch); \ | |
| 41 JIT_METH(cond_branch); \ | |
| 42 JIT_METH(call); \ | |
| 43 JIT_METH(extract_argument); \ | |
| 44 JIT_METH(store_argument); \ | |
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45 JIT_METH(return); \ |
| 15016 | 46 JIT_METH(phi); \ |
| 47 JIT_METH(variable); \ | |
| 48 JIT_METH(error_check); \ | |
| 49 JIT_METH(assign) \ | |
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50 JIT_METH(argument) \ |
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51 JIT_METH(magic_end) |
| 15016 | 52 |
| 53 #define JIT_VISIT_IR_CONST \ | |
| 54 JIT_METH(const_bool); \ | |
| 55 JIT_METH(const_scalar); \ | |
| 56 JIT_METH(const_complex); \ | |
| 57 JIT_METH(const_index); \ | |
| 58 JIT_METH(const_string); \ | |
| 59 JIT_METH(const_range) | |
| 60 | |
| 61 #define JIT_VISIT_IR_CLASSES \ | |
| 62 JIT_VISIT_IR_NOTEMPLATE \ | |
| 63 JIT_VISIT_IR_CONST | |
| 64 | |
| 65 // forward declare all ir classes | |
| 66 #define JIT_METH(cname) \ | |
| 67 class jit_ ## cname; | |
| 68 | |
| 69 JIT_VISIT_IR_NOTEMPLATE | |
| 70 | |
| 71 #undef JIT_METH | |
| 72 | |
| 73 // ABCs which aren't included in JIT_VISIT_IR_ALL | |
| 74 class jit_instruction; | |
| 75 class jit_terminator; | |
| 76 | |
| 77 template <typename T, jit_type *(*EXTRACT_T)(void), typename PASS_T = T, | |
| 78 bool QUOTE=false> | |
| 79 class jit_const; | |
| 80 | |
| 81 typedef jit_const<bool, jit_typeinfo::get_bool> jit_const_bool; | |
| 82 typedef jit_const<double, jit_typeinfo::get_scalar> jit_const_scalar; | |
| 83 typedef jit_const<Complex, jit_typeinfo::get_complex> jit_const_complex; | |
| 84 typedef jit_const<octave_idx_type, jit_typeinfo::get_index> jit_const_index; | |
| 85 | |
| 86 typedef jit_const<std::string, jit_typeinfo::get_string, const std::string&, | |
| 87 true> jit_const_string; | |
| 88 typedef jit_const<jit_range, jit_typeinfo::get_range, const jit_range&> | |
| 89 jit_const_range; | |
| 90 | |
| 91 class jit_ir_walker; | |
| 92 class jit_use; | |
| 93 | |
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94 // Creates and tracks memory for jit_value and subclasses. |
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95 // Memory managment is simple, all values that are created live as long as the |
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96 // factory. |
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97 class |
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98 jit_factory |
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99 { |
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100 typedef std::list<jit_value *> value_list; |
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101 public: |
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102 ~jit_factory (void); |
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103 |
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104 const value_list& constants (void) const { return mconstants; } |
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105 |
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106 template <typename T> |
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107 T *create (void) |
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108 { |
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109 T *ret = new T (); |
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110 track_value (ret); |
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111 return ret; |
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112 } |
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113 |
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114 #define DECL_ARG(n) const ARG ## n& arg ## n |
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115 #define JIT_CREATE(N) \ |
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116 template <typename T, OCT_MAKE_DECL_LIST (typename, ARG, N)> \ |
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117 T *create (OCT_MAKE_LIST (DECL_ARG, N)) \ |
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118 { \ |
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119 T *ret = new T (OCT_MAKE_ARG_LIST (arg, N)); \ |
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120 track_value (ret); \ |
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121 return ret; \ |
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122 } |
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123 |
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124 JIT_CREATE (1) |
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125 JIT_CREATE (2) |
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126 JIT_CREATE (3) |
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127 JIT_CREATE (4) |
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128 |
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129 #undef JIT_CREATE |
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130 #undef DECL_ARG |
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131 private: |
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132 void track_value (jit_value *v); |
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133 |
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134 value_list all_values; |
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135 |
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136 value_list mconstants; |
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137 }; |
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138 |
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139 // A list of basic blocks (jit_block) which form some body of code. |
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140 // |
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141 // We do not directly inherit from std::list because we need to update the |
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142 // blocks stashed location in push_back and insert. |
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143 class |
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144 jit_block_list |
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145 { |
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146 public: |
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147 typedef std::list<jit_block *>::iterator iterator; |
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148 typedef std::list<jit_block *>::const_iterator const_iterator; |
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149 |
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150 jit_block *back (void) const { return mlist.back (); } |
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151 |
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152 iterator begin (void) { return mlist.begin (); } |
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153 |
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154 const_iterator begin (void) const { return mlist.begin (); } |
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155 |
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156 iterator end (void) { return mlist.end (); } |
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157 |
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158 const_iterator end (void) const { return mlist.end (); } |
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159 |
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160 iterator erase (iterator iter) { return mlist.erase (iter); } |
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161 |
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162 jit_block *front (void) const { return mlist.front (); } |
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163 |
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164 void insert_after (iterator iter, jit_block *ablock); |
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165 |
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166 void insert_after (jit_block *loc, jit_block *ablock); |
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167 |
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168 void insert_before (iterator iter, jit_block *ablock); |
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169 |
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170 void insert_before (jit_block *loc, jit_block *ablock); |
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171 |
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172 std::ostream& print (std::ostream& os, const std::string& header) const; |
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173 |
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174 std::ostream& print_dom (std::ostream& os) const; |
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175 |
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176 void push_back (jit_block *b); |
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177 private: |
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178 std::list<jit_block *> mlist; |
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179 }; |
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180 |
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181 std::ostream& operator<<(std::ostream& os, const jit_block_list& blocks); |
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182 |
| 15016 | 183 class |
| 184 jit_value : public jit_internal_list<jit_value, jit_use> | |
| 185 { | |
| 186 public: | |
| 187 jit_value (void) : llvm_value (0), ty (0), mlast_use (0), | |
| 188 min_worklist (false) {} | |
| 189 | |
| 190 virtual ~jit_value (void); | |
| 191 | |
| 192 bool in_worklist (void) const | |
| 193 { | |
| 194 return min_worklist; | |
| 195 } | |
| 196 | |
| 197 void stash_in_worklist (bool ain_worklist) | |
| 198 { | |
| 199 min_worklist = ain_worklist; | |
| 200 } | |
| 201 | |
| 202 // The block of the first use which is not a jit_error_check | |
| 203 // So this is not necessarily first_use ()->parent (). | |
| 204 jit_block *first_use_block (void); | |
| 205 | |
| 206 // replace all uses with | |
| 207 virtual void replace_with (jit_value *value); | |
| 208 | |
| 209 jit_type *type (void) const { return ty; } | |
| 210 | |
| 211 llvm::Type *type_llvm (void) const | |
| 212 { | |
| 213 return ty ? ty->to_llvm () : 0; | |
| 214 } | |
| 215 | |
| 216 const std::string& type_name (void) const | |
| 217 { | |
| 218 return ty->name (); | |
| 219 } | |
| 220 | |
| 221 void stash_type (jit_type *new_ty) { ty = new_ty; } | |
| 222 | |
| 223 std::string print_string (void) | |
| 224 { | |
| 225 std::stringstream ss; | |
| 226 print (ss); | |
| 227 return ss.str (); | |
| 228 } | |
| 229 | |
| 230 jit_instruction *last_use (void) const { return mlast_use; } | |
| 231 | |
| 232 void stash_last_use (jit_instruction *alast_use) | |
| 233 { | |
| 234 mlast_use = alast_use; | |
| 235 } | |
| 236 | |
| 237 virtual bool needs_release (void) const { return false; } | |
| 238 | |
| 239 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const = 0; | |
| 240 | |
| 241 virtual std::ostream& short_print (std::ostream& os) const | |
| 242 { return print (os); } | |
| 243 | |
| 244 virtual void accept (jit_ir_walker& walker) = 0; | |
| 245 | |
| 246 bool has_llvm (void) const | |
| 247 { | |
| 248 return llvm_value; | |
| 249 } | |
| 250 | |
| 251 llvm::Value *to_llvm (void) const | |
| 252 { | |
| 253 assert (llvm_value); | |
| 254 return llvm_value; | |
| 255 } | |
| 256 | |
| 257 void stash_llvm (llvm::Value *compiled) | |
| 258 { | |
| 259 llvm_value = compiled; | |
| 260 } | |
| 261 | |
| 262 protected: | |
| 263 std::ostream& print_indent (std::ostream& os, size_t indent = 0) const | |
| 264 { | |
| 265 for (size_t i = 0; i < indent * 8; ++i) | |
| 266 os << " "; | |
| 267 return os; | |
| 268 } | |
| 269 | |
| 270 llvm::Value *llvm_value; | |
| 271 private: | |
| 272 jit_type *ty; | |
| 273 jit_instruction *mlast_use; | |
| 274 bool min_worklist; | |
| 275 }; | |
| 276 | |
| 277 std::ostream& operator<< (std::ostream& os, const jit_value& value); | |
| 278 std::ostream& jit_print (std::ostream& os, jit_value *avalue); | |
| 279 | |
| 280 class | |
| 281 jit_use : public jit_internal_node<jit_value, jit_use> | |
| 282 { | |
| 283 public: | |
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284 // some compilers don't allow us to use jit_internal_node without template |
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285 // paremeters |
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286 typedef jit_internal_node<jit_value, jit_use> PARENT_T; |
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287 |
| 15016 | 288 jit_use (void) : muser (0), mindex (0) {} |
| 289 | |
| 290 // we should really have a move operator, but not until c++11 :( | |
| 291 jit_use (const jit_use& use) : muser (0), mindex (0) | |
| 292 { | |
| 293 *this = use; | |
| 294 } | |
| 295 | |
| 296 jit_use& operator= (const jit_use& use) | |
| 297 { | |
| 298 stash_value (use.value (), use.user (), use.index ()); | |
| 299 return *this; | |
| 300 } | |
| 301 | |
| 302 size_t index (void) const { return mindex; } | |
| 303 | |
| 304 jit_instruction *user (void) const { return muser; } | |
| 305 | |
| 306 jit_block *user_parent (void) const; | |
| 307 | |
| 308 std::list<jit_block *> user_parent_location (void) const; | |
| 309 | |
| 310 void stash_value (jit_value *avalue, jit_instruction *auser = 0, | |
| 311 size_t aindex = -1) | |
| 312 { | |
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313 PARENT_T::stash_value (avalue); |
| 15016 | 314 mindex = aindex; |
| 315 muser = auser; | |
| 316 } | |
| 317 private: | |
| 318 jit_instruction *muser; | |
| 319 size_t mindex; | |
| 320 }; | |
| 321 | |
| 322 class | |
| 323 jit_instruction : public jit_value | |
| 324 { | |
| 325 public: | |
| 326 // FIXME: this code could be so much pretier with varadic templates... | |
| 327 jit_instruction (void) : mid (next_id ()), mparent (0) | |
| 328 {} | |
| 329 | |
| 330 jit_instruction (size_t nargs) : mid (next_id ()), mparent (0) | |
| 331 { | |
| 332 already_infered.reserve (nargs); | |
| 333 marguments.reserve (nargs); | |
| 334 } | |
| 335 | |
| 336 #define STASH_ARG(i) stash_argument (i, arg ## i); | |
| 337 #define JIT_INSTRUCTION_CTOR(N) \ | |
| 338 jit_instruction (OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 339 : already_infered (N), marguments (N), mid (next_id ()), mparent (0) \ | |
| 340 { \ | |
| 341 OCT_ITERATE_MACRO (STASH_ARG, N); \ | |
| 342 } | |
| 343 | |
| 344 JIT_INSTRUCTION_CTOR(1) | |
| 345 JIT_INSTRUCTION_CTOR(2) | |
| 346 JIT_INSTRUCTION_CTOR(3) | |
| 347 JIT_INSTRUCTION_CTOR(4) | |
| 348 | |
| 349 #undef STASH_ARG | |
| 350 #undef JIT_INSTRUCTION_CTOR | |
| 351 | |
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352 jit_instruction (const std::vector<jit_value *>& aarguments) |
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353 : already_infered (aarguments.size ()), marguments (aarguments.size ()), |
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354 mid (next_id ()), mparent (0) |
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355 { |
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356 for (size_t i = 0; i < aarguments.size (); ++i) |
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357 stash_argument (i, aarguments[i]); |
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358 } |
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359 |
| 15016 | 360 static void reset_ids (void) |
| 361 { | |
| 362 next_id (true); | |
| 363 } | |
| 364 | |
| 365 jit_value *argument (size_t i) const | |
| 366 { | |
| 367 return marguments[i].value (); | |
| 368 } | |
| 369 | |
| 370 llvm::Value *argument_llvm (size_t i) const | |
| 371 { | |
| 372 assert (argument (i)); | |
| 373 return argument (i)->to_llvm (); | |
| 374 } | |
| 375 | |
| 376 jit_type *argument_type (size_t i) const | |
| 377 { | |
| 378 return argument (i)->type (); | |
| 379 } | |
| 380 | |
| 381 llvm::Type *argument_type_llvm (size_t i) const | |
| 382 { | |
| 383 assert (argument (i)); | |
| 384 return argument_type (i)->to_llvm (); | |
| 385 } | |
| 386 | |
| 387 std::ostream& print_argument (std::ostream& os, size_t i) const | |
| 388 { | |
| 389 if (argument (i)) | |
| 390 return argument (i)->short_print (os); | |
| 391 else | |
| 392 return os << "NULL"; | |
| 393 } | |
| 394 | |
| 395 void stash_argument (size_t i, jit_value *arg) | |
| 396 { | |
| 397 marguments[i].stash_value (arg, this, i); | |
| 398 } | |
| 399 | |
| 400 void push_argument (jit_value *arg) | |
| 401 { | |
| 402 marguments.push_back (jit_use ()); | |
| 403 stash_argument (marguments.size () - 1, arg); | |
| 404 already_infered.push_back (0); | |
| 405 } | |
| 406 | |
| 407 size_t argument_count (void) const | |
| 408 { | |
| 409 return marguments.size (); | |
| 410 } | |
| 411 | |
| 412 void resize_arguments (size_t acount, jit_value *adefault = 0) | |
| 413 { | |
| 414 size_t old = marguments.size (); | |
| 415 marguments.resize (acount); | |
| 416 already_infered.resize (acount); | |
| 417 | |
| 418 if (adefault) | |
| 419 for (size_t i = old; i < acount; ++i) | |
| 420 stash_argument (i, adefault); | |
| 421 } | |
| 422 | |
| 423 const std::vector<jit_use>& arguments (void) const { return marguments; } | |
| 424 | |
| 425 // argument types which have been infered already | |
| 426 const std::vector<jit_type *>& argument_types (void) const | |
| 427 { return already_infered; } | |
| 428 | |
| 429 virtual void push_variable (void) {} | |
| 430 | |
| 431 virtual void pop_variable (void) {} | |
| 432 | |
| 433 virtual void construct_ssa (void) | |
| 434 { | |
| 435 do_construct_ssa (0, argument_count ()); | |
| 436 } | |
| 437 | |
| 438 virtual bool infer (void) { return false; } | |
| 439 | |
| 440 void remove (void); | |
| 441 | |
| 442 virtual std::ostream& short_print (std::ostream& os) const; | |
| 443 | |
| 444 jit_block *parent (void) const { return mparent; } | |
| 445 | |
| 446 std::list<jit_instruction *>::iterator location (void) const | |
| 447 { | |
| 448 return mlocation; | |
| 449 } | |
| 450 | |
| 451 llvm::BasicBlock *parent_llvm (void) const; | |
| 452 | |
| 453 void stash_parent (jit_block *aparent, | |
| 454 std::list<jit_instruction *>::iterator alocation) | |
| 455 { | |
| 456 mparent = aparent; | |
| 457 mlocation = alocation; | |
| 458 } | |
| 459 | |
| 460 size_t id (void) const { return mid; } | |
| 461 protected: | |
| 462 | |
| 463 // Do SSA replacement on arguments in [start, end) | |
| 464 void do_construct_ssa (size_t start, size_t end); | |
| 465 | |
| 466 std::vector<jit_type *> already_infered; | |
| 467 private: | |
| 468 static size_t next_id (bool reset = false) | |
| 469 { | |
| 470 static size_t ret = 0; | |
| 471 if (reset) | |
| 472 return ret = 0; | |
| 473 | |
| 474 return ret++; | |
| 475 } | |
| 476 | |
| 477 std::vector<jit_use> marguments; | |
| 478 | |
| 479 size_t mid; | |
| 480 jit_block *mparent; | |
| 481 std::list<jit_instruction *>::iterator mlocation; | |
| 482 }; | |
| 483 | |
| 484 // defnie accept methods for subclasses | |
| 485 #define JIT_VALUE_ACCEPT \ | |
| 486 virtual void accept (jit_ir_walker& walker); | |
| 487 | |
| 488 // for use as a dummy argument during conversion to LLVM | |
| 489 class | |
| 490 jit_argument : public jit_value | |
| 491 { | |
| 492 public: | |
| 493 jit_argument (jit_type *atype, llvm::Value *avalue) | |
| 494 { | |
| 495 stash_type (atype); | |
| 496 stash_llvm (avalue); | |
| 497 } | |
| 498 | |
| 499 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 500 { | |
| 501 print_indent (os, indent); | |
| 502 return jit_print (os, type ()) << ": DUMMY"; | |
| 503 } | |
| 504 | |
| 505 JIT_VALUE_ACCEPT; | |
| 506 }; | |
| 507 | |
| 508 template <typename T, jit_type *(*EXTRACT_T)(void), typename PASS_T, | |
| 509 bool QUOTE> | |
| 510 class | |
| 511 jit_const : public jit_value | |
| 512 { | |
| 513 public: | |
| 514 typedef PASS_T pass_t; | |
| 515 | |
| 516 jit_const (PASS_T avalue) : mvalue (avalue) | |
| 517 { | |
| 518 stash_type (EXTRACT_T ()); | |
| 519 } | |
| 520 | |
| 521 PASS_T value (void) const { return mvalue; } | |
| 522 | |
| 523 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 524 { | |
| 525 print_indent (os, indent); | |
| 526 jit_print (os, type ()) << ": "; | |
| 527 if (QUOTE) | |
| 528 os << "\""; | |
| 529 os << mvalue; | |
| 530 if (QUOTE) | |
| 531 os << "\""; | |
| 532 return os; | |
| 533 } | |
| 534 | |
| 535 JIT_VALUE_ACCEPT; | |
| 536 private: | |
| 537 T mvalue; | |
| 538 }; | |
| 539 | |
| 540 class jit_phi_incomming; | |
| 541 | |
| 542 class | |
| 543 jit_block : public jit_value, public jit_internal_list<jit_block, | |
| 544 jit_phi_incomming> | |
| 545 { | |
| 546 typedef jit_internal_list<jit_block, jit_phi_incomming> ILIST_T; | |
| 547 public: | |
| 548 typedef std::list<jit_instruction *> instruction_list; | |
| 549 typedef instruction_list::iterator iterator; | |
| 550 typedef instruction_list::const_iterator const_iterator; | |
| 551 | |
| 552 typedef std::set<jit_block *> df_set; | |
| 553 typedef df_set::const_iterator df_iterator; | |
| 554 | |
| 555 static const size_t NO_ID = static_cast<size_t> (-1); | |
| 556 | |
| 557 jit_block (const std::string& aname, size_t avisit_count = 0) | |
| 558 : mvisit_count (avisit_count), mid (NO_ID), idom (0), mname (aname), | |
| 559 malive (false) | |
| 560 {} | |
| 561 | |
| 562 virtual void replace_with (jit_value *value); | |
| 563 | |
| 564 void replace_in_phi (jit_block *ablock, jit_block *with); | |
| 565 | |
| 566 // we have a new internal list, but we want to stay compatable with jit_value | |
| 567 jit_use *first_use (void) const { return jit_value::first_use (); } | |
| 568 | |
| 569 size_t use_count (void) const { return jit_value::use_count (); } | |
| 570 | |
| 571 // if a block is alive, then it might be visited during execution | |
| 572 bool alive (void) const { return malive; } | |
| 573 | |
| 574 void mark_alive (void) { malive = true; } | |
| 575 | |
| 576 // If we can merge with a successor, do so and return the now empty block | |
| 577 jit_block *maybe_merge (); | |
| 578 | |
| 579 // merge another block into this block, leaving the merge block empty | |
| 580 void merge (jit_block& merge); | |
| 581 | |
| 582 const std::string& name (void) const { return mname; } | |
| 583 | |
| 584 jit_instruction *prepend (jit_instruction *instr); | |
| 585 | |
| 586 jit_instruction *prepend_after_phi (jit_instruction *instr); | |
| 587 | |
| 588 template <typename T> | |
| 589 T *append (T *instr) | |
| 590 { | |
| 591 internal_append (instr); | |
| 592 return instr; | |
| 593 } | |
| 594 | |
| 595 jit_instruction *insert_before (iterator loc, jit_instruction *instr); | |
| 596 | |
| 597 jit_instruction *insert_before (jit_instruction *loc, jit_instruction *instr) | |
| 598 { | |
| 599 return insert_before (loc->location (), instr); | |
| 600 } | |
| 601 | |
| 602 jit_instruction *insert_after (iterator loc, jit_instruction *instr); | |
| 603 | |
| 604 jit_instruction *insert_after (jit_instruction *loc, jit_instruction *instr) | |
| 605 { | |
| 606 return insert_after (loc->location (), instr); | |
| 607 } | |
| 608 | |
| 609 iterator remove (iterator iter) | |
| 610 { | |
| 611 jit_instruction *instr = *iter; | |
| 612 iter = instructions.erase (iter); | |
| 613 instr->stash_parent (0, instructions.end ()); | |
| 614 return iter; | |
| 615 } | |
| 616 | |
| 617 jit_terminator *terminator (void) const; | |
| 618 | |
| 619 // is the jump from pred alive? | |
| 620 bool branch_alive (jit_block *asucc) const; | |
| 621 | |
| 622 jit_block *successor (size_t i) const; | |
| 623 | |
| 624 size_t successor_count (void) const; | |
| 625 | |
| 626 iterator begin (void) { return instructions.begin (); } | |
| 627 | |
| 628 const_iterator begin (void) const { return instructions.begin (); } | |
| 629 | |
| 630 iterator end (void) { return instructions.end (); } | |
| 631 | |
| 632 const_iterator end (void) const { return instructions.end (); } | |
| 633 | |
| 634 iterator phi_begin (void); | |
| 635 | |
| 636 iterator phi_end (void); | |
| 637 | |
| 638 iterator nonphi_begin (void); | |
| 639 | |
| 640 // must label before id is valid | |
| 641 size_t id (void) const { return mid; } | |
| 642 | |
| 643 // dominance frontier | |
| 644 const df_set& df (void) const { return mdf; } | |
| 645 | |
| 646 df_iterator df_begin (void) const { return mdf.begin (); } | |
| 647 | |
| 648 df_iterator df_end (void) const { return mdf.end (); } | |
| 649 | |
| 650 // label with a RPO walk | |
| 651 void label (void) | |
| 652 { | |
| 653 size_t number = 0; | |
| 654 label (mvisit_count, number); | |
| 655 } | |
| 656 | |
| 657 void label (size_t avisit_count, size_t& number) | |
| 658 { | |
| 659 if (visited (avisit_count)) | |
| 660 return; | |
| 661 | |
| 662 for (jit_use *use = first_use (); use; use = use->next ()) | |
| 663 { | |
| 664 jit_block *pred = use->user_parent (); | |
| 665 pred->label (avisit_count, number); | |
| 666 } | |
| 667 | |
| 668 mid = number++; | |
| 669 } | |
| 670 | |
| 671 // See for idom computation algorithm | |
| 672 // Cooper, Keith D.; Harvey, Timothy J; and Kennedy, Ken (2001). | |
| 673 // "A Simple, Fast Dominance Algorithm" | |
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674 void compute_idom (jit_block& entry_block) |
| 15016 | 675 { |
| 676 bool changed; | |
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677 entry_block.idom = &entry_block; |
| 15016 | 678 do |
| 679 changed = update_idom (mvisit_count); | |
| 680 while (changed); | |
| 681 } | |
| 682 | |
| 683 // compute dominance frontier | |
| 684 void compute_df (void) | |
| 685 { | |
| 686 compute_df (mvisit_count); | |
| 687 } | |
| 688 | |
| 689 void create_dom_tree (void) | |
| 690 { | |
| 691 create_dom_tree (mvisit_count); | |
| 692 } | |
| 693 | |
| 694 jit_block *dom_successor (size_t idx) const | |
| 695 { | |
| 696 return dom_succ[idx]; | |
| 697 } | |
| 698 | |
| 699 size_t dom_successor_count (void) const | |
| 700 { | |
| 701 return dom_succ.size (); | |
| 702 } | |
| 703 | |
| 704 // call pop_varaible on all instructions | |
| 705 void pop_all (void); | |
| 706 | |
| 707 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 708 { | |
| 709 print_indent (os, indent); | |
| 710 short_print (os) << ": %pred = "; | |
| 711 for (jit_use *use = first_use (); use; use = use->next ()) | |
| 712 { | |
| 713 jit_block *pred = use->user_parent (); | |
| 714 os << *pred; | |
| 715 if (use->next ()) | |
| 716 os << ", "; | |
| 717 } | |
| 718 os << std::endl; | |
| 719 | |
| 720 for (const_iterator iter = begin (); iter != end (); ++iter) | |
| 721 { | |
| 722 jit_instruction *instr = *iter; | |
| 723 instr->print (os, indent + 1) << std::endl; | |
| 724 } | |
| 725 return os; | |
| 726 } | |
| 727 | |
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728 jit_block *maybe_split (jit_factory& factory, jit_block_list& blocks, |
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729 jit_block *asuccessor); |
| 15016 | 730 |
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731 jit_block *maybe_split (jit_factory& factory, jit_block_list& blocks, |
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732 jit_block& asuccessor) |
| 15016 | 733 { |
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734 return maybe_split (factory, blocks, &asuccessor); |
| 15016 | 735 } |
| 736 | |
| 737 // print dominator infomration | |
| 738 std::ostream& print_dom (std::ostream& os) const; | |
| 739 | |
| 740 virtual std::ostream& short_print (std::ostream& os) const | |
| 741 { | |
| 742 os << mname; | |
| 743 if (mid != NO_ID) | |
| 744 os << mid; | |
| 745 return os; | |
| 746 } | |
| 747 | |
| 748 llvm::BasicBlock *to_llvm (void) const; | |
| 749 | |
| 750 std::list<jit_block *>::iterator location (void) const | |
| 751 { return mlocation; } | |
| 752 | |
| 753 void stash_location (std::list<jit_block *>::iterator alocation) | |
| 754 { mlocation = alocation; } | |
| 755 | |
| 756 // used to prevent visiting the same node twice in the graph | |
| 757 size_t visit_count (void) const { return mvisit_count; } | |
| 758 | |
| 759 // check if this node has been visited yet at the given visit count. If we | |
| 760 // have not been visited yet, mark us as visited. | |
| 761 bool visited (size_t avisit_count) | |
| 762 { | |
| 763 if (mvisit_count <= avisit_count) | |
| 764 { | |
| 765 mvisit_count = avisit_count + 1; | |
| 766 return false; | |
| 767 } | |
| 768 | |
| 769 return true; | |
| 770 } | |
| 771 | |
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772 jit_instruction *front (void) { return instructions.front (); } |
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773 |
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774 jit_instruction *back (void) { return instructions.back (); } |
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775 |
| 15016 | 776 JIT_VALUE_ACCEPT; |
| 777 private: | |
| 778 void internal_append (jit_instruction *instr); | |
| 779 | |
| 780 void compute_df (size_t avisit_count); | |
| 781 | |
| 782 bool update_idom (size_t avisit_count); | |
| 783 | |
| 784 void create_dom_tree (size_t avisit_count); | |
| 785 | |
| 786 static jit_block *idom_intersect (jit_block *i, jit_block *j); | |
| 787 | |
| 788 size_t mvisit_count; | |
| 789 size_t mid; | |
| 790 jit_block *idom; | |
| 791 df_set mdf; | |
| 792 std::vector<jit_block *> dom_succ; | |
| 793 std::string mname; | |
| 794 instruction_list instructions; | |
| 795 bool malive; | |
| 796 std::list<jit_block *>::iterator mlocation; | |
| 797 }; | |
| 798 | |
| 799 // keeps track of phi functions that use a block on incomming edges | |
| 800 class | |
| 801 jit_phi_incomming : public jit_internal_node<jit_block, jit_phi_incomming> | |
| 802 { | |
| 803 public: | |
| 804 jit_phi_incomming (void) : muser (0) {} | |
| 805 | |
| 806 jit_phi_incomming (jit_phi *auser) : muser (auser) {} | |
| 807 | |
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808 jit_phi_incomming (const jit_phi_incomming& use) |
| 15016 | 809 { |
| 810 *this = use; | |
| 811 } | |
| 812 | |
| 813 jit_phi_incomming& operator= (const jit_phi_incomming& use) | |
| 814 { | |
| 815 stash_value (use.value ()); | |
| 816 muser = use.muser; | |
| 817 return *this; | |
| 818 } | |
| 819 | |
| 820 jit_phi *user (void) const { return muser; } | |
| 821 | |
| 822 jit_block *user_parent (void) const; | |
| 823 private: | |
| 824 jit_phi *muser; | |
| 825 }; | |
| 826 | |
| 827 // A non-ssa variable | |
| 828 class | |
| 829 jit_variable : public jit_value | |
| 830 { | |
| 831 public: | |
| 832 jit_variable (const std::string& aname) : mname (aname), mlast_use (0) {} | |
| 833 | |
| 834 const std::string &name (void) const { return mname; } | |
| 835 | |
| 836 // manipulate the value_stack, for use during SSA construction. The top of the | |
| 837 // value stack represents the current value for this variable | |
| 838 bool has_top (void) const | |
| 839 { | |
| 840 return ! value_stack.empty (); | |
| 841 } | |
| 842 | |
| 843 jit_value *top (void) const | |
| 844 { | |
| 845 return value_stack.top (); | |
| 846 } | |
| 847 | |
| 848 void push (jit_instruction *v) | |
| 849 { | |
| 850 value_stack.push (v); | |
| 851 mlast_use = v; | |
| 852 } | |
| 853 | |
| 854 void pop (void) | |
| 855 { | |
| 856 value_stack.pop (); | |
| 857 } | |
| 858 | |
| 859 jit_instruction *last_use (void) const | |
| 860 { | |
| 861 return mlast_use; | |
| 862 } | |
| 863 | |
| 864 void stash_last_use (jit_instruction *instr) | |
| 865 { | |
| 866 mlast_use = instr; | |
| 867 } | |
| 868 | |
| 869 // blocks in which we are used | |
| 870 void use_blocks (jit_block::df_set& result) | |
| 871 { | |
| 872 jit_use *use = first_use (); | |
| 873 while (use) | |
| 874 { | |
| 875 result.insert (use->user_parent ()); | |
| 876 use = use->next (); | |
| 877 } | |
| 878 } | |
| 879 | |
| 880 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 881 { | |
| 882 return print_indent (os, indent) << mname; | |
| 883 } | |
| 884 | |
| 885 JIT_VALUE_ACCEPT; | |
| 886 private: | |
| 887 std::string mname; | |
| 888 std::stack<jit_value *> value_stack; | |
| 889 jit_instruction *mlast_use; | |
| 890 }; | |
| 891 | |
| 892 class | |
| 893 jit_assign_base : public jit_instruction | |
| 894 { | |
| 895 public: | |
| 896 jit_assign_base (jit_variable *adest) : jit_instruction (), mdest (adest) {} | |
| 897 | |
| 898 jit_assign_base (jit_variable *adest, size_t npred) : jit_instruction (npred), | |
| 899 mdest (adest) {} | |
| 900 | |
| 901 jit_assign_base (jit_variable *adest, jit_value *arg0, jit_value *arg1) | |
| 902 : jit_instruction (arg0, arg1), mdest (adest) {} | |
| 903 | |
| 904 jit_variable *dest (void) const { return mdest; } | |
| 905 | |
| 906 virtual void push_variable (void) | |
| 907 { | |
| 908 mdest->push (this); | |
| 909 } | |
| 910 | |
| 911 virtual void pop_variable (void) | |
| 912 { | |
| 913 mdest->pop (); | |
| 914 } | |
| 915 | |
| 916 virtual std::ostream& short_print (std::ostream& os) const | |
| 917 { | |
| 918 if (type ()) | |
| 919 jit_print (os, type ()) << ": "; | |
| 920 | |
| 921 dest ()->short_print (os); | |
| 922 return os << "#" << id (); | |
| 923 } | |
| 924 private: | |
| 925 jit_variable *mdest; | |
| 926 }; | |
| 927 | |
| 928 class | |
| 929 jit_assign : public jit_assign_base | |
| 930 { | |
| 931 public: | |
| 932 jit_assign (jit_variable *adest, jit_value *asrc) | |
| 933 : jit_assign_base (adest, adest, asrc), martificial (false) {} | |
| 934 | |
| 935 jit_value *overwrite (void) const | |
| 936 { | |
| 937 return argument (0); | |
| 938 } | |
| 939 | |
| 940 jit_value *src (void) const | |
| 941 { | |
| 942 return argument (1); | |
| 943 } | |
| 944 | |
| 945 // variables don't get modified in an SSA, but COW requires we modify | |
| 946 // variables. An artificial assign is for when a variable gets modified. We | |
| 947 // need an assign in the SSA, but the reference counts shouldn't be updated. | |
| 948 bool artificial (void) const { return martificial; } | |
| 949 | |
| 950 void mark_artificial (void) { martificial = true; } | |
| 951 | |
| 952 virtual bool infer (void) | |
| 953 { | |
| 954 jit_type *stype = src ()->type (); | |
| 955 if (stype != type()) | |
| 956 { | |
| 957 stash_type (stype); | |
| 958 return true; | |
| 959 } | |
| 960 | |
| 961 return false; | |
| 962 } | |
| 963 | |
| 964 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 965 { | |
| 966 print_indent (os, indent) << *this << " = " << *src (); | |
| 967 | |
| 968 if (artificial ()) | |
| 969 os << " [artificial]"; | |
| 970 | |
| 971 return os; | |
| 972 } | |
| 973 | |
| 974 JIT_VALUE_ACCEPT; | |
| 975 private: | |
| 976 bool martificial; | |
| 977 }; | |
| 978 | |
| 979 class | |
| 980 jit_phi : public jit_assign_base | |
| 981 { | |
| 982 public: | |
| 983 jit_phi (jit_variable *adest, size_t npred) | |
| 984 : jit_assign_base (adest, npred) | |
| 985 { | |
| 986 mincomming.reserve (npred); | |
| 987 } | |
| 988 | |
| 989 // removes arguments form dead incomming jumps | |
| 990 bool prune (void); | |
| 991 | |
| 992 void add_incomming (jit_block *from, jit_value *value) | |
| 993 { | |
| 994 push_argument (value); | |
| 995 mincomming.push_back (jit_phi_incomming (this)); | |
| 996 mincomming[mincomming.size () - 1].stash_value (from); | |
| 997 } | |
| 998 | |
| 999 jit_block *incomming (size_t i) const | |
| 1000 { | |
| 1001 return mincomming[i].value (); | |
| 1002 } | |
| 1003 | |
| 1004 llvm::BasicBlock *incomming_llvm (size_t i) const | |
| 1005 { | |
| 1006 return incomming (i)->to_llvm (); | |
| 1007 } | |
| 1008 | |
| 1009 virtual void construct_ssa (void) {} | |
| 1010 | |
| 1011 virtual bool infer (void); | |
| 1012 | |
| 1013 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1014 { | |
| 1015 std::stringstream ss; | |
| 1016 print_indent (ss, indent); | |
| 1017 short_print (ss) << " phi "; | |
| 1018 std::string ss_str = ss.str (); | |
| 1019 std::string indent_str (ss_str.size (), ' '); | |
| 1020 os << ss_str; | |
| 1021 | |
| 1022 for (size_t i = 0; i < argument_count (); ++i) | |
| 1023 { | |
| 1024 if (i > 0) | |
| 1025 os << indent_str; | |
| 1026 os << "| "; | |
| 1027 | |
| 1028 os << *incomming (i) << " -> "; | |
| 1029 os << *argument (i); | |
| 1030 | |
| 1031 if (i + 1 < argument_count ()) | |
| 1032 os << std::endl; | |
| 1033 } | |
| 1034 | |
| 1035 return os; | |
| 1036 } | |
| 1037 | |
| 1038 llvm::PHINode *to_llvm (void) const; | |
| 1039 | |
| 1040 JIT_VALUE_ACCEPT; | |
| 1041 private: | |
| 1042 std::vector<jit_phi_incomming> mincomming; | |
| 1043 }; | |
| 1044 | |
| 1045 class | |
| 1046 jit_terminator : public jit_instruction | |
| 1047 { | |
| 1048 public: | |
| 1049 #define JIT_TERMINATOR_CONST(N) \ | |
| 1050 jit_terminator (size_t asuccessor_count, \ | |
| 1051 OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 1052 : jit_instruction (OCT_MAKE_ARG_LIST (arg, N)), \ | |
| 1053 malive (asuccessor_count, false) {} | |
| 1054 | |
| 1055 JIT_TERMINATOR_CONST (1) | |
| 1056 JIT_TERMINATOR_CONST (2) | |
| 1057 JIT_TERMINATOR_CONST (3) | |
| 1058 | |
| 1059 #undef JIT_TERMINATOR_CONST | |
| 1060 | |
| 1061 jit_block *successor (size_t idx = 0) const | |
| 1062 { | |
| 1063 return static_cast<jit_block *> (argument (idx)); | |
| 1064 } | |
| 1065 | |
| 1066 llvm::BasicBlock *successor_llvm (size_t idx = 0) const | |
| 1067 { | |
| 1068 return successor (idx)->to_llvm (); | |
| 1069 } | |
| 1070 | |
| 1071 size_t successor_index (const jit_block *asuccessor) const; | |
| 1072 | |
| 1073 std::ostream& print_successor (std::ostream& os, size_t idx = 0) const | |
| 1074 { | |
| 1075 if (alive (idx)) | |
| 1076 os << "[live] "; | |
| 1077 else | |
| 1078 os << "[dead] "; | |
| 1079 | |
| 1080 return successor (idx)->short_print (os); | |
| 1081 } | |
| 1082 | |
| 1083 // Check if the jump to successor is live | |
| 1084 bool alive (const jit_block *asuccessor) const | |
| 1085 { | |
| 1086 return alive (successor_index (asuccessor)); | |
| 1087 } | |
| 1088 | |
| 1089 bool alive (size_t idx) const { return malive[idx]; } | |
| 1090 | |
| 1091 bool alive (int idx) const { return malive[idx]; } | |
| 1092 | |
| 1093 size_t successor_count (void) const { return malive.size (); } | |
| 1094 | |
| 1095 virtual bool infer (void); | |
| 1096 | |
| 1097 llvm::TerminatorInst *to_llvm (void) const; | |
| 1098 protected: | |
| 1099 virtual bool check_alive (size_t) const { return true; } | |
| 1100 private: | |
| 1101 std::vector<bool> malive; | |
| 1102 }; | |
| 1103 | |
| 1104 class | |
| 1105 jit_branch : public jit_terminator | |
| 1106 { | |
| 1107 public: | |
| 1108 jit_branch (jit_block *succ) : jit_terminator (1, succ) {} | |
| 1109 | |
| 1110 virtual size_t successor_count (void) const { return 1; } | |
| 1111 | |
| 1112 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1113 { | |
| 1114 print_indent (os, indent) << "branch: "; | |
| 1115 return print_successor (os); | |
| 1116 } | |
| 1117 | |
| 1118 JIT_VALUE_ACCEPT; | |
| 1119 }; | |
| 1120 | |
| 1121 class | |
| 1122 jit_cond_branch : public jit_terminator | |
| 1123 { | |
| 1124 public: | |
| 1125 jit_cond_branch (jit_value *c, jit_block *ctrue, jit_block *cfalse) | |
| 1126 : jit_terminator (2, ctrue, cfalse, c) {} | |
| 1127 | |
| 1128 jit_value *cond (void) const { return argument (2); } | |
| 1129 | |
| 1130 std::ostream& print_cond (std::ostream& os) const | |
| 1131 { | |
| 1132 return cond ()->short_print (os); | |
| 1133 } | |
| 1134 | |
| 1135 llvm::Value *cond_llvm (void) const | |
| 1136 { | |
| 1137 return cond ()->to_llvm (); | |
| 1138 } | |
| 1139 | |
| 1140 virtual size_t successor_count (void) const { return 2; } | |
| 1141 | |
| 1142 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1143 { | |
| 1144 print_indent (os, indent) << "cond_branch: "; | |
| 1145 print_cond (os) << ", "; | |
| 1146 print_successor (os, 0) << ", "; | |
| 1147 return print_successor (os, 1); | |
| 1148 } | |
| 1149 | |
| 1150 JIT_VALUE_ACCEPT; | |
| 1151 }; | |
| 1152 | |
| 1153 class | |
| 1154 jit_call : public jit_instruction | |
| 1155 { | |
| 1156 public: | |
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1157 jit_call (const jit_operation& (*aoperation) (void)) |
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1158 : moperation (aoperation ()) |
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1159 { |
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1160 const jit_function& ol = overload (); |
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1161 if (ol.valid ()) |
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1162 stash_type (ol.result ()); |
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1163 } |
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1164 |
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1165 jit_call (const jit_operation& aoperation) : moperation (aoperation) |
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1166 { |
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1167 const jit_function& ol = overload (); |
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1168 if (ol.valid ()) |
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1169 stash_type (ol.result ()); |
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1170 } |
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1171 |
| 15016 | 1172 #define JIT_CALL_CONST(N) \ |
| 1173 jit_call (const jit_operation& aoperation, \ | |
| 1174 OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 1175 : jit_instruction (OCT_MAKE_ARG_LIST (arg, N)), moperation (aoperation) {} \ | |
| 1176 \ | |
| 1177 jit_call (const jit_operation& (*aoperation) (void), \ | |
| 1178 OCT_MAKE_DECL_LIST (jit_value *, arg, N)) \ | |
| 1179 : jit_instruction (OCT_MAKE_ARG_LIST (arg, N)), moperation (aoperation ()) \ | |
| 1180 {} | |
| 1181 | |
| 1182 JIT_CALL_CONST (1) | |
| 1183 JIT_CALL_CONST (2) | |
| 1184 JIT_CALL_CONST (3) | |
| 1185 JIT_CALL_CONST (4) | |
| 1186 | |
| 1187 #undef JIT_CALL_CONST | |
| 1188 | |
| 15067 | 1189 jit_call (const jit_operation& aoperation, |
| 1190 const std::vector<jit_value *>& args) | |
| 1191 : jit_instruction (args), moperation (aoperation) | |
| 1192 {} | |
| 15016 | 1193 |
| 1194 const jit_operation& operation (void) const { return moperation; } | |
| 1195 | |
| 1196 bool can_error (void) const | |
| 1197 { | |
| 1198 return overload ().can_error (); | |
| 1199 } | |
| 1200 | |
| 1201 const jit_function& overload (void) const | |
| 1202 { | |
| 1203 return moperation.overload (argument_types ()); | |
| 1204 } | |
| 1205 | |
| 1206 virtual bool needs_release (void) const | |
| 1207 { | |
| 1208 return type () && jit_typeinfo::get_release (type ()).valid (); | |
| 1209 } | |
| 1210 | |
| 1211 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1212 { | |
| 1213 print_indent (os, indent); | |
| 1214 | |
| 1215 if (use_count ()) | |
| 1216 short_print (os) << " = "; | |
| 1217 os << "call " << moperation.name () << " ("; | |
| 1218 | |
| 1219 for (size_t i = 0; i < argument_count (); ++i) | |
| 1220 { | |
| 1221 print_argument (os, i); | |
| 1222 if (i + 1 < argument_count ()) | |
| 1223 os << ", "; | |
| 1224 } | |
| 1225 return os << ")"; | |
| 1226 } | |
| 1227 | |
| 1228 virtual bool infer (void); | |
| 1229 | |
| 1230 JIT_VALUE_ACCEPT; | |
| 1231 private: | |
| 1232 const jit_operation& moperation; | |
| 1233 }; | |
| 1234 | |
| 1235 // FIXME: This is just ugly... | |
| 1236 // checks error_state, if error_state is false then goto the normal branche, | |
| 1237 // otherwise goto the error branch | |
| 1238 class | |
| 1239 jit_error_check : public jit_terminator | |
| 1240 { | |
| 1241 public: | |
| 1242 jit_error_check (jit_call *acheck_for, jit_block *normal, jit_block *error) | |
| 1243 : jit_terminator (2, error, normal, acheck_for) {} | |
| 1244 | |
| 1245 jit_call *check_for (void) const | |
| 1246 { | |
| 1247 return static_cast<jit_call *> (argument (2)); | |
| 1248 } | |
| 1249 | |
| 1250 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1251 { | |
| 1252 print_indent (os, indent) << "error_check " << *check_for () << ", "; | |
| 1253 print_successor (os, 1) << ", "; | |
| 1254 return print_successor (os, 0); | |
| 1255 } | |
| 1256 | |
| 1257 JIT_VALUE_ACCEPT; | |
| 1258 protected: | |
| 1259 virtual bool check_alive (size_t idx) const | |
| 1260 { | |
| 1261 return idx == 1 ? true : check_for ()->can_error (); | |
| 1262 } | |
| 1263 }; | |
| 1264 | |
|
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1265 // for now only handles the 1D case |
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1266 class |
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1267 jit_magic_end : public jit_instruction |
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1268 { |
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1269 public: |
| 15067 | 1270 class |
| 1271 context | |
| 1272 { | |
| 1273 public: | |
| 1274 context (void) : value (0), index (0), count (0) | |
| 1275 {} | |
| 1276 | |
|
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1277 context (jit_factory& factory, jit_value *avalue, size_t aindex, |
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1278 size_t acount); |
| 15067 | 1279 |
| 1280 jit_value *value; | |
|
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1281 jit_const_index *index; |
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1282 jit_const_index *count; |
| 15067 | 1283 }; |
| 1284 | |
| 1285 jit_magic_end (const std::vector<context>& full_context); | |
|
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1286 |
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1287 virtual bool infer (void); |
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1288 |
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1289 const jit_function& overload () const; |
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1290 |
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1291 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const; |
|
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1292 |
|
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1293 context resolve_context (void) const; |
|
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1294 |
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1295 virtual std::ostream& short_print (std::ostream& os) const |
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1296 { |
|
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1297 return os << "magic_end" << "#" << id (); |
|
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1298 } |
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1299 |
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1300 JIT_VALUE_ACCEPT; |
|
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1301 private: |
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1302 std::vector<context> contexts; |
|
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1303 }; |
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1304 |
| 15016 | 1305 class |
| 1306 jit_extract_argument : public jit_assign_base | |
| 1307 { | |
| 1308 public: | |
| 1309 jit_extract_argument (jit_type *atype, jit_variable *adest) | |
| 1310 : jit_assign_base (adest) | |
| 1311 { | |
| 1312 stash_type (atype); | |
| 1313 } | |
| 1314 | |
| 1315 const std::string& name (void) const | |
| 1316 { | |
| 1317 return dest ()->name (); | |
| 1318 } | |
| 1319 | |
| 1320 const jit_function& overload (void) const | |
| 1321 { | |
| 1322 return jit_typeinfo::cast (type (), jit_typeinfo::get_any ()); | |
| 1323 } | |
| 1324 | |
| 1325 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1326 { | |
| 1327 print_indent (os, indent); | |
| 1328 | |
| 1329 return short_print (os) << " = extract " << name (); | |
| 1330 } | |
| 1331 | |
| 1332 JIT_VALUE_ACCEPT; | |
| 1333 }; | |
| 1334 | |
| 1335 class | |
| 1336 jit_store_argument : public jit_instruction | |
| 1337 { | |
| 1338 public: | |
| 1339 jit_store_argument (jit_variable *var) | |
| 1340 : jit_instruction (var), dest (var) | |
| 1341 {} | |
| 1342 | |
| 1343 const std::string& name (void) const | |
| 1344 { | |
| 1345 return dest->name (); | |
| 1346 } | |
| 1347 | |
| 1348 const jit_function& overload (void) const | |
| 1349 { | |
| 1350 return jit_typeinfo::cast (jit_typeinfo::get_any (), result_type ()); | |
| 1351 } | |
| 1352 | |
| 1353 jit_value *result (void) const | |
| 1354 { | |
| 1355 return argument (0); | |
| 1356 } | |
| 1357 | |
| 1358 jit_type *result_type (void) const | |
| 1359 { | |
| 1360 return result ()->type (); | |
| 1361 } | |
| 1362 | |
| 1363 llvm::Value *result_llvm (void) const | |
| 1364 { | |
| 1365 return result ()->to_llvm (); | |
| 1366 } | |
| 1367 | |
| 1368 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const | |
| 1369 { | |
| 1370 jit_value *res = result (); | |
| 1371 print_indent (os, indent) << "store "; | |
| 1372 dest->short_print (os); | |
| 1373 | |
| 1374 if (! isa<jit_variable> (res)) | |
| 1375 { | |
| 1376 os << " = "; | |
| 1377 res->short_print (os); | |
| 1378 } | |
| 1379 | |
| 1380 return os; | |
| 1381 } | |
| 1382 | |
| 1383 JIT_VALUE_ACCEPT; | |
| 1384 private: | |
| 1385 jit_variable *dest; | |
| 1386 }; | |
| 1387 | |
| 1388 class | |
|
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1389 jit_return : public jit_instruction |
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1390 { |
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1391 public: |
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1392 jit_return (void) {} |
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1393 |
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1394 jit_return (jit_value *retval) : jit_instruction (retval) {} |
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1395 |
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1396 jit_value *result (void) const |
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1397 { |
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1398 return argument_count () ? argument (0) : 0; |
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1399 } |
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1400 |
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1401 jit_type *result_type (void) const |
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1402 { |
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1403 jit_value *res = result (); |
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1404 return res ? res->type () : 0; |
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1405 } |
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1406 |
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1407 virtual std::ostream& print (std::ostream& os, size_t indent = 0) const |
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1408 { |
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1409 print_indent (os, indent) << "return"; |
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1410 |
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1411 if (result ()) |
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1412 os << " " << *result (); |
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1413 |
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1414 return os; |
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1415 } |
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1416 |
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1417 JIT_VALUE_ACCEPT; |
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1418 }; |
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1419 |
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1420 class |
| 15016 | 1421 jit_ir_walker |
| 1422 { | |
| 1423 public: | |
| 1424 virtual ~jit_ir_walker () {} | |
| 1425 | |
| 1426 #define JIT_METH(clname) \ | |
| 1427 virtual void visit (jit_ ## clname&) = 0; | |
| 1428 | |
| 1429 JIT_VISIT_IR_CLASSES; | |
| 1430 | |
| 1431 #undef JIT_METH | |
| 1432 }; | |
| 1433 | |
| 1434 template <typename T, jit_type *(*EXTRACT_T)(void), typename PASS_T, bool QUOTE> | |
| 1435 void | |
| 1436 jit_const<T, EXTRACT_T, PASS_T, QUOTE>::accept (jit_ir_walker& walker) | |
| 1437 { | |
| 1438 walker.visit (*this); | |
| 1439 } | |
| 1440 | |
| 1441 #undef JIT_VALUE_ACCEPT | |
| 1442 | |
| 1443 #endif | |
| 1444 #endif |