Mercurial > hg > truffle
annotate src/share/vm/c1/c1_LIRGenerator.cpp @ 20575:b9c94af14fd0
8059445: Remove CompilationRepeat
Summary: Remove product flag -XX:CompilationRepeat
Reviewed-by: kvn, iveresov
| author | neliasso |
|---|---|
| date | Mon, 20 Oct 2014 13:22:28 +0200 |
| parents | b29261b17343 |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2005, 2013, 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "c1/c1_Compilation.hpp" | |
| 27 #include "c1/c1_FrameMap.hpp" | |
| 28 #include "c1/c1_Instruction.hpp" | |
| 29 #include "c1/c1_LIRAssembler.hpp" | |
| 30 #include "c1/c1_LIRGenerator.hpp" | |
| 31 #include "c1/c1_ValueStack.hpp" | |
| 32 #include "ci/ciArrayKlass.hpp" | |
| 33 #include "ci/ciInstance.hpp" | |
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34 #include "ci/ciObjArray.hpp" |
| 1972 | 35 #include "runtime/sharedRuntime.hpp" |
| 36 #include "runtime/stubRoutines.hpp" | |
| 37 #include "utilities/bitMap.inline.hpp" | |
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38 #include "utilities/macros.hpp" |
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39 #if INCLUDE_ALL_GCS |
| 1972 | 40 #include "gc_implementation/g1/heapRegion.hpp" |
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41 #endif // INCLUDE_ALL_GCS |
| 0 | 42 |
| 43 #ifdef ASSERT | |
| 44 #define __ gen()->lir(__FILE__, __LINE__)-> | |
| 45 #else | |
| 46 #define __ gen()->lir()-> | |
| 47 #endif | |
| 48 | |
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49 // TODO: ARM - Use some recognizable constant which still fits architectural constraints |
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50 #ifdef ARM |
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51 #define PATCHED_ADDR (204) |
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52 #else |
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53 #define PATCHED_ADDR (max_jint) |
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54 #endif |
| 0 | 55 |
| 56 void PhiResolverState::reset(int max_vregs) { | |
| 57 // Initialize array sizes | |
| 58 _virtual_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
| 59 _virtual_operands.trunc_to(0); | |
| 60 _other_operands.at_put_grow(max_vregs - 1, NULL, NULL); | |
| 61 _other_operands.trunc_to(0); | |
| 62 _vreg_table.at_put_grow(max_vregs - 1, NULL, NULL); | |
| 63 _vreg_table.trunc_to(0); | |
| 64 } | |
| 65 | |
| 66 | |
| 67 | |
| 68 //-------------------------------------------------------------- | |
| 69 // PhiResolver | |
| 70 | |
| 71 // Resolves cycles: | |
| 72 // | |
| 73 // r1 := r2 becomes temp := r1 | |
| 74 // r2 := r1 r1 := r2 | |
| 75 // r2 := temp | |
| 76 // and orders moves: | |
| 77 // | |
| 78 // r2 := r3 becomes r1 := r2 | |
| 79 // r1 := r2 r2 := r3 | |
| 80 | |
| 81 PhiResolver::PhiResolver(LIRGenerator* gen, int max_vregs) | |
| 82 : _gen(gen) | |
| 83 , _state(gen->resolver_state()) | |
| 84 , _temp(LIR_OprFact::illegalOpr) | |
| 85 { | |
| 86 // reinitialize the shared state arrays | |
| 87 _state.reset(max_vregs); | |
| 88 } | |
| 89 | |
| 90 | |
| 91 void PhiResolver::emit_move(LIR_Opr src, LIR_Opr dest) { | |
| 92 assert(src->is_valid(), ""); | |
| 93 assert(dest->is_valid(), ""); | |
| 94 __ move(src, dest); | |
| 95 } | |
| 96 | |
| 97 | |
| 98 void PhiResolver::move_temp_to(LIR_Opr dest) { | |
| 99 assert(_temp->is_valid(), ""); | |
| 100 emit_move(_temp, dest); | |
| 101 NOT_PRODUCT(_temp = LIR_OprFact::illegalOpr); | |
| 102 } | |
| 103 | |
| 104 | |
| 105 void PhiResolver::move_to_temp(LIR_Opr src) { | |
| 106 assert(_temp->is_illegal(), ""); | |
| 107 _temp = _gen->new_register(src->type()); | |
| 108 emit_move(src, _temp); | |
| 109 } | |
| 110 | |
| 111 | |
| 112 // Traverse assignment graph in depth first order and generate moves in post order | |
| 113 // ie. two assignments: b := c, a := b start with node c: | |
| 114 // Call graph: move(NULL, c) -> move(c, b) -> move(b, a) | |
| 115 // Generates moves in this order: move b to a and move c to b | |
| 116 // ie. cycle a := b, b := a start with node a | |
| 117 // Call graph: move(NULL, a) -> move(a, b) -> move(b, a) | |
| 118 // Generates moves in this order: move b to temp, move a to b, move temp to a | |
| 119 void PhiResolver::move(ResolveNode* src, ResolveNode* dest) { | |
| 120 if (!dest->visited()) { | |
| 121 dest->set_visited(); | |
| 122 for (int i = dest->no_of_destinations()-1; i >= 0; i --) { | |
| 123 move(dest, dest->destination_at(i)); | |
| 124 } | |
| 125 } else if (!dest->start_node()) { | |
| 126 // cylce in graph detected | |
| 127 assert(_loop == NULL, "only one loop valid!"); | |
| 128 _loop = dest; | |
| 129 move_to_temp(src->operand()); | |
| 130 return; | |
| 131 } // else dest is a start node | |
| 132 | |
| 133 if (!dest->assigned()) { | |
| 134 if (_loop == dest) { | |
| 135 move_temp_to(dest->operand()); | |
| 136 dest->set_assigned(); | |
| 137 } else if (src != NULL) { | |
| 138 emit_move(src->operand(), dest->operand()); | |
| 139 dest->set_assigned(); | |
| 140 } | |
| 141 } | |
| 142 } | |
| 143 | |
| 144 | |
| 145 PhiResolver::~PhiResolver() { | |
| 146 int i; | |
| 147 // resolve any cycles in moves from and to virtual registers | |
| 148 for (i = virtual_operands().length() - 1; i >= 0; i --) { | |
| 149 ResolveNode* node = virtual_operands()[i]; | |
| 150 if (!node->visited()) { | |
| 151 _loop = NULL; | |
| 152 move(NULL, node); | |
| 153 node->set_start_node(); | |
| 154 assert(_temp->is_illegal(), "move_temp_to() call missing"); | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 // generate move for move from non virtual register to abitrary destination | |
| 159 for (i = other_operands().length() - 1; i >= 0; i --) { | |
| 160 ResolveNode* node = other_operands()[i]; | |
| 161 for (int j = node->no_of_destinations() - 1; j >= 0; j --) { | |
| 162 emit_move(node->operand(), node->destination_at(j)->operand()); | |
| 163 } | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 | |
| 168 ResolveNode* PhiResolver::create_node(LIR_Opr opr, bool source) { | |
| 169 ResolveNode* node; | |
| 170 if (opr->is_virtual()) { | |
| 171 int vreg_num = opr->vreg_number(); | |
| 172 node = vreg_table().at_grow(vreg_num, NULL); | |
| 173 assert(node == NULL || node->operand() == opr, ""); | |
| 174 if (node == NULL) { | |
| 175 node = new ResolveNode(opr); | |
| 176 vreg_table()[vreg_num] = node; | |
| 177 } | |
| 178 // Make sure that all virtual operands show up in the list when | |
| 179 // they are used as the source of a move. | |
| 180 if (source && !virtual_operands().contains(node)) { | |
| 181 virtual_operands().append(node); | |
| 182 } | |
| 183 } else { | |
| 184 assert(source, ""); | |
| 185 node = new ResolveNode(opr); | |
| 186 other_operands().append(node); | |
| 187 } | |
| 188 return node; | |
| 189 } | |
| 190 | |
| 191 | |
| 192 void PhiResolver::move(LIR_Opr src, LIR_Opr dest) { | |
| 193 assert(dest->is_virtual(), ""); | |
| 194 // tty->print("move "); src->print(); tty->print(" to "); dest->print(); tty->cr(); | |
| 195 assert(src->is_valid(), ""); | |
| 196 assert(dest->is_valid(), ""); | |
| 197 ResolveNode* source = source_node(src); | |
| 198 source->append(destination_node(dest)); | |
| 199 } | |
| 200 | |
| 201 | |
| 202 //-------------------------------------------------------------- | |
| 203 // LIRItem | |
| 204 | |
| 205 void LIRItem::set_result(LIR_Opr opr) { | |
| 206 assert(value()->operand()->is_illegal() || value()->operand()->is_constant(), "operand should never change"); | |
| 207 value()->set_operand(opr); | |
| 208 | |
| 209 if (opr->is_virtual()) { | |
| 210 _gen->_instruction_for_operand.at_put_grow(opr->vreg_number(), value(), NULL); | |
| 211 } | |
| 212 | |
| 213 _result = opr; | |
| 214 } | |
| 215 | |
| 216 void LIRItem::load_item() { | |
| 217 if (result()->is_illegal()) { | |
| 218 // update the items result | |
| 219 _result = value()->operand(); | |
| 220 } | |
| 221 if (!result()->is_register()) { | |
| 222 LIR_Opr reg = _gen->new_register(value()->type()); | |
| 223 __ move(result(), reg); | |
| 224 if (result()->is_constant()) { | |
| 225 _result = reg; | |
| 226 } else { | |
| 227 set_result(reg); | |
| 228 } | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 | |
| 233 void LIRItem::load_for_store(BasicType type) { | |
| 234 if (_gen->can_store_as_constant(value(), type)) { | |
| 235 _result = value()->operand(); | |
| 236 if (!_result->is_constant()) { | |
| 237 _result = LIR_OprFact::value_type(value()->type()); | |
| 238 } | |
| 239 } else if (type == T_BYTE || type == T_BOOLEAN) { | |
| 240 load_byte_item(); | |
| 241 } else { | |
| 242 load_item(); | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 void LIRItem::load_item_force(LIR_Opr reg) { | |
| 247 LIR_Opr r = result(); | |
| 248 if (r != reg) { | |
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249 #if !defined(ARM) && !defined(E500V2) |
| 0 | 250 if (r->type() != reg->type()) { |
| 251 // moves between different types need an intervening spill slot | |
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252 r = _gen->force_to_spill(r, reg->type()); |
| 0 | 253 } |
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254 #endif |
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255 __ move(r, reg); |
| 0 | 256 _result = reg; |
| 257 } | |
| 258 } | |
| 259 | |
| 260 ciObject* LIRItem::get_jobject_constant() const { | |
| 261 ObjectType* oc = type()->as_ObjectType(); | |
| 262 if (oc) { | |
| 263 return oc->constant_value(); | |
| 264 } | |
| 265 return NULL; | |
| 266 } | |
| 267 | |
| 268 | |
| 269 jint LIRItem::get_jint_constant() const { | |
| 270 assert(is_constant() && value() != NULL, ""); | |
| 271 assert(type()->as_IntConstant() != NULL, "type check"); | |
| 272 return type()->as_IntConstant()->value(); | |
| 273 } | |
| 274 | |
| 275 | |
| 276 jint LIRItem::get_address_constant() const { | |
| 277 assert(is_constant() && value() != NULL, ""); | |
| 278 assert(type()->as_AddressConstant() != NULL, "type check"); | |
| 279 return type()->as_AddressConstant()->value(); | |
| 280 } | |
| 281 | |
| 282 | |
| 283 jfloat LIRItem::get_jfloat_constant() const { | |
| 284 assert(is_constant() && value() != NULL, ""); | |
| 285 assert(type()->as_FloatConstant() != NULL, "type check"); | |
| 286 return type()->as_FloatConstant()->value(); | |
| 287 } | |
| 288 | |
| 289 | |
| 290 jdouble LIRItem::get_jdouble_constant() const { | |
| 291 assert(is_constant() && value() != NULL, ""); | |
| 292 assert(type()->as_DoubleConstant() != NULL, "type check"); | |
| 293 return type()->as_DoubleConstant()->value(); | |
| 294 } | |
| 295 | |
| 296 | |
| 297 jlong LIRItem::get_jlong_constant() const { | |
| 298 assert(is_constant() && value() != NULL, ""); | |
| 299 assert(type()->as_LongConstant() != NULL, "type check"); | |
| 300 return type()->as_LongConstant()->value(); | |
| 301 } | |
| 302 | |
| 303 | |
| 304 | |
| 305 //-------------------------------------------------------------- | |
| 306 | |
| 307 | |
| 308 void LIRGenerator::init() { | |
| 342 | 309 _bs = Universe::heap()->barrier_set(); |
| 0 | 310 } |
| 311 | |
| 312 | |
| 313 void LIRGenerator::block_do_prolog(BlockBegin* block) { | |
| 314 #ifndef PRODUCT | |
| 315 if (PrintIRWithLIR) { | |
| 316 block->print(); | |
| 317 } | |
| 318 #endif | |
| 319 | |
| 320 // set up the list of LIR instructions | |
| 321 assert(block->lir() == NULL, "LIR list already computed for this block"); | |
| 322 _lir = new LIR_List(compilation(), block); | |
| 323 block->set_lir(_lir); | |
| 324 | |
| 325 __ branch_destination(block->label()); | |
| 326 | |
| 327 if (LIRTraceExecution && | |
| 1584 | 328 Compilation::current()->hir()->start()->block_id() != block->block_id() && |
| 0 | 329 !block->is_set(BlockBegin::exception_entry_flag)) { |
| 330 assert(block->lir()->instructions_list()->length() == 1, "should come right after br_dst"); | |
| 331 trace_block_entry(block); | |
| 332 } | |
| 333 } | |
| 334 | |
| 335 | |
| 336 void LIRGenerator::block_do_epilog(BlockBegin* block) { | |
| 337 #ifndef PRODUCT | |
| 338 if (PrintIRWithLIR) { | |
| 339 tty->cr(); | |
| 340 } | |
| 341 #endif | |
| 342 | |
| 343 // LIR_Opr for unpinned constants shouldn't be referenced by other | |
| 344 // blocks so clear them out after processing the block. | |
| 345 for (int i = 0; i < _unpinned_constants.length(); i++) { | |
| 346 _unpinned_constants.at(i)->clear_operand(); | |
| 347 } | |
| 348 _unpinned_constants.trunc_to(0); | |
| 349 | |
| 350 // clear our any registers for other local constants | |
| 351 _constants.trunc_to(0); | |
| 352 _reg_for_constants.trunc_to(0); | |
| 353 } | |
| 354 | |
| 355 | |
| 356 void LIRGenerator::block_do(BlockBegin* block) { | |
| 357 CHECK_BAILOUT(); | |
| 358 | |
| 359 block_do_prolog(block); | |
| 360 set_block(block); | |
| 361 | |
| 362 for (Instruction* instr = block; instr != NULL; instr = instr->next()) { | |
| 363 if (instr->is_pinned()) do_root(instr); | |
| 364 } | |
| 365 | |
| 366 set_block(NULL); | |
| 367 block_do_epilog(block); | |
| 368 } | |
| 369 | |
| 370 | |
| 371 //-------------------------LIRGenerator----------------------------- | |
| 372 | |
| 373 // This is where the tree-walk starts; instr must be root; | |
| 374 void LIRGenerator::do_root(Value instr) { | |
| 375 CHECK_BAILOUT(); | |
| 376 | |
| 377 InstructionMark im(compilation(), instr); | |
| 378 | |
| 379 assert(instr->is_pinned(), "use only with roots"); | |
| 380 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
| 381 | |
| 382 instr->visit(this); | |
| 383 | |
| 384 assert(!instr->has_uses() || instr->operand()->is_valid() || | |
| 385 instr->as_Constant() != NULL || bailed_out(), "invalid item set"); | |
| 386 } | |
| 387 | |
| 388 | |
| 389 // This is called for each node in tree; the walk stops if a root is reached | |
| 390 void LIRGenerator::walk(Value instr) { | |
| 391 InstructionMark im(compilation(), instr); | |
| 392 //stop walk when encounter a root | |
| 393 if (instr->is_pinned() && instr->as_Phi() == NULL || instr->operand()->is_valid()) { | |
| 394 assert(instr->operand() != LIR_OprFact::illegalOpr || instr->as_Constant() != NULL, "this root has not yet been visited"); | |
| 395 } else { | |
| 396 assert(instr->subst() == instr, "shouldn't have missed substitution"); | |
| 397 instr->visit(this); | |
| 398 // assert(instr->use_count() > 0 || instr->as_Phi() != NULL, "leaf instruction must have a use"); | |
| 399 } | |
| 400 } | |
| 401 | |
| 402 | |
| 403 CodeEmitInfo* LIRGenerator::state_for(Instruction* x, ValueStack* state, bool ignore_xhandler) { | |
| 1819 | 404 assert(state != NULL, "state must be defined"); |
| 405 | |
| 8860 | 406 #ifndef PRODUCT |
| 407 state->verify(); | |
| 408 #endif | |
| 409 | |
| 1819 | 410 ValueStack* s = state; |
| 411 for_each_state(s) { | |
| 412 if (s->kind() == ValueStack::EmptyExceptionState) { | |
| 413 assert(s->stack_size() == 0 && s->locals_size() == 0 && (s->locks_size() == 0 || s->locks_size() == 1), "state must be empty"); | |
| 414 continue; | |
| 0 | 415 } |
| 1819 | 416 |
| 417 int index; | |
| 418 Value value; | |
| 419 for_each_stack_value(s, index, value) { | |
| 420 assert(value->subst() == value, "missed substitution"); | |
| 421 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
| 422 walk(value); | |
| 423 assert(value->operand()->is_valid(), "must be evaluated now"); | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 int bci = s->bci(); | |
| 0 | 428 IRScope* scope = s->scope(); |
| 429 ciMethod* method = scope->method(); | |
| 430 | |
| 431 MethodLivenessResult liveness = method->liveness_at_bci(bci); | |
| 432 if (bci == SynchronizationEntryBCI) { | |
| 433 if (x->as_ExceptionObject() || x->as_Throw()) { | |
| 434 // all locals are dead on exit from the synthetic unlocker | |
| 435 liveness.clear(); | |
| 436 } else { | |
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437 assert(x->as_MonitorEnter() || x->as_ProfileInvoke(), "only other cases are MonitorEnter and ProfileInvoke"); |
| 0 | 438 } |
| 439 } | |
| 440 if (!liveness.is_valid()) { | |
| 441 // Degenerate or breakpointed method. | |
| 442 bailout("Degenerate or breakpointed method"); | |
| 443 } else { | |
| 444 assert((int)liveness.size() == s->locals_size(), "error in use of liveness"); | |
| 445 for_each_local_value(s, index, value) { | |
| 446 assert(value->subst() == value, "missed substition"); | |
| 447 if (liveness.at(index) && !value->type()->is_illegal()) { | |
| 448 if (!value->is_pinned() && value->as_Constant() == NULL && value->as_Local() == NULL) { | |
| 449 walk(value); | |
| 450 assert(value->operand()->is_valid(), "must be evaluated now"); | |
| 451 } | |
| 452 } else { | |
| 453 // NULL out this local so that linear scan can assume that all non-NULL values are live. | |
| 454 s->invalidate_local(index); | |
| 455 } | |
| 456 } | |
| 457 } | |
| 458 } | |
| 459 | |
| 8860 | 460 return new CodeEmitInfo(state, ignore_xhandler ? NULL : x->exception_handlers(), x->check_flag(Instruction::DeoptimizeOnException)); |
| 0 | 461 } |
| 462 | |
| 463 | |
| 464 CodeEmitInfo* LIRGenerator::state_for(Instruction* x) { | |
| 1819 | 465 return state_for(x, x->exception_state()); |
| 0 | 466 } |
| 467 | |
| 468 | |
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469 void LIRGenerator::klass2reg_with_patching(LIR_Opr r, ciMetadata* obj, CodeEmitInfo* info, bool need_resolve) { |
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470 /* C2 relies on constant pool entries being resolved (ciTypeFlow), so if TieredCompilation |
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471 * is active and the class hasn't yet been resolved we need to emit a patch that resolves |
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472 * the class. */ |
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473 if ((TieredCompilation && need_resolve) || !obj->is_loaded() || PatchALot) { |
| 0 | 474 assert(info != NULL, "info must be set if class is not loaded"); |
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475 __ klass2reg_patch(NULL, r, info); |
| 0 | 476 } else { |
| 477 // no patching needed | |
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478 __ metadata2reg(obj->constant_encoding(), r); |
| 0 | 479 } |
| 480 } | |
| 481 | |
| 482 | |
| 483 void LIRGenerator::array_range_check(LIR_Opr array, LIR_Opr index, | |
| 484 CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info) { | |
| 485 CodeStub* stub = new RangeCheckStub(range_check_info, index); | |
| 486 if (index->is_constant()) { | |
| 487 cmp_mem_int(lir_cond_belowEqual, array, arrayOopDesc::length_offset_in_bytes(), | |
| 488 index->as_jint(), null_check_info); | |
| 489 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
| 490 } else { | |
| 491 cmp_reg_mem(lir_cond_aboveEqual, index, array, | |
| 492 arrayOopDesc::length_offset_in_bytes(), T_INT, null_check_info); | |
| 493 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
| 494 } | |
| 495 } | |
| 496 | |
| 497 | |
| 498 void LIRGenerator::nio_range_check(LIR_Opr buffer, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info) { | |
| 499 CodeStub* stub = new RangeCheckStub(info, index, true); | |
| 500 if (index->is_constant()) { | |
| 501 cmp_mem_int(lir_cond_belowEqual, buffer, java_nio_Buffer::limit_offset(), index->as_jint(), info); | |
| 502 __ branch(lir_cond_belowEqual, T_INT, stub); // forward branch | |
| 503 } else { | |
| 504 cmp_reg_mem(lir_cond_aboveEqual, index, buffer, | |
| 505 java_nio_Buffer::limit_offset(), T_INT, info); | |
| 506 __ branch(lir_cond_aboveEqual, T_INT, stub); // forward branch | |
| 507 } | |
| 508 __ move(index, result); | |
| 509 } | |
| 510 | |
| 511 | |
| 512 | |
| 513 void LIRGenerator::arithmetic_op(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp_op, CodeEmitInfo* info) { | |
| 514 LIR_Opr result_op = result; | |
| 515 LIR_Opr left_op = left; | |
| 516 LIR_Opr right_op = right; | |
| 517 | |
| 518 if (TwoOperandLIRForm && left_op != result_op) { | |
| 519 assert(right_op != result_op, "malformed"); | |
| 520 __ move(left_op, result_op); | |
| 521 left_op = result_op; | |
| 522 } | |
| 523 | |
| 524 switch(code) { | |
| 525 case Bytecodes::_dadd: | |
| 526 case Bytecodes::_fadd: | |
| 527 case Bytecodes::_ladd: | |
| 528 case Bytecodes::_iadd: __ add(left_op, right_op, result_op); break; | |
| 529 case Bytecodes::_fmul: | |
| 530 case Bytecodes::_lmul: __ mul(left_op, right_op, result_op); break; | |
| 531 | |
| 532 case Bytecodes::_dmul: | |
| 533 { | |
| 534 if (is_strictfp) { | |
| 535 __ mul_strictfp(left_op, right_op, result_op, tmp_op); break; | |
| 536 } else { | |
| 537 __ mul(left_op, right_op, result_op); break; | |
| 538 } | |
| 539 } | |
| 540 break; | |
| 541 | |
| 542 case Bytecodes::_imul: | |
| 543 { | |
| 544 bool did_strength_reduce = false; | |
| 545 | |
| 546 if (right->is_constant()) { | |
| 547 int c = right->as_jint(); | |
| 548 if (is_power_of_2(c)) { | |
| 549 // do not need tmp here | |
| 550 __ shift_left(left_op, exact_log2(c), result_op); | |
| 551 did_strength_reduce = true; | |
| 552 } else { | |
| 553 did_strength_reduce = strength_reduce_multiply(left_op, c, result_op, tmp_op); | |
| 554 } | |
| 555 } | |
| 556 // we couldn't strength reduce so just emit the multiply | |
| 557 if (!did_strength_reduce) { | |
| 558 __ mul(left_op, right_op, result_op); | |
| 559 } | |
| 560 } | |
| 561 break; | |
| 562 | |
| 563 case Bytecodes::_dsub: | |
| 564 case Bytecodes::_fsub: | |
| 565 case Bytecodes::_lsub: | |
| 566 case Bytecodes::_isub: __ sub(left_op, right_op, result_op); break; | |
| 567 | |
| 568 case Bytecodes::_fdiv: __ div (left_op, right_op, result_op); break; | |
| 569 // ldiv and lrem are implemented with a direct runtime call | |
| 570 | |
| 571 case Bytecodes::_ddiv: | |
| 572 { | |
| 573 if (is_strictfp) { | |
| 574 __ div_strictfp (left_op, right_op, result_op, tmp_op); break; | |
| 575 } else { | |
| 576 __ div (left_op, right_op, result_op); break; | |
| 577 } | |
| 578 } | |
| 579 break; | |
| 580 | |
| 581 case Bytecodes::_drem: | |
| 582 case Bytecodes::_frem: __ rem (left_op, right_op, result_op); break; | |
| 583 | |
| 584 default: ShouldNotReachHere(); | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 | |
| 589 void LIRGenerator::arithmetic_op_int(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp) { | |
| 590 arithmetic_op(code, result, left, right, false, tmp); | |
| 591 } | |
| 592 | |
| 593 | |
| 594 void LIRGenerator::arithmetic_op_long(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info) { | |
| 595 arithmetic_op(code, result, left, right, false, LIR_OprFact::illegalOpr, info); | |
| 596 } | |
| 597 | |
| 598 | |
| 599 void LIRGenerator::arithmetic_op_fpu(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp) { | |
| 600 arithmetic_op(code, result, left, right, is_strictfp, tmp); | |
| 601 } | |
| 602 | |
| 603 | |
| 604 void LIRGenerator::shift_op(Bytecodes::Code code, LIR_Opr result_op, LIR_Opr value, LIR_Opr count, LIR_Opr tmp) { | |
| 605 if (TwoOperandLIRForm && value != result_op) { | |
| 606 assert(count != result_op, "malformed"); | |
| 607 __ move(value, result_op); | |
| 608 value = result_op; | |
| 609 } | |
| 610 | |
| 611 assert(count->is_constant() || count->is_register(), "must be"); | |
| 612 switch(code) { | |
| 613 case Bytecodes::_ishl: | |
| 614 case Bytecodes::_lshl: __ shift_left(value, count, result_op, tmp); break; | |
| 615 case Bytecodes::_ishr: | |
| 616 case Bytecodes::_lshr: __ shift_right(value, count, result_op, tmp); break; | |
| 617 case Bytecodes::_iushr: | |
| 618 case Bytecodes::_lushr: __ unsigned_shift_right(value, count, result_op, tmp); break; | |
| 619 default: ShouldNotReachHere(); | |
| 620 } | |
| 621 } | |
| 622 | |
| 623 | |
| 624 void LIRGenerator::logic_op (Bytecodes::Code code, LIR_Opr result_op, LIR_Opr left_op, LIR_Opr right_op) { | |
| 625 if (TwoOperandLIRForm && left_op != result_op) { | |
| 626 assert(right_op != result_op, "malformed"); | |
| 627 __ move(left_op, result_op); | |
| 628 left_op = result_op; | |
| 629 } | |
| 630 | |
| 631 switch(code) { | |
| 632 case Bytecodes::_iand: | |
| 633 case Bytecodes::_land: __ logical_and(left_op, right_op, result_op); break; | |
| 634 | |
| 635 case Bytecodes::_ior: | |
| 636 case Bytecodes::_lor: __ logical_or(left_op, right_op, result_op); break; | |
| 637 | |
| 638 case Bytecodes::_ixor: | |
| 639 case Bytecodes::_lxor: __ logical_xor(left_op, right_op, result_op); break; | |
| 640 | |
| 641 default: ShouldNotReachHere(); | |
| 642 } | |
| 643 } | |
| 644 | |
| 645 | |
| 646 void LIRGenerator::monitor_enter(LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no, CodeEmitInfo* info_for_exception, CodeEmitInfo* info) { | |
| 647 if (!GenerateSynchronizationCode) return; | |
| 648 // for slow path, use debug info for state after successful locking | |
| 649 CodeStub* slow_path = new MonitorEnterStub(object, lock, info); | |
| 650 __ load_stack_address_monitor(monitor_no, lock); | |
| 651 // for handling NullPointerException, use debug info representing just the lock stack before this monitorenter | |
| 652 __ lock_object(hdr, object, lock, scratch, slow_path, info_for_exception); | |
| 653 } | |
| 654 | |
| 655 | |
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656 void LIRGenerator::monitor_exit(LIR_Opr object, LIR_Opr lock, LIR_Opr new_hdr, LIR_Opr scratch, int monitor_no) { |
| 0 | 657 if (!GenerateSynchronizationCode) return; |
| 658 // setup registers | |
| 659 LIR_Opr hdr = lock; | |
| 660 lock = new_hdr; | |
| 661 CodeStub* slow_path = new MonitorExitStub(lock, UseFastLocking, monitor_no); | |
| 662 __ load_stack_address_monitor(monitor_no, lock); | |
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663 __ unlock_object(hdr, object, lock, scratch, slow_path); |
| 0 | 664 } |
| 665 | |
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666 #ifndef PRODUCT |
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667 void LIRGenerator::print_if_not_loaded(const NewInstance* new_instance) { |
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668 if (PrintNotLoaded && !new_instance->klass()->is_loaded()) { |
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669 tty->print_cr(" ###class not loaded at new bci %d", new_instance->printable_bci()); |
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670 } else if (PrintNotLoaded && (TieredCompilation && new_instance->is_unresolved())) { |
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671 tty->print_cr(" ###class not resolved at new bci %d", new_instance->printable_bci()); |
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672 } |
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673 } |
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674 #endif |
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675 |
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676 void LIRGenerator::new_instance(LIR_Opr dst, ciInstanceKlass* klass, bool is_unresolved, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info) { |
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677 klass2reg_with_patching(klass_reg, klass, info, is_unresolved); |
| 0 | 678 // If klass is not loaded we do not know if the klass has finalizers: |
| 679 if (UseFastNewInstance && klass->is_loaded() | |
| 680 && !Klass::layout_helper_needs_slow_path(klass->layout_helper())) { | |
| 681 | |
| 682 Runtime1::StubID stub_id = klass->is_initialized() ? Runtime1::fast_new_instance_id : Runtime1::fast_new_instance_init_check_id; | |
| 683 | |
| 684 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, stub_id); | |
| 685 | |
| 686 assert(klass->is_loaded(), "must be loaded"); | |
| 687 // allocate space for instance | |
| 688 assert(klass->size_helper() >= 0, "illegal instance size"); | |
| 689 const int instance_size = align_object_size(klass->size_helper()); | |
| 690 __ allocate_object(dst, scratch1, scratch2, scratch3, scratch4, | |
| 691 oopDesc::header_size(), instance_size, klass_reg, !klass->is_initialized(), slow_path); | |
| 692 } else { | |
| 693 CodeStub* slow_path = new NewInstanceStub(klass_reg, dst, klass, info, Runtime1::new_instance_id); | |
| 694 __ branch(lir_cond_always, T_ILLEGAL, slow_path); | |
| 695 __ branch_destination(slow_path->continuation()); | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 | |
| 700 static bool is_constant_zero(Instruction* inst) { | |
| 701 IntConstant* c = inst->type()->as_IntConstant(); | |
| 702 if (c) { | |
| 703 return (c->value() == 0); | |
| 704 } | |
| 705 return false; | |
| 706 } | |
| 707 | |
| 708 | |
| 709 static bool positive_constant(Instruction* inst) { | |
| 710 IntConstant* c = inst->type()->as_IntConstant(); | |
| 711 if (c) { | |
| 712 return (c->value() >= 0); | |
| 713 } | |
| 714 return false; | |
| 715 } | |
| 716 | |
| 717 | |
| 718 static ciArrayKlass* as_array_klass(ciType* type) { | |
| 719 if (type != NULL && type->is_array_klass() && type->is_loaded()) { | |
| 720 return (ciArrayKlass*)type; | |
| 721 } else { | |
| 722 return NULL; | |
| 723 } | |
| 724 } | |
| 725 | |
| 2446 | 726 static ciType* phi_declared_type(Phi* phi) { |
| 727 ciType* t = phi->operand_at(0)->declared_type(); | |
| 728 if (t == NULL) { | |
| 729 return NULL; | |
| 730 } | |
| 731 for(int i = 1; i < phi->operand_count(); i++) { | |
| 732 if (t != phi->operand_at(i)->declared_type()) { | |
| 733 return NULL; | |
| 734 } | |
| 735 } | |
| 736 return t; | |
| 737 } | |
| 738 | |
| 0 | 739 void LIRGenerator::arraycopy_helper(Intrinsic* x, int* flagsp, ciArrayKlass** expected_typep) { |
| 740 Instruction* src = x->argument_at(0); | |
| 741 Instruction* src_pos = x->argument_at(1); | |
| 742 Instruction* dst = x->argument_at(2); | |
| 743 Instruction* dst_pos = x->argument_at(3); | |
| 744 Instruction* length = x->argument_at(4); | |
| 745 | |
| 746 // first try to identify the likely type of the arrays involved | |
| 747 ciArrayKlass* expected_type = NULL; | |
| 2446 | 748 bool is_exact = false, src_objarray = false, dst_objarray = false; |
| 0 | 749 { |
| 750 ciArrayKlass* src_exact_type = as_array_klass(src->exact_type()); | |
| 751 ciArrayKlass* src_declared_type = as_array_klass(src->declared_type()); | |
| 2446 | 752 Phi* phi; |
| 753 if (src_declared_type == NULL && (phi = src->as_Phi()) != NULL) { | |
| 754 src_declared_type = as_array_klass(phi_declared_type(phi)); | |
| 755 } | |
| 0 | 756 ciArrayKlass* dst_exact_type = as_array_klass(dst->exact_type()); |
| 757 ciArrayKlass* dst_declared_type = as_array_klass(dst->declared_type()); | |
| 2446 | 758 if (dst_declared_type == NULL && (phi = dst->as_Phi()) != NULL) { |
| 759 dst_declared_type = as_array_klass(phi_declared_type(phi)); | |
| 760 } | |
| 761 | |
| 0 | 762 if (src_exact_type != NULL && src_exact_type == dst_exact_type) { |
| 763 // the types exactly match so the type is fully known | |
| 764 is_exact = true; | |
| 765 expected_type = src_exact_type; | |
| 766 } else if (dst_exact_type != NULL && dst_exact_type->is_obj_array_klass()) { | |
| 767 ciArrayKlass* dst_type = (ciArrayKlass*) dst_exact_type; | |
| 768 ciArrayKlass* src_type = NULL; | |
| 769 if (src_exact_type != NULL && src_exact_type->is_obj_array_klass()) { | |
| 770 src_type = (ciArrayKlass*) src_exact_type; | |
| 771 } else if (src_declared_type != NULL && src_declared_type->is_obj_array_klass()) { | |
| 772 src_type = (ciArrayKlass*) src_declared_type; | |
| 773 } | |
| 774 if (src_type != NULL) { | |
| 775 if (src_type->element_type()->is_subtype_of(dst_type->element_type())) { | |
| 776 is_exact = true; | |
| 777 expected_type = dst_type; | |
| 778 } | |
| 779 } | |
| 780 } | |
| 781 // at least pass along a good guess | |
| 782 if (expected_type == NULL) expected_type = dst_exact_type; | |
| 783 if (expected_type == NULL) expected_type = src_declared_type; | |
| 784 if (expected_type == NULL) expected_type = dst_declared_type; | |
| 2446 | 785 |
| 786 src_objarray = (src_exact_type && src_exact_type->is_obj_array_klass()) || (src_declared_type && src_declared_type->is_obj_array_klass()); | |
| 787 dst_objarray = (dst_exact_type && dst_exact_type->is_obj_array_klass()) || (dst_declared_type && dst_declared_type->is_obj_array_klass()); | |
| 0 | 788 } |
| 789 | |
| 790 // if a probable array type has been identified, figure out if any | |
| 791 // of the required checks for a fast case can be elided. | |
| 792 int flags = LIR_OpArrayCopy::all_flags; | |
| 2446 | 793 |
| 794 if (!src_objarray) | |
| 795 flags &= ~LIR_OpArrayCopy::src_objarray; | |
| 796 if (!dst_objarray) | |
| 797 flags &= ~LIR_OpArrayCopy::dst_objarray; | |
| 798 | |
| 799 if (!x->arg_needs_null_check(0)) | |
| 800 flags &= ~LIR_OpArrayCopy::src_null_check; | |
| 801 if (!x->arg_needs_null_check(2)) | |
| 802 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
| 803 | |
| 804 | |
| 0 | 805 if (expected_type != NULL) { |
| 2446 | 806 Value length_limit = NULL; |
| 807 | |
| 808 IfOp* ifop = length->as_IfOp(); | |
| 809 if (ifop != NULL) { | |
| 810 // look for expressions like min(v, a.length) which ends up as | |
| 811 // x > y ? y : x or x >= y ? y : x | |
| 812 if ((ifop->cond() == If::gtr || ifop->cond() == If::geq) && | |
| 813 ifop->x() == ifop->fval() && | |
| 814 ifop->y() == ifop->tval()) { | |
| 815 length_limit = ifop->y(); | |
| 816 } | |
| 817 } | |
| 818 | |
| 819 // try to skip null checks and range checks | |
| 820 NewArray* src_array = src->as_NewArray(); | |
| 821 if (src_array != NULL) { | |
| 0 | 822 flags &= ~LIR_OpArrayCopy::src_null_check; |
| 2446 | 823 if (length_limit != NULL && |
| 824 src_array->length() == length_limit && | |
| 825 is_constant_zero(src_pos)) { | |
| 826 flags &= ~LIR_OpArrayCopy::src_range_check; | |
| 827 } | |
| 828 } | |
| 829 | |
| 830 NewArray* dst_array = dst->as_NewArray(); | |
| 831 if (dst_array != NULL) { | |
| 0 | 832 flags &= ~LIR_OpArrayCopy::dst_null_check; |
| 2446 | 833 if (length_limit != NULL && |
| 834 dst_array->length() == length_limit && | |
| 835 is_constant_zero(dst_pos)) { | |
| 836 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
| 837 } | |
| 838 } | |
| 0 | 839 |
| 840 // check from incoming constant values | |
| 841 if (positive_constant(src_pos)) | |
| 842 flags &= ~LIR_OpArrayCopy::src_pos_positive_check; | |
| 843 if (positive_constant(dst_pos)) | |
| 844 flags &= ~LIR_OpArrayCopy::dst_pos_positive_check; | |
| 845 if (positive_constant(length)) | |
| 846 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
| 847 | |
| 848 // see if the range check can be elided, which might also imply | |
| 849 // that src or dst is non-null. | |
| 850 ArrayLength* al = length->as_ArrayLength(); | |
| 851 if (al != NULL) { | |
| 852 if (al->array() == src) { | |
| 853 // it's the length of the source array | |
| 854 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
| 855 flags &= ~LIR_OpArrayCopy::src_null_check; | |
| 856 if (is_constant_zero(src_pos)) | |
| 857 flags &= ~LIR_OpArrayCopy::src_range_check; | |
| 858 } | |
| 859 if (al->array() == dst) { | |
| 860 // it's the length of the destination array | |
| 861 flags &= ~LIR_OpArrayCopy::length_positive_check; | |
| 862 flags &= ~LIR_OpArrayCopy::dst_null_check; | |
| 863 if (is_constant_zero(dst_pos)) | |
| 864 flags &= ~LIR_OpArrayCopy::dst_range_check; | |
| 865 } | |
| 866 } | |
| 867 if (is_exact) { | |
| 868 flags &= ~LIR_OpArrayCopy::type_check; | |
| 869 } | |
| 870 } | |
| 871 | |
| 2446 | 872 IntConstant* src_int = src_pos->type()->as_IntConstant(); |
| 873 IntConstant* dst_int = dst_pos->type()->as_IntConstant(); | |
| 874 if (src_int && dst_int) { | |
| 875 int s_offs = src_int->value(); | |
| 876 int d_offs = dst_int->value(); | |
| 877 if (src_int->value() >= dst_int->value()) { | |
| 878 flags &= ~LIR_OpArrayCopy::overlapping; | |
| 879 } | |
| 880 if (expected_type != NULL) { | |
| 881 BasicType t = expected_type->element_type()->basic_type(); | |
| 882 int element_size = type2aelembytes(t); | |
| 883 if (((arrayOopDesc::base_offset_in_bytes(t) + s_offs * element_size) % HeapWordSize == 0) && | |
| 884 ((arrayOopDesc::base_offset_in_bytes(t) + d_offs * element_size) % HeapWordSize == 0)) { | |
| 885 flags &= ~LIR_OpArrayCopy::unaligned; | |
| 886 } | |
| 887 } | |
| 888 } else if (src_pos == dst_pos || is_constant_zero(dst_pos)) { | |
| 889 // src and dest positions are the same, or dst is zero so assume | |
| 890 // nonoverlapping copy. | |
| 891 flags &= ~LIR_OpArrayCopy::overlapping; | |
| 892 } | |
| 893 | |
| 0 | 894 if (src == dst) { |
| 895 // moving within a single array so no type checks are needed | |
| 896 if (flags & LIR_OpArrayCopy::type_check) { | |
| 897 flags &= ~LIR_OpArrayCopy::type_check; | |
| 898 } | |
| 899 } | |
| 900 *flagsp = flags; | |
| 901 *expected_typep = (ciArrayKlass*)expected_type; | |
| 902 } | |
| 903 | |
| 904 | |
| 905 LIR_Opr LIRGenerator::round_item(LIR_Opr opr) { | |
| 906 assert(opr->is_register(), "why spill if item is not register?"); | |
| 907 | |
| 908 if (RoundFPResults && UseSSE < 1 && opr->is_single_fpu()) { | |
| 909 LIR_Opr result = new_register(T_FLOAT); | |
| 910 set_vreg_flag(result, must_start_in_memory); | |
| 911 assert(opr->is_register(), "only a register can be spilled"); | |
| 912 assert(opr->value_type()->is_float(), "rounding only for floats available"); | |
| 913 __ roundfp(opr, LIR_OprFact::illegalOpr, result); | |
| 914 return result; | |
| 915 } | |
| 916 return opr; | |
| 917 } | |
| 918 | |
| 919 | |
| 920 LIR_Opr LIRGenerator::force_to_spill(LIR_Opr value, BasicType t) { | |
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921 assert(type2size[t] == type2size[value->type()], |
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922 err_msg_res("size mismatch: t=%s, value->type()=%s", type2name(t), type2name(value->type()))); |
| 0 | 923 if (!value->is_register()) { |
| 924 // force into a register | |
| 925 LIR_Opr r = new_register(value->type()); | |
| 926 __ move(value, r); | |
| 927 value = r; | |
| 928 } | |
| 929 | |
| 930 // create a spill location | |
| 931 LIR_Opr tmp = new_register(t); | |
| 932 set_vreg_flag(tmp, LIRGenerator::must_start_in_memory); | |
| 933 | |
| 934 // move from register to spill | |
| 935 __ move(value, tmp); | |
| 936 return tmp; | |
| 937 } | |
| 938 | |
| 939 void LIRGenerator::profile_branch(If* if_instr, If::Condition cond) { | |
| 940 if (if_instr->should_profile()) { | |
| 941 ciMethod* method = if_instr->profiled_method(); | |
| 942 assert(method != NULL, "method should be set if branch is profiled"); | |
|
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943 ciMethodData* md = method->method_data_or_null(); |
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944 assert(md != NULL, "Sanity"); |
| 0 | 945 ciProfileData* data = md->bci_to_data(if_instr->profiled_bci()); |
| 946 assert(data != NULL, "must have profiling data"); | |
| 947 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
| 948 int taken_count_offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
| 949 int not_taken_count_offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
| 1783 | 950 if (if_instr->is_swapped()) { |
| 951 int t = taken_count_offset; | |
| 952 taken_count_offset = not_taken_count_offset; | |
| 953 not_taken_count_offset = t; | |
| 954 } | |
| 955 | |
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956 LIR_Opr md_reg = new_register(T_METADATA); |
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957 __ metadata2reg(md->constant_encoding(), md_reg); |
| 1783 | 958 |
| 959 LIR_Opr data_offset_reg = new_pointer_register(); | |
| 0 | 960 __ cmove(lir_cond(cond), |
| 1783 | 961 LIR_OprFact::intptrConst(taken_count_offset), |
| 962 LIR_OprFact::intptrConst(not_taken_count_offset), | |
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963 data_offset_reg, as_BasicType(if_instr->x()->type())); |
| 1783 | 964 |
| 965 // MDO cells are intptr_t, so the data_reg width is arch-dependent. | |
| 966 LIR_Opr data_reg = new_pointer_register(); | |
| 967 LIR_Address* data_addr = new LIR_Address(md_reg, data_offset_reg, data_reg->type()); | |
| 2002 | 968 __ move(data_addr, data_reg); |
| 1783 | 969 // Use leal instead of add to avoid destroying condition codes on x86 |
| 0 | 970 LIR_Address* fake_incr_value = new LIR_Address(data_reg, DataLayout::counter_increment, T_INT); |
| 971 __ leal(LIR_OprFact::address(fake_incr_value), data_reg); | |
| 2002 | 972 __ move(data_reg, data_addr); |
| 0 | 973 } |
| 974 } | |
| 975 | |
| 976 // Phi technique: | |
| 977 // This is about passing live values from one basic block to the other. | |
| 978 // In code generated with Java it is rather rare that more than one | |
| 979 // value is on the stack from one basic block to the other. | |
| 980 // We optimize our technique for efficient passing of one value | |
| 981 // (of type long, int, double..) but it can be extended. | |
| 982 // When entering or leaving a basic block, all registers and all spill | |
| 983 // slots are release and empty. We use the released registers | |
| 984 // and spill slots to pass the live values from one block | |
| 985 // to the other. The topmost value, i.e., the value on TOS of expression | |
| 986 // stack is passed in registers. All other values are stored in spilling | |
| 987 // area. Every Phi has an index which designates its spill slot | |
| 988 // At exit of a basic block, we fill the register(s) and spill slots. | |
| 989 // At entry of a basic block, the block_prolog sets up the content of phi nodes | |
| 990 // and locks necessary registers and spilling slots. | |
| 991 | |
| 992 | |
| 993 // move current value to referenced phi function | |
| 994 void LIRGenerator::move_to_phi(PhiResolver* resolver, Value cur_val, Value sux_val) { | |
| 995 Phi* phi = sux_val->as_Phi(); | |
| 996 // cur_val can be null without phi being null in conjunction with inlining | |
| 997 if (phi != NULL && cur_val != NULL && cur_val != phi && !phi->is_illegal()) { | |
| 998 LIR_Opr operand = cur_val->operand(); | |
| 999 if (cur_val->operand()->is_illegal()) { | |
| 1000 assert(cur_val->as_Constant() != NULL || cur_val->as_Local() != NULL, | |
| 1001 "these can be produced lazily"); | |
| 1002 operand = operand_for_instruction(cur_val); | |
| 1003 } | |
| 1004 resolver->move(operand, operand_for_instruction(phi)); | |
| 1005 } | |
| 1006 } | |
| 1007 | |
| 1008 | |
| 1009 // Moves all stack values into their PHI position | |
| 1010 void LIRGenerator::move_to_phi(ValueStack* cur_state) { | |
| 1011 BlockBegin* bb = block(); | |
| 1012 if (bb->number_of_sux() == 1) { | |
| 1013 BlockBegin* sux = bb->sux_at(0); | |
| 1014 assert(sux->number_of_preds() > 0, "invalid CFG"); | |
| 1015 | |
| 1016 // a block with only one predecessor never has phi functions | |
| 1017 if (sux->number_of_preds() > 1) { | |
| 1018 int max_phis = cur_state->stack_size() + cur_state->locals_size(); | |
| 1019 PhiResolver resolver(this, _virtual_register_number + max_phis * 2); | |
| 1020 | |
| 1021 ValueStack* sux_state = sux->state(); | |
| 1022 Value sux_value; | |
| 1023 int index; | |
| 1024 | |
| 1819 | 1025 assert(cur_state->scope() == sux_state->scope(), "not matching"); |
| 1026 assert(cur_state->locals_size() == sux_state->locals_size(), "not matching"); | |
| 1027 assert(cur_state->stack_size() == sux_state->stack_size(), "not matching"); | |
| 1028 | |
| 0 | 1029 for_each_stack_value(sux_state, index, sux_value) { |
| 1030 move_to_phi(&resolver, cur_state->stack_at(index), sux_value); | |
| 1031 } | |
| 1032 | |
| 1033 for_each_local_value(sux_state, index, sux_value) { | |
| 1034 move_to_phi(&resolver, cur_state->local_at(index), sux_value); | |
| 1035 } | |
| 1036 | |
| 1037 assert(cur_state->caller_state() == sux_state->caller_state(), "caller states must be equal"); | |
| 1038 } | |
| 1039 } | |
| 1040 } | |
| 1041 | |
| 1042 | |
| 1043 LIR_Opr LIRGenerator::new_register(BasicType type) { | |
| 1044 int vreg = _virtual_register_number; | |
| 1045 // add a little fudge factor for the bailout, since the bailout is | |
| 1046 // only checked periodically. This gives a few extra registers to | |
| 1047 // hand out before we really run out, which helps us keep from | |
| 1048 // tripping over assertions. | |
| 1049 if (vreg + 20 >= LIR_OprDesc::vreg_max) { | |
| 1050 bailout("out of virtual registers"); | |
| 1051 if (vreg + 2 >= LIR_OprDesc::vreg_max) { | |
| 1052 // wrap it around | |
| 1053 _virtual_register_number = LIR_OprDesc::vreg_base; | |
| 1054 } | |
| 1055 } | |
| 1056 _virtual_register_number += 1; | |
| 1057 return LIR_OprFact::virtual_register(vreg, type); | |
| 1058 } | |
| 1059 | |
| 1060 | |
| 1061 // Try to lock using register in hint | |
| 1062 LIR_Opr LIRGenerator::rlock(Value instr) { | |
| 1063 return new_register(instr->type()); | |
| 1064 } | |
| 1065 | |
| 1066 | |
| 1067 // does an rlock and sets result | |
| 1068 LIR_Opr LIRGenerator::rlock_result(Value x) { | |
| 1069 LIR_Opr reg = rlock(x); | |
| 1070 set_result(x, reg); | |
| 1071 return reg; | |
| 1072 } | |
| 1073 | |
| 1074 | |
| 1075 // does an rlock and sets result | |
| 1076 LIR_Opr LIRGenerator::rlock_result(Value x, BasicType type) { | |
| 1077 LIR_Opr reg; | |
| 1078 switch (type) { | |
| 1079 case T_BYTE: | |
| 1080 case T_BOOLEAN: | |
| 1081 reg = rlock_byte(type); | |
| 1082 break; | |
| 1083 default: | |
| 1084 reg = rlock(x); | |
| 1085 break; | |
| 1086 } | |
| 1087 | |
| 1088 set_result(x, reg); | |
| 1089 return reg; | |
| 1090 } | |
| 1091 | |
| 1092 | |
| 1093 //--------------------------------------------------------------------- | |
| 1094 ciObject* LIRGenerator::get_jobject_constant(Value value) { | |
| 1095 ObjectType* oc = value->type()->as_ObjectType(); | |
| 1096 if (oc) { | |
| 1097 return oc->constant_value(); | |
| 1098 } | |
| 1099 return NULL; | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 void LIRGenerator::do_ExceptionObject(ExceptionObject* x) { | |
| 1104 assert(block()->is_set(BlockBegin::exception_entry_flag), "ExceptionObject only allowed in exception handler block"); | |
| 1105 assert(block()->next() == x, "ExceptionObject must be first instruction of block"); | |
| 1106 | |
| 1107 // no moves are created for phi functions at the begin of exception | |
| 1108 // handlers, so assign operands manually here | |
| 1109 for_each_phi_fun(block(), phi, | |
| 1110 operand_for_instruction(phi)); | |
| 1111 | |
| 1112 LIR_Opr thread_reg = getThreadPointer(); | |
| 2002 | 1113 __ move_wide(new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT), |
| 1114 exceptionOopOpr()); | |
| 1115 __ move_wide(LIR_OprFact::oopConst(NULL), | |
| 1116 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_oop_offset()), T_OBJECT)); | |
| 1117 __ move_wide(LIR_OprFact::oopConst(NULL), | |
| 1118 new LIR_Address(thread_reg, in_bytes(JavaThread::exception_pc_offset()), T_OBJECT)); | |
| 0 | 1119 |
| 1120 LIR_Opr result = new_register(T_OBJECT); | |
| 1121 __ move(exceptionOopOpr(), result); | |
| 1122 set_result(x, result); | |
| 1123 } | |
| 1124 | |
| 1125 | |
| 1126 //---------------------------------------------------------------------- | |
| 1127 //---------------------------------------------------------------------- | |
| 1128 //---------------------------------------------------------------------- | |
| 1129 //---------------------------------------------------------------------- | |
| 1130 // visitor functions | |
| 1131 //---------------------------------------------------------------------- | |
| 1132 //---------------------------------------------------------------------- | |
| 1133 //---------------------------------------------------------------------- | |
| 1134 //---------------------------------------------------------------------- | |
| 1135 | |
| 1136 void LIRGenerator::do_Phi(Phi* x) { | |
| 1137 // phi functions are never visited directly | |
| 1138 ShouldNotReachHere(); | |
| 1139 } | |
| 1140 | |
| 1141 | |
| 1142 // Code for a constant is generated lazily unless the constant is frequently used and can't be inlined. | |
| 1143 void LIRGenerator::do_Constant(Constant* x) { | |
| 1819 | 1144 if (x->state_before() != NULL) { |
| 0 | 1145 // Any constant with a ValueStack requires patching so emit the patch here |
| 1146 LIR_Opr reg = rlock_result(x); | |
| 1819 | 1147 CodeEmitInfo* info = state_for(x, x->state_before()); |
| 0 | 1148 __ oop2reg_patch(NULL, reg, info); |
| 1149 } else if (x->use_count() > 1 && !can_inline_as_constant(x)) { | |
| 1150 if (!x->is_pinned()) { | |
| 1151 // unpinned constants are handled specially so that they can be | |
| 1152 // put into registers when they are used multiple times within a | |
| 1153 // block. After the block completes their operand will be | |
| 1154 // cleared so that other blocks can't refer to that register. | |
| 1155 set_result(x, load_constant(x)); | |
| 1156 } else { | |
| 1157 LIR_Opr res = x->operand(); | |
| 1158 if (!res->is_valid()) { | |
| 1159 res = LIR_OprFact::value_type(x->type()); | |
| 1160 } | |
| 1161 if (res->is_constant()) { | |
| 1162 LIR_Opr reg = rlock_result(x); | |
| 1163 __ move(res, reg); | |
| 1164 } else { | |
| 1165 set_result(x, res); | |
| 1166 } | |
| 1167 } | |
| 1168 } else { | |
| 1169 set_result(x, LIR_OprFact::value_type(x->type())); | |
| 1170 } | |
| 1171 } | |
| 1172 | |
| 1173 | |
| 1174 void LIRGenerator::do_Local(Local* x) { | |
| 1175 // operand_for_instruction has the side effect of setting the result | |
| 1176 // so there's no need to do it here. | |
| 1177 operand_for_instruction(x); | |
| 1178 } | |
| 1179 | |
| 1180 | |
| 1181 void LIRGenerator::do_IfInstanceOf(IfInstanceOf* x) { | |
| 1182 Unimplemented(); | |
| 1183 } | |
| 1184 | |
| 1185 | |
| 1186 void LIRGenerator::do_Return(Return* x) { | |
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1187 if (compilation()->env()->dtrace_method_probes()) { |
| 0 | 1188 BasicTypeList signature; |
| 2002 | 1189 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
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1190 signature.append(T_METADATA); // Method* |
| 0 | 1191 LIR_OprList* args = new LIR_OprList(); |
| 1192 args->append(getThreadPointer()); | |
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1193 LIR_Opr meth = new_register(T_METADATA); |
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1194 __ metadata2reg(method()->constant_encoding(), meth); |
| 0 | 1195 args->append(meth); |
| 1196 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), voidType, NULL); | |
| 1197 } | |
| 1198 | |
| 1199 if (x->type()->is_void()) { | |
| 1200 __ return_op(LIR_OprFact::illegalOpr); | |
| 1201 } else { | |
| 1202 LIR_Opr reg = result_register_for(x->type(), /*callee=*/true); | |
| 1203 LIRItem result(x->result(), this); | |
| 1204 | |
| 1205 result.load_item_force(reg); | |
| 1206 __ return_op(result.result()); | |
| 1207 } | |
| 1208 set_no_result(x); | |
| 1209 } | |
| 1210 | |
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1211 // Examble: ref.get() |
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1212 // Combination of LoadField and g1 pre-write barrier |
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1213 void LIRGenerator::do_Reference_get(Intrinsic* x) { |
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1214 |
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1215 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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1216 guarantee(referent_offset > 0, "referent offset not initialized"); |
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1217 |
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1218 assert(x->number_of_arguments() == 1, "wrong type"); |
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1219 |
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1220 LIRItem reference(x->argument_at(0), this); |
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1221 reference.load_item(); |
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1222 |
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1223 // need to perform the null check on the reference objecy |
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1224 CodeEmitInfo* info = NULL; |
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1225 if (x->needs_null_check()) { |
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1226 info = state_for(x); |
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1227 } |
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1228 |
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1229 LIR_Address* referent_field_adr = |
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1230 new LIR_Address(reference.result(), referent_offset, T_OBJECT); |
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1231 |
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1232 LIR_Opr result = rlock_result(x); |
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1233 |
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1234 __ load(referent_field_adr, result, info); |
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1235 |
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1236 // Register the value in the referent field with the pre-barrier |
|
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1237 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
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1238 result /* pre_val */, |
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1239 false /* do_load */, |
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1240 false /* patch */, |
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1241 NULL /* info */); |
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1242 } |
| 0 | 1243 |
| 6135 | 1244 // Example: clazz.isInstance(object) |
| 1245 void LIRGenerator::do_isInstance(Intrinsic* x) { | |
| 1246 assert(x->number_of_arguments() == 2, "wrong type"); | |
| 1247 | |
| 1248 // TODO could try to substitute this node with an equivalent InstanceOf | |
| 1249 // if clazz is known to be a constant Class. This will pick up newly found | |
| 1250 // constants after HIR construction. I'll leave this to a future change. | |
| 1251 | |
| 1252 // as a first cut, make a simple leaf call to runtime to stay platform independent. | |
| 1253 // could follow the aastore example in a future change. | |
| 1254 | |
| 1255 LIRItem clazz(x->argument_at(0), this); | |
| 1256 LIRItem object(x->argument_at(1), this); | |
| 1257 clazz.load_item(); | |
| 1258 object.load_item(); | |
| 1259 LIR_Opr result = rlock_result(x); | |
| 1260 | |
| 1261 // need to perform null check on clazz | |
| 1262 if (x->needs_null_check()) { | |
| 1263 CodeEmitInfo* info = state_for(x); | |
| 1264 __ null_check(clazz.result(), info); | |
| 1265 } | |
| 1266 | |
| 1267 LIR_Opr call_result = call_runtime(clazz.value(), object.value(), | |
| 1268 CAST_FROM_FN_PTR(address, Runtime1::is_instance_of), | |
| 1269 x->type(), | |
| 1270 NULL); // NULL CodeEmitInfo results in a leaf call | |
| 1271 __ move(call_result, result); | |
| 1272 } | |
| 1273 | |
| 0 | 1274 // Example: object.getClass () |
| 1275 void LIRGenerator::do_getClass(Intrinsic* x) { | |
| 1276 assert(x->number_of_arguments() == 1, "wrong type"); | |
| 1277 | |
| 1278 LIRItem rcvr(x->argument_at(0), this); | |
| 1279 rcvr.load_item(); | |
| 12955 | 1280 LIR_Opr temp = new_register(T_METADATA); |
| 0 | 1281 LIR_Opr result = rlock_result(x); |
| 1282 | |
| 1283 // need to perform the null check on the rcvr | |
| 1284 CodeEmitInfo* info = NULL; | |
| 1285 if (x->needs_null_check()) { | |
| 1819 | 1286 info = state_for(x); |
| 0 | 1287 } |
| 12955 | 1288 |
| 1289 // FIXME T_ADDRESS should actually be T_METADATA but it can't because the | |
| 1290 // meaning of these two is mixed up (see JDK-8026837). | |
| 1291 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info); | |
| 1292 __ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result); | |
| 0 | 1293 } |
| 1294 | |
| 1295 | |
| 1296 // Example: Thread.currentThread() | |
| 1297 void LIRGenerator::do_currentThread(Intrinsic* x) { | |
| 1298 assert(x->number_of_arguments() == 0, "wrong type"); | |
| 1299 LIR_Opr reg = rlock_result(x); | |
| 2002 | 1300 __ move_wide(new LIR_Address(getThreadPointer(), in_bytes(JavaThread::threadObj_offset()), T_OBJECT), reg); |
| 0 | 1301 } |
| 1302 | |
| 1303 | |
| 1304 void LIRGenerator::do_RegisterFinalizer(Intrinsic* x) { | |
| 1305 assert(x->number_of_arguments() == 1, "wrong type"); | |
| 1306 LIRItem receiver(x->argument_at(0), this); | |
| 1307 | |
| 1308 receiver.load_item(); | |
| 1309 BasicTypeList signature; | |
| 1310 signature.append(T_OBJECT); // receiver | |
| 1311 LIR_OprList* args = new LIR_OprList(); | |
| 1312 args->append(receiver.result()); | |
| 1313 CodeEmitInfo* info = state_for(x, x->state()); | |
| 1314 call_runtime(&signature, args, | |
| 1315 CAST_FROM_FN_PTR(address, Runtime1::entry_for(Runtime1::register_finalizer_id)), | |
| 1316 voidType, info); | |
| 1317 | |
| 1318 set_no_result(x); | |
| 1319 } | |
| 1320 | |
| 1321 | |
| 1322 //------------------------local access-------------------------------------- | |
| 1323 | |
| 1324 LIR_Opr LIRGenerator::operand_for_instruction(Instruction* x) { | |
| 1325 if (x->operand()->is_illegal()) { | |
| 1326 Constant* c = x->as_Constant(); | |
| 1327 if (c != NULL) { | |
| 1328 x->set_operand(LIR_OprFact::value_type(c->type())); | |
| 1329 } else { | |
| 1330 assert(x->as_Phi() || x->as_Local() != NULL, "only for Phi and Local"); | |
| 1331 // allocate a virtual register for this local or phi | |
| 1332 x->set_operand(rlock(x)); | |
| 1333 _instruction_for_operand.at_put_grow(x->operand()->vreg_number(), x, NULL); | |
| 1334 } | |
| 1335 } | |
| 1336 return x->operand(); | |
| 1337 } | |
| 1338 | |
| 1339 | |
| 1340 Instruction* LIRGenerator::instruction_for_opr(LIR_Opr opr) { | |
| 1341 if (opr->is_virtual()) { | |
| 1342 return instruction_for_vreg(opr->vreg_number()); | |
| 1343 } | |
| 1344 return NULL; | |
| 1345 } | |
| 1346 | |
| 1347 | |
| 1348 Instruction* LIRGenerator::instruction_for_vreg(int reg_num) { | |
| 1349 if (reg_num < _instruction_for_operand.length()) { | |
| 1350 return _instruction_for_operand.at(reg_num); | |
| 1351 } | |
| 1352 return NULL; | |
| 1353 } | |
| 1354 | |
| 1355 | |
| 1356 void LIRGenerator::set_vreg_flag(int vreg_num, VregFlag f) { | |
| 1357 if (_vreg_flags.size_in_bits() == 0) { | |
| 1358 BitMap2D temp(100, num_vreg_flags); | |
| 1359 temp.clear(); | |
| 1360 _vreg_flags = temp; | |
| 1361 } | |
| 1362 _vreg_flags.at_put_grow(vreg_num, f, true); | |
| 1363 } | |
| 1364 | |
| 1365 bool LIRGenerator::is_vreg_flag_set(int vreg_num, VregFlag f) { | |
| 1366 if (!_vreg_flags.is_valid_index(vreg_num, f)) { | |
| 1367 return false; | |
| 1368 } | |
| 1369 return _vreg_flags.at(vreg_num, f); | |
| 1370 } | |
| 1371 | |
| 1372 | |
| 1373 // Block local constant handling. This code is useful for keeping | |
| 1374 // unpinned constants and constants which aren't exposed in the IR in | |
| 1375 // registers. Unpinned Constant instructions have their operands | |
| 1376 // cleared when the block is finished so that other blocks can't end | |
| 1377 // up referring to their registers. | |
| 1378 | |
| 1379 LIR_Opr LIRGenerator::load_constant(Constant* x) { | |
| 1380 assert(!x->is_pinned(), "only for unpinned constants"); | |
| 1381 _unpinned_constants.append(x); | |
| 1382 return load_constant(LIR_OprFact::value_type(x->type())->as_constant_ptr()); | |
| 1383 } | |
| 1384 | |
| 1385 | |
| 1386 LIR_Opr LIRGenerator::load_constant(LIR_Const* c) { | |
| 1387 BasicType t = c->type(); | |
| 1388 for (int i = 0; i < _constants.length(); i++) { | |
| 1389 LIR_Const* other = _constants.at(i); | |
| 1390 if (t == other->type()) { | |
| 1391 switch (t) { | |
| 1392 case T_INT: | |
| 1393 case T_FLOAT: | |
| 1394 if (c->as_jint_bits() != other->as_jint_bits()) continue; | |
| 1395 break; | |
| 1396 case T_LONG: | |
| 1397 case T_DOUBLE: | |
|
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1398 if (c->as_jint_hi_bits() != other->as_jint_hi_bits()) continue; |
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1399 if (c->as_jint_lo_bits() != other->as_jint_lo_bits()) continue; |
| 0 | 1400 break; |
| 1401 case T_OBJECT: | |
| 1402 if (c->as_jobject() != other->as_jobject()) continue; | |
| 1403 break; | |
| 1404 } | |
| 1405 return _reg_for_constants.at(i); | |
| 1406 } | |
| 1407 } | |
| 1408 | |
| 1409 LIR_Opr result = new_register(t); | |
| 1410 __ move((LIR_Opr)c, result); | |
| 1411 _constants.append(c); | |
| 1412 _reg_for_constants.append(result); | |
| 1413 return result; | |
| 1414 } | |
| 1415 | |
| 1416 // Various barriers | |
| 1417 | |
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1418 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1419 bool do_load, bool patch, CodeEmitInfo* info) { |
| 342 | 1420 // Do the pre-write barrier, if any. |
| 1421 switch (_bs->kind()) { | |
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1422 #if INCLUDE_ALL_GCS |
| 342 | 1423 case BarrierSet::G1SATBCT: |
| 1424 case BarrierSet::G1SATBCTLogging: | |
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1425 G1SATBCardTableModRef_pre_barrier(addr_opr, pre_val, do_load, patch, info); |
| 342 | 1426 break; |
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1427 #endif // INCLUDE_ALL_GCS |
| 342 | 1428 case BarrierSet::CardTableModRef: |
| 1429 case BarrierSet::CardTableExtension: | |
| 1430 // No pre barriers | |
| 1431 break; | |
| 1432 case BarrierSet::ModRef: | |
| 1433 case BarrierSet::Other: | |
| 1434 // No pre barriers | |
| 1435 break; | |
| 1436 default : | |
| 1437 ShouldNotReachHere(); | |
| 1438 | |
| 1439 } | |
| 1440 } | |
| 1441 | |
| 0 | 1442 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
| 342 | 1443 switch (_bs->kind()) { |
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1444 #if INCLUDE_ALL_GCS |
| 342 | 1445 case BarrierSet::G1SATBCT: |
| 1446 case BarrierSet::G1SATBCTLogging: | |
| 1447 G1SATBCardTableModRef_post_barrier(addr, new_val); | |
| 1448 break; | |
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1449 #endif // INCLUDE_ALL_GCS |
| 0 | 1450 case BarrierSet::CardTableModRef: |
| 1451 case BarrierSet::CardTableExtension: | |
| 1452 CardTableModRef_post_barrier(addr, new_val); | |
| 1453 break; | |
| 1454 case BarrierSet::ModRef: | |
| 1455 case BarrierSet::Other: | |
| 1456 // No post barriers | |
| 1457 break; | |
| 1458 default : | |
| 1459 ShouldNotReachHere(); | |
| 1460 } | |
| 1461 } | |
| 1462 | |
| 342 | 1463 //////////////////////////////////////////////////////////////////////// |
|
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1464 #if INCLUDE_ALL_GCS |
| 342 | 1465 |
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1466 void LIRGenerator::G1SATBCardTableModRef_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val, |
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1467 bool do_load, bool patch, CodeEmitInfo* info) { |
| 342 | 1468 // First we test whether marking is in progress. |
| 1469 BasicType flag_type; | |
| 1470 if (in_bytes(PtrQueue::byte_width_of_active()) == 4) { | |
| 1471 flag_type = T_INT; | |
| 1472 } else { | |
| 1473 guarantee(in_bytes(PtrQueue::byte_width_of_active()) == 1, | |
| 1474 "Assumption"); | |
| 1475 flag_type = T_BYTE; | |
| 1476 } | |
| 1477 LIR_Opr thrd = getThreadPointer(); | |
| 1478 LIR_Address* mark_active_flag_addr = | |
| 1479 new LIR_Address(thrd, | |
| 1480 in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1481 PtrQueue::byte_offset_of_active()), | |
| 1482 flag_type); | |
| 1483 // Read the marking-in-progress flag. | |
| 1484 LIR_Opr flag_val = new_register(T_INT); | |
| 1485 __ load(mark_active_flag_addr, flag_val); | |
| 1486 __ cmp(lir_cond_notEqual, flag_val, LIR_OprFact::intConst(0)); | |
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1487 |
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1488 LIR_PatchCode pre_val_patch_code = lir_patch_none; |
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1489 |
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1490 CodeStub* slow; |
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1491 |
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1492 if (do_load) { |
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1493 assert(pre_val == LIR_OprFact::illegalOpr, "sanity"); |
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1494 assert(addr_opr != LIR_OprFact::illegalOpr, "sanity"); |
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1495 |
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1496 if (patch) |
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1497 pre_val_patch_code = lir_patch_normal; |
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1498 |
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1499 pre_val = new_register(T_OBJECT); |
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1500 |
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1501 if (!addr_opr->is_address()) { |
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1502 assert(addr_opr->is_register(), "must be"); |
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1503 addr_opr = LIR_OprFact::address(new LIR_Address(addr_opr, T_OBJECT)); |
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1504 } |
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1505 slow = new G1PreBarrierStub(addr_opr, pre_val, pre_val_patch_code, info); |
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1506 } else { |
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1507 assert(addr_opr == LIR_OprFact::illegalOpr, "sanity"); |
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1508 assert(pre_val->is_register(), "must be"); |
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1509 assert(pre_val->type() == T_OBJECT, "must be an object"); |
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1510 assert(info == NULL, "sanity"); |
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1511 |
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1512 slow = new G1PreBarrierStub(pre_val); |
| 342 | 1513 } |
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1514 |
| 342 | 1515 __ branch(lir_cond_notEqual, T_INT, slow); |
| 1516 __ branch_destination(slow->continuation()); | |
| 1517 } | |
| 1518 | |
| 1519 void LIRGenerator::G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { | |
| 1520 // If the "new_val" is a constant NULL, no barrier is necessary. | |
| 1521 if (new_val->is_constant() && | |
| 1522 new_val->as_constant_ptr()->as_jobject() == NULL) return; | |
| 1523 | |
| 1524 if (!new_val->is_register()) { | |
| 1572 | 1525 LIR_Opr new_val_reg = new_register(T_OBJECT); |
| 342 | 1526 if (new_val->is_constant()) { |
| 1527 __ move(new_val, new_val_reg); | |
| 1528 } else { | |
| 1529 __ leal(new_val, new_val_reg); | |
| 1530 } | |
| 1531 new_val = new_val_reg; | |
| 1532 } | |
| 1533 assert(new_val->is_register(), "must be a register at this point"); | |
| 1534 | |
| 1535 if (addr->is_address()) { | |
| 1536 LIR_Address* address = addr->as_address_ptr(); | |
|
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1537 LIR_Opr ptr = new_pointer_register(); |
| 342 | 1538 if (!address->index()->is_valid() && address->disp() == 0) { |
| 1539 __ move(address->base(), ptr); | |
| 1540 } else { | |
| 1541 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
| 1542 __ leal(addr, ptr); | |
| 1543 } | |
| 1544 addr = ptr; | |
| 1545 } | |
| 1546 assert(addr->is_register(), "must be a register at this point"); | |
| 1547 | |
| 1548 LIR_Opr xor_res = new_pointer_register(); | |
| 1549 LIR_Opr xor_shift_res = new_pointer_register(); | |
| 1550 if (TwoOperandLIRForm ) { | |
| 1551 __ move(addr, xor_res); | |
| 1552 __ logical_xor(xor_res, new_val, xor_res); | |
| 1553 __ move(xor_res, xor_shift_res); | |
| 1554 __ unsigned_shift_right(xor_shift_res, | |
| 1555 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
| 1556 xor_shift_res, | |
| 1557 LIR_OprDesc::illegalOpr()); | |
| 1558 } else { | |
| 1559 __ logical_xor(addr, new_val, xor_res); | |
| 1560 __ unsigned_shift_right(xor_res, | |
| 1561 LIR_OprFact::intConst(HeapRegion::LogOfHRGrainBytes), | |
| 1562 xor_shift_res, | |
| 1563 LIR_OprDesc::illegalOpr()); | |
| 1564 } | |
| 1565 | |
| 1566 if (!new_val->is_register()) { | |
| 1572 | 1567 LIR_Opr new_val_reg = new_register(T_OBJECT); |
| 342 | 1568 __ leal(new_val, new_val_reg); |
| 1569 new_val = new_val_reg; | |
| 1570 } | |
| 1571 assert(new_val->is_register(), "must be a register at this point"); | |
| 1572 | |
| 1573 __ cmp(lir_cond_notEqual, xor_shift_res, LIR_OprFact::intptrConst(NULL_WORD)); | |
| 1574 | |
| 1575 CodeStub* slow = new G1PostBarrierStub(addr, new_val); | |
| 1572 | 1576 __ branch(lir_cond_notEqual, LP64_ONLY(T_LONG) NOT_LP64(T_INT), slow); |
| 342 | 1577 __ branch_destination(slow->continuation()); |
| 1578 } | |
| 1579 | |
|
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1580 #endif // INCLUDE_ALL_GCS |
| 342 | 1581 //////////////////////////////////////////////////////////////////////// |
| 1582 | |
| 0 | 1583 void LIRGenerator::CardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) { |
| 1584 | |
| 342 | 1585 assert(sizeof(*((CardTableModRefBS*)_bs)->byte_map_base) == sizeof(jbyte), "adjust this code"); |
| 1586 LIR_Const* card_table_base = new LIR_Const(((CardTableModRefBS*)_bs)->byte_map_base); | |
| 0 | 1587 if (addr->is_address()) { |
| 1588 LIR_Address* address = addr->as_address_ptr(); | |
|
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1589 // ptr cannot be an object because we use this barrier for array card marks |
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1590 // and addr can point in the middle of an array. |
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1591 LIR_Opr ptr = new_pointer_register(); |
| 0 | 1592 if (!address->index()->is_valid() && address->disp() == 0) { |
| 1593 __ move(address->base(), ptr); | |
| 1594 } else { | |
| 1595 assert(address->disp() != max_jint, "lea doesn't support patched addresses!"); | |
| 1596 __ leal(addr, ptr); | |
| 1597 } | |
| 1598 addr = ptr; | |
| 1599 } | |
| 1600 assert(addr->is_register(), "must be a register at this point"); | |
| 1601 | |
|
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1602 #ifdef ARM |
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1603 // TODO: ARM - move to platform-dependent code |
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1604 LIR_Opr tmp = FrameMap::R14_opr; |
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1605 if (VM_Version::supports_movw()) { |
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1606 __ move((LIR_Opr)card_table_base, tmp); |
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1607 } else { |
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1608 __ move(new LIR_Address(FrameMap::Rthread_opr, in_bytes(JavaThread::card_table_base_offset()), T_ADDRESS), tmp); |
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1609 } |
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1610 |
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1611 CardTableModRefBS* ct = (CardTableModRefBS*)_bs; |
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1612 LIR_Address *card_addr = new LIR_Address(tmp, addr, (LIR_Address::Scale) -CardTableModRefBS::card_shift, 0, T_BYTE); |
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1613 if(((int)ct->byte_map_base & 0xff) == 0) { |
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1614 __ move(tmp, card_addr); |
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1615 } else { |
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1616 LIR_Opr tmp_zero = new_register(T_INT); |
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1617 __ move(LIR_OprFact::intConst(0), tmp_zero); |
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1618 __ move(tmp_zero, card_addr); |
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1619 } |
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1620 #else // ARM |
| 0 | 1621 LIR_Opr tmp = new_pointer_register(); |
| 1622 if (TwoOperandLIRForm) { | |
| 1623 __ move(addr, tmp); | |
| 1624 __ unsigned_shift_right(tmp, CardTableModRefBS::card_shift, tmp); | |
| 1625 } else { | |
| 1626 __ unsigned_shift_right(addr, CardTableModRefBS::card_shift, tmp); | |
| 1627 } | |
| 1628 if (can_inline_as_constant(card_table_base)) { | |
| 1629 __ move(LIR_OprFact::intConst(0), | |
| 1630 new LIR_Address(tmp, card_table_base->as_jint(), T_BYTE)); | |
| 1631 } else { | |
| 1632 __ move(LIR_OprFact::intConst(0), | |
| 1633 new LIR_Address(tmp, load_constant(card_table_base), | |
| 1634 T_BYTE)); | |
| 1635 } | |
|
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1636 #endif // ARM |
| 0 | 1637 } |
| 1638 | |
| 1639 | |
| 1640 //------------------------field access-------------------------------------- | |
| 1641 | |
| 1642 // Comment copied form templateTable_i486.cpp | |
| 1643 // ---------------------------------------------------------------------------- | |
| 1644 // Volatile variables demand their effects be made known to all CPU's in | |
| 1645 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 1646 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 1647 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 1648 // reorder volatile references, the hardware also must not reorder them). | |
| 1649 // | |
| 1650 // According to the new Java Memory Model (JMM): | |
| 1651 // (1) All volatiles are serialized wrt to each other. | |
| 1652 // ALSO reads & writes act as aquire & release, so: | |
| 1653 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 1654 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 1655 // that happen before the volatile read to float down below it. | |
| 1656 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 1657 // that happen BEFORE the write float down to after the write. It's OK for | |
| 1658 // non-volatile memory refs that happen after the volatile write to float up | |
| 1659 // before it. | |
| 1660 // | |
| 1661 // We only put in barriers around volatile refs (they are expensive), not | |
| 1662 // _between_ memory refs (that would require us to track the flavor of the | |
| 1663 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 1664 // before volatile stores and after volatile loads. These nearly cover | |
| 1665 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 1666 // case is placed after volatile-stores although it could just as well go | |
| 1667 // before volatile-loads. | |
| 1668 | |
| 1669 | |
| 1670 void LIRGenerator::do_StoreField(StoreField* x) { | |
| 1671 bool needs_patching = x->needs_patching(); | |
| 1672 bool is_volatile = x->field()->is_volatile(); | |
| 1673 BasicType field_type = x->field_type(); | |
| 1674 bool is_oop = (field_type == T_ARRAY || field_type == T_OBJECT); | |
| 1675 | |
| 1676 CodeEmitInfo* info = NULL; | |
| 1677 if (needs_patching) { | |
| 1678 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
| 1679 info = state_for(x, x->state_before()); | |
| 1680 } else if (x->needs_null_check()) { | |
| 1681 NullCheck* nc = x->explicit_null_check(); | |
| 1682 if (nc == NULL) { | |
| 1819 | 1683 info = state_for(x); |
| 0 | 1684 } else { |
| 1685 info = state_for(nc); | |
| 1686 } | |
| 1687 } | |
| 1688 | |
| 1689 | |
| 1690 LIRItem object(x->obj(), this); | |
| 1691 LIRItem value(x->value(), this); | |
| 1692 | |
| 1693 object.load_item(); | |
| 1694 | |
| 1695 if (is_volatile || needs_patching) { | |
| 1696 // load item if field is volatile (fewer special cases for volatiles) | |
| 1697 // load item if field not initialized | |
| 1698 // load item if field not constant | |
| 1699 // because of code patching we cannot inline constants | |
| 1700 if (field_type == T_BYTE || field_type == T_BOOLEAN) { | |
| 1701 value.load_byte_item(); | |
| 1702 } else { | |
| 1703 value.load_item(); | |
| 1704 } | |
| 1705 } else { | |
| 1706 value.load_for_store(field_type); | |
| 1707 } | |
| 1708 | |
| 1709 set_no_result(x); | |
| 1710 | |
| 1819 | 1711 #ifndef PRODUCT |
| 0 | 1712 if (PrintNotLoaded && needs_patching) { |
| 1713 tty->print_cr(" ###class not loaded at store_%s bci %d", | |
| 1819 | 1714 x->is_static() ? "static" : "field", x->printable_bci()); |
| 0 | 1715 } |
| 1819 | 1716 #endif |
| 0 | 1717 |
| 1718 if (x->needs_null_check() && | |
| 1719 (needs_patching || | |
| 1720 MacroAssembler::needs_explicit_null_check(x->offset()))) { | |
| 1721 // emit an explicit null check because the offset is too large | |
| 1722 __ null_check(object.result(), new CodeEmitInfo(info)); | |
| 1723 } | |
| 1724 | |
| 1725 LIR_Address* address; | |
| 1726 if (needs_patching) { | |
| 1727 // we need to patch the offset in the instruction so don't allow | |
| 1728 // generate_address to try to be smart about emitting the -1. | |
| 1729 // Otherwise the patching code won't know how to find the | |
| 1730 // instruction to patch. | |
|
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1731 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
| 0 | 1732 } else { |
| 1733 address = generate_address(object.result(), x->offset(), field_type); | |
| 1734 } | |
| 1735 | |
| 1736 if (is_volatile && os::is_MP()) { | |
| 1737 __ membar_release(); | |
| 1738 } | |
| 1739 | |
| 342 | 1740 if (is_oop) { |
| 1741 // Do the pre-write barrier, if any. | |
| 1742 pre_barrier(LIR_OprFact::address(address), | |
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1743 LIR_OprFact::illegalOpr /* pre_val */, |
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1744 true /* do_load*/, |
| 342 | 1745 needs_patching, |
| 1746 (info ? new CodeEmitInfo(info) : NULL)); | |
| 1747 } | |
| 1748 | |
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1749 if (is_volatile && !needs_patching) { |
| 0 | 1750 volatile_field_store(value.result(), address, info); |
| 1751 } else { | |
| 1752 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
| 1753 __ store(value.result(), address, info, patch_code); | |
| 1754 } | |
| 1755 | |
| 1756 if (is_oop) { | |
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1757 // Store to object so mark the card of the header |
| 0 | 1758 post_barrier(object.result(), value.result()); |
| 1759 } | |
| 1760 | |
| 1761 if (is_volatile && os::is_MP()) { | |
| 1762 __ membar(); | |
| 1763 } | |
| 1764 } | |
| 1765 | |
| 1766 | |
| 1767 void LIRGenerator::do_LoadField(LoadField* x) { | |
| 1768 bool needs_patching = x->needs_patching(); | |
| 1769 bool is_volatile = x->field()->is_volatile(); | |
| 1770 BasicType field_type = x->field_type(); | |
| 1771 | |
| 1772 CodeEmitInfo* info = NULL; | |
| 1773 if (needs_patching) { | |
| 1774 assert(x->explicit_null_check() == NULL, "can't fold null check into patching field access"); | |
| 1775 info = state_for(x, x->state_before()); | |
| 1776 } else if (x->needs_null_check()) { | |
| 1777 NullCheck* nc = x->explicit_null_check(); | |
| 1778 if (nc == NULL) { | |
| 1819 | 1779 info = state_for(x); |
| 0 | 1780 } else { |
| 1781 info = state_for(nc); | |
| 1782 } | |
| 1783 } | |
| 1784 | |
| 1785 LIRItem object(x->obj(), this); | |
| 1786 | |
| 1787 object.load_item(); | |
| 1788 | |
| 1819 | 1789 #ifndef PRODUCT |
| 0 | 1790 if (PrintNotLoaded && needs_patching) { |
| 1791 tty->print_cr(" ###class not loaded at load_%s bci %d", | |
| 1819 | 1792 x->is_static() ? "static" : "field", x->printable_bci()); |
| 0 | 1793 } |
| 1819 | 1794 #endif |
| 0 | 1795 |
| 8860 | 1796 bool stress_deopt = StressLoopInvariantCodeMotion && info && info->deoptimize_on_exception(); |
| 0 | 1797 if (x->needs_null_check() && |
| 1798 (needs_patching || | |
| 8860 | 1799 MacroAssembler::needs_explicit_null_check(x->offset()) || |
| 1800 stress_deopt)) { | |
| 1801 LIR_Opr obj = object.result(); | |
| 1802 if (stress_deopt) { | |
| 1803 obj = new_register(T_OBJECT); | |
| 1804 __ move(LIR_OprFact::oopConst(NULL), obj); | |
| 1805 } | |
| 0 | 1806 // emit an explicit null check because the offset is too large |
| 8860 | 1807 __ null_check(obj, new CodeEmitInfo(info)); |
| 0 | 1808 } |
| 1809 | |
| 1810 LIR_Opr reg = rlock_result(x, field_type); | |
| 1811 LIR_Address* address; | |
| 1812 if (needs_patching) { | |
| 1813 // we need to patch the offset in the instruction so don't allow | |
| 1814 // generate_address to try to be smart about emitting the -1. | |
| 1815 // Otherwise the patching code won't know how to find the | |
| 1816 // instruction to patch. | |
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1817 address = new LIR_Address(object.result(), PATCHED_ADDR, field_type); |
| 0 | 1818 } else { |
| 1819 address = generate_address(object.result(), x->offset(), field_type); | |
| 1820 } | |
| 1821 | |
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1822 if (is_volatile && !needs_patching) { |
| 0 | 1823 volatile_field_load(address, reg, info); |
| 1824 } else { | |
| 1825 LIR_PatchCode patch_code = needs_patching ? lir_patch_normal : lir_patch_none; | |
| 1826 __ load(address, reg, info, patch_code); | |
| 1827 } | |
| 1828 | |
| 1829 if (is_volatile && os::is_MP()) { | |
| 1830 __ membar_acquire(); | |
| 1831 } | |
| 1832 } | |
| 1833 | |
| 1834 | |
| 1835 //------------------------java.nio.Buffer.checkIndex------------------------ | |
| 1836 | |
| 1837 // int java.nio.Buffer.checkIndex(int) | |
| 1838 void LIRGenerator::do_NIOCheckIndex(Intrinsic* x) { | |
| 1839 // NOTE: by the time we are in checkIndex() we are guaranteed that | |
| 1840 // the buffer is non-null (because checkIndex is package-private and | |
| 1841 // only called from within other methods in the buffer). | |
| 1842 assert(x->number_of_arguments() == 2, "wrong type"); | |
| 1843 LIRItem buf (x->argument_at(0), this); | |
| 1844 LIRItem index(x->argument_at(1), this); | |
| 1845 buf.load_item(); | |
| 1846 index.load_item(); | |
| 1847 | |
| 1848 LIR_Opr result = rlock_result(x); | |
| 1849 if (GenerateRangeChecks) { | |
| 1850 CodeEmitInfo* info = state_for(x); | |
| 1851 CodeStub* stub = new RangeCheckStub(info, index.result(), true); | |
| 1852 if (index.result()->is_constant()) { | |
| 1853 cmp_mem_int(lir_cond_belowEqual, buf.result(), java_nio_Buffer::limit_offset(), index.result()->as_jint(), info); | |
| 1854 __ branch(lir_cond_belowEqual, T_INT, stub); | |
| 1855 } else { | |
| 1856 cmp_reg_mem(lir_cond_aboveEqual, index.result(), buf.result(), | |
| 1857 java_nio_Buffer::limit_offset(), T_INT, info); | |
| 1858 __ branch(lir_cond_aboveEqual, T_INT, stub); | |
| 1859 } | |
| 1860 __ move(index.result(), result); | |
| 1861 } else { | |
| 1862 // Just load the index into the result register | |
| 1863 __ move(index.result(), result); | |
| 1864 } | |
| 1865 } | |
| 1866 | |
| 1867 | |
| 1868 //------------------------array access-------------------------------------- | |
| 1869 | |
| 1870 | |
| 1871 void LIRGenerator::do_ArrayLength(ArrayLength* x) { | |
| 1872 LIRItem array(x->array(), this); | |
| 1873 array.load_item(); | |
| 1874 LIR_Opr reg = rlock_result(x); | |
| 1875 | |
| 1876 CodeEmitInfo* info = NULL; | |
| 1877 if (x->needs_null_check()) { | |
| 1878 NullCheck* nc = x->explicit_null_check(); | |
| 1879 if (nc == NULL) { | |
| 1880 info = state_for(x); | |
| 1881 } else { | |
| 1882 info = state_for(nc); | |
| 1883 } | |
| 8860 | 1884 if (StressLoopInvariantCodeMotion && info->deoptimize_on_exception()) { |
| 1885 LIR_Opr obj = new_register(T_OBJECT); | |
| 1886 __ move(LIR_OprFact::oopConst(NULL), obj); | |
| 1887 __ null_check(obj, new CodeEmitInfo(info)); | |
| 1888 } | |
| 0 | 1889 } |
| 1890 __ load(new LIR_Address(array.result(), arrayOopDesc::length_offset_in_bytes(), T_INT), reg, info, lir_patch_none); | |
| 1891 } | |
| 1892 | |
| 1893 | |
| 1894 void LIRGenerator::do_LoadIndexed(LoadIndexed* x) { | |
| 1895 bool use_length = x->length() != NULL; | |
| 1896 LIRItem array(x->array(), this); | |
| 1897 LIRItem index(x->index(), this); | |
| 1898 LIRItem length(this); | |
| 8860 | 1899 bool needs_range_check = x->compute_needs_range_check(); |
| 1900 | |
| 1901 if (use_length && needs_range_check) { | |
| 1902 length.set_instruction(x->length()); | |
| 1903 length.load_item(); | |
| 0 | 1904 } |
| 1905 | |
| 1906 array.load_item(); | |
| 1907 if (index.is_constant() && can_inline_as_constant(x->index())) { | |
| 1908 // let it be a constant | |
| 1909 index.dont_load_item(); | |
| 1910 } else { | |
| 1911 index.load_item(); | |
| 1912 } | |
| 1913 | |
| 1914 CodeEmitInfo* range_check_info = state_for(x); | |
| 1915 CodeEmitInfo* null_check_info = NULL; | |
| 1916 if (x->needs_null_check()) { | |
| 1917 NullCheck* nc = x->explicit_null_check(); | |
| 1918 if (nc != NULL) { | |
| 1919 null_check_info = state_for(nc); | |
| 1920 } else { | |
| 1921 null_check_info = range_check_info; | |
| 1922 } | |
| 8860 | 1923 if (StressLoopInvariantCodeMotion && null_check_info->deoptimize_on_exception()) { |
| 1924 LIR_Opr obj = new_register(T_OBJECT); | |
| 1925 __ move(LIR_OprFact::oopConst(NULL), obj); | |
| 1926 __ null_check(obj, new CodeEmitInfo(null_check_info)); | |
| 1927 } | |
| 0 | 1928 } |
| 1929 | |
| 1930 // emit array address setup early so it schedules better | |
| 1931 LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), false); | |
| 1932 | |
| 1933 if (GenerateRangeChecks && needs_range_check) { | |
| 8860 | 1934 if (StressLoopInvariantCodeMotion && range_check_info->deoptimize_on_exception()) { |
| 1935 __ branch(lir_cond_always, T_ILLEGAL, new RangeCheckStub(range_check_info, index.result())); | |
| 1936 } else if (use_length) { | |
| 0 | 1937 // TODO: use a (modified) version of array_range_check that does not require a |
| 1938 // constant length to be loaded to a register | |
| 1939 __ cmp(lir_cond_belowEqual, length.result(), index.result()); | |
| 1940 __ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result())); | |
| 1941 } else { | |
| 1942 array_range_check(array.result(), index.result(), null_check_info, range_check_info); | |
| 1943 // The range check performs the null check, so clear it out for the load | |
| 1944 null_check_info = NULL; | |
| 1945 } | |
| 1946 } | |
| 1947 | |
| 1948 __ move(array_addr, rlock_result(x, x->elt_type()), null_check_info); | |
| 1949 } | |
| 1950 | |
| 1951 | |
| 1952 void LIRGenerator::do_NullCheck(NullCheck* x) { | |
| 1953 if (x->can_trap()) { | |
| 1954 LIRItem value(x->obj(), this); | |
| 1955 value.load_item(); | |
| 1956 CodeEmitInfo* info = state_for(x); | |
| 1957 __ null_check(value.result(), info); | |
| 1958 } | |
| 1959 } | |
| 1960 | |
| 1961 | |
|
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1962 void LIRGenerator::do_TypeCast(TypeCast* x) { |
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1963 LIRItem value(x->obj(), this); |
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1964 value.load_item(); |
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1965 // the result is the same as from the node we are casting |
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1966 set_result(x, value.result()); |
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1967 } |
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1968 |
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1969 |
| 0 | 1970 void LIRGenerator::do_Throw(Throw* x) { |
| 1971 LIRItem exception(x->exception(), this); | |
| 1972 exception.load_item(); | |
| 1973 set_no_result(x); | |
| 1974 LIR_Opr exception_opr = exception.result(); | |
| 1975 CodeEmitInfo* info = state_for(x, x->state()); | |
| 1976 | |
| 1977 #ifndef PRODUCT | |
| 1978 if (PrintC1Statistics) { | |
| 1783 | 1979 increment_counter(Runtime1::throw_count_address(), T_INT); |
| 0 | 1980 } |
| 1981 #endif | |
| 1982 | |
| 1983 // check if the instruction has an xhandler in any of the nested scopes | |
| 1984 bool unwind = false; | |
| 1985 if (info->exception_handlers()->length() == 0) { | |
| 1986 // this throw is not inside an xhandler | |
| 1987 unwind = true; | |
| 1988 } else { | |
| 1989 // get some idea of the throw type | |
| 1990 bool type_is_exact = true; | |
| 1991 ciType* throw_type = x->exception()->exact_type(); | |
| 1992 if (throw_type == NULL) { | |
| 1993 type_is_exact = false; | |
| 1994 throw_type = x->exception()->declared_type(); | |
| 1995 } | |
| 1996 if (throw_type != NULL && throw_type->is_instance_klass()) { | |
| 1997 ciInstanceKlass* throw_klass = (ciInstanceKlass*)throw_type; | |
| 1998 unwind = !x->exception_handlers()->could_catch(throw_klass, type_is_exact); | |
| 1999 } | |
| 2000 } | |
| 2001 | |
| 2002 // do null check before moving exception oop into fixed register | |
| 2003 // to avoid a fixed interval with an oop during the null check. | |
| 2004 // Use a copy of the CodeEmitInfo because debug information is | |
| 2005 // different for null_check and throw. | |
| 2006 if (GenerateCompilerNullChecks && | |
| 2007 (x->exception()->as_NewInstance() == NULL && x->exception()->as_ExceptionObject() == NULL)) { | |
| 2008 // if the exception object wasn't created using new then it might be null. | |
| 1819 | 2009 __ null_check(exception_opr, new CodeEmitInfo(info, x->state()->copy(ValueStack::ExceptionState, x->state()->bci()))); |
| 0 | 2010 } |
| 2011 | |
|
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2012 if (compilation()->env()->jvmti_can_post_on_exceptions()) { |
| 0 | 2013 // we need to go through the exception lookup path to get JVMTI |
| 2014 // notification done | |
| 2015 unwind = false; | |
| 2016 } | |
| 2017 | |
| 2018 // move exception oop into fixed register | |
| 2019 __ move(exception_opr, exceptionOopOpr()); | |
| 2020 | |
| 2021 if (unwind) { | |
|
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2022 __ unwind_exception(exceptionOopOpr()); |
| 0 | 2023 } else { |
| 2024 __ throw_exception(exceptionPcOpr(), exceptionOopOpr(), info); | |
| 2025 } | |
| 2026 } | |
| 2027 | |
| 2028 | |
| 2029 void LIRGenerator::do_RoundFP(RoundFP* x) { | |
| 2030 LIRItem input(x->input(), this); | |
| 2031 input.load_item(); | |
| 2032 LIR_Opr input_opr = input.result(); | |
| 2033 assert(input_opr->is_register(), "why round if value is not in a register?"); | |
| 2034 assert(input_opr->is_single_fpu() || input_opr->is_double_fpu(), "input should be floating-point value"); | |
| 2035 if (input_opr->is_single_fpu()) { | |
| 2036 set_result(x, round_item(input_opr)); // This code path not currently taken | |
| 2037 } else { | |
| 2038 LIR_Opr result = new_register(T_DOUBLE); | |
| 2039 set_vreg_flag(result, must_start_in_memory); | |
| 2040 __ roundfp(input_opr, LIR_OprFact::illegalOpr, result); | |
| 2041 set_result(x, result); | |
| 2042 } | |
| 2043 } | |
| 2044 | |
|
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2045 // Here UnsafeGetRaw may have x->base() and x->index() be int or long |
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2046 // on both 64 and 32 bits. Expecting x->base() to be always long on 64bit. |
| 0 | 2047 void LIRGenerator::do_UnsafeGetRaw(UnsafeGetRaw* x) { |
| 2048 LIRItem base(x->base(), this); | |
| 2049 LIRItem idx(this); | |
| 2050 | |
| 2051 base.load_item(); | |
| 2052 if (x->has_index()) { | |
| 2053 idx.set_instruction(x->index()); | |
| 2054 idx.load_nonconstant(); | |
| 2055 } | |
| 2056 | |
| 2057 LIR_Opr reg = rlock_result(x, x->basic_type()); | |
| 2058 | |
| 2059 int log2_scale = 0; | |
| 2060 if (x->has_index()) { | |
| 2061 log2_scale = x->log2_scale(); | |
| 2062 } | |
| 2063 | |
| 2064 assert(!x->has_index() || idx.value() == x->index(), "should match"); | |
| 2065 | |
| 2066 LIR_Opr base_op = base.result(); | |
|
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2067 LIR_Opr index_op = idx.result(); |
| 0 | 2068 #ifndef _LP64 |
|
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2069 if (base_op->type() == T_LONG) { |
| 0 | 2070 base_op = new_register(T_INT); |
| 2071 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
|
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2072 } |
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2073 if (x->has_index()) { |
|
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2074 if (index_op->type() == T_LONG) { |
|
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2075 LIR_Opr long_index_op = index_op; |
|
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2076 if (index_op->is_constant()) { |
|
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2077 long_index_op = new_register(T_LONG); |
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2078 __ move(index_op, long_index_op); |
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2079 } |
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2080 index_op = new_register(T_INT); |
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2081 __ convert(Bytecodes::_l2i, long_index_op, index_op); |
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2082 } else { |
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2083 assert(x->index()->type()->tag() == intTag, "must be"); |
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2084 } |
| 0 | 2085 } |
|
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2086 // At this point base and index should be all ints. |
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2087 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
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2088 assert(!x->has_index() || index_op->type() == T_INT, "index should be an int"); |
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2089 #else |
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2090 if (x->has_index()) { |
|
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2091 if (index_op->type() == T_INT) { |
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2092 if (!index_op->is_constant()) { |
|
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2093 index_op = new_register(T_LONG); |
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2094 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
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2095 } |
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2096 } else { |
|
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2097 assert(index_op->type() == T_LONG, "must be"); |
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2098 if (index_op->is_constant()) { |
|
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2099 index_op = new_register(T_LONG); |
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2100 __ move(idx.result(), index_op); |
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2101 } |
|
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|
2102 } |
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2103 } |
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2104 // At this point base is a long non-constant |
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2105 // Index is a long register or a int constant. |
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2106 // We allow the constant to stay an int because that would allow us a more compact encoding by |
|
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2107 // embedding an immediate offset in the address expression. If we have a long constant, we have to |
|
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|
2108 // move it into a register first. |
|
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|
2109 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a long non-constant"); |
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2110 assert(!x->has_index() || (index_op->type() == T_INT && index_op->is_constant()) || |
|
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|
2111 (index_op->type() == T_LONG && !index_op->is_constant()), "unexpected index type"); |
| 0 | 2112 #endif |
| 2113 | |
| 2114 BasicType dst_type = x->basic_type(); | |
| 2115 | |
| 2116 LIR_Address* addr; | |
| 2117 if (index_op->is_constant()) { | |
| 2118 assert(log2_scale == 0, "must not have a scale"); | |
|
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2119 assert(index_op->type() == T_INT, "only int constants supported"); |
| 0 | 2120 addr = new LIR_Address(base_op, index_op->as_jint(), dst_type); |
| 2121 } else { | |
| 304 | 2122 #ifdef X86 |
| 0 | 2123 addr = new LIR_Address(base_op, index_op, LIR_Address::Scale(log2_scale), 0, dst_type); |
|
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2124 #elif defined(ARM) |
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2125 addr = generate_address(base_op, index_op, log2_scale, 0, dst_type); |
| 0 | 2126 #else |
| 2127 if (index_op->is_illegal() || log2_scale == 0) { | |
| 2128 addr = new LIR_Address(base_op, index_op, dst_type); | |
| 2129 } else { | |
| 1060 | 2130 LIR_Opr tmp = new_pointer_register(); |
| 0 | 2131 __ shift_left(index_op, log2_scale, tmp); |
| 2132 addr = new LIR_Address(base_op, tmp, dst_type); | |
| 2133 } | |
| 2134 #endif | |
| 2135 } | |
| 2136 | |
| 2137 if (x->may_be_unaligned() && (dst_type == T_LONG || dst_type == T_DOUBLE)) { | |
| 2138 __ unaligned_move(addr, reg); | |
| 2139 } else { | |
| 2002 | 2140 if (dst_type == T_OBJECT && x->is_wide()) { |
| 2141 __ move_wide(addr, reg); | |
| 2142 } else { | |
| 2143 __ move(addr, reg); | |
| 2144 } | |
| 0 | 2145 } |
| 2146 } | |
| 2147 | |
| 2148 | |
| 2149 void LIRGenerator::do_UnsafePutRaw(UnsafePutRaw* x) { | |
| 2150 int log2_scale = 0; | |
| 2151 BasicType type = x->basic_type(); | |
| 2152 | |
| 2153 if (x->has_index()) { | |
| 2154 log2_scale = x->log2_scale(); | |
| 2155 } | |
| 2156 | |
| 2157 LIRItem base(x->base(), this); | |
| 2158 LIRItem value(x->value(), this); | |
| 2159 LIRItem idx(this); | |
| 2160 | |
| 2161 base.load_item(); | |
| 2162 if (x->has_index()) { | |
| 2163 idx.set_instruction(x->index()); | |
| 2164 idx.load_item(); | |
| 2165 } | |
| 2166 | |
| 2167 if (type == T_BYTE || type == T_BOOLEAN) { | |
| 2168 value.load_byte_item(); | |
| 2169 } else { | |
| 2170 value.load_item(); | |
| 2171 } | |
| 2172 | |
| 2173 set_no_result(x); | |
| 2174 | |
| 2175 LIR_Opr base_op = base.result(); | |
|
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2176 LIR_Opr index_op = idx.result(); |
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2177 |
| 0 | 2178 #ifndef _LP64 |
|
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2179 if (base_op->type() == T_LONG) { |
| 0 | 2180 base_op = new_register(T_INT); |
| 2181 __ convert(Bytecodes::_l2i, base.result(), base_op); | |
|
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2182 } |
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2183 if (x->has_index()) { |
|
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2184 if (index_op->type() == T_LONG) { |
|
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2185 index_op = new_register(T_INT); |
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2186 __ convert(Bytecodes::_l2i, idx.result(), index_op); |
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2187 } |
| 0 | 2188 } |
|
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2189 // At this point base and index should be all ints and not constants |
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2190 assert(base_op->type() == T_INT && !base_op->is_constant(), "base should be an non-constant int"); |
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2191 assert(!x->has_index() || (index_op->type() == T_INT && !index_op->is_constant()), "index should be an non-constant int"); |
|
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2192 #else |
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2193 if (x->has_index()) { |
|
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2194 if (index_op->type() == T_INT) { |
|
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2195 index_op = new_register(T_LONG); |
|
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2196 __ convert(Bytecodes::_i2l, idx.result(), index_op); |
|
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|
2197 } |
|
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|
2198 } |
|
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|
2199 // At this point base and index are long and non-constant |
|
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|
2200 assert(base_op->type() == T_LONG && !base_op->is_constant(), "base must be a non-constant long"); |
|
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|
2201 assert(!x->has_index() || (index_op->type() == T_LONG && !index_op->is_constant()), "index must be a non-constant long"); |
| 0 | 2202 #endif |
| 2203 | |
| 2204 if (log2_scale != 0) { | |
| 2205 // temporary fix (platform dependent code without shift on Intel would be better) | |
|
20491
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|
2206 // TODO: ARM also allows embedded shift in the address |
| 0 | 2207 __ shift_left(index_op, log2_scale, index_op); |
| 2208 } | |
| 2209 | |
| 2210 LIR_Address* addr = new LIR_Address(base_op, index_op, x->basic_type()); | |
| 2211 __ move(value.result(), addr); | |
| 2212 } | |
| 2213 | |
| 2214 | |
| 2215 void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) { | |
| 2216 BasicType type = x->basic_type(); | |
| 2217 LIRItem src(x->object(), this); | |
| 2218 LIRItem off(x->offset(), this); | |
| 2219 | |
| 2220 off.load_item(); | |
| 2221 src.load_item(); | |
| 2222 | |
|
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|
2223 LIR_Opr value = rlock_result(x, x->basic_type()); |
|
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2224 |
|
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|
2225 get_Object_unsafe(value, src.result(), off.result(), type, x->is_volatile()); |
|
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|
2226 |
|
8001
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|
2227 #if INCLUDE_ALL_GCS |
|
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|
2228 // We might be reading the value of the referent field of a |
|
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|
2229 // Reference object in order to attach it back to the live |
|
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|
2230 // object graph. If G1 is enabled then we need to record |
|
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|
2231 // the value that is being returned in an SATB log buffer. |
|
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|
2232 // |
|
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|
2233 // We need to generate code similar to the following... |
|
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|
2234 // |
|
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|
2235 // if (offset == java_lang_ref_Reference::referent_offset) { |
|
e1162778c1c8
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|
2236 // if (src != NULL) { |
|
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|
2237 // if (klass(src)->reference_type() != REF_NONE) { |
|
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|
2238 // pre_barrier(..., value, ...); |
|
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|
2239 // } |
|
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|
2240 // } |
|
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|
2241 // } |
|
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|
2242 |
|
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|
2243 if (UseG1GC && type == T_OBJECT) { |
|
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|
2244 bool gen_pre_barrier = true; // Assume we need to generate pre_barrier. |
|
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|
2245 bool gen_offset_check = true; // Assume we need to generate the offset guard. |
|
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|
2246 bool gen_source_check = true; // Assume we need to check the src object for null. |
|
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|
2247 bool gen_type_check = true; // Assume we need to check the reference_type. |
|
3249
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|
2248 |
|
e1162778c1c8
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|
2249 if (off.is_constant()) { |
|
3254
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johnc
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|
2250 jlong off_con = (off.type()->is_int() ? |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2251 (jlong) off.get_jint_constant() : |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
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|
2252 off.get_jlong_constant()); |
|
59766fd005ff
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johnc
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|
2253 |
|
59766fd005ff
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johnc
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|
2254 |
|
59766fd005ff
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johnc
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|
2255 if (off_con != (jlong) java_lang_ref_Reference::referent_offset) { |
|
3249
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|
2256 // The constant offset is something other than referent_offset. |
|
e1162778c1c8
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|
2257 // We can skip generating/checking the remaining guards and |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2258 // skip generation of the code stub. |
|
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|
2259 gen_pre_barrier = false; |
|
3249
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johnc
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|
2260 } else { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2261 // The constant offset is the same as referent_offset - |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2262 // we do not need to generate a runtime offset check. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2263 gen_offset_check = false; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2264 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2265 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2266 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2267 // We don't need to generate stub if the source object is an array |
|
6615
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|
2268 if (gen_pre_barrier && src.type()->is_array()) { |
|
09aad8452938
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|
2269 gen_pre_barrier = false; |
|
3249
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johnc
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|
2270 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2271 |
|
6615
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6266
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|
2272 if (gen_pre_barrier) { |
|
3249
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johnc
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|
2273 // We still need to continue with the checks. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2274 if (src.is_constant()) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2275 ciObject* src_con = src.get_jobject_constant(); |
|
10397
075ea888b039
8010724: [parfait] Null pointer dereference in hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
morris
parents:
10116
diff
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|
2276 guarantee(src_con != NULL, "no source constant"); |
|
3249
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johnc
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|
2277 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2278 if (src_con->is_null_object()) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2279 // The constant src object is null - We can skip |
|
e1162778c1c8
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|
2280 // generating the code stub. |
|
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|
2281 gen_pre_barrier = false; |
|
3249
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|
2282 } else { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2283 // Non-null constant source object. We still have to generate |
|
e1162778c1c8
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|
2284 // the slow stub - but we don't need to generate the runtime |
|
e1162778c1c8
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|
2285 // null object check. |
|
e1162778c1c8
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|
2286 gen_source_check = false; |
|
e1162778c1c8
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|
2287 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2288 } |
|
e1162778c1c8
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|
2289 } |
|
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|
2290 if (gen_pre_barrier && !PatchALot) { |
|
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|
2291 // Can the klass of object be statically determined to be |
|
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|
2292 // a sub-class of Reference? |
|
09aad8452938
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|
2293 ciType* type = src.value()->declared_type(); |
|
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|
2294 if ((type != NULL) && type->is_loaded()) { |
|
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|
2295 if (type->is_subtype_of(compilation()->env()->Reference_klass())) { |
|
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|
2296 gen_type_check = false; |
|
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|
2297 } else if (type->is_klass() && |
|
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|
2298 !compilation()->env()->Object_klass()->is_subtype_of(type->as_klass())) { |
|
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|
2299 // Not Reference and not Object klass. |
|
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|
2300 gen_pre_barrier = false; |
|
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|
2301 } |
|
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|
2302 } |
|
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|
2303 } |
|
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|
2304 |
|
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|
2305 if (gen_pre_barrier) { |
|
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|
2306 LabelObj* Lcont = new LabelObj(); |
|
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|
2307 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2308 // We can have generate one runtime check here. Let's start with |
|
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|
2309 // the offset check. |
|
e1162778c1c8
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|
2310 if (gen_offset_check) { |
|
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|
2311 // if (offset != referent_offset) -> continue |
|
3254
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|
2312 // If offset is an int then we can do the comparison with the |
|
59766fd005ff
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|
2313 // referent_offset constant; otherwise we need to move |
|
59766fd005ff
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|
2314 // referent_offset into a temporary register and generate |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
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|
2315 // a reg-reg compare. |
|
59766fd005ff
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|
2316 |
|
59766fd005ff
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|
2317 LIR_Opr referent_off; |
|
59766fd005ff
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|
2318 |
|
59766fd005ff
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|
2319 if (off.type()->is_int()) { |
|
59766fd005ff
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|
2320 referent_off = LIR_OprFact::intConst(java_lang_ref_Reference::referent_offset); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2321 } else { |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2322 assert(off.type()->is_long(), "what else?"); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2323 referent_off = new_register(T_LONG); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2324 __ move(LIR_OprFact::longConst(java_lang_ref_Reference::referent_offset), referent_off); |
|
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3249
diff
changeset
|
2325 } |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2326 __ cmp(lir_cond_notEqual, off.result(), referent_off); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2327 __ branch(lir_cond_notEqual, as_BasicType(off.type()), Lcont->label()); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2328 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2329 if (gen_source_check) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2330 // offset is a const and equals referent offset |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2331 // if (source == null) -> continue |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2332 __ cmp(lir_cond_equal, src.result(), LIR_OprFact::oopConst(NULL)); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2333 __ branch(lir_cond_equal, T_OBJECT, Lcont->label()); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2334 } |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2335 LIR_Opr src_klass = new_register(T_OBJECT); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2336 if (gen_type_check) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2337 // We have determined that offset == referent_offset && src != null. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2338 // if (src->_klass->_reference_type == REF_NONE) -> continue |
|
12000
8d77d02828d9
8016474: Crash in sun.reflect.UnsafeObjectFieldAccessorImpl.get
twisti
parents:
11080
diff
changeset
|
2339 __ move(new LIR_Address(src.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), src_klass); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
2340 LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE); |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2341 LIR_Opr reference_type = new_register(T_INT); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2342 __ move(reference_type_addr, reference_type); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2343 __ cmp(lir_cond_equal, reference_type, LIR_OprFact::intConst(REF_NONE)); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2344 __ branch(lir_cond_equal, T_INT, Lcont->label()); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2345 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2346 { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2347 // We have determined that src->_klass->_reference_type != REF_NONE |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2348 // so register the value in the referent field with the pre-barrier. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2349 pre_barrier(LIR_OprFact::illegalOpr /* addr_opr */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2350 value /* pre_val */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2351 false /* do_load */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2352 false /* patch */, |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2353 NULL /* info */); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2354 } |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2355 __ branch_destination(Lcont->label()); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2356 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2357 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7425
diff
changeset
|
2358 #endif // INCLUDE_ALL_GCS |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
2359 |
| 0 | 2360 if (x->is_volatile() && os::is_MP()) __ membar_acquire(); |
| 2361 } | |
| 2362 | |
| 2363 | |
| 2364 void LIRGenerator::do_UnsafePutObject(UnsafePutObject* x) { | |
| 2365 BasicType type = x->basic_type(); | |
| 2366 LIRItem src(x->object(), this); | |
| 2367 LIRItem off(x->offset(), this); | |
| 2368 LIRItem data(x->value(), this); | |
| 2369 | |
| 2370 src.load_item(); | |
| 2371 if (type == T_BOOLEAN || type == T_BYTE) { | |
| 2372 data.load_byte_item(); | |
| 2373 } else { | |
| 2374 data.load_item(); | |
| 2375 } | |
| 2376 off.load_item(); | |
| 2377 | |
| 2378 set_no_result(x); | |
| 2379 | |
| 2380 if (x->is_volatile() && os::is_MP()) __ membar_release(); | |
| 2381 put_Object_unsafe(src.result(), off.result(), data.result(), type, x->is_volatile()); | |
|
2123
df307487d610
7010665: Misplaced membar in C1 implementation of Unsafe.get/putXXX
dholmes
parents:
2007
diff
changeset
|
2382 if (x->is_volatile() && os::is_MP()) __ membar(); |
| 0 | 2383 } |
| 2384 | |
| 2385 | |
| 2386 void LIRGenerator::do_UnsafePrefetch(UnsafePrefetch* x, bool is_store) { | |
| 2387 LIRItem src(x->object(), this); | |
| 2388 LIRItem off(x->offset(), this); | |
| 2389 | |
| 2390 src.load_item(); | |
| 2391 if (off.is_constant() && can_inline_as_constant(x->offset())) { | |
| 2392 // let it be a constant | |
| 2393 off.dont_load_item(); | |
| 2394 } else { | |
| 2395 off.load_item(); | |
| 2396 } | |
| 2397 | |
| 2398 set_no_result(x); | |
| 2399 | |
| 2400 LIR_Address* addr = generate_address(src.result(), off.result(), 0, 0, T_BYTE); | |
| 2401 __ prefetch(addr, is_store); | |
| 2402 } | |
| 2403 | |
| 2404 | |
| 2405 void LIRGenerator::do_UnsafePrefetchRead(UnsafePrefetchRead* x) { | |
| 2406 do_UnsafePrefetch(x, false); | |
| 2407 } | |
| 2408 | |
| 2409 | |
| 2410 void LIRGenerator::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) { | |
| 2411 do_UnsafePrefetch(x, true); | |
| 2412 } | |
| 2413 | |
| 2414 | |
| 2415 void LIRGenerator::do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux) { | |
| 2416 int lng = x->length(); | |
| 2417 | |
| 2418 for (int i = 0; i < lng; i++) { | |
| 2419 SwitchRange* one_range = x->at(i); | |
| 2420 int low_key = one_range->low_key(); | |
| 2421 int high_key = one_range->high_key(); | |
| 2422 BlockBegin* dest = one_range->sux(); | |
| 2423 if (low_key == high_key) { | |
| 2424 __ cmp(lir_cond_equal, value, low_key); | |
| 2425 __ branch(lir_cond_equal, T_INT, dest); | |
| 2426 } else if (high_key - low_key == 1) { | |
| 2427 __ cmp(lir_cond_equal, value, low_key); | |
| 2428 __ branch(lir_cond_equal, T_INT, dest); | |
| 2429 __ cmp(lir_cond_equal, value, high_key); | |
| 2430 __ branch(lir_cond_equal, T_INT, dest); | |
| 2431 } else { | |
| 2432 LabelObj* L = new LabelObj(); | |
| 2433 __ cmp(lir_cond_less, value, low_key); | |
| 4816 | 2434 __ branch(lir_cond_less, T_INT, L->label()); |
| 0 | 2435 __ cmp(lir_cond_lessEqual, value, high_key); |
| 2436 __ branch(lir_cond_lessEqual, T_INT, dest); | |
| 2437 __ branch_destination(L->label()); | |
| 2438 } | |
| 2439 } | |
| 2440 __ jump(default_sux); | |
| 2441 } | |
| 2442 | |
| 2443 | |
| 2444 SwitchRangeArray* LIRGenerator::create_lookup_ranges(TableSwitch* x) { | |
| 2445 SwitchRangeList* res = new SwitchRangeList(); | |
| 2446 int len = x->length(); | |
| 2447 if (len > 0) { | |
| 2448 BlockBegin* sux = x->sux_at(0); | |
| 2449 int key = x->lo_key(); | |
| 2450 BlockBegin* default_sux = x->default_sux(); | |
| 2451 SwitchRange* range = new SwitchRange(key, sux); | |
| 2452 for (int i = 0; i < len; i++, key++) { | |
| 2453 BlockBegin* new_sux = x->sux_at(i); | |
| 2454 if (sux == new_sux) { | |
| 2455 // still in same range | |
| 2456 range->set_high_key(key); | |
| 2457 } else { | |
| 2458 // skip tests which explicitly dispatch to the default | |
| 2459 if (sux != default_sux) { | |
| 2460 res->append(range); | |
| 2461 } | |
| 2462 range = new SwitchRange(key, new_sux); | |
| 2463 } | |
| 2464 sux = new_sux; | |
| 2465 } | |
| 2466 if (res->length() == 0 || res->last() != range) res->append(range); | |
| 2467 } | |
| 2468 return res; | |
| 2469 } | |
| 2470 | |
| 2471 | |
| 2472 // we expect the keys to be sorted by increasing value | |
| 2473 SwitchRangeArray* LIRGenerator::create_lookup_ranges(LookupSwitch* x) { | |
| 2474 SwitchRangeList* res = new SwitchRangeList(); | |
| 2475 int len = x->length(); | |
| 2476 if (len > 0) { | |
| 2477 BlockBegin* default_sux = x->default_sux(); | |
| 2478 int key = x->key_at(0); | |
| 2479 BlockBegin* sux = x->sux_at(0); | |
| 2480 SwitchRange* range = new SwitchRange(key, sux); | |
| 2481 for (int i = 1; i < len; i++) { | |
| 2482 int new_key = x->key_at(i); | |
| 2483 BlockBegin* new_sux = x->sux_at(i); | |
| 2484 if (key+1 == new_key && sux == new_sux) { | |
| 2485 // still in same range | |
| 2486 range->set_high_key(new_key); | |
| 2487 } else { | |
| 2488 // skip tests which explicitly dispatch to the default | |
| 2489 if (range->sux() != default_sux) { | |
| 2490 res->append(range); | |
| 2491 } | |
| 2492 range = new SwitchRange(new_key, new_sux); | |
| 2493 } | |
| 2494 key = new_key; | |
| 2495 sux = new_sux; | |
| 2496 } | |
| 2497 if (res->length() == 0 || res->last() != range) res->append(range); | |
| 2498 } | |
| 2499 return res; | |
| 2500 } | |
| 2501 | |
| 2502 | |
| 2503 void LIRGenerator::do_TableSwitch(TableSwitch* x) { | |
| 2504 LIRItem tag(x->tag(), this); | |
| 2505 tag.load_item(); | |
| 2506 set_no_result(x); | |
| 2507 | |
| 2508 if (x->is_safepoint()) { | |
| 2509 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
| 2510 } | |
| 2511 | |
| 2512 // move values into phi locations | |
| 2513 move_to_phi(x->state()); | |
| 2514 | |
| 2515 int lo_key = x->lo_key(); | |
| 2516 int hi_key = x->hi_key(); | |
| 2517 int len = x->length(); | |
| 2518 LIR_Opr value = tag.result(); | |
| 2519 if (UseTableRanges) { | |
| 2520 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
| 2521 } else { | |
| 2522 for (int i = 0; i < len; i++) { | |
| 2523 __ cmp(lir_cond_equal, value, i + lo_key); | |
| 2524 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
| 2525 } | |
| 2526 __ jump(x->default_sux()); | |
| 2527 } | |
| 2528 } | |
| 2529 | |
| 2530 | |
| 2531 void LIRGenerator::do_LookupSwitch(LookupSwitch* x) { | |
| 2532 LIRItem tag(x->tag(), this); | |
| 2533 tag.load_item(); | |
| 2534 set_no_result(x); | |
| 2535 | |
| 2536 if (x->is_safepoint()) { | |
| 2537 __ safepoint(safepoint_poll_register(), state_for(x, x->state_before())); | |
| 2538 } | |
| 2539 | |
| 2540 // move values into phi locations | |
| 2541 move_to_phi(x->state()); | |
| 2542 | |
| 2543 LIR_Opr value = tag.result(); | |
| 2544 if (UseTableRanges) { | |
| 2545 do_SwitchRanges(create_lookup_ranges(x), value, x->default_sux()); | |
| 2546 } else { | |
| 2547 int len = x->length(); | |
| 2548 for (int i = 0; i < len; i++) { | |
| 2549 __ cmp(lir_cond_equal, value, x->key_at(i)); | |
| 2550 __ branch(lir_cond_equal, T_INT, x->sux_at(i)); | |
| 2551 } | |
| 2552 __ jump(x->default_sux()); | |
| 2553 } | |
| 2554 } | |
| 2555 | |
| 2556 | |
| 2557 void LIRGenerator::do_Goto(Goto* x) { | |
| 2558 set_no_result(x); | |
| 2559 | |
| 2560 if (block()->next()->as_OsrEntry()) { | |
| 2561 // need to free up storage used for OSR entry point | |
| 2562 LIR_Opr osrBuffer = block()->next()->operand(); | |
| 2563 BasicTypeList signature; | |
| 2564 signature.append(T_INT); | |
| 2565 CallingConvention* cc = frame_map()->c_calling_convention(&signature); | |
| 2566 __ move(osrBuffer, cc->args()->at(0)); | |
| 2567 __ call_runtime_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_end), | |
| 2568 getThreadTemp(), LIR_OprFact::illegalOpr, cc->args()); | |
| 2569 } | |
| 2570 | |
| 2571 if (x->is_safepoint()) { | |
| 2572 ValueStack* state = x->state_before() ? x->state_before() : x->state(); | |
| 2573 | |
| 2574 // increment backedge counter if needed | |
| 1783 | 2575 CodeEmitInfo* info = state_for(x, state); |
|
3997
940513efe83a
7097679: Tiered: events with bad bci to Gotos reduced from Ifs
iveresov
parents:
3964
diff
changeset
|
2576 increment_backedge_counter(info, x->profiled_bci()); |
| 0 | 2577 CodeEmitInfo* safepoint_info = state_for(x, state); |
| 2578 __ safepoint(safepoint_poll_register(), safepoint_info); | |
| 2579 } | |
| 2580 | |
| 1783 | 2581 // Gotos can be folded Ifs, handle this case. |
| 2582 if (x->should_profile()) { | |
| 2583 ciMethod* method = x->profiled_method(); | |
| 2584 assert(method != NULL, "method should be set if branch is profiled"); | |
|
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
2585 ciMethodData* md = method->method_data_or_null(); |
|
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
2586 assert(md != NULL, "Sanity"); |
| 1783 | 2587 ciProfileData* data = md->bci_to_data(x->profiled_bci()); |
| 2588 assert(data != NULL, "must have profiling data"); | |
| 2589 int offset; | |
| 2590 if (x->direction() == Goto::taken) { | |
| 2591 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
| 2592 offset = md->byte_offset_of_slot(data, BranchData::taken_offset()); | |
| 2593 } else if (x->direction() == Goto::not_taken) { | |
| 2594 assert(data->is_BranchData(), "need BranchData for two-way branches"); | |
| 2595 offset = md->byte_offset_of_slot(data, BranchData::not_taken_offset()); | |
| 2596 } else { | |
| 2597 assert(data->is_JumpData(), "need JumpData for branches"); | |
| 2598 offset = md->byte_offset_of_slot(data, JumpData::taken_offset()); | |
| 2599 } | |
|
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2600 LIR_Opr md_reg = new_register(T_METADATA); |
|
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
2601 __ metadata2reg(md->constant_encoding(), md_reg); |
| 1783 | 2602 |
| 2603 increment_counter(new LIR_Address(md_reg, offset, | |
| 2604 NOT_LP64(T_INT) LP64_ONLY(T_LONG)), DataLayout::counter_increment); | |
| 2605 } | |
| 2606 | |
| 0 | 2607 // emit phi-instruction move after safepoint since this simplifies |
| 2608 // describing the state as the safepoint. | |
| 2609 move_to_phi(x->state()); | |
| 2610 | |
| 2611 __ jump(x->default_sux()); | |
| 2612 } | |
| 2613 | |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2614 /** |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2615 * Emit profiling code if needed for arguments, parameters, return value types |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2616 * |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2617 * @param md MDO the code will update at runtime |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2618 * @param md_base_offset common offset in the MDO for this profile and subsequent ones |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2619 * @param md_offset offset in the MDO (on top of md_base_offset) for this profile |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2620 * @param profiled_k current profile |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2621 * @param obj IR node for the object to be profiled |
|
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diff
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|
2622 * @param mdp register to hold the pointer inside the MDO (md + md_base_offset). |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
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12969
diff
changeset
|
2623 * Set once we find an update to make and use for next ones. |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2624 * @param not_null true if we know obj cannot be null |
|
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8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2625 * @param signature_at_call_k signature at call for obj |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2626 * @param callee_signature_k signature of callee for obj |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2627 * at call and callee signatures differ at method handle call |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2628 * @return the only klass we know will ever be seen at this profile point |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2629 */ |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2630 ciKlass* LIRGenerator::profile_type(ciMethodData* md, int md_base_offset, int md_offset, intptr_t profiled_k, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2631 Value obj, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2632 ciKlass* callee_signature_k) { |
|
12875
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8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2633 ciKlass* result = NULL; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2634 bool do_null = !not_null && !TypeEntries::was_null_seen(profiled_k); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2635 bool do_update = !TypeEntries::is_type_unknown(profiled_k); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2636 // known not to be null or null bit already set and already set to |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2637 // unknown: nothing we can do to improve profiling |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2638 if (!do_null && !do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2639 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2640 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2641 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2642 ciKlass* exact_klass = NULL; |
|
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8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2643 Compilation* comp = Compilation::current(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2644 if (do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2645 // try to find exact type, using CHA if possible, so that loading |
|
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8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2646 // the klass from the object can be avoided |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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diff
changeset
|
2647 ciType* type = obj->exact_type(); |
|
12875
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12868
diff
changeset
|
2648 if (type == NULL) { |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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diff
changeset
|
2649 type = obj->declared_type(); |
|
12875
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diff
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|
2650 type = comp->cha_exact_type(type); |
|
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8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2651 } |
|
d13d7aba8c12
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diff
changeset
|
2652 assert(type == NULL || type->is_klass(), "type should be class"); |
|
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8023657: New type profiling points: arguments to call
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diff
changeset
|
2653 exact_klass = (type != NULL && type->is_loaded()) ? (ciKlass*)type : NULL; |
|
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8023657: New type profiling points: arguments to call
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diff
changeset
|
2654 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2655 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2656 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2657 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2658 if (!do_null && !do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2659 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2660 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2661 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2662 ciKlass* exact_signature_k = NULL; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
2663 if (do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2664 // Is the type from the signature exact (the only one possible)? |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2665 exact_signature_k = signature_at_call_k->exact_klass(); |
|
12875
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diff
changeset
|
2666 if (exact_signature_k == NULL) { |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
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12969
diff
changeset
|
2667 exact_signature_k = comp->cha_exact_type(signature_at_call_k); |
|
12875
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diff
changeset
|
2668 } else { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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12868
diff
changeset
|
2669 result = exact_signature_k; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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12868
diff
changeset
|
2670 // Known statically. No need to emit any code: prevent |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2671 // LIR_Assembler::emit_profile_type() from emitting useless code |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
2672 profiled_k = ciTypeEntries::with_status(result, profiled_k); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2673 } |
|
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2674 // exact_klass and exact_signature_k can be both non NULL but |
|
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2675 // different if exact_klass is loaded after the ciObject for |
|
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2676 // exact_signature_k is created. |
|
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2677 if (exact_klass == NULL && exact_signature_k != NULL && exact_klass != exact_signature_k) { |
|
12875
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12868
diff
changeset
|
2678 // sometimes the type of the signature is better than the best type |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2679 // the compiler has |
|
d13d7aba8c12
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12868
diff
changeset
|
2680 exact_klass = exact_signature_k; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2681 } |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2682 if (callee_signature_k != NULL && |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2683 callee_signature_k != signature_at_call_k) { |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2684 ciKlass* improved_klass = callee_signature_k->exact_klass(); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2685 if (improved_klass == NULL) { |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2686 improved_klass = comp->cha_exact_type(callee_signature_k); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2687 } |
|
17925
45e59fae8f2b
8041481: JVM crashes with collect_args_for_profiling
roland
parents:
17900
diff
changeset
|
2688 if (exact_klass == NULL && improved_klass != NULL && exact_klass != improved_klass) { |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2689 exact_klass = exact_signature_k; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2690 } |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2691 } |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2692 do_update = exact_klass == NULL || ciTypeEntries::valid_ciklass(profiled_k) != exact_klass; |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2693 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2694 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2695 if (!do_null && !do_update) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2696 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2697 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2698 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2699 if (mdp == LIR_OprFact::illegalOpr) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2700 mdp = new_register(T_METADATA); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2701 __ metadata2reg(md->constant_encoding(), mdp); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2702 if (md_base_offset != 0) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2703 LIR_Address* base_type_address = new LIR_Address(mdp, md_base_offset, T_ADDRESS); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2704 mdp = new_pointer_register(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2705 __ leal(LIR_OprFact::address(base_type_address), mdp); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2706 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2707 } |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2708 LIRItem value(obj, this); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2709 value.load_item(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
2710 __ profile_type(new LIR_Address(mdp, md_offset, T_METADATA), |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2711 value.result(), exact_klass, profiled_k, new_pointer_register(), not_null, exact_signature_k != NULL); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2712 return result; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2713 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
2714 |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2715 // profile parameters on entry to the root of the compilation |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2716 void LIRGenerator::profile_parameters(Base* x) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2717 if (compilation()->profile_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2718 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2719 ciMethodData* md = scope()->method()->method_data_or_null(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2720 assert(md != NULL, "Sanity"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2721 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2722 if (md->parameters_type_data() != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2723 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2724 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2725 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2726 for (int java_index = 0, i = 0, j = 0; j < parameters_type_data->number_of_parameters(); i++) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2727 LIR_Opr src = args->at(i); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2728 assert(!src->is_illegal(), "check"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2729 BasicType t = src->type(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2730 if (t == T_OBJECT || t == T_ARRAY) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2731 intptr_t profiled_k = parameters->type(j); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2732 Local* local = x->state()->local_at(java_index)->as_Local(); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2733 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(parameters_type_data, ParametersTypeData::type_offset(0)), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2734 in_bytes(ParametersTypeData::type_offset(j)) - in_bytes(ParametersTypeData::type_offset(0)), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
2735 profiled_k, local, mdp, false, local->declared_type()->as_klass(), NULL); |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2736 // If the profile is known statically set it once for all and do not emit any code |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2737 if (exact != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2738 md->set_parameter_type(j, exact); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2739 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2740 j++; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2741 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
2742 java_index += type2size[t]; |
|
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|
2743 } |
|
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|
2744 } |
|
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|
2745 } |
|
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|
2746 } |
|
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|
2747 |
| 0 | 2748 void LIRGenerator::do_Base(Base* x) { |
| 2749 __ std_entry(LIR_OprFact::illegalOpr); | |
| 2750 // Emit moves from physical registers / stack slots to virtual registers | |
| 2751 CallingConvention* args = compilation()->frame_map()->incoming_arguments(); | |
| 2752 IRScope* irScope = compilation()->hir()->top_scope(); | |
| 2753 int java_index = 0; | |
| 2754 for (int i = 0; i < args->length(); i++) { | |
| 2755 LIR_Opr src = args->at(i); | |
| 2756 assert(!src->is_illegal(), "check"); | |
| 2757 BasicType t = src->type(); | |
| 2758 | |
| 2759 // Types which are smaller than int are passed as int, so | |
| 2760 // correct the type which passed. | |
| 2761 switch (t) { | |
| 2762 case T_BYTE: | |
| 2763 case T_BOOLEAN: | |
| 2764 case T_SHORT: | |
| 2765 case T_CHAR: | |
| 2766 t = T_INT; | |
| 2767 break; | |
| 2768 } | |
| 2769 | |
| 2770 LIR_Opr dest = new_register(t); | |
| 2771 __ move(src, dest); | |
| 2772 | |
| 2773 // Assign new location to Local instruction for this local | |
| 2774 Local* local = x->state()->local_at(java_index)->as_Local(); | |
| 2775 assert(local != NULL, "Locals for incoming arguments must have been created"); | |
|
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|
2776 #ifndef __SOFTFP__ |
|
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|
2777 // The java calling convention passes double as long and float as int. |
| 0 | 2778 assert(as_ValueType(t)->tag() == local->type()->tag(), "check"); |
|
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|
2779 #endif // __SOFTFP__ |
| 0 | 2780 local->set_operand(dest); |
| 2781 _instruction_for_operand.at_put_grow(dest->vreg_number(), local, NULL); | |
| 2782 java_index += type2size[t]; | |
| 2783 } | |
| 2784 | |
|
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c96bf21b756f
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diff
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|
2785 if (compilation()->env()->dtrace_method_probes()) { |
| 0 | 2786 BasicTypeList signature; |
| 2002 | 2787 signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
|
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diff
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|
2788 signature.append(T_METADATA); // Method* |
| 0 | 2789 LIR_OprList* args = new LIR_OprList(); |
| 2790 args->append(getThreadPointer()); | |
|
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8a02ca5e5576
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|
2791 LIR_Opr meth = new_register(T_METADATA); |
|
8a02ca5e5576
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diff
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|
2792 __ metadata2reg(method()->constant_encoding(), meth); |
| 0 | 2793 args->append(meth); |
| 2794 call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), voidType, NULL); | |
| 2795 } | |
| 2796 | |
| 2797 if (method()->is_synchronized()) { | |
| 2798 LIR_Opr obj; | |
| 2799 if (method()->is_static()) { | |
| 2800 obj = new_register(T_OBJECT); | |
|
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819
diff
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|
2801 __ oop2reg(method()->holder()->java_mirror()->constant_encoding(), obj); |
| 0 | 2802 } else { |
| 2803 Local* receiver = x->state()->local_at(0)->as_Local(); | |
| 2804 assert(receiver != NULL, "must already exist"); | |
| 2805 obj = receiver->operand(); | |
| 2806 } | |
| 2807 assert(obj->is_valid(), "must be valid"); | |
| 2808 | |
| 2809 if (method()->is_synchronized() && GenerateSynchronizationCode) { | |
| 2810 LIR_Opr lock = new_register(T_INT); | |
| 2811 __ load_stack_address_monitor(0, lock); | |
| 2812 | |
| 8860 | 2813 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, x->check_flag(Instruction::DeoptimizeOnException)); |
| 0 | 2814 CodeStub* slow_path = new MonitorEnterStub(obj, lock, info); |
| 2815 | |
| 2816 // receiver is guaranteed non-NULL so don't need CodeEmitInfo | |
| 2817 __ lock_object(syncTempOpr(), obj, lock, new_register(T_OBJECT), slow_path, NULL); | |
| 2818 } | |
| 2819 } | |
| 2820 | |
| 2821 // increment invocation counters if needed | |
| 1783 | 2822 if (!method()->is_accessor()) { // Accessors do not have MDOs, so no counting. |
|
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|
2823 profile_parameters(x); |
| 8860 | 2824 CodeEmitInfo* info = new CodeEmitInfo(scope()->start()->state()->copy(ValueStack::StateBefore, SynchronizationEntryBCI), NULL, false); |
| 1783 | 2825 increment_invocation_counter(info); |
| 2826 } | |
| 0 | 2827 |
| 2828 // all blocks with a successor must end with an unconditional jump | |
| 2829 // to the successor even if they are consecutive | |
| 2830 __ jump(x->default_sux()); | |
| 2831 } | |
| 2832 | |
| 2833 | |
| 2834 void LIRGenerator::do_OsrEntry(OsrEntry* x) { | |
| 2835 // construct our frame and model the production of incoming pointer | |
| 2836 // to the OSR buffer. | |
| 2837 __ osr_entry(LIR_Assembler::osrBufferPointer()); | |
| 2838 LIR_Opr result = rlock_result(x); | |
| 2839 __ move(LIR_Assembler::osrBufferPointer(), result); | |
| 2840 } | |
| 2841 | |
| 2842 | |
| 2843 void LIRGenerator::invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list) { | |
|
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diff
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|
2844 assert(args->length() == arg_list->length(), |
|
7a302948f5a4
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|
2845 err_msg_res("args=%d, arg_list=%d", args->length(), arg_list->length())); |
|
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|
2846 for (int i = x->has_receiver() ? 1 : 0; i < args->length(); i++) { |
| 0 | 2847 LIRItem* param = args->at(i); |
| 2848 LIR_Opr loc = arg_list->at(i); | |
| 2849 if (loc->is_register()) { | |
| 2850 param->load_item_force(loc); | |
| 2851 } else { | |
| 2852 LIR_Address* addr = loc->as_address_ptr(); | |
| 2853 param->load_for_store(addr->type()); | |
| 2002 | 2854 if (addr->type() == T_OBJECT) { |
| 2855 __ move_wide(param->result(), addr); | |
| 2856 } else | |
| 2857 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
| 2858 __ unaligned_move(param->result(), addr); | |
| 2859 } else { | |
| 2860 __ move(param->result(), addr); | |
| 2861 } | |
| 0 | 2862 } |
| 2863 } | |
| 2864 | |
| 2865 if (x->has_receiver()) { | |
| 2866 LIRItem* receiver = args->at(0); | |
| 2867 LIR_Opr loc = arg_list->at(0); | |
| 2868 if (loc->is_register()) { | |
| 2869 receiver->load_item_force(loc); | |
| 2870 } else { | |
| 2871 assert(loc->is_address(), "just checking"); | |
| 2872 receiver->load_for_store(T_OBJECT); | |
| 2002 | 2873 __ move_wide(receiver->result(), loc->as_address_ptr()); |
| 0 | 2874 } |
| 2875 } | |
| 2876 } | |
| 2877 | |
| 2878 | |
| 2879 // Visits all arguments, returns appropriate items without loading them | |
| 2880 LIRItemList* LIRGenerator::invoke_visit_arguments(Invoke* x) { | |
| 2881 LIRItemList* argument_items = new LIRItemList(); | |
| 2882 if (x->has_receiver()) { | |
| 2883 LIRItem* receiver = new LIRItem(x->receiver(), this); | |
| 2884 argument_items->append(receiver); | |
| 2885 } | |
| 2886 for (int i = 0; i < x->number_of_arguments(); i++) { | |
| 2887 LIRItem* param = new LIRItem(x->argument_at(i), this); | |
| 2888 argument_items->append(param); | |
| 2889 } | |
| 2890 return argument_items; | |
| 2891 } | |
| 2892 | |
| 2893 | |
| 2894 // The invoke with receiver has following phases: | |
| 2895 // a) traverse and load/lock receiver; | |
| 2896 // b) traverse all arguments -> item-array (invoke_visit_argument) | |
| 2897 // c) push receiver on stack | |
| 2898 // d) load each of the items and push on stack | |
| 2899 // e) unlock receiver | |
| 2900 // f) move receiver into receiver-register %o0 | |
| 2901 // g) lock result registers and emit call operation | |
| 2902 // | |
| 2903 // Before issuing a call, we must spill-save all values on stack | |
| 2904 // that are in caller-save register. "spill-save" moves thos registers | |
| 2905 // either in a free callee-save register or spills them if no free | |
| 2906 // callee save register is available. | |
| 2907 // | |
| 2908 // The problem is where to invoke spill-save. | |
| 2909 // - if invoked between e) and f), we may lock callee save | |
| 2910 // register in "spill-save" that destroys the receiver register | |
| 2911 // before f) is executed | |
| 2912 // - if we rearange the f) to be earlier, by loading %o0, it | |
| 2913 // may destroy a value on the stack that is currently in %o0 | |
| 2914 // and is waiting to be spilled | |
| 2915 // - if we keep the receiver locked while doing spill-save, | |
| 2916 // we cannot spill it as it is spill-locked | |
| 2917 // | |
| 2918 void LIRGenerator::do_Invoke(Invoke* x) { | |
| 2919 CallingConvention* cc = frame_map()->java_calling_convention(x->signature(), true); | |
| 2920 | |
| 2921 LIR_OprList* arg_list = cc->args(); | |
| 2922 LIRItemList* args = invoke_visit_arguments(x); | |
| 2923 LIR_Opr receiver = LIR_OprFact::illegalOpr; | |
| 2924 | |
| 2925 // setup result register | |
| 2926 LIR_Opr result_register = LIR_OprFact::illegalOpr; | |
| 2927 if (x->type() != voidType) { | |
| 2928 result_register = result_register_for(x->type()); | |
| 2929 } | |
| 2930 | |
| 2931 CodeEmitInfo* info = state_for(x, x->state()); | |
| 2932 | |
| 2933 invoke_load_arguments(x, args, arg_list); | |
| 2934 | |
| 2935 if (x->has_receiver()) { | |
| 2936 args->at(0)->load_item_force(LIR_Assembler::receiverOpr()); | |
| 2937 receiver = args->at(0)->result(); | |
| 2938 } | |
| 2939 | |
| 2940 // emit invoke code | |
| 2941 bool optimized = x->target_is_loaded() && x->target_is_final(); | |
| 2942 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); | |
| 2943 | |
| 1564 | 2944 // JSR 292 |
| 2945 // Preserve the SP over MethodHandle call sites. | |
| 2946 ciMethod* target = x->target(); | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2947 bool is_method_handle_invoke = (// %%% FIXME: Are both of these relevant? |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2948 target->is_method_handle_intrinsic() || |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2949 target->is_compiled_lambda_form()); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
2950 if (is_method_handle_invoke) { |
| 1564 | 2951 info->set_is_method_handle_invoke(true); |
| 2952 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); | |
| 2953 } | |
| 2954 | |
| 0 | 2955 switch (x->code()) { |
| 2956 case Bytecodes::_invokestatic: | |
| 1564 | 2957 __ call_static(target, result_register, |
| 0 | 2958 SharedRuntime::get_resolve_static_call_stub(), |
| 2959 arg_list, info); | |
| 2960 break; | |
| 2961 case Bytecodes::_invokespecial: | |
| 2962 case Bytecodes::_invokevirtual: | |
| 2963 case Bytecodes::_invokeinterface: | |
| 2964 // for final target we still produce an inline cache, in order | |
| 2965 // to be able to call mixed mode | |
| 2966 if (x->code() == Bytecodes::_invokespecial || optimized) { | |
| 1564 | 2967 __ call_opt_virtual(target, receiver, result_register, |
| 0 | 2968 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
| 2969 arg_list, info); | |
| 2970 } else if (x->vtable_index() < 0) { | |
| 1564 | 2971 __ call_icvirtual(target, receiver, result_register, |
| 0 | 2972 SharedRuntime::get_resolve_virtual_call_stub(), |
| 2973 arg_list, info); | |
| 2974 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
2975 int entry_offset = InstanceKlass::vtable_start_offset() + x->vtable_index() * vtableEntry::size(); |
| 0 | 2976 int vtable_offset = entry_offset * wordSize + vtableEntry::method_offset_in_bytes(); |
| 1564 | 2977 __ call_virtual(target, receiver, result_register, vtable_offset, arg_list, info); |
| 0 | 2978 } |
| 2979 break; | |
| 1295 | 2980 case Bytecodes::_invokedynamic: { |
| 1564 | 2981 __ call_dynamic(target, receiver, result_register, |
|
6616
7a302948f5a4
7192167: JSR 292: C1 has old broken code which needs to be removed
twisti
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6615
diff
changeset
|
2982 SharedRuntime::get_resolve_static_call_stub(), |
| 1295 | 2983 arg_list, info); |
| 2984 break; | |
| 2985 } | |
| 0 | 2986 default: |
|
6145
e2fe93124108
7174928: JSR 292: unresolved invokedynamic call sites deopt and osr infinitely
twisti
parents:
6143
diff
changeset
|
2987 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
| 0 | 2988 break; |
| 2989 } | |
| 2990 | |
| 1564 | 2991 // JSR 292 |
| 2992 // Restore the SP after MethodHandle call sites. | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6145
diff
changeset
|
2993 if (is_method_handle_invoke) { |
| 1564 | 2994 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); |
| 2995 } | |
| 2996 | |
| 0 | 2997 if (x->type()->is_float() || x->type()->is_double()) { |
| 2998 // Force rounding of results from non-strictfp when in strictfp | |
| 2999 // scope (or when we don't know the strictness of the callee, to | |
| 3000 // be safe.) | |
| 3001 if (method()->is_strict()) { | |
| 3002 if (!x->target_is_loaded() || !x->target_is_strictfp()) { | |
| 3003 result_register = round_item(result_register); | |
| 3004 } | |
| 3005 } | |
| 3006 } | |
| 3007 | |
| 3008 if (result_register->is_valid()) { | |
| 3009 LIR_Opr result = rlock_result(x); | |
| 3010 __ move(result_register, result); | |
| 3011 } | |
| 3012 } | |
| 3013 | |
| 3014 | |
| 3015 void LIRGenerator::do_FPIntrinsics(Intrinsic* x) { | |
| 3016 assert(x->number_of_arguments() == 1, "wrong type"); | |
| 3017 LIRItem value (x->argument_at(0), this); | |
| 3018 LIR_Opr reg = rlock_result(x); | |
| 3019 value.load_item(); | |
| 3020 LIR_Opr tmp = force_to_spill(value.result(), as_BasicType(x->type())); | |
| 3021 __ move(tmp, reg); | |
| 3022 } | |
| 3023 | |
| 3024 | |
| 3025 | |
| 3026 // Code for : x->x() {x->cond()} x->y() ? x->tval() : x->fval() | |
| 3027 void LIRGenerator::do_IfOp(IfOp* x) { | |
| 3028 #ifdef ASSERT | |
| 3029 { | |
| 3030 ValueTag xtag = x->x()->type()->tag(); | |
| 3031 ValueTag ttag = x->tval()->type()->tag(); | |
| 3032 assert(xtag == intTag || xtag == objectTag, "cannot handle others"); | |
| 3033 assert(ttag == addressTag || ttag == intTag || ttag == objectTag || ttag == longTag, "cannot handle others"); | |
| 3034 assert(ttag == x->fval()->type()->tag(), "cannot handle others"); | |
| 3035 } | |
| 3036 #endif | |
| 3037 | |
| 3038 LIRItem left(x->x(), this); | |
| 3039 LIRItem right(x->y(), this); | |
| 3040 left.load_item(); | |
| 3041 if (can_inline_as_constant(right.value())) { | |
| 3042 right.dont_load_item(); | |
| 3043 } else { | |
| 3044 right.load_item(); | |
| 3045 } | |
| 3046 | |
| 3047 LIRItem t_val(x->tval(), this); | |
| 3048 LIRItem f_val(x->fval(), this); | |
| 3049 t_val.dont_load_item(); | |
| 3050 f_val.dont_load_item(); | |
| 3051 LIR_Opr reg = rlock_result(x); | |
| 3052 | |
| 3053 __ cmp(lir_cond(x->cond()), left.result(), right.result()); | |
|
2089
037c727f35fb
7009231: C1: Incorrect CAS code for longs on SPARC 32bit
iveresov
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2007
diff
changeset
|
3054 __ cmove(lir_cond(x->cond()), t_val.result(), f_val.result(), reg, as_BasicType(x->x()->type())); |
| 0 | 3055 } |
| 3056 | |
|
6006
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diff
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|
3057 void LIRGenerator::do_RuntimeCall(address routine, int expected_arguments, Intrinsic* x) { |
|
0105f367a14c
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diff
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|
3058 assert(x->number_of_arguments() == expected_arguments, "wrong type"); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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diff
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|
3059 LIR_Opr reg = result_register_for(x->type()); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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diff
changeset
|
3060 __ call_runtime_leaf(routine, getThreadTemp(), |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3061 reg, new LIR_OprList()); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3062 LIR_Opr result = rlock_result(x); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3063 __ move(reg, result); |
|
0105f367a14c
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diff
changeset
|
3064 } |
|
0105f367a14c
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rbackman
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4966
diff
changeset
|
3065 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3066 #ifdef TRACE_HAVE_INTRINSICS |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3067 void LIRGenerator::do_ThreadIDIntrinsic(Intrinsic* x) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3068 LIR_Opr thread = getThreadPointer(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3069 LIR_Opr osthread = new_pointer_register(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3070 __ move(new LIR_Address(thread, in_bytes(JavaThread::osthread_offset()), osthread->type()), osthread); |
|
0105f367a14c
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4966
diff
changeset
|
3071 size_t thread_id_size = OSThread::thread_id_size(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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diff
changeset
|
3072 if (thread_id_size == (size_t) BytesPerLong) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3073 LIR_Opr id = new_register(T_LONG); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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4966
diff
changeset
|
3074 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_LONG), id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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diff
changeset
|
3075 __ convert(Bytecodes::_l2i, id, rlock_result(x)); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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4966
diff
changeset
|
3076 } else if (thread_id_size == (size_t) BytesPerInt) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3077 __ move(new LIR_Address(osthread, in_bytes(OSThread::thread_id_offset()), T_INT), rlock_result(x)); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3078 } else { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3079 ShouldNotReachHere(); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3080 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3081 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3082 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3083 void LIRGenerator::do_ClassIDIntrinsic(Intrinsic* x) { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3084 CodeEmitInfo* info = state_for(x); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3085 CodeEmitInfo* info2 = new CodeEmitInfo(info); // Clone for the second null check |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3086 BasicType klass_pointer_type = NOT_LP64(T_INT) LP64_ONLY(T_LONG); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3087 assert(info != NULL, "must have info"); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3088 LIRItem arg(x->argument_at(1), this); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3089 arg.load_item(); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3090 LIR_Opr klass = new_pointer_register(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3091 __ move(new LIR_Address(arg.result(), java_lang_Class::klass_offset_in_bytes(), klass_pointer_type), klass, info); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3092 LIR_Opr id = new_register(T_LONG); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3093 ByteSize offset = TRACE_ID_OFFSET; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3094 LIR_Address* trace_id_addr = new LIR_Address(klass, in_bytes(offset), T_LONG); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3095 __ move(trace_id_addr, id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3096 __ logical_or(id, LIR_OprFact::longConst(0x01l), id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3097 __ store(id, trace_id_addr); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3098 __ logical_and(id, LIR_OprFact::longConst(~0x3l), id); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3099 __ move(id, rlock_result(x)); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3100 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3101 #endif |
| 0 | 3102 |
| 3103 void LIRGenerator::do_Intrinsic(Intrinsic* x) { | |
| 3104 switch (x->id()) { | |
| 3105 case vmIntrinsics::_intBitsToFloat : | |
| 3106 case vmIntrinsics::_doubleToRawLongBits : | |
| 3107 case vmIntrinsics::_longBitsToDouble : | |
| 3108 case vmIntrinsics::_floatToRawIntBits : { | |
| 3109 do_FPIntrinsics(x); | |
| 3110 break; | |
| 3111 } | |
| 3112 | |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3113 #ifdef TRACE_HAVE_INTRINSICS |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3114 case vmIntrinsics::_threadID: do_ThreadIDIntrinsic(x); break; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3115 case vmIntrinsics::_classID: do_ClassIDIntrinsic(x); break; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3116 case vmIntrinsics::_counterTime: |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3117 do_RuntimeCall(CAST_FROM_FN_PTR(address, TRACE_TIME_METHOD), 0, x); |
| 0 | 3118 break; |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3119 #endif |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3120 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3121 case vmIntrinsics::_currentTimeMillis: |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3122 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeMillis), 0, x); |
| 0 | 3123 break; |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3124 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3125 case vmIntrinsics::_nanoTime: |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3126 do_RuntimeCall(CAST_FROM_FN_PTR(address, os::javaTimeNanos), 0, x); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
4966
diff
changeset
|
3127 break; |
| 0 | 3128 |
| 3129 case vmIntrinsics::_Object_init: do_RegisterFinalizer(x); break; | |
| 6135 | 3130 case vmIntrinsics::_isInstance: do_isInstance(x); break; |
| 0 | 3131 case vmIntrinsics::_getClass: do_getClass(x); break; |
| 3132 case vmIntrinsics::_currentThread: do_currentThread(x); break; | |
| 3133 | |
| 3134 case vmIntrinsics::_dlog: // fall through | |
| 3135 case vmIntrinsics::_dlog10: // fall through | |
| 3136 case vmIntrinsics::_dabs: // fall through | |
| 3137 case vmIntrinsics::_dsqrt: // fall through | |
| 3138 case vmIntrinsics::_dtan: // fall through | |
| 3139 case vmIntrinsics::_dsin : // fall through | |
|
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3140 case vmIntrinsics::_dcos : // fall through |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3141 case vmIntrinsics::_dexp : // fall through |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
6006
diff
changeset
|
3142 case vmIntrinsics::_dpow : do_MathIntrinsic(x); break; |
| 0 | 3143 case vmIntrinsics::_arraycopy: do_ArrayCopy(x); break; |
| 3144 | |
| 3145 // java.nio.Buffer.checkIndex | |
| 3146 case vmIntrinsics::_checkIndex: do_NIOCheckIndex(x); break; | |
| 3147 | |
| 3148 case vmIntrinsics::_compareAndSwapObject: | |
| 3149 do_CompareAndSwap(x, objectType); | |
| 3150 break; | |
| 3151 case vmIntrinsics::_compareAndSwapInt: | |
| 3152 do_CompareAndSwap(x, intType); | |
| 3153 break; | |
| 3154 case vmIntrinsics::_compareAndSwapLong: | |
| 3155 do_CompareAndSwap(x, longType); | |
| 3156 break; | |
| 3157 | |
| 7425 | 3158 case vmIntrinsics::_loadFence : |
| 3159 if (os::is_MP()) __ membar_acquire(); | |
| 3160 break; | |
| 3161 case vmIntrinsics::_storeFence: | |
| 3162 if (os::is_MP()) __ membar_release(); | |
| 3163 break; | |
| 3164 case vmIntrinsics::_fullFence : | |
| 3165 if (os::is_MP()) __ membar(); | |
| 3166 break; | |
| 3167 | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3168 case vmIntrinsics::_Reference_get: |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3169 do_Reference_get(x); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3170 break; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2357
diff
changeset
|
3171 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3172 case vmIntrinsics::_updateCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3173 case vmIntrinsics::_updateBytesCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3174 case vmIntrinsics::_updateByteBufferCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3175 do_update_CRC32(x); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3176 break; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10397
diff
changeset
|
3177 |
| 0 | 3178 default: ShouldNotReachHere(); break; |
| 3179 } | |
| 3180 } | |
| 3181 | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3182 void LIRGenerator::profile_arguments(ProfileCall* x) { |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3183 if (compilation()->profile_arguments()) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3184 int bci = x->bci_of_invoke(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3185 ciMethodData* md = x->method()->method_data_or_null(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3186 ciProfileData* data = md->bci_to_data(bci); |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3187 if ((data->is_CallTypeData() && data->as_CallTypeData()->has_arguments()) || |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3188 (data->is_VirtualCallTypeData() && data->as_VirtualCallTypeData()->has_arguments())) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3189 ByteSize extra = data->is_CallTypeData() ? CallTypeData::args_data_offset() : VirtualCallTypeData::args_data_offset(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3190 int base_offset = md->byte_offset_of_slot(data, extra); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3191 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3192 ciTypeStackSlotEntries* args = data->is_CallTypeData() ? ((ciCallTypeData*)data)->args() : ((ciVirtualCallTypeData*)data)->args(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3193 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3194 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3195 int start = 0; |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3196 int stop = data->is_CallTypeData() ? ((ciCallTypeData*)data)->number_of_arguments() : ((ciVirtualCallTypeData*)data)->number_of_arguments(); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3197 if (x->inlined() && x->callee()->is_static() && Bytecodes::has_receiver(bc)) { |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3198 // first argument is not profiled at call (method handle invoke) |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3199 assert(x->method()->raw_code_at_bci(bci) == Bytecodes::_invokehandle, "invokehandle expected"); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3200 start = 1; |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3201 } |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3202 ciSignature* callee_signature = x->callee()->signature(); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3203 // method handle call to virtual method |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3204 bool has_receiver = x->inlined() && !x->callee()->is_static() && !Bytecodes::has_receiver(bc); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3205 ciSignatureStream callee_signature_stream(callee_signature, has_receiver ? x->callee()->holder() : NULL); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3206 |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3207 bool ignored_will_link; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3208 ciSignature* signature_at_call = NULL; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3209 x->method()->get_method_at_bci(bci, ignored_will_link, &signature_at_call); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3210 ciSignatureStream signature_at_call_stream(signature_at_call); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3211 |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3212 // if called through method handle invoke, some arguments may have been popped |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3213 for (int i = 0; i < stop && i+start < x->nb_profiled_args(); i++) { |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3214 int off = in_bytes(TypeEntriesAtCall::argument_type_offset(i)) - in_bytes(TypeEntriesAtCall::args_data_offset()); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3215 ciKlass* exact = profile_type(md, base_offset, off, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3216 args->type(i), x->profiled_arg_at(i+start), mdp, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3217 !x->arg_needs_null_check(i+start), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3218 signature_at_call_stream.next_klass(), callee_signature_stream.next_klass()); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3219 if (exact != NULL) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3220 md->set_argument_type(bci, i, exact); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3221 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3222 } |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3223 } else { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3224 #ifdef ASSERT |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3225 Bytecodes::Code code = x->method()->raw_code_at_bci(x->bci_of_invoke()); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3226 int n = x->nb_profiled_args(); |
|
17900
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
17628
diff
changeset
|
3227 assert(MethodData::profile_parameters() && (MethodData::profile_arguments_jsr292_only() || |
|
ce9fd31ffd14
8039975: SIGSEGV in MethodData::next_data(ProfileData*)
roland
parents:
17628
diff
changeset
|
3228 (x->inlined() && ((code == Bytecodes::_invokedynamic && n <= 1) || (code == Bytecodes::_invokehandle && n <= 2)))), |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3229 "only at JSR292 bytecodes"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3230 #endif |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3231 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3232 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3233 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3234 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3235 // profile parameters on entry to an inlined method |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3236 void LIRGenerator::profile_parameters_at_call(ProfileCall* x) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3237 if (compilation()->profile_parameters() && x->inlined()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3238 ciMethodData* md = x->callee()->method_data_or_null(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3239 if (md != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3240 ciParametersTypeData* parameters_type_data = md->parameters_type_data(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3241 if (parameters_type_data != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3242 ciTypeStackSlotEntries* parameters = parameters_type_data->parameters(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3243 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3244 bool has_receiver = !x->callee()->is_static(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3245 ciSignature* sig = x->callee()->signature(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3246 ciSignatureStream sig_stream(sig, has_receiver ? x->callee()->holder() : NULL); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3247 int i = 0; // to iterate on the Instructions |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3248 Value arg = x->recv(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3249 bool not_null = false; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3250 int bci = x->bci_of_invoke(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3251 Bytecodes::Code bc = x->method()->java_code_at_bci(bci); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3252 // The first parameter is the receiver so that's what we start |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3253 // with if it exists. One exception is method handle call to |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3254 // virtual method: the receiver is in the args list |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3255 if (arg == NULL || !Bytecodes::has_receiver(bc)) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3256 i = 1; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3257 arg = x->profiled_arg_at(0); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3258 not_null = !x->arg_needs_null_check(0); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3259 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3260 int k = 0; // to iterate on the profile data |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3261 for (;;) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3262 intptr_t profiled_k = parameters->type(k); |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3263 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(parameters_type_data, ParametersTypeData::type_offset(0)), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3264 in_bytes(ParametersTypeData::type_offset(k)) - in_bytes(ParametersTypeData::type_offset(0)), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3265 profiled_k, arg, mdp, not_null, sig_stream.next_klass(), NULL); |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3266 // If the profile is known statically set it once for all and do not emit any code |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3267 if (exact != NULL) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3268 md->set_parameter_type(k, exact); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3269 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3270 k++; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3271 if (k >= parameters_type_data->number_of_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3272 #ifdef ASSERT |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3273 int extra = 0; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3274 if (MethodData::profile_arguments() && TypeProfileParmsLimit != -1 && |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3275 x->nb_profiled_args() >= TypeProfileParmsLimit && |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3276 x->recv() != NULL && Bytecodes::has_receiver(bc)) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3277 extra += 1; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3278 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3279 assert(i == x->nb_profiled_args() - extra || (TypeProfileParmsLimit != -1 && TypeProfileArgsLimit > TypeProfileParmsLimit), "unused parameters?"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3280 #endif |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3281 break; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3282 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3283 arg = x->profiled_arg_at(i); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3284 not_null = !x->arg_needs_null_check(i); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3285 i++; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3286 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3287 } |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3288 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3289 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3290 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3291 |
| 0 | 3292 void LIRGenerator::do_ProfileCall(ProfileCall* x) { |
| 3293 // Need recv in a temporary register so it interferes with the other temporaries | |
| 3294 LIR_Opr recv = LIR_OprFact::illegalOpr; | |
| 3295 LIR_Opr mdo = new_register(T_OBJECT); | |
| 1783 | 3296 // tmp is used to hold the counters on SPARC |
| 3297 LIR_Opr tmp = new_pointer_register(); | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3298 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3299 if (x->nb_profiled_args() > 0) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3300 profile_arguments(x); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3301 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
12868
diff
changeset
|
3302 |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3303 // profile parameters on inlined method entry including receiver |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3304 if (x->recv() != NULL || x->nb_profiled_args() > 0) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3305 profile_parameters_at_call(x); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3306 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12955
diff
changeset
|
3307 |
| 0 | 3308 if (x->recv() != NULL) { |
| 3309 LIRItem value(x->recv(), this); | |
| 3310 value.load_item(); | |
| 3311 recv = new_register(T_OBJECT); | |
| 3312 __ move(value.result(), recv); | |
| 3313 } | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6145
diff
changeset
|
3314 __ profile_call(x->method(), x->bci_of_invoke(), x->callee(), mdo, recv, tmp, x->known_holder()); |
| 0 | 3315 } |
| 3316 | |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3317 void LIRGenerator::do_ProfileReturnType(ProfileReturnType* x) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3318 int bci = x->bci_of_invoke(); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3319 ciMethodData* md = x->method()->method_data_or_null(); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3320 ciProfileData* data = md->bci_to_data(bci); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3321 assert(data->is_CallTypeData() || data->is_VirtualCallTypeData(), "wrong profile data type"); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3322 ciReturnTypeEntry* ret = data->is_CallTypeData() ? ((ciCallTypeData*)data)->ret() : ((ciVirtualCallTypeData*)data)->ret(); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3323 LIR_Opr mdp = LIR_OprFact::illegalOpr; |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3324 |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3325 bool ignored_will_link; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3326 ciSignature* signature_at_call = NULL; |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3327 x->method()->get_method_at_bci(bci, ignored_will_link, &signature_at_call); |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3328 |
| 17628 | 3329 // The offset within the MDO of the entry to update may be too large |
| 3330 // to be used in load/store instructions on some platforms. So have | |
| 3331 // profile_type() compute the address of the profile in a register. | |
| 3332 ciKlass* exact = profile_type(md, md->byte_offset_of_slot(data, ret->type_offset()), 0, | |
|
13078
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3333 ret->type(), x->ret(), mdp, |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3334 !x->needs_null_check(), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3335 signature_at_call->return_type()->as_klass(), |
|
e6ba215af802
8027631: "unexpected profiling mismatch" error with new type profiling
roland
parents:
12969
diff
changeset
|
3336 x->callee()->signature()->return_type()->as_klass()); |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3337 if (exact != NULL) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3338 md->set_return_type(bci, exact); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3339 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3340 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
3341 |
| 1783 | 3342 void LIRGenerator::do_ProfileInvoke(ProfileInvoke* x) { |
| 3343 // We can safely ignore accessors here, since c2 will inline them anyway, | |
| 3344 // accessors are also always mature. | |
| 3345 if (!x->inlinee()->is_accessor()) { | |
| 3346 CodeEmitInfo* info = state_for(x, x->state(), true); | |
|
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3347 // Notify the runtime very infrequently only to take care of counter overflows |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3756
diff
changeset
|
3348 increment_event_counter_impl(info, x->inlinee(), (1 << Tier23InlineeNotifyFreqLog) - 1, InvocationEntryBci, false, true); |
| 1783 | 3349 } |
| 3350 } | |
| 3351 | |
| 3352 void LIRGenerator::increment_event_counter(CodeEmitInfo* info, int bci, bool backedge) { | |
| 3353 int freq_log; | |
| 3354 int level = compilation()->env()->comp_level(); | |
| 3355 if (level == CompLevel_limited_profile) { | |
| 3356 freq_log = (backedge ? Tier2BackedgeNotifyFreqLog : Tier2InvokeNotifyFreqLog); | |
| 3357 } else if (level == CompLevel_full_profile) { | |
| 3358 freq_log = (backedge ? Tier3BackedgeNotifyFreqLog : Tier3InvokeNotifyFreqLog); | |
| 3359 } else { | |
| 3360 ShouldNotReachHere(); | |
| 3361 } | |
| 3362 // Increment the appropriate invocation/backedge counter and notify the runtime. | |
| 3363 increment_event_counter_impl(info, info->scope()->method(), (1 << freq_log) - 1, bci, backedge, true); | |
| 0 | 3364 } |
| 3365 | |
| 1783 | 3366 void LIRGenerator::increment_event_counter_impl(CodeEmitInfo* info, |
| 3367 ciMethod *method, int frequency, | |
| 3368 int bci, bool backedge, bool notify) { | |
| 3369 assert(frequency == 0 || is_power_of_2(frequency + 1), "Frequency must be x^2 - 1 or 0"); | |
| 3370 int level = _compilation->env()->comp_level(); | |
| 3371 assert(level > CompLevel_simple, "Shouldn't be here"); | |
| 3372 | |
| 3373 int offset = -1; | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3374 LIR_Opr counter_holder; |
| 1783 | 3375 if (level == CompLevel_limited_profile) { |
|
12868
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3376 MethodCounters* counters_adr = method->ensure_method_counters(); |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3377 if (counters_adr == NULL) { |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3378 bailout("method counters allocation failed"); |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3379 return; |
|
c775af091fe9
8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
twisti
parents:
12000
diff
changeset
|
3380 } |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3381 counter_holder = new_pointer_register(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3382 __ move(LIR_OprFact::intptrConst(counters_adr), counter_holder); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3383 offset = in_bytes(backedge ? MethodCounters::backedge_counter_offset() : |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3384 MethodCounters::invocation_counter_offset()); |
| 1783 | 3385 } else if (level == CompLevel_full_profile) { |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3386 counter_holder = new_register(T_METADATA); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3387 offset = in_bytes(backedge ? MethodData::backedge_counter_offset() : |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6616
diff
changeset
|
3388 MethodData::invocation_counter_offset()); |
|
2007
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3389 ciMethodData* md = method->method_data_or_null(); |
|
5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
iveresov
parents:
2002
diff
changeset
|
3390 assert(md != NULL, "Sanity"); |
|
6739
8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
roland
parents:
6731
diff
changeset
|
3391 __ metadata2reg(md->constant_encoding(), counter_holder); |
| 1783 | 3392 } else { |
| 3393 ShouldNotReachHere(); | |
| 3394 } | |
| 3395 LIR_Address* counter = new LIR_Address(counter_holder, offset, T_INT); | |
| 3396 LIR_Opr result = new_register(T_INT); | |
| 3397 __ load(counter, result); | |
| 3398 __ add(result, LIR_OprFact::intConst(InvocationCounter::count_increment), result); | |
| 3399 __ store(result, counter); | |
| 3400 if (notify) { | |
| 3401 LIR_Opr mask = load_immediate(frequency << InvocationCounter::count_shift, T_INT); | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3402 LIR_Opr meth = new_register(T_METADATA); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8869
diff
changeset
|
3403 __ metadata2reg(method->constant_encoding(), meth); |
| 1783 | 3404 __ logical_and(result, mask, result); |
| 3405 __ cmp(lir_cond_equal, result, LIR_OprFact::intConst(0)); | |
| 3406 // The bci for info can point to cmp for if's we want the if bci | |
| 3407 CodeStub* overflow = new CounterOverflowStub(info, bci, meth); | |
| 3408 __ branch(lir_cond_equal, T_INT, overflow); | |
| 3409 __ branch_destination(overflow->continuation()); | |
| 3410 } | |
| 3411 } | |
| 0 | 3412 |
|
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3413 void LIRGenerator::do_RuntimeCall(RuntimeCall* x) { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3414 LIR_OprList* args = new LIR_OprList(x->number_of_arguments()); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3415 BasicTypeList* signature = new BasicTypeList(x->number_of_arguments()); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3416 |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3417 if (x->pass_thread()) { |
|
12969
9acbfe04b5c3
8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
iveresov
parents:
12962
diff
changeset
|
3418 signature->append(LP64_ONLY(T_LONG) NOT_LP64(T_INT)); // thread |
|
2166
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3419 args->append(getThreadPointer()); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3420 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3421 |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3422 for (int i = 0; i < x->number_of_arguments(); i++) { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3423 Value a = x->argument_at(i); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3424 LIRItem* item = new LIRItem(a, this); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3425 item->load_item(); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3426 args->append(item->result()); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3427 signature->append(as_BasicType(a->type())); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3428 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3429 |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3430 LIR_Opr result = call_runtime(signature, args, x->entry(), x->type(), NULL); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3431 if (x->type() == voidType) { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3432 set_no_result(x); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3433 } else { |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3434 __ move(result, rlock_result(x)); |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3435 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3436 } |
|
403dc4c1d7f5
6809483: hotspot:::method_entry are not correctly generated for "method()V"
never
parents:
2089
diff
changeset
|
3437 |
|
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3438 #ifdef ASSERT |
| 8860 | 3439 void LIRGenerator::do_Assert(Assert *x) { |
| 3440 ValueTag tag = x->x()->type()->tag(); | |
| 3441 If::Condition cond = x->cond(); | |
| 3442 | |
| 3443 LIRItem xitem(x->x(), this); | |
| 3444 LIRItem yitem(x->y(), this); | |
| 3445 LIRItem* xin = &xitem; | |
| 3446 LIRItem* yin = &yitem; | |
| 3447 | |
| 3448 assert(tag == intTag, "Only integer assertions are valid!"); | |
| 3449 | |
| 3450 xin->load_item(); | |
| 3451 yin->dont_load_item(); | |
| 3452 | |
| 3453 set_no_result(x); | |
| 3454 | |
| 3455 LIR_Opr left = xin->result(); | |
| 3456 LIR_Opr right = yin->result(); | |
| 3457 | |
| 3458 __ lir_assert(lir_cond(x->cond()), left, right, x->message(), true); | |
|
9156
acadb114c818
8011648: C1: optimized build is broken after 7153771
roland
parents:
9062
diff
changeset
|
3459 } |
| 8860 | 3460 #endif |
| 3461 | |
| 3462 void LIRGenerator::do_RangeCheckPredicate(RangeCheckPredicate *x) { | |
| 3463 | |
| 3464 | |
| 3465 Instruction *a = x->x(); | |
| 3466 Instruction *b = x->y(); | |
| 3467 if (!a || StressRangeCheckElimination) { | |
| 3468 assert(!b || StressRangeCheckElimination, "B must also be null"); | |
| 3469 | |
| 3470 CodeEmitInfo *info = state_for(x, x->state()); | |
| 3471 CodeStub* stub = new PredicateFailedStub(info); | |
| 3472 | |
| 3473 __ jump(stub); | |
| 3474 } else if (a->type()->as_IntConstant() && b->type()->as_IntConstant()) { | |
| 3475 int a_int = a->type()->as_IntConstant()->value(); | |
| 3476 int b_int = b->type()->as_IntConstant()->value(); | |
| 3477 | |
| 3478 bool ok = false; | |
| 3479 | |
| 3480 switch(x->cond()) { | |
| 3481 case Instruction::eql: ok = (a_int == b_int); break; | |
| 3482 case Instruction::neq: ok = (a_int != b_int); break; | |
| 3483 case Instruction::lss: ok = (a_int < b_int); break; | |
| 3484 case Instruction::leq: ok = (a_int <= b_int); break; | |
| 3485 case Instruction::gtr: ok = (a_int > b_int); break; | |
| 3486 case Instruction::geq: ok = (a_int >= b_int); break; | |
| 3487 case Instruction::aeq: ok = ((unsigned int)a_int >= (unsigned int)b_int); break; | |
| 3488 case Instruction::beq: ok = ((unsigned int)a_int <= (unsigned int)b_int); break; | |
| 3489 default: ShouldNotReachHere(); | |
| 3490 } | |
| 3491 | |
| 3492 if (ok) { | |
| 3493 | |
| 3494 CodeEmitInfo *info = state_for(x, x->state()); | |
| 3495 CodeStub* stub = new PredicateFailedStub(info); | |
| 3496 | |
| 3497 __ jump(stub); | |
| 3498 } | |
| 3499 } else { | |
| 3500 | |
| 3501 ValueTag tag = x->x()->type()->tag(); | |
| 3502 If::Condition cond = x->cond(); | |
| 3503 LIRItem xitem(x->x(), this); | |
| 3504 LIRItem yitem(x->y(), this); | |
| 3505 LIRItem* xin = &xitem; | |
| 3506 LIRItem* yin = &yitem; | |
| 3507 | |
| 3508 assert(tag == intTag, "Only integer deoptimizations are valid!"); | |
| 3509 | |
| 3510 xin->load_item(); | |
| 3511 yin->dont_load_item(); | |
| 3512 set_no_result(x); | |
| 3513 | |
| 3514 LIR_Opr left = xin->result(); | |
| 3515 LIR_Opr right = yin->result(); | |
| 3516 | |
| 3517 CodeEmitInfo *info = state_for(x, x->state()); | |
| 3518 CodeStub* stub = new PredicateFailedStub(info); | |
| 3519 | |
| 3520 __ cmp(lir_cond(cond), left, right); | |
| 3521 __ branch(lir_cond(cond), right->type(), stub); | |
| 3522 } | |
| 3523 } | |
| 3524 | |
| 3525 | |
| 0 | 3526 LIR_Opr LIRGenerator::call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info) { |
| 3527 LIRItemList args(1); | |
| 3528 LIRItem value(arg1, this); | |
| 3529 args.append(&value); | |
| 3530 BasicTypeList signature; | |
| 3531 signature.append(as_BasicType(arg1->type())); | |
| 3532 | |
| 3533 return call_runtime(&signature, &args, entry, result_type, info); | |
| 3534 } | |
| 3535 | |
| 3536 | |
| 3537 LIR_Opr LIRGenerator::call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info) { | |
| 3538 LIRItemList args(2); | |
| 3539 LIRItem value1(arg1, this); | |
| 3540 LIRItem value2(arg2, this); | |
| 3541 args.append(&value1); | |
| 3542 args.append(&value2); | |
| 3543 BasicTypeList signature; | |
| 3544 signature.append(as_BasicType(arg1->type())); | |
| 3545 signature.append(as_BasicType(arg2->type())); | |
| 3546 | |
| 3547 return call_runtime(&signature, &args, entry, result_type, info); | |
| 3548 } | |
| 3549 | |
| 3550 | |
| 3551 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIR_OprList* args, | |
| 3552 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
| 3553 // get a result register | |
| 3554 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
| 3555 LIR_Opr result = LIR_OprFact::illegalOpr; | |
| 3556 if (result_type->tag() != voidTag) { | |
| 3557 result = new_register(result_type); | |
| 3558 phys_reg = result_register_for(result_type); | |
| 3559 } | |
| 3560 | |
| 3561 // move the arguments into the correct location | |
| 3562 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
| 3563 assert(cc->length() == args->length(), "argument mismatch"); | |
| 3564 for (int i = 0; i < args->length(); i++) { | |
| 3565 LIR_Opr arg = args->at(i); | |
| 3566 LIR_Opr loc = cc->at(i); | |
| 3567 if (loc->is_register()) { | |
| 3568 __ move(arg, loc); | |
| 3569 } else { | |
| 3570 LIR_Address* addr = loc->as_address_ptr(); | |
| 3571 // if (!can_store_as_constant(arg)) { | |
| 3572 // LIR_Opr tmp = new_register(arg->type()); | |
| 3573 // __ move(arg, tmp); | |
| 3574 // arg = tmp; | |
| 3575 // } | |
| 3576 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
| 3577 __ unaligned_move(arg, addr); | |
| 3578 } else { | |
| 3579 __ move(arg, addr); | |
| 3580 } | |
| 3581 } | |
| 3582 } | |
| 3583 | |
| 3584 if (info) { | |
| 3585 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
| 3586 } else { | |
| 3587 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
| 3588 } | |
| 3589 if (result->is_valid()) { | |
| 3590 __ move(phys_reg, result); | |
| 3591 } | |
| 3592 return result; | |
| 3593 } | |
| 3594 | |
| 3595 | |
| 3596 LIR_Opr LIRGenerator::call_runtime(BasicTypeArray* signature, LIRItemList* args, | |
| 3597 address entry, ValueType* result_type, CodeEmitInfo* info) { | |
| 3598 // get a result register | |
| 3599 LIR_Opr phys_reg = LIR_OprFact::illegalOpr; | |
| 3600 LIR_Opr result = LIR_OprFact::illegalOpr; | |
| 3601 if (result_type->tag() != voidTag) { | |
| 3602 result = new_register(result_type); | |
| 3603 phys_reg = result_register_for(result_type); | |
| 3604 } | |
| 3605 | |
| 3606 // move the arguments into the correct location | |
| 3607 CallingConvention* cc = frame_map()->c_calling_convention(signature); | |
| 3608 | |
| 3609 assert(cc->length() == args->length(), "argument mismatch"); | |
| 3610 for (int i = 0; i < args->length(); i++) { | |
| 3611 LIRItem* arg = args->at(i); | |
| 3612 LIR_Opr loc = cc->at(i); | |
| 3613 if (loc->is_register()) { | |
| 3614 arg->load_item_force(loc); | |
| 3615 } else { | |
| 3616 LIR_Address* addr = loc->as_address_ptr(); | |
| 3617 arg->load_for_store(addr->type()); | |
| 3618 if (addr->type() == T_LONG || addr->type() == T_DOUBLE) { | |
| 3619 __ unaligned_move(arg->result(), addr); | |
| 3620 } else { | |
| 3621 __ move(arg->result(), addr); | |
| 3622 } | |
| 3623 } | |
| 3624 } | |
| 3625 | |
| 3626 if (info) { | |
| 3627 __ call_runtime(entry, getThreadTemp(), phys_reg, cc->args(), info); | |
| 3628 } else { | |
| 3629 __ call_runtime_leaf(entry, getThreadTemp(), phys_reg, cc->args()); | |
| 3630 } | |
| 3631 if (result->is_valid()) { | |
| 3632 __ move(phys_reg, result); | |
| 3633 } | |
| 3634 return result; | |
| 3635 } | |
|
4966
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3636 |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3637 void LIRGenerator::do_MemBar(MemBar* x) { |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3638 if (os::is_MP()) { |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3639 LIR_Code code = x->code(); |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3640 switch(code) { |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3641 case lir_membar_acquire : __ membar_acquire(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3642 case lir_membar_release : __ membar_release(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3643 case lir_membar : __ membar(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3644 case lir_membar_loadload : __ membar_loadload(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3645 case lir_membar_storestore: __ membar_storestore(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3646 case lir_membar_loadstore : __ membar_loadstore(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3647 case lir_membar_storeload : __ membar_storeload(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3648 default : ShouldNotReachHere(); break; |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3649 } |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3650 } |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4816
diff
changeset
|
3651 } |