Mercurial > hg > truffle
annotate src/share/vm/ci/ciTypeFlow.hpp @ 14518:d8041d695d19
Merged with jdk9/dev/hotspot changeset 3812c088b945
| author | twisti |
|---|---|
| date | Tue, 11 Mar 2014 18:45:59 -0700 |
| parents | b9a9ed0f8eeb |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
6842
b9a9ed0f8eeb
7197424: update copyright year to match last edit in jdk8 hotspot repository
mikael
parents:
4777
diff
changeset
|
2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
380
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
380
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
380
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CI_CITYPEFLOW_HPP |
| 26 #define SHARE_VM_CI_CITYPEFLOW_HPP | |
| 27 | |
| 28 #ifdef COMPILER2 | |
| 29 #include "ci/ciEnv.hpp" | |
| 30 #include "ci/ciKlass.hpp" | |
| 31 #include "ci/ciMethodBlocks.hpp" | |
| 32 #endif | |
| 33 #ifdef SHARK | |
| 34 #include "ci/ciEnv.hpp" | |
| 35 #include "ci/ciKlass.hpp" | |
| 36 #include "ci/ciMethodBlocks.hpp" | |
| 2447 | 37 #include "shark/shark_globals.hpp" |
| 1972 | 38 #endif |
| 39 | |
| 0 | 40 |
| 41 class ciTypeFlow : public ResourceObj { | |
| 42 private: | |
| 43 ciEnv* _env; | |
| 44 ciMethod* _method; | |
| 45 ciMethodBlocks* _methodBlocks; | |
| 46 int _osr_bci; | |
| 47 | |
| 48 // information cached from the method: | |
| 49 int _max_locals; | |
| 50 int _max_stack; | |
| 51 int _code_size; | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
52 bool _has_irreducible_entry; |
| 0 | 53 |
| 54 const char* _failure_reason; | |
| 55 | |
| 56 public: | |
| 57 class StateVector; | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
58 class Loop; |
| 0 | 59 class Block; |
| 60 | |
| 61 // Build a type flow analyzer | |
| 62 // Do an OSR analysis if osr_bci >= 0. | |
| 63 ciTypeFlow(ciEnv* env, ciMethod* method, int osr_bci = InvocationEntryBci); | |
| 64 | |
| 65 // Accessors | |
| 66 ciMethod* method() const { return _method; } | |
| 67 ciEnv* env() { return _env; } | |
| 68 Arena* arena() { return _env->arena(); } | |
| 69 bool is_osr_flow() const{ return _osr_bci != InvocationEntryBci; } | |
| 70 int start_bci() const { return is_osr_flow()? _osr_bci: 0; } | |
| 71 int max_locals() const { return _max_locals; } | |
| 72 int max_stack() const { return _max_stack; } | |
| 73 int max_cells() const { return _max_locals + _max_stack; } | |
| 74 int code_size() const { return _code_size; } | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
75 bool has_irreducible_entry() const { return _has_irreducible_entry; } |
| 0 | 76 |
| 77 // Represents information about an "active" jsr call. This | |
| 78 // class represents a call to the routine at some entry address | |
| 79 // with some distinct return address. | |
| 80 class JsrRecord : public ResourceObj { | |
| 81 private: | |
| 82 int _entry_address; | |
| 83 int _return_address; | |
| 84 public: | |
| 85 JsrRecord(int entry_address, int return_address) { | |
| 86 _entry_address = entry_address; | |
| 87 _return_address = return_address; | |
| 88 } | |
| 89 | |
| 90 int entry_address() const { return _entry_address; } | |
| 91 int return_address() const { return _return_address; } | |
| 92 | |
| 93 void print_on(outputStream* st) const { | |
| 94 #ifndef PRODUCT | |
| 95 st->print("%d->%d", entry_address(), return_address()); | |
| 96 #endif | |
| 97 } | |
| 98 }; | |
| 99 | |
| 100 // A JsrSet represents some set of JsrRecords. This class | |
| 101 // is used to record a set of all jsr routines which we permit | |
| 102 // execution to return (ret) from. | |
| 103 // | |
| 104 // During abstract interpretation, JsrSets are used to determine | |
| 105 // whether two paths which reach a given block are unique, and | |
| 106 // should be cloned apart, or are compatible, and should merge | |
| 107 // together. | |
| 108 // | |
| 109 // Note that different amounts of effort can be expended determining | |
| 110 // if paths are compatible. <DISCUSSION> | |
| 111 class JsrSet : public ResourceObj { | |
| 112 private: | |
| 113 GrowableArray<JsrRecord*>* _set; | |
| 114 | |
| 115 JsrRecord* record_at(int i) { | |
| 116 return _set->at(i); | |
| 117 } | |
| 118 | |
| 119 // Insert the given JsrRecord into the JsrSet, maintaining the order | |
| 120 // of the set and replacing any element with the same entry address. | |
| 121 void insert_jsr_record(JsrRecord* record); | |
| 122 | |
| 123 // Remove the JsrRecord with the given return address from the JsrSet. | |
| 124 void remove_jsr_record(int return_address); | |
| 125 | |
| 126 public: | |
| 127 JsrSet(Arena* arena, int default_len = 4); | |
| 128 | |
| 129 // Copy this JsrSet. | |
| 130 void copy_into(JsrSet* jsrs); | |
| 131 | |
| 132 // Is this JsrSet compatible with some other JsrSet? | |
| 133 bool is_compatible_with(JsrSet* other); | |
| 134 | |
| 135 // Apply the effect of a single bytecode to the JsrSet. | |
| 136 void apply_control(ciTypeFlow* analyzer, | |
| 137 ciBytecodeStream* str, | |
| 138 StateVector* state); | |
| 139 | |
| 140 // What is the cardinality of this set? | |
| 141 int size() const { return _set->length(); } | |
| 142 | |
| 143 void print_on(outputStream* st) const PRODUCT_RETURN; | |
| 144 }; | |
| 145 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
146 class LocalSet VALUE_OBJ_CLASS_SPEC { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
147 private: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
148 enum Constants { max = 63 }; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
149 uint64_t _bits; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
150 public: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
151 LocalSet() : _bits(0) {} |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
152 void add(uint32_t i) { if (i < (uint32_t)max) _bits |= (1LL << i); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
153 void add(LocalSet* ls) { _bits |= ls->_bits; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
154 bool test(uint32_t i) const { return i < (uint32_t)max ? (_bits>>i)&1U : true; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
155 void clear() { _bits = 0; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
156 void print_on(outputStream* st, int limit) const PRODUCT_RETURN; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
157 }; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
158 |
| 0 | 159 // Used as a combined index for locals and temps |
| 160 enum Cell { | |
| 303 | 161 Cell_0, Cell_max = INT_MAX |
| 0 | 162 }; |
| 163 | |
| 164 // A StateVector summarizes the type information at some | |
| 165 // point in the program | |
| 166 class StateVector : public ResourceObj { | |
| 167 private: | |
| 168 ciType** _types; | |
| 169 int _stack_size; | |
| 170 int _monitor_count; | |
| 171 ciTypeFlow* _outer; | |
| 172 | |
| 173 int _trap_bci; | |
| 174 int _trap_index; | |
| 175 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
176 LocalSet _def_locals; // For entire block |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
177 |
| 0 | 178 static ciType* type_meet_internal(ciType* t1, ciType* t2, ciTypeFlow* analyzer); |
| 179 | |
| 180 public: | |
| 181 // Special elements in our type lattice. | |
| 182 enum { | |
| 183 T_TOP = T_VOID, // why not? | |
| 184 T_BOTTOM = T_CONFLICT, | |
| 185 T_LONG2 = T_SHORT, // 2nd word of T_LONG | |
| 186 T_DOUBLE2 = T_CHAR, // 2nd word of T_DOUBLE | |
| 187 T_NULL = T_BYTE // for now. | |
| 188 }; | |
| 189 static ciType* top_type() { return ciType::make((BasicType)T_TOP); } | |
| 190 static ciType* bottom_type() { return ciType::make((BasicType)T_BOTTOM); } | |
| 191 static ciType* long2_type() { return ciType::make((BasicType)T_LONG2); } | |
| 192 static ciType* double2_type(){ return ciType::make((BasicType)T_DOUBLE2); } | |
| 193 static ciType* null_type() { return ciType::make((BasicType)T_NULL); } | |
| 194 | |
| 195 static ciType* half_type(ciType* t) { | |
| 196 switch (t->basic_type()) { | |
| 197 case T_LONG: return long2_type(); | |
| 198 case T_DOUBLE: return double2_type(); | |
| 199 default: ShouldNotReachHere(); return NULL; | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 // The meet operation for our type lattice. | |
| 204 ciType* type_meet(ciType* t1, ciType* t2) { | |
| 205 return type_meet_internal(t1, t2, outer()); | |
| 206 } | |
| 207 | |
| 208 // Accessors | |
| 209 ciTypeFlow* outer() const { return _outer; } | |
| 210 | |
| 211 int stack_size() const { return _stack_size; } | |
| 212 void set_stack_size(int ss) { _stack_size = ss; } | |
| 213 | |
| 214 int monitor_count() const { return _monitor_count; } | |
| 215 void set_monitor_count(int mc) { _monitor_count = mc; } | |
| 216 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
217 LocalSet* def_locals() { return &_def_locals; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
218 const LocalSet* def_locals() const { return &_def_locals; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
219 |
| 0 | 220 static Cell start_cell() { return (Cell)0; } |
| 221 static Cell next_cell(Cell c) { return (Cell)(((int)c) + 1); } | |
| 222 Cell limit_cell() const { | |
| 223 return (Cell)(outer()->max_locals() + stack_size()); | |
| 224 } | |
| 225 | |
| 226 // Cell creation | |
| 227 Cell local(int lnum) const { | |
| 228 assert(lnum < outer()->max_locals(), "index check"); | |
| 229 return (Cell)(lnum); | |
| 230 } | |
| 231 | |
| 232 Cell stack(int snum) const { | |
| 233 assert(snum < stack_size(), "index check"); | |
| 234 return (Cell)(outer()->max_locals() + snum); | |
| 235 } | |
| 236 | |
| 237 Cell tos() const { return stack(stack_size()-1); } | |
| 238 | |
| 239 // For external use only: | |
| 240 ciType* local_type_at(int i) const { return type_at(local(i)); } | |
| 241 ciType* stack_type_at(int i) const { return type_at(stack(i)); } | |
| 242 | |
| 243 // Accessors for the type of some Cell c | |
| 244 ciType* type_at(Cell c) const { | |
| 245 assert(start_cell() <= c && c < limit_cell(), "out of bounds"); | |
| 246 return _types[c]; | |
| 247 } | |
| 248 | |
| 249 void set_type_at(Cell c, ciType* type) { | |
| 250 assert(start_cell() <= c && c < limit_cell(), "out of bounds"); | |
| 251 _types[c] = type; | |
| 252 } | |
| 253 | |
| 254 // Top-of-stack operations. | |
| 255 void set_type_at_tos(ciType* type) { set_type_at(tos(), type); } | |
| 256 ciType* type_at_tos() const { return type_at(tos()); } | |
| 257 | |
| 258 void push(ciType* type) { | |
| 259 _stack_size++; | |
| 260 set_type_at_tos(type); | |
| 261 } | |
| 262 void pop() { | |
| 263 debug_only(set_type_at_tos(bottom_type())); | |
| 264 _stack_size--; | |
| 265 } | |
| 266 ciType* pop_value() { | |
| 267 ciType* t = type_at_tos(); | |
| 268 pop(); | |
| 269 return t; | |
| 270 } | |
| 271 | |
| 272 // Convenience operations. | |
| 273 bool is_reference(ciType* type) const { | |
| 274 return type == null_type() || !type->is_primitive_type(); | |
| 275 } | |
| 276 bool is_int(ciType* type) const { | |
| 277 return type->basic_type() == T_INT; | |
| 278 } | |
| 279 bool is_long(ciType* type) const { | |
| 280 return type->basic_type() == T_LONG; | |
| 281 } | |
| 282 bool is_float(ciType* type) const { | |
| 283 return type->basic_type() == T_FLOAT; | |
| 284 } | |
| 285 bool is_double(ciType* type) const { | |
| 286 return type->basic_type() == T_DOUBLE; | |
| 287 } | |
| 288 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
289 void store_to_local(int lnum) { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
290 _def_locals.add((uint) lnum); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
291 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
292 |
| 0 | 293 void push_translate(ciType* type); |
| 294 | |
| 295 void push_int() { | |
| 296 push(ciType::make(T_INT)); | |
| 297 } | |
| 298 void pop_int() { | |
| 299 assert(is_int(type_at_tos()), "must be integer"); | |
| 300 pop(); | |
| 301 } | |
| 302 void check_int(Cell c) { | |
| 303 assert(is_int(type_at(c)), "must be integer"); | |
| 304 } | |
| 305 void push_double() { | |
| 306 push(ciType::make(T_DOUBLE)); | |
| 307 push(double2_type()); | |
| 308 } | |
| 309 void pop_double() { | |
| 310 assert(type_at_tos() == double2_type(), "must be 2nd half"); | |
| 311 pop(); | |
| 312 assert(is_double(type_at_tos()), "must be double"); | |
| 313 pop(); | |
| 314 } | |
| 315 void push_float() { | |
| 316 push(ciType::make(T_FLOAT)); | |
| 317 } | |
| 318 void pop_float() { | |
| 319 assert(is_float(type_at_tos()), "must be float"); | |
| 320 pop(); | |
| 321 } | |
| 322 void push_long() { | |
| 323 push(ciType::make(T_LONG)); | |
| 324 push(long2_type()); | |
| 325 } | |
| 326 void pop_long() { | |
| 327 assert(type_at_tos() == long2_type(), "must be 2nd half"); | |
| 328 pop(); | |
| 329 assert(is_long(type_at_tos()), "must be long"); | |
| 330 pop(); | |
| 331 } | |
| 332 void push_object(ciKlass* klass) { | |
| 333 push(klass); | |
| 334 } | |
| 335 void pop_object() { | |
| 336 assert(is_reference(type_at_tos()), "must be reference type"); | |
| 337 pop(); | |
| 338 } | |
| 339 void pop_array() { | |
| 340 assert(type_at_tos() == null_type() || | |
| 341 type_at_tos()->is_array_klass(), "must be array type"); | |
| 342 pop(); | |
| 343 } | |
| 344 // pop_objArray and pop_typeArray narrow the tos to ciObjArrayKlass | |
| 345 // or ciTypeArrayKlass (resp.). In the rare case that an explicit | |
| 346 // null is popped from the stack, we return NULL. Caller beware. | |
| 347 ciObjArrayKlass* pop_objArray() { | |
| 348 ciType* array = pop_value(); | |
| 349 if (array == null_type()) return NULL; | |
| 350 assert(array->is_obj_array_klass(), "must be object array type"); | |
| 351 return array->as_obj_array_klass(); | |
| 352 } | |
| 353 ciTypeArrayKlass* pop_typeArray() { | |
| 354 ciType* array = pop_value(); | |
| 355 if (array == null_type()) return NULL; | |
| 356 assert(array->is_type_array_klass(), "must be prim array type"); | |
| 357 return array->as_type_array_klass(); | |
| 358 } | |
| 359 void push_null() { | |
| 360 push(null_type()); | |
| 361 } | |
| 362 void do_null_assert(ciKlass* unloaded_klass); | |
| 363 | |
| 364 // Helper convenience routines. | |
| 365 void do_aaload(ciBytecodeStream* str); | |
| 366 void do_checkcast(ciBytecodeStream* str); | |
| 367 void do_getfield(ciBytecodeStream* str); | |
| 368 void do_getstatic(ciBytecodeStream* str); | |
| 369 void do_invoke(ciBytecodeStream* str, bool has_receiver); | |
| 370 void do_jsr(ciBytecodeStream* str); | |
| 371 void do_ldc(ciBytecodeStream* str); | |
| 372 void do_multianewarray(ciBytecodeStream* str); | |
| 373 void do_new(ciBytecodeStream* str); | |
| 374 void do_newarray(ciBytecodeStream* str); | |
| 375 void do_putfield(ciBytecodeStream* str); | |
| 376 void do_putstatic(ciBytecodeStream* str); | |
| 377 void do_ret(ciBytecodeStream* str); | |
| 378 | |
| 379 void overwrite_local_double_long(int index) { | |
| 380 // Invalidate the previous local if it contains first half of | |
| 381 // a double or long value since it's seconf half is being overwritten. | |
| 382 int prev_index = index - 1; | |
| 383 if (prev_index >= 0 && | |
| 384 (is_double(type_at(local(prev_index))) || | |
| 385 is_long(type_at(local(prev_index))))) { | |
| 386 set_type_at(local(prev_index), bottom_type()); | |
| 387 } | |
| 388 } | |
| 389 | |
| 390 void load_local_object(int index) { | |
| 391 ciType* type = type_at(local(index)); | |
| 392 assert(is_reference(type), "must be reference type"); | |
| 393 push(type); | |
| 394 } | |
| 395 void store_local_object(int index) { | |
| 396 ciType* type = pop_value(); | |
| 397 assert(is_reference(type) || type->is_return_address(), | |
| 398 "must be reference type or return address"); | |
| 399 overwrite_local_double_long(index); | |
| 400 set_type_at(local(index), type); | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
401 store_to_local(index); |
| 0 | 402 } |
| 403 | |
| 404 void load_local_double(int index) { | |
| 405 ciType* type = type_at(local(index)); | |
| 406 ciType* type2 = type_at(local(index+1)); | |
| 407 assert(is_double(type), "must be double type"); | |
| 408 assert(type2 == double2_type(), "must be 2nd half"); | |
| 409 push(type); | |
| 410 push(double2_type()); | |
| 411 } | |
| 412 void store_local_double(int index) { | |
| 413 ciType* type2 = pop_value(); | |
| 414 ciType* type = pop_value(); | |
| 415 assert(is_double(type), "must be double"); | |
| 416 assert(type2 == double2_type(), "must be 2nd half"); | |
| 417 overwrite_local_double_long(index); | |
| 418 set_type_at(local(index), type); | |
| 419 set_type_at(local(index+1), type2); | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
420 store_to_local(index); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
421 store_to_local(index+1); |
| 0 | 422 } |
| 423 | |
| 424 void load_local_float(int index) { | |
| 425 ciType* type = type_at(local(index)); | |
| 426 assert(is_float(type), "must be float type"); | |
| 427 push(type); | |
| 428 } | |
| 429 void store_local_float(int index) { | |
| 430 ciType* type = pop_value(); | |
| 431 assert(is_float(type), "must be float type"); | |
| 432 overwrite_local_double_long(index); | |
| 433 set_type_at(local(index), type); | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
434 store_to_local(index); |
| 0 | 435 } |
| 436 | |
| 437 void load_local_int(int index) { | |
| 438 ciType* type = type_at(local(index)); | |
| 439 assert(is_int(type), "must be int type"); | |
| 440 push(type); | |
| 441 } | |
| 442 void store_local_int(int index) { | |
| 443 ciType* type = pop_value(); | |
| 444 assert(is_int(type), "must be int type"); | |
| 445 overwrite_local_double_long(index); | |
| 446 set_type_at(local(index), type); | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
447 store_to_local(index); |
| 0 | 448 } |
| 449 | |
| 450 void load_local_long(int index) { | |
| 451 ciType* type = type_at(local(index)); | |
| 452 ciType* type2 = type_at(local(index+1)); | |
| 453 assert(is_long(type), "must be long type"); | |
| 454 assert(type2 == long2_type(), "must be 2nd half"); | |
| 455 push(type); | |
| 456 push(long2_type()); | |
| 457 } | |
| 458 void store_local_long(int index) { | |
| 459 ciType* type2 = pop_value(); | |
| 460 ciType* type = pop_value(); | |
| 461 assert(is_long(type), "must be long"); | |
| 462 assert(type2 == long2_type(), "must be 2nd half"); | |
| 463 overwrite_local_double_long(index); | |
| 464 set_type_at(local(index), type); | |
| 465 set_type_at(local(index+1), type2); | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
466 store_to_local(index); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
467 store_to_local(index+1); |
| 0 | 468 } |
| 469 | |
| 470 // Stop interpretation of this path with a trap. | |
| 471 void trap(ciBytecodeStream* str, ciKlass* klass, int index); | |
| 472 | |
| 473 public: | |
| 474 StateVector(ciTypeFlow* outer); | |
| 475 | |
| 476 // Copy our value into some other StateVector | |
| 477 void copy_into(StateVector* copy) const; | |
| 478 | |
| 479 // Meets this StateVector with another, destructively modifying this | |
| 480 // one. Returns true if any modification takes place. | |
| 481 bool meet(const StateVector* incoming); | |
| 482 | |
| 483 // Ditto, except that the incoming state is coming from an exception. | |
| 484 bool meet_exception(ciInstanceKlass* exc, const StateVector* incoming); | |
| 485 | |
| 486 // Apply the effect of one bytecode to this StateVector | |
| 487 bool apply_one_bytecode(ciBytecodeStream* stream); | |
| 488 | |
| 489 // What is the bci of the trap? | |
| 490 int trap_bci() { return _trap_bci; } | |
| 491 | |
| 492 // What is the index associated with the trap? | |
| 493 int trap_index() { return _trap_index; } | |
| 494 | |
| 495 void print_cell_on(outputStream* st, Cell c) const PRODUCT_RETURN; | |
| 496 void print_on(outputStream* st) const PRODUCT_RETURN; | |
| 497 }; | |
| 498 | |
| 499 // Parameter for "find_block" calls: | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
500 // Describes the difference between a public and backedge copy. |
| 0 | 501 enum CreateOption { |
| 502 create_public_copy, | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
503 create_backedge_copy, |
| 0 | 504 no_create |
| 505 }; | |
| 506 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
507 // Successor iterator |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
508 class SuccIter : public StackObj { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
509 private: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
510 Block* _pred; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
511 int _index; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
512 Block* _succ; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
513 public: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
514 SuccIter() : _pred(NULL), _index(-1), _succ(NULL) {} |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
515 SuccIter(Block* pred) : _pred(pred), _index(-1), _succ(NULL) { next(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
516 int index() { return _index; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
517 Block* pred() { return _pred; } // Return predecessor |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
518 bool done() { return _index < 0; } // Finished? |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
519 Block* succ() { return _succ; } // Return current successor |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
520 void next(); // Advance |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
521 void set_succ(Block* succ); // Update current successor |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
522 bool is_normal_ctrl() { return index() < _pred->successors()->length(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
523 }; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
524 |
| 0 | 525 // A basic block |
| 526 class Block : public ResourceObj { | |
| 527 private: | |
| 528 ciBlock* _ciblock; | |
| 529 GrowableArray<Block*>* _exceptions; | |
| 530 GrowableArray<ciInstanceKlass*>* _exc_klasses; | |
| 531 GrowableArray<Block*>* _successors; | |
| 532 StateVector* _state; | |
| 533 JsrSet* _jsrs; | |
| 534 | |
| 535 int _trap_bci; | |
| 536 int _trap_index; | |
| 537 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
538 // pre_order, assigned at first visit. Used as block ID and "visited" tag |
| 0 | 539 int _pre_order; |
| 540 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
541 // A post-order, used to compute the reverse post order (RPO) provided to the client |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
542 int _post_order; // used to compute rpo |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
543 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
544 // Has this block been cloned for a loop backedge? |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
545 bool _backedge_copy; |
| 0 | 546 |
| 4777 | 547 // This block is entry to irreducible loop. |
| 548 bool _irreducible_entry; | |
| 549 | |
| 550 // This block has monitor entry point. | |
| 551 bool _has_monitorenter; | |
| 552 | |
| 0 | 553 // A pointer used for our internal work list |
| 4777 | 554 bool _on_work_list; // on the work list |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
555 Block* _next; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
556 Block* _rpo_next; // Reverse post order list |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
557 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
558 // Loop info |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
559 Loop* _loop; // nearest loop |
| 0 | 560 |
| 561 ciBlock* ciblock() const { return _ciblock; } | |
| 562 StateVector* state() const { return _state; } | |
| 563 | |
| 564 // Compute the exceptional successors and types for this Block. | |
| 565 void compute_exceptions(); | |
| 566 | |
| 567 public: | |
| 568 // constructors | |
| 569 Block(ciTypeFlow* outer, ciBlock* ciblk, JsrSet* jsrs); | |
| 570 | |
| 571 void set_trap(int trap_bci, int trap_index) { | |
| 572 _trap_bci = trap_bci; | |
| 573 _trap_index = trap_index; | |
| 574 assert(has_trap(), ""); | |
| 575 } | |
| 576 bool has_trap() const { return _trap_bci != -1; } | |
| 577 int trap_bci() const { assert(has_trap(), ""); return _trap_bci; } | |
| 578 int trap_index() const { assert(has_trap(), ""); return _trap_index; } | |
| 579 | |
| 580 // accessors | |
| 581 ciTypeFlow* outer() const { return state()->outer(); } | |
| 582 int start() const { return _ciblock->start_bci(); } | |
| 583 int limit() const { return _ciblock->limit_bci(); } | |
| 584 int control() const { return _ciblock->control_bci(); } | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
585 JsrSet* jsrs() const { return _jsrs; } |
| 0 | 586 |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
587 bool is_backedge_copy() const { return _backedge_copy; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
588 void set_backedge_copy(bool z); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
589 int backedge_copy_count() const { return outer()->backedge_copy_count(ciblock()->index(), _jsrs); } |
| 0 | 590 |
| 591 // access to entry state | |
| 592 int stack_size() const { return _state->stack_size(); } | |
| 593 int monitor_count() const { return _state->monitor_count(); } | |
| 594 ciType* local_type_at(int i) const { return _state->local_type_at(i); } | |
| 595 ciType* stack_type_at(int i) const { return _state->stack_type_at(i); } | |
| 596 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
597 // Data flow on locals |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
598 bool is_invariant_local(uint v) const { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
599 assert(is_loop_head(), "only loop heads"); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
600 // Find outermost loop with same loop head |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
601 Loop* lp = loop(); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
602 while (lp->parent() != NULL) { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
603 if (lp->parent()->head() != lp->head()) break; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
604 lp = lp->parent(); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
605 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
606 return !lp->def_locals()->test(v); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
607 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
608 LocalSet* def_locals() { return _state->def_locals(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
609 const LocalSet* def_locals() const { return _state->def_locals(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
610 |
| 0 | 611 // Get the successors for this Block. |
| 612 GrowableArray<Block*>* successors(ciBytecodeStream* str, | |
| 613 StateVector* state, | |
| 614 JsrSet* jsrs); | |
| 615 GrowableArray<Block*>* successors() { | |
| 616 assert(_successors != NULL, "must be filled in"); | |
| 617 return _successors; | |
| 618 } | |
| 619 | |
| 620 // Get the exceptional successors for this Block. | |
| 621 GrowableArray<Block*>* exceptions() { | |
| 622 if (_exceptions == NULL) { | |
| 623 compute_exceptions(); | |
| 624 } | |
| 625 return _exceptions; | |
| 626 } | |
| 627 | |
| 628 // Get the exception klasses corresponding to the | |
| 629 // exceptional successors for this Block. | |
| 630 GrowableArray<ciInstanceKlass*>* exc_klasses() { | |
| 631 if (_exc_klasses == NULL) { | |
| 632 compute_exceptions(); | |
| 633 } | |
| 634 return _exc_klasses; | |
| 635 } | |
| 636 | |
| 637 // Is this Block compatible with a given JsrSet? | |
| 638 bool is_compatible_with(JsrSet* other) { | |
| 639 return _jsrs->is_compatible_with(other); | |
| 640 } | |
| 641 | |
| 642 // Copy the value of our state vector into another. | |
| 643 void copy_state_into(StateVector* copy) const { | |
| 644 _state->copy_into(copy); | |
| 645 } | |
| 646 | |
| 647 // Copy the value of our JsrSet into another | |
| 648 void copy_jsrs_into(JsrSet* copy) const { | |
| 649 _jsrs->copy_into(copy); | |
| 650 } | |
| 651 | |
| 652 // Meets the start state of this block with another state, destructively | |
| 653 // modifying this one. Returns true if any modification takes place. | |
| 654 bool meet(const StateVector* incoming) { | |
| 655 return state()->meet(incoming); | |
| 656 } | |
| 657 | |
| 658 // Ditto, except that the incoming state is coming from an | |
| 659 // exception path. This means the stack is replaced by the | |
| 660 // appropriate exception type. | |
| 661 bool meet_exception(ciInstanceKlass* exc, const StateVector* incoming) { | |
| 662 return state()->meet_exception(exc, incoming); | |
| 663 } | |
| 664 | |
| 665 // Work list manipulation | |
| 666 void set_next(Block* block) { _next = block; } | |
| 667 Block* next() const { return _next; } | |
| 668 | |
| 669 void set_on_work_list(bool c) { _on_work_list = c; } | |
| 670 bool is_on_work_list() const { return _on_work_list; } | |
| 671 | |
| 672 bool has_pre_order() const { return _pre_order >= 0; } | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
673 void set_pre_order(int po) { assert(!has_pre_order(), ""); _pre_order = po; } |
| 0 | 674 int pre_order() const { assert(has_pre_order(), ""); return _pre_order; } |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
675 void set_next_pre_order() { set_pre_order(outer()->inc_next_pre_order()); } |
| 0 | 676 bool is_start() const { return _pre_order == outer()->start_block_num(); } |
| 677 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
678 // Reverse post order |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
679 void df_init(); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
680 bool has_post_order() const { return _post_order >= 0; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
681 void set_post_order(int po) { assert(!has_post_order() && po >= 0, ""); _post_order = po; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
682 void reset_post_order(int o){ _post_order = o; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
683 int post_order() const { assert(has_post_order(), ""); return _post_order; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
684 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
685 bool has_rpo() const { return has_post_order() && outer()->have_block_count(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
686 int rpo() const { assert(has_rpo(), ""); return outer()->block_count() - post_order() - 1; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
687 void set_rpo_next(Block* b) { _rpo_next = b; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
688 Block* rpo_next() { return _rpo_next; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
689 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
690 // Loops |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
691 Loop* loop() const { return _loop; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
692 void set_loop(Loop* lp) { _loop = lp; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
693 bool is_loop_head() const { return _loop && _loop->head() == this; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
694 void set_irreducible_entry(bool c) { _irreducible_entry = c; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
695 bool is_irreducible_entry() const { return _irreducible_entry; } |
| 4777 | 696 void set_has_monitorenter() { _has_monitorenter = true; } |
| 697 bool has_monitorenter() const { return _has_monitorenter; } | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
698 bool is_visited() const { return has_pre_order(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
699 bool is_post_visited() const { return has_post_order(); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
700 bool is_clonable_exit(Loop* lp); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
701 Block* looping_succ(Loop* lp); // Successor inside of loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
702 bool is_single_entry_loop_head() const { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
703 if (!is_loop_head()) return false; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
704 for (Loop* lp = loop(); lp != NULL && lp->head() == this; lp = lp->parent()) |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
705 if (lp->is_irreducible()) return false; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
706 return true; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
707 } |
| 0 | 708 |
| 709 void print_value_on(outputStream* st) const PRODUCT_RETURN; | |
| 710 void print_on(outputStream* st) const PRODUCT_RETURN; | |
| 711 }; | |
| 712 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
713 // Loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
714 class Loop : public ResourceObj { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
715 private: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
716 Loop* _parent; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
717 Loop* _sibling; // List of siblings, null terminated |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
718 Loop* _child; // Head of child list threaded thru sibling pointer |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
719 Block* _head; // Head of loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
720 Block* _tail; // Tail of loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
721 bool _irreducible; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
722 LocalSet _def_locals; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
723 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
724 public: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
725 Loop(Block* head, Block* tail) : |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
726 _head(head), _tail(tail), |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
727 _parent(NULL), _sibling(NULL), _child(NULL), |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
728 _irreducible(false), _def_locals() {} |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
729 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
730 Loop* parent() const { return _parent; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
731 Loop* sibling() const { return _sibling; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
732 Loop* child() const { return _child; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
733 Block* head() const { return _head; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
734 Block* tail() const { return _tail; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
735 void set_parent(Loop* p) { _parent = p; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
736 void set_sibling(Loop* s) { _sibling = s; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
737 void set_child(Loop* c) { _child = c; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
738 void set_head(Block* hd) { _head = hd; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
739 void set_tail(Block* tl) { _tail = tl; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
740 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
741 int depth() const; // nesting depth |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
742 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
743 // Returns true if lp is a nested loop or us. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
744 bool contains(Loop* lp) const; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
745 bool contains(Block* blk) const { return contains(blk->loop()); } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
746 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
747 // Data flow on locals |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
748 LocalSet* def_locals() { return &_def_locals; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
749 const LocalSet* def_locals() const { return &_def_locals; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
750 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
751 // Merge the branch lp into this branch, sorting on the loop head |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
752 // pre_orders. Returns the new branch. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
753 Loop* sorted_merge(Loop* lp); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
754 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
755 // Mark non-single entry to loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
756 void set_irreducible(Block* entry) { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
757 _irreducible = true; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
758 entry->set_irreducible_entry(true); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
759 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
760 bool is_irreducible() const { return _irreducible; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
761 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
762 bool is_root() const { return _tail->pre_order() == max_jint; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
763 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
764 void print(outputStream* st = tty, int indent = 0) const PRODUCT_RETURN; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
765 }; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
766 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
767 // Postorder iteration over the loop tree. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
768 class PostorderLoops : public StackObj { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
769 private: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
770 Loop* _root; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
771 Loop* _current; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
772 public: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
773 PostorderLoops(Loop* root) : _root(root), _current(root) { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
774 while (_current->child() != NULL) { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
775 _current = _current->child(); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
776 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
777 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
778 bool done() { return _current == NULL; } // Finished iterating? |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
779 void next(); // Advance to next loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
780 Loop* current() { return _current; } // Return current loop. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
781 }; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
782 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
783 // Preorder iteration over the loop tree. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
784 class PreorderLoops : public StackObj { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
785 private: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
786 Loop* _root; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
787 Loop* _current; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
788 public: |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
789 PreorderLoops(Loop* root) : _root(root), _current(root) {} |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
790 bool done() { return _current == NULL; } // Finished iterating? |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
791 void next(); // Advance to next loop |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
792 Loop* current() { return _current; } // Return current loop. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
793 }; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
794 |
| 0 | 795 // Standard indexes of successors, for various bytecodes. |
| 796 enum { | |
| 797 FALL_THROUGH = 0, // normal control | |
| 798 IF_NOT_TAKEN = 0, // the not-taken branch of an if (i.e., fall-through) | |
| 799 IF_TAKEN = 1, // the taken branch of an if | |
| 800 GOTO_TARGET = 0, // unique successor for goto, jsr, or ret | |
| 801 SWITCH_DEFAULT = 0, // default branch of a switch | |
| 802 SWITCH_CASES = 1 // first index for any non-default switch branches | |
| 803 // Unlike in other blocks, the successors of a switch are listed uniquely. | |
| 804 }; | |
| 805 | |
| 806 private: | |
| 807 // A mapping from pre_order to Blocks. This array is created | |
| 808 // only at the end of the flow. | |
| 809 Block** _block_map; | |
| 810 | |
| 811 // For each ciBlock index, a list of Blocks which share this ciBlock. | |
| 812 GrowableArray<Block*>** _idx_to_blocklist; | |
| 813 // count of ciBlocks | |
| 814 int _ciblock_count; | |
| 815 | |
| 816 // Tells if a given instruction is able to generate an exception edge. | |
| 817 bool can_trap(ciBytecodeStream& str); | |
| 818 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
819 // Clone the loop heads. Returns true if any cloning occurred. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
820 bool clone_loop_heads(Loop* lp, StateVector* temp_vector, JsrSet* temp_set); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
821 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
822 // Clone lp's head and replace tail's successors with clone. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
823 Block* clone_loop_head(Loop* lp, StateVector* temp_vector, JsrSet* temp_set); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
824 |
| 0 | 825 public: |
| 826 // Return the block beginning at bci which has a JsrSet compatible | |
| 827 // with jsrs. | |
| 828 Block* block_at(int bci, JsrSet* set, CreateOption option = create_public_copy); | |
| 829 | |
| 830 // block factory | |
| 831 Block* get_block_for(int ciBlockIndex, JsrSet* jsrs, CreateOption option = create_public_copy); | |
| 832 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
833 // How many of the blocks have the backedge_copy bit set? |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
834 int backedge_copy_count(int ciBlockIndex, JsrSet* jsrs) const; |
| 0 | 835 |
| 836 // Return an existing block containing bci which has a JsrSet compatible | |
| 837 // with jsrs, or NULL if there is none. | |
| 838 Block* existing_block_at(int bci, JsrSet* set) { return block_at(bci, set, no_create); } | |
| 839 | |
| 840 // Tell whether the flow analysis has encountered an error of some sort. | |
| 841 bool failing() { return env()->failing() || _failure_reason != NULL; } | |
| 842 | |
| 843 // Reason this compilation is failing, such as "too many basic blocks". | |
| 844 const char* failure_reason() { return _failure_reason; } | |
| 845 | |
| 846 // Note a failure. | |
| 847 void record_failure(const char* reason); | |
| 848 | |
| 849 // Return the block of a given pre-order number. | |
| 850 int have_block_count() const { return _block_map != NULL; } | |
| 851 int block_count() const { assert(have_block_count(), ""); | |
| 852 return _next_pre_order; } | |
| 853 Block* pre_order_at(int po) const { assert(0 <= po && po < block_count(), "out of bounds"); | |
| 854 return _block_map[po]; } | |
| 855 Block* start_block() const { return pre_order_at(start_block_num()); } | |
| 856 int start_block_num() const { return 0; } | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
857 Block* rpo_at(int rpo) const { assert(0 <= rpo && rpo < block_count(), "out of bounds"); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
858 return _block_map[rpo]; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
859 int next_pre_order() { return _next_pre_order; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
860 int inc_next_pre_order() { return _next_pre_order++; } |
| 0 | 861 |
| 862 private: | |
| 863 // A work list used during flow analysis. | |
| 864 Block* _work_list; | |
| 865 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
866 // List of blocks in reverse post order |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
867 Block* _rpo_list; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
868 |
| 0 | 869 // Next Block::_pre_order. After mapping, doubles as block_count. |
| 870 int _next_pre_order; | |
| 871 | |
| 872 // Are there more blocks on the work list? | |
| 873 bool work_list_empty() { return _work_list == NULL; } | |
| 874 | |
| 875 // Get the next basic block from our work list. | |
| 876 Block* work_list_next(); | |
| 877 | |
| 878 // Add a basic block to our work list. | |
| 879 void add_to_work_list(Block* block); | |
| 880 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
881 // Prepend a basic block to rpo list. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
882 void prepend_to_rpo_list(Block* blk) { |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
883 blk->set_rpo_next(_rpo_list); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
884 _rpo_list = blk; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
885 } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
886 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
887 // Root of the loop tree |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
888 Loop* _loop_tree_root; |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
889 |
| 0 | 890 // State used for make_jsr_record |
| 891 int _jsr_count; | |
| 892 GrowableArray<JsrRecord*>* _jsr_records; | |
| 893 | |
| 894 public: | |
| 895 // Make a JsrRecord for a given (entry, return) pair, if such a record | |
| 896 // does not already exist. | |
| 897 JsrRecord* make_jsr_record(int entry_address, int return_address); | |
| 898 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
899 void set_loop_tree_root(Loop* ltr) { _loop_tree_root = ltr; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
900 Loop* loop_tree_root() { return _loop_tree_root; } |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
901 |
| 0 | 902 private: |
| 903 // Get the initial state for start_bci: | |
| 904 const StateVector* get_start_state(); | |
| 905 | |
| 906 // Merge the current state into all exceptional successors at the | |
| 907 // current point in the code. | |
| 908 void flow_exceptions(GrowableArray<Block*>* exceptions, | |
| 909 GrowableArray<ciInstanceKlass*>* exc_klasses, | |
| 910 StateVector* state); | |
| 911 | |
| 912 // Merge the current state into all successors at the current point | |
| 913 // in the code. | |
| 914 void flow_successors(GrowableArray<Block*>* successors, | |
| 915 StateVector* state); | |
| 916 | |
| 917 // Interpret the effects of the bytecodes on the incoming state | |
| 918 // vector of a basic block. Push the changed state to succeeding | |
| 919 // basic blocks. | |
| 920 void flow_block(Block* block, | |
| 921 StateVector* scratch_state, | |
| 922 JsrSet* scratch_jsrs); | |
| 923 | |
| 924 // Perform the type flow analysis, creating and cloning Blocks as | |
| 925 // necessary. | |
| 926 void flow_types(); | |
| 927 | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
928 // Perform the depth first type flow analysis. Helper for flow_types. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
929 void df_flow_types(Block* start, |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
930 bool do_flow, |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
931 StateVector* temp_vector, |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
932 JsrSet* temp_set); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
933 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
934 // Incrementally build loop tree. |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
935 void build_loop_tree(Block* blk); |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
936 |
| 0 | 937 // Create the block map, which indexes blocks in pre_order. |
| 938 void map_blocks(); | |
| 939 | |
| 940 public: | |
| 941 // Perform type inference flow analysis. | |
| 942 void do_flow(); | |
| 943 | |
| 944 void print_on(outputStream* st) const PRODUCT_RETURN; | |
|
367
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
945 |
|
194b8e3a2fc4
6384206: Phis which are later unneeded are impairing our ability to inline based on static types
never
parents:
303
diff
changeset
|
946 void rpo_print_on(outputStream* st) const PRODUCT_RETURN; |
| 0 | 947 }; |
| 1972 | 948 |
| 949 #endif // SHARE_VM_CI_CITYPEFLOW_HPP |