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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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112 __ ldm(ia_w, sp, fp.bit() | lr.bit()); | 112 __ ldm(ia_w, sp, fp.bit() | lr.bit()); |
113 int num_parameters = function_->scope()->num_parameters(); | 113 int num_parameters = function_->scope()->num_parameters(); |
114 __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize)); | 114 __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize)); |
115 __ Jump(lr); | 115 __ Jump(lr); |
116 } | 116 } |
117 } | 117 } |
118 | 118 |
119 | 119 |
120 void FastCodeGenerator::Move(Location destination, Slot* source) { | 120 void FastCodeGenerator::Move(Location destination, Slot* source) { |
121 switch (destination.type()) { | 121 switch (destination.type()) { |
122 case Location::UNINITIALIZED: | 122 case Location::kUninitialized: |
123 UNREACHABLE(); | 123 UNREACHABLE(); |
124 case Location::EFFECT: | 124 case Location::kEffect: |
125 break; | 125 break; |
126 case Location::VALUE: | 126 case Location::kValue: |
127 __ ldr(ip, MemOperand(fp, SlotOffset(source))); | 127 __ ldr(ip, MemOperand(fp, SlotOffset(source))); |
128 __ push(ip); | 128 __ push(ip); |
129 break; | 129 break; |
130 } | 130 } |
131 } | 131 } |
132 | 132 |
133 | 133 |
134 void FastCodeGenerator::Move(Location destination, Literal* expr) { | 134 void FastCodeGenerator::Move(Location destination, Literal* expr) { |
135 switch (destination.type()) { | 135 switch (destination.type()) { |
136 case Location::UNINITIALIZED: | 136 case Location::kUninitialized: |
137 UNREACHABLE(); | 137 UNREACHABLE(); |
138 case Location::EFFECT: | 138 case Location::kEffect: |
139 break; | 139 break; |
140 case Location::VALUE: | 140 case Location::kValue: |
141 __ mov(ip, Operand(expr->handle())); | 141 __ mov(ip, Operand(expr->handle())); |
142 __ push(ip); | 142 __ push(ip); |
143 break; | 143 break; |
144 } | 144 } |
145 } | 145 } |
146 | 146 |
147 | 147 |
148 void FastCodeGenerator::Move(Slot* destination, Location source) { | 148 void FastCodeGenerator::Move(Slot* destination, Location source) { |
149 switch (source.type()) { | 149 switch (source.type()) { |
150 case Location::UNINITIALIZED: // Fall through. | 150 case Location::kUninitialized: // Fall through. |
151 case Location::EFFECT: | 151 case Location::kEffect: |
152 UNREACHABLE(); | 152 UNREACHABLE(); |
153 case Location::VALUE: | 153 case Location::kValue: |
154 __ pop(ip); | 154 __ pop(ip); |
155 __ str(ip, MemOperand(fp, SlotOffset(destination))); | 155 __ str(ip, MemOperand(fp, SlotOffset(destination))); |
156 break; | 156 break; |
157 } | 157 } |
158 } | 158 } |
159 | 159 |
160 | 160 |
161 void FastCodeGenerator::DropAndMove(Location destination, Register source) { | 161 void FastCodeGenerator::DropAndMove(Location destination, Register source) { |
162 switch (destination.type()) { | 162 switch (destination.type()) { |
163 case Location::UNINITIALIZED: | 163 case Location::kUninitialized: |
164 UNREACHABLE(); | 164 UNREACHABLE(); |
165 case Location::EFFECT: | 165 case Location::kEffect: |
166 __ pop(); | 166 __ pop(); |
167 break; | 167 break; |
168 case Location::VALUE: | 168 case Location::kValue: |
169 __ str(source, MemOperand(sp)); | 169 __ str(source, MemOperand(sp)); |
170 break; | 170 break; |
171 } | 171 } |
172 } | 172 } |
173 | 173 |
174 | 174 |
175 void FastCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) { | 175 void FastCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) { |
176 // Call the runtime to declare the globals. | 176 // Call the runtime to declare the globals. |
177 // The context is the first argument. | 177 // The context is the first argument. |
178 __ mov(r1, Operand(pairs)); | 178 __ mov(r1, Operand(pairs)); |
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355 Smi::FromInt(0))); | 355 Smi::FromInt(0))); |
356 __ push(r1); | 356 __ push(r1); |
357 Visit(value); | 357 Visit(value); |
358 ASSERT(value->location().is_value()); | 358 ASSERT(value->location().is_value()); |
359 __ CallRuntime(Runtime::kDefineAccessor, 4); | 359 __ CallRuntime(Runtime::kDefineAccessor, 4); |
360 __ ldr(r0, MemOperand(sp)); // Restore result into r0 | 360 __ ldr(r0, MemOperand(sp)); // Restore result into r0 |
361 break; | 361 break; |
362 } | 362 } |
363 } | 363 } |
364 switch (expr->location().type()) { | 364 switch (expr->location().type()) { |
365 case Location::UNINITIALIZED: | 365 case Location::kUninitialized: |
366 UNREACHABLE(); | 366 UNREACHABLE(); |
367 case Location::EFFECT: | 367 case Location::kEffect: |
368 if (result_saved) __ pop(); | 368 if (result_saved) __ pop(); |
369 break; | 369 break; |
370 case Location::VALUE: | 370 case Location::kValue: |
371 if (!result_saved) __ push(r0); | 371 if (!result_saved) __ push(r0); |
372 break; | 372 break; |
373 } | 373 } |
374 } | 374 } |
375 | 375 |
376 | 376 |
377 void FastCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { | 377 void FastCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { |
378 Comment cmnt(masm_, "[ ArrayLiteral"); | 378 Comment cmnt(masm_, "[ ArrayLiteral"); |
379 Label make_clone; | 379 Label make_clone; |
380 | 380 |
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432 int offset = FixedArray::kHeaderSize + (i * kPointerSize); | 432 int offset = FixedArray::kHeaderSize + (i * kPointerSize); |
433 __ str(r0, FieldMemOperand(r1, offset)); | 433 __ str(r0, FieldMemOperand(r1, offset)); |
434 | 434 |
435 // Update the write barrier for the array store with r0 as the scratch | 435 // Update the write barrier for the array store with r0 as the scratch |
436 // register. | 436 // register. |
437 __ mov(r2, Operand(offset)); | 437 __ mov(r2, Operand(offset)); |
438 __ RecordWrite(r1, r2, r0); | 438 __ RecordWrite(r1, r2, r0); |
439 } | 439 } |
440 | 440 |
441 switch (expr->location().type()) { | 441 switch (expr->location().type()) { |
442 case Location::UNINITIALIZED: | 442 case Location::kUninitialized: |
443 UNREACHABLE(); | 443 UNREACHABLE(); |
444 case Location::EFFECT: | 444 case Location::kEffect: |
445 if (result_saved) __ pop(); | 445 if (result_saved) __ pop(); |
446 break; | 446 break; |
447 case Location::VALUE: | 447 case Location::kValue: |
448 if (!result_saved) __ push(r0); | 448 if (!result_saved) __ push(r0); |
449 break; | 449 break; |
450 } | 450 } |
451 } | 451 } |
452 | 452 |
453 | 453 |
454 void FastCodeGenerator::VisitAssignment(Assignment* expr) { | 454 void FastCodeGenerator::VisitAssignment(Assignment* expr) { |
455 Comment cmnt(masm_, "[ Assignment"); | 455 Comment cmnt(masm_, "[ Assignment"); |
456 ASSERT(expr->op() == Token::ASSIGN || expr->op() == Token::INIT_VAR); | 456 ASSERT(expr->op() == Token::ASSIGN || expr->op() == Token::INIT_VAR); |
457 | 457 |
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490 // Two cases: 'temp <- (var = constant)', or 'var = constant' with a | 490 // Two cases: 'temp <- (var = constant)', or 'var = constant' with a |
491 // discarded result. Always perform the assignment. | 491 // discarded result. Always perform the assignment. |
492 __ mov(ip, Operand(rhs->AsLiteral()->handle())); | 492 __ mov(ip, Operand(rhs->AsLiteral()->handle())); |
493 __ str(ip, MemOperand(fp, SlotOffset(var->slot()))); | 493 __ str(ip, MemOperand(fp, SlotOffset(var->slot()))); |
494 Move(expr->location(), ip); | 494 Move(expr->location(), ip); |
495 } else { | 495 } else { |
496 ASSERT(rhs->location().is_value()); | 496 ASSERT(rhs->location().is_value()); |
497 Visit(rhs); | 497 Visit(rhs); |
498 // Load right-hand side into ip. | 498 // Load right-hand side into ip. |
499 switch (expr->location().type()) { | 499 switch (expr->location().type()) { |
500 case Location::UNINITIALIZED: | 500 case Location::kUninitialized: |
501 UNREACHABLE(); | 501 UNREACHABLE(); |
502 case Location::EFFECT: | 502 case Location::kEffect: |
503 // Case 'var = temp'. Discard right-hand-side temporary. | 503 // Case 'var = temp'. Discard right-hand-side temporary. |
504 __ pop(ip); | 504 __ pop(ip); |
505 break; | 505 break; |
506 case Location::VALUE: | 506 case Location::kValue: |
507 // Case 'temp1 <- (var = temp0)'. Preserve right-hand-side | 507 // Case 'temp1 <- (var = temp0)'. Preserve right-hand-side |
508 // temporary on the stack. | 508 // temporary on the stack. |
509 __ ldr(ip, MemOperand(sp)); | 509 __ ldr(ip, MemOperand(sp)); |
510 break; | 510 break; |
511 } | 511 } |
512 // Do the slot assignment. | 512 // Do the slot assignment. |
513 __ str(ip, MemOperand(fp, SlotOffset(var->slot()))); | 513 __ str(ip, MemOperand(fp, SlotOffset(var->slot()))); |
514 } | 514 } |
515 } | 515 } |
516 } | 516 } |
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542 Visit(expr->key()); | 542 Visit(expr->key()); |
543 Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); | 543 Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); |
544 __ Call(ic, RelocInfo::CODE_TARGET); | 544 __ Call(ic, RelocInfo::CODE_TARGET); |
545 // By emitting a nop we make sure that we do not have a "test eax,..." | 545 // By emitting a nop we make sure that we do not have a "test eax,..." |
546 // instruction after the call it is treated specially by the LoadIC code. | 546 // instruction after the call it is treated specially by the LoadIC code. |
547 __ nop(); | 547 __ nop(); |
548 // Drop key and receiver left on the stack by IC. | 548 // Drop key and receiver left on the stack by IC. |
549 __ pop(); | 549 __ pop(); |
550 } | 550 } |
551 switch (expr->location().type()) { | 551 switch (expr->location().type()) { |
552 case Location::UNINITIALIZED: | 552 case Location::kUninitialized: |
553 UNREACHABLE(); | 553 UNREACHABLE(); |
554 case Location::VALUE: | 554 case Location::kValue: |
555 __ str(r0, MemOperand(sp)); | 555 __ str(r0, MemOperand(sp)); |
556 break; | 556 break; |
557 case Location::EFFECT: | 557 case Location::kEffect: |
558 __ pop(); | 558 __ pop(); |
559 } | 559 } |
560 } | 560 } |
561 | 561 |
562 | 562 |
563 void FastCodeGenerator::VisitCall(Call* expr) { | 563 void FastCodeGenerator::VisitCall(Call* expr) { |
564 Comment cmnt(masm_, "[ Call"); | 564 Comment cmnt(masm_, "[ Call"); |
565 Expression* fun = expr->expression(); | 565 Expression* fun = expr->expression(); |
566 ZoneList<Expression*>* args = expr->arguments(); | 566 ZoneList<Expression*>* args = expr->arguments(); |
567 Variable* var = fun->AsVariableProxy()->AsVariable(); | 567 Variable* var = fun->AsVariableProxy()->AsVariable(); |
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677 // The left-hand value is in on top of the stack. It is duplicated on the | 677 // The left-hand value is in on top of the stack. It is duplicated on the |
678 // stack iff the destination location is temporary. | 678 // stack iff the destination location is temporary. |
679 __ CallRuntime(Runtime::kToBool, 1); | 679 __ CallRuntime(Runtime::kToBool, 1); |
680 __ LoadRoot(ip, Heap::kTrueValueRootIndex); | 680 __ LoadRoot(ip, Heap::kTrueValueRootIndex); |
681 __ cmp(r0, ip); | 681 __ cmp(r0, ip); |
682 __ b(eq, &done); | 682 __ b(eq, &done); |
683 | 683 |
684 // Discard the left-hand value if present on the stack. | 684 // Discard the left-hand value if present on the stack. |
685 if (destination.is_value()) __ pop(); | 685 if (destination.is_value()) __ pop(); |
686 // Save or discard the right-hand value as needed. | 686 // Save or discard the right-hand value as needed. |
687 if (right->AsLiteral() != NULL) { | 687 Visit(right); |
688 Move(destination, right->AsLiteral()); | 688 ASSERT_EQ(destination.type(), right->location().type()); |
689 } else { | |
690 Visit(right); | |
691 Move(destination, right->location()); | |
692 } | |
693 | 689 |
694 __ bind(&done); | 690 __ bind(&done); |
695 } | 691 } |
696 | 692 |
697 } } // namespace v8::internal | 693 } } // namespace v8::internal |
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