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100644 426 lines (382 sloc) 13.659 kb
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Laurent Sansonetti authored
1 /*
2 * MacRuby compiler.
3 *
4 * This file is covered by the Ruby license. See COPYING for more details.
5 *
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6 * Copyright (C) 2008-2010, Apple Inc. All rights reserved.
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7 */
8
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9 #ifndef __COMPILER_H_
10 #define __COMPILER_H_
11
12 #if defined(__cplusplus)
13
14 // For the dispatcher.
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15 #define DISPATCH_VCALL 1 // no receiver, no argument
16 #define DISPATCH_FCALL 2 // no receiver, one or more arguments
17 #define DISPATCH_SUPER 3 // super call
18 #define DISPATCH_SELF_ATTRASGN 4 // self attribute assignment
19 #define SPLAT_ARG_FOLLOWS 0xdeadbeef
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20
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21 // For const lookup.
22 #define CONST_LOOKUP_LEXICAL 1
23 #define CONST_LOOKUP_DYNAMIC_CLASS 2
24
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25 // For defined?
26 #define DEFINED_IVAR 1
27 #define DEFINED_GVAR 2
28 #define DEFINED_CVAR 3
29 #define DEFINED_CONST 4
30 #define DEFINED_LCONST 5
31 #define DEFINED_SUPER 6
32 #define DEFINED_METHOD 7
33
34 class RoxorCompiler {
35 public:
36 static llvm::Module *module;
37 static RoxorCompiler *shared;
38
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39 RoxorCompiler(bool debug_mode);
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40 virtual ~RoxorCompiler(void) { }
41
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42 void set_fname(const char *_fname);
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43
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44 Value *compile_node(NODE *node);
45
46 virtual Function *compile_main_function(NODE *node);
47 Function *compile_read_attr(ID name);
48 Function *compile_write_attr(ID name);
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49 Function *compile_stub(const char *types, bool variadic, int min_argc,
50 bool is_objc);
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51 Function *compile_bs_struct_new(rb_vm_bs_boxed_t *bs_boxed);
52 Function *compile_bs_struct_writer(rb_vm_bs_boxed_t *bs_boxed,
53 int field);
54 Function *compile_ffi_function(void *stub, void *imp, int argc);
55 Function *compile_to_rval_convertor(const char *type);
56 Function *compile_to_ocval_convertor(const char *type);
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57 Function *compile_objc_stub(Function *ruby_func, IMP ruby_imp,
58 const rb_vm_arity_t &arity, const char *types);
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59 Function *compile_block_caller(rb_vm_block_t *block);
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60 Function *compile_mri_stub(void *imp, const int arity);
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61
62 const Type *convert_type(const char *type);
63
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64 bool is_inside_eval(void) { return inside_eval; }
65 void set_inside_eval(bool flag) { inside_eval = flag; }
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66 bool is_dynamic_class(void) { return dynamic_class; }
67 void set_dynamic_class(bool flag) { dynamic_class = flag; }
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68
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69 protected:
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70 DIFactory *debug_info;
71 DICompileUnit debug_compile_unit;
72 DISubprogram debug_subprogram;
73
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74 bool debug_mode;
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75 const char *fname;
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76 bool inside_eval;
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77
78 std::map<ID, Value *> lvars;
79 std::vector<ID> dvars;
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80 std::map<ID, Value *> ivar_slots_cache;
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81 std::map<std::string, GlobalVariable *> static_strings;
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82 std::map<CFHashCode, GlobalVariable *> static_ustrings;
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83
84 #if ROXOR_COMPILER_DEBUG
85 int level;
86 # define DEBUG_LEVEL_INC() (level++)
87 # define DEBUG_LEVEL_DEC() (level--)
88 #else
89 # define DEBUG_LEVEL_INC()
90 # define DEBUG_LEVEL_DEC()
91 #endif
92
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93 unsigned int current_line;
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94 BasicBlock *bb;
95 BasicBlock *entry_bb;
96 ID current_mid;
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97 rb_vm_arity_t current_arity;
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98 bool current_instance_method;
99 ID self_id;
100 Value *current_self;
101 bool current_block;
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102 bool current_block_chain;
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103 Value *current_var_uses;
104 Value *running_block;
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105 Value *current_block_arg;
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106 BasicBlock *begin_bb;
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107 // block used in an invoke when an exception occurs
108 BasicBlock *rescue_invoke_bb;
109 // block to return to in a rescue if an exception is not handled
110 BasicBlock *rescue_rethrow_bb;
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111 BasicBlock *ensure_bb;
112 bool current_rescue;
113 NODE *current_block_node;
114 Function *current_block_func;
115 GlobalVariable *current_opened_class;
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116 bool dynamic_class;
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117 bool current_module;
118 BasicBlock *current_loop_begin_bb;
119 BasicBlock *current_loop_body_bb;
120 BasicBlock *current_loop_end_bb;
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121 PHINode *current_loop_exit_val;
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122 int return_from_block;
123 int return_from_block_ids;
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124 PHINode *ensure_pn;
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125 bool block_declaration;
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126
127 Function *dispatcherFunc;
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128 Function *fastPlusFunc;
129 Function *fastMinusFunc;
130 Function *fastMultFunc;
131 Function *fastDivFunc;
132 Function *fastLtFunc;
133 Function *fastLeFunc;
134 Function *fastGtFunc;
135 Function *fastGeFunc;
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136 Function *fastEqFunc;
137 Function *fastNeqFunc;
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138 Function *fastEqqFunc;
139 Function *whenSplatFunc;
140 Function *prepareBlockFunc;
141 Function *pushBindingFunc;
142 Function *getBlockFunc;
143 Function *currentBlockObjectFunc;
144 Function *getConstFunc;
145 Function *setConstFunc;
146 Function *prepareMethodFunc;
147 Function *singletonClassFunc;
148 Function *defineClassFunc;
149 Function *prepareIvarSlotFunc;
150 Function *getIvarFunc;
151 Function *setIvarFunc;
152 Function *definedFunc;
153 Function *undefFunc;
154 Function *aliasFunc;
155 Function *valiasFunc;
156 Function *newHashFunc;
157 Function *toAFunc;
158 Function *toAryFunc;
159 Function *catArrayFunc;
160 Function *dupArrayFunc;
161 Function *newArrayFunc;
162 Function *newStructFunc;
163 Function *newOpaqueFunc;
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164 Function *newPointerFunc;
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165 Function *getStructFieldsFunc;
166 Function *getOpaqueDataFunc;
167 Function *getPointerPtrFunc;
168 Function *checkArityFunc;
169 Function *setStructFunc;
170 Function *newRangeFunc;
171 Function *newRegexpFunc;
172 Function *strInternFunc;
173 Function *keepVarsFunc;
174 Function *masgnGetElemBeforeSplatFunc;
175 Function *masgnGetElemAfterSplatFunc;
176 Function *masgnGetSplatFunc;
177 Function *newStringFunc;
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178 Function *newString2Func;
179 Function *newString3Func;
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180 Function *yieldFunc;
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181 Function *getBrokenFunc;
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182 Function *blockEvalFunc;
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183 Function *gvarSetFunc;
184 Function *gvarGetFunc;
185 Function *cvarSetFunc;
186 Function *cvarGetFunc;
187 Function *currentExceptionFunc;
188 Function *popExceptionFunc;
189 Function *getSpecialFunc;
190 Function *breakFunc;
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191 Function *returnFromBlockFunc;
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192 Function *returnedFromBlockFunc;
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193 Function *checkReturnFromBlockFunc;
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194 Function *setHasEnsureFunc;
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195 Function *longjmpFunc;
196 Function *setjmpFunc;
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197 Function *setScopeFunc;
198 Function *setCurrentClassFunc;
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199 Function *getCacheFunc;
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200 Function *debugTrapFunc;
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201 Function *getFFStateFunc;
202 Function *setFFStateFunc;
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203 Function *takeOwnershipFunc;
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204
205 Constant *zeroVal;
206 Constant *oneVal;
207 Constant *twoVal;
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208 Constant *threeVal;
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209 Constant *nilVal;
210 Constant *trueVal;
211 Constant *falseVal;
212 Constant *undefVal;
213 Constant *splatArgFollowsVal;
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214 Constant *defaultScope;
215 Constant *publicScope;
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216
217 const Type *VoidTy;
218 const Type *Int1Ty;
219 const Type *Int8Ty;
220 const Type *Int16Ty;
221 const Type *Int32Ty;
222 const Type *Int64Ty;
223 const Type *FloatTy;
224 const Type *DoubleTy;
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225 const Type *RubyObjTy;
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226 const PointerType *RubyObjPtrTy;
227 const PointerType *RubyObjPtrPtrTy;
228 const PointerType *PtrTy;
229 const PointerType *PtrPtrTy;
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230 const Type *IntTy;
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231 const PointerType *Int32PtrTy;
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232
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233 unsigned dbg_mdkind;
234
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235 void compile_node_error(const char *msg, NODE *node);
236
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237 virtual Constant *
238 compile_const_pointer(void *ptr, const PointerType *type=NULL) {
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239 if (type == NULL) {
240 type = PtrTy;
241 }
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242 if (ptr == NULL) {
243 return ConstantPointerNull::get(type);
244 }
245 else {
246 Constant *ptrint = ConstantInt::get(IntTy, (long)ptr);
247 return ConstantExpr::getIntToPtr(ptrint, type);
248 }
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249 }
250
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251 Constant *
252 compile_const_pointer_to_pointer(void *ptr) {
253 return compile_const_pointer(ptr, PtrPtrTy);
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254 }
255
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256 Instruction *compile_protected_call(Value *imp,
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257 std::vector<Value *> &params);
258 void compile_dispatch_arguments(NODE *args,
259 std::vector<Value *> &arguments, int *pargc);
260 Function::ArgumentListType::iterator compile_optional_arguments(
261 Function::ArgumentListType::iterator iter, NODE *node);
262 void compile_boolean_test(Value *condVal, BasicBlock *ifTrueBB,
263 BasicBlock *ifFalseBB);
264 void compile_when_arguments(NODE *args, Value *comparedToVal,
265 BasicBlock *thenBB);
266 void compile_single_when_argument(NODE *arg, Value *comparedToVal,
267 BasicBlock *thenBB);
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268 virtual void compile_prepare_method(Value *classVal, Value *sel,
269 bool singleton, Function *new_function, rb_vm_arity_t &arity,
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270 NODE *body);
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271 Value *compile_dispatch_call(std::vector<Value *> &params);
272 Value *compile_when_splat(Value *comparedToVal, Value *splatVal);
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273 Value *compile_fast_op_call(SEL sel, Value *selfVal, Value *comparedToVal);
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274 Value *compile_attribute_assign(NODE *node, Value *extra_val);
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275 virtual Value *compile_prepare_block_args(Function *func, int *flags);
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276 Value *compile_block_create(void);
277 Value *compile_block_get(Value *block_object);
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278 Value *compile_binding(void);
279 Value *compile_optimized_dispatch_call(SEL sel, int argc,
280 std::vector<Value *> &params);
281 Value *compile_ivar_read(ID vid);
282 Value *compile_ivar_assignment(ID vid, Value *val);
283 Value *compile_cvar_assignment(ID vid, Value *val);
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284 Value *compile_cvar_get(ID vid, bool check);
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285 Value *compile_gvar_assignment(NODE *node, Value *val);
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286 Value *compile_constant_declaration(NODE *node, Value *val);
287 Value *compile_multiple_assignment(NODE *node, Value *val);
288 void compile_multiple_assignment_element(NODE *node, Value *val);
289 Value *compile_current_class(void);
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290 virtual Value *compile_nsobject(void);
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291 virtual Value *compile_standarderror(void);
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292 Value *compile_class_path(NODE *node, int *flags);
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293 Value *compile_const(ID id, Value *outer);
294 Value *compile_singleton_class(Value *obj);
295 Value *compile_defined_expression(NODE *node);
296 Value *compile_dstr(NODE *node);
297 Value *compile_dvar_slot(ID name);
298 void compile_break_val(Value *val);
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299 void compile_simple_return(Value *val);
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300 Value *compile_set_has_ensure(Value *val);
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301 void compile_return_from_block(Value *val, int id);
302 void compile_return_from_block_handler(int id);
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303 Value *compile_jump(NODE *node);
304 virtual Value *compile_mcache(SEL sel, bool super);
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305 Value *compile_get_mcache(Value *sel, bool super);
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306 virtual Value *compile_ccache(ID id);
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307 virtual Value *compile_sel(SEL sel, bool add_to_bb=true) {
308 return compile_const_pointer(sel, PtrTy);
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309 }
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310 virtual Value *compile_id(ID id);
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311 GlobalVariable *compile_const_global_string(const char *str,
312 const size_t str_len);
313 GlobalVariable *compile_const_global_string(const char *str) {
314 return compile_const_global_string(str, strlen(str));
315 }
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316 GlobalVariable *compile_const_global_ustring(const UniChar *str,
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317 const size_t str_len);
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318
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319 Value *compile_arity(rb_vm_arity_t &arity);
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320 Instruction *compile_range(Value *beg, Value *end, bool exclude_end,
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321 bool retain=false, bool add_to_bb=true);
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322 Value *compile_literal(VALUE val);
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323 virtual Value *compile_immutable_literal(VALUE val);
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324 virtual Value *compile_global_entry(NODE *node);
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325
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326 void compile_set_current_scope(Value *klass, Value *scope);
327 Value *compile_set_current_class(Value *klass);
328
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329 Value *compile_landing_pad_header(void);
330 Value *compile_landing_pad_header(const std::type_info &eh_type);
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331 void compile_landing_pad_footer(bool pop_exception=true);
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332 Value *compile_current_exception(void);
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333 void compile_rethrow_exception(void);
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334 void compile_pop_exception(int pos=0);
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335 Value *compile_lvar_slot(ID name);
336 bool compile_lvars(ID *tbl);
337 Value *compile_new_struct(Value *klass, std::vector<Value *> &fields);
338 Value *compile_new_opaque(Value *klass, Value *val);
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339 Value *compile_new_pointer(const char *type, Value *val);
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340 void compile_get_struct_fields(Value *val, Value *buf,
341 rb_vm_bs_boxed_t *bs_boxed);
342 Value *compile_get_opaque_data(Value *val, rb_vm_bs_boxed_t *bs_boxed,
343 Value *slot);
344 Value *compile_get_cptr(Value *val, const char *type, Value *slot);
345 void compile_check_arity(Value *given, Value *requested);
346 void compile_set_struct(Value *rcv, int field, Value *val);
347
348 Value *compile_conversion_to_c(const char *type, Value *val,
349 Value *slot);
350 Value *compile_conversion_to_ruby(const char *type,
351 const Type *llvm_type, Value *val);
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352 void compile_debug_trap(void);
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353
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354 Value *compile_slot_cache(ID id);
355 virtual Value *gen_slot_cache(ID id);
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356 ICmpInst *is_value_a_fixnum(Value *val);
357 void compile_ivar_slots(Value *klass, BasicBlock::InstListType &list,
358 BasicBlock::InstListType::iterator iter);
359 bool unbox_ruby_constant(Value *val, VALUE *rval);
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360 Value *optimized_immediate_op(SEL sel, Value *leftVal, Value *rightVal,
361 bool float_op, bool *is_predicate);
362 Value *compile_double_coercion(Value *val, Value *mask,
363 BasicBlock *fallback_bb, Function *f);
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364 void compile_keep_vars(BasicBlock *startBB, BasicBlock *mergeBB);
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365
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366 SEL mid_to_sel(ID mid, int arity);
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367
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368 Value *compile_get_ffstate(GlobalVariable *ffstate);
369 Value *compile_set_ffstate(Value *val, Value *expected, GlobalVariable *ffstate, BasicBlock *mergeBB, Function *f);
370 Value *compile_ff2(NODE *current_node);
371 Value *compile_ff3(NODE *current_node);
372
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373 void attach_current_line_metadata(Instruction *insn);
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374 };
375
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376 #define context (RoxorCompiler::module->getContext())
377
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378 class RoxorAOTCompiler : public RoxorCompiler {
379 public:
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380 RoxorAOTCompiler(void);
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381
382 Function *compile_main_function(NODE *node);
383
384 private:
385 std::map<SEL, GlobalVariable *> mcaches;
386 std::map<ID, GlobalVariable *> ccaches;
387 std::map<SEL, GlobalVariable *> sels;
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388 std::map<ID, GlobalVariable *> ids;
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389 std::map<ID, GlobalVariable *> global_entries;
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390 std::vector<GlobalVariable *> ivar_slots;
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391 std::map<VALUE, GlobalVariable *> literals;
392
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393 GlobalVariable *cObject_gvar;
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394 GlobalVariable *cStandardError_gvar;
395 std::vector<GlobalVariable *> class_gvars;
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396
397 Value *compile_mcache(SEL sel, bool super);
398 Value *compile_ccache(ID id);
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399 Value *compile_sel(SEL sel, bool add_to_bb=true);
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400 void compile_prepare_method(Value *classVal, Value *sel,
401 bool singleton, Function *new_function, rb_vm_arity_t &arity,
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402 NODE *body);
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403 Value *compile_prepare_block_args(Function *func, int *flags);
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404 Value *compile_nsobject(void);
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405 Value *compile_standarderror(void);
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406 Value *compile_id(ID id);
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407 Value *compile_immutable_literal(VALUE val);
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408 Value *compile_global_entry(NODE *node);
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409
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410 Value *gen_slot_cache(ID id);
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411
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412 Constant *
413 compile_const_pointer(void *ptr, const PointerType *type=NULL) {
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414 if (ptr == NULL) {
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415 return RoxorCompiler::compile_const_pointer(ptr, type);
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416 }
417 printf("compile_const_pointer() called with a non-NULL pointer " \
418 "on the AOT compiler - leaving the ship!\n");
419 abort();
420 }
421 };
422
423 #endif /* __cplusplus */
424
425 #endif /* __COMPILER_H_ */
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