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Issue 6026004: Fix error in r6083 (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 10 years ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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2481 // UNTAGGED case: 2481 // UNTAGGED case:
2482 // Input:: 2482 // Input::
2483 // esp[0]: return address. 2483 // esp[0]: return address.
2484 // xmm1: untagged double input argument 2484 // xmm1: untagged double input argument
2485 // Output: 2485 // Output:
2486 // xmm1: untagged double result. 2486 // xmm1: untagged double result.
2487 2487
2488 Label runtime_call; 2488 Label runtime_call;
2489 Label runtime_call_clear_stack; 2489 Label runtime_call_clear_stack;
2490 Label skip_cache; 2490 Label skip_cache;
2491 Label call_runtime;
2492 const bool tagged = (argument_type_ == TAGGED); 2491 const bool tagged = (argument_type_ == TAGGED);
2493 if (tagged) { 2492 if (tagged) {
2494 // Test that eax is a number. 2493 // Test that eax is a number.
2495 NearLabel input_not_smi; 2494 NearLabel input_not_smi;
2496 NearLabel loaded; 2495 NearLabel loaded;
2497 __ mov(eax, Operand(esp, kPointerSize)); 2496 __ mov(eax, Operand(esp, kPointerSize));
2498 __ test(eax, Immediate(kSmiTagMask)); 2497 __ test(eax, Immediate(kSmiTagMask));
2499 __ j(not_zero, &input_not_smi); 2498 __ j(not_zero, &input_not_smi);
2500 // Input is a smi. Untag and load it onto the FPU stack. 2499 // Input is a smi. Untag and load it onto the FPU stack.
2501 // Then load the low and high words of the double into ebx, edx. 2500 // Then load the low and high words of the double into ebx, edx.
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2628 __ Ret(); 2627 __ Ret();
2629 } 2628 }
2630 2629
2631 // Call runtime, doing whatever allocation and cleanup is necessary. 2630 // Call runtime, doing whatever allocation and cleanup is necessary.
2632 if (tagged) { 2631 if (tagged) {
2633 __ bind(&runtime_call_clear_stack); 2632 __ bind(&runtime_call_clear_stack);
2634 __ fstp(0); 2633 __ fstp(0);
2635 __ bind(&runtime_call); 2634 __ bind(&runtime_call);
2636 __ TailCallExternalReference(ExternalReference(RuntimeFunction()), 1, 1); 2635 __ TailCallExternalReference(ExternalReference(RuntimeFunction()), 1, 1);
2637 } else { // UNTAGGED. 2636 } else { // UNTAGGED.
2638 __ bind(&call_runtime); 2637 __ bind(&runtime_call_clear_stack);
2638 __ bind(&runtime_call);
2639 __ AllocateHeapNumber(eax, edi, no_reg, &skip_cache); 2639 __ AllocateHeapNumber(eax, edi, no_reg, &skip_cache);
2640 __ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm1); 2640 __ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm1);
2641 __ EnterInternalFrame(); 2641 __ EnterInternalFrame();
2642 __ push(eax); 2642 __ push(eax);
2643 __ CallRuntime(RuntimeFunction(), 1); 2643 __ CallRuntime(RuntimeFunction(), 1);
2644 __ LeaveInternalFrame(); 2644 __ LeaveInternalFrame();
2645 __ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset)); 2645 __ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
2646 __ Ret(); 2646 __ Ret();
2647 } 2647 }
2648 } 2648 }
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6398 // Do a tail call to the rewritten stub. 6398 // Do a tail call to the rewritten stub.
6399 __ jmp(Operand(edi)); 6399 __ jmp(Operand(edi));
6400 } 6400 }
6401 6401
6402 6402
6403 #undef __ 6403 #undef __
6404 6404
6405 } } // namespace v8::internal 6405 } } // namespace v8::internal
6406 6406
6407 #endif // V8_TARGET_ARCH_IA32 6407 #endif // V8_TARGET_ARCH_IA32
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