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Issue 7891042: Add asserts to ensure that we: (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 3 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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497 497
498 if (id == IC::kCallIC_Miss) { 498 if (id == IC::kCallIC_Miss) {
499 __ IncrementCounter(isolate->counters()->call_miss(), 1, a3, t0); 499 __ IncrementCounter(isolate->counters()->call_miss(), 1, a3, t0);
500 } else { 500 } else {
501 __ IncrementCounter(isolate->counters()->keyed_call_miss(), 1, a3, t0); 501 __ IncrementCounter(isolate->counters()->keyed_call_miss(), 1, a3, t0);
502 } 502 }
503 503
504 // Get the receiver of the function from the stack. 504 // Get the receiver of the function from the stack.
505 __ lw(a3, MemOperand(sp, argc*kPointerSize)); 505 __ lw(a3, MemOperand(sp, argc*kPointerSize));
506 506
507 __ EnterInternalFrame(); 507 {
508 FrameScope scope(masm, StackFrame::INTERNAL);
508 509
509 // Push the receiver and the name of the function. 510 // Push the receiver and the name of the function.
510 __ Push(a3, a2); 511 __ Push(a3, a2);
511 512
512 // Call the entry. 513 // Call the entry.
513 __ li(a0, Operand(2)); 514 __ li(a0, Operand(2));
514 __ li(a1, Operand(ExternalReference(IC_Utility(id), isolate))); 515 __ li(a1, Operand(ExternalReference(IC_Utility(id), isolate)));
515 516
516 CEntryStub stub(1); 517 CEntryStub stub(1);
517 __ CallStub(&stub); 518 __ CallStub(&stub);
518 519
519 // Move result to a1 and leave the internal frame. 520 // Move result to a1 and leave the internal frame.
520 __ mov(a1, v0); 521 __ mov(a1, v0);
521 __ LeaveInternalFrame(); 522 }
522 523
523 // Check if the receiver is a global object of some sort. 524 // Check if the receiver is a global object of some sort.
524 // This can happen only for regular CallIC but not KeyedCallIC. 525 // This can happen only for regular CallIC but not KeyedCallIC.
525 if (id == IC::kCallIC_Miss) { 526 if (id == IC::kCallIC_Miss) {
526 Label invoke, global; 527 Label invoke, global;
527 __ lw(a2, MemOperand(sp, argc * kPointerSize)); 528 __ lw(a2, MemOperand(sp, argc * kPointerSize));
528 __ andi(t0, a2, kSmiTagMask); 529 __ andi(t0, a2, kSmiTagMask);
529 __ Branch(&invoke, eq, t0, Operand(zero_reg)); 530 __ Branch(&invoke, eq, t0, Operand(zero_reg));
530 __ GetObjectType(a2, a3, a3); 531 __ GetObjectType(a2, a3, a3);
531 __ Branch(&global, eq, a3, Operand(JS_GLOBAL_OBJECT_TYPE)); 532 __ Branch(&global, eq, a3, Operand(JS_GLOBAL_OBJECT_TYPE));
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642 __ sra(a0, a2, kSmiTagSize); 643 __ sra(a0, a2, kSmiTagSize);
643 // a0: untagged index 644 // a0: untagged index
644 __ LoadFromNumberDictionary(&slow_load, t0, a2, a1, a0, a3, t1); 645 __ LoadFromNumberDictionary(&slow_load, t0, a2, a1, a0, a3, t1);
645 __ IncrementCounter(counters->keyed_call_generic_smi_dict(), 1, a0, a3); 646 __ IncrementCounter(counters->keyed_call_generic_smi_dict(), 1, a0, a3);
646 __ jmp(&do_call); 647 __ jmp(&do_call);
647 648
648 __ bind(&slow_load); 649 __ bind(&slow_load);
649 // This branch is taken when calling KeyedCallIC_Miss is neither required 650 // This branch is taken when calling KeyedCallIC_Miss is neither required
650 // nor beneficial. 651 // nor beneficial.
651 __ IncrementCounter(counters->keyed_call_generic_slow_load(), 1, a0, a3); 652 __ IncrementCounter(counters->keyed_call_generic_slow_load(), 1, a0, a3);
652 __ EnterInternalFrame(); 653 {
653 __ push(a2); // Save the key. 654 FrameScope scope(masm, StackFrame::INTERNAL);
654 __ Push(a1, a2); // Pass the receiver and the key. 655 __ push(a2); // Save the key.
655 __ CallRuntime(Runtime::kKeyedGetProperty, 2); 656 __ Push(a1, a2); // Pass the receiver and the key.
656 __ pop(a2); // Restore the key. 657 __ CallRuntime(Runtime::kKeyedGetProperty, 2);
657 __ LeaveInternalFrame(); 658 __ pop(a2); // Restore the key.
659 }
658 __ mov(a1, v0); 660 __ mov(a1, v0);
659 __ jmp(&do_call); 661 __ jmp(&do_call);
660 662
661 __ bind(&check_string); 663 __ bind(&check_string);
662 GenerateKeyStringCheck(masm, a2, a0, a3, &index_string, &slow_call); 664 GenerateKeyStringCheck(masm, a2, a0, a3, &index_string, &slow_call);
663 665
664 // The key is known to be a symbol. 666 // The key is known to be a symbol.
665 // If the receiver is a regular JS object with slow properties then do 667 // If the receiver is a regular JS object with slow properties then do
666 // a quick inline probe of the receiver's dictionary. 668 // a quick inline probe of the receiver's dictionary.
667 // Otherwise do the monomorphic cache probe. 669 // Otherwise do the monomorphic cache probe.
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1626 Register reg = Register::from_code(Assembler::GetRs(instr_at_patch)); 1628 Register reg = Register::from_code(Assembler::GetRs(instr_at_patch));
1627 patcher.masm()->andi(at, reg, kSmiTagMask); 1629 patcher.masm()->andi(at, reg, kSmiTagMask);
1628 patcher.ChangeBranchCondition(eq); 1630 patcher.ChangeBranchCondition(eq);
1629 } 1631 }
1630 } 1632 }
1631 1633
1632 1634
1633 } } // namespace v8::internal 1635 } } // namespace v8::internal
1634 1636
1635 #endif // V8_TARGET_ARCH_MIPS 1637 #endif // V8_TARGET_ARCH_MIPS
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