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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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| 3425 #ifdef _WIN64 | 3425 #ifdef _WIN64 |
| 3426 const int kShadowSpace = 4; | 3426 const int kShadowSpace = 4; |
| 3427 arg_stack_space += kShadowSpace; | 3427 arg_stack_space += kShadowSpace; |
| 3428 #endif | 3428 #endif |
| 3429 // Optionally save all XMM registers. | 3429 // Optionally save all XMM registers. |
| 3430 if (save_doubles) { | 3430 if (save_doubles) { |
| 3431 int space = XMMRegister::kNumRegisters * kDoubleSize + | 3431 int space = XMMRegister::kNumRegisters * kDoubleSize + |
| 3432 arg_stack_space * kPointerSize; | 3432 arg_stack_space * kPointerSize; |
| 3433 subq(rsp, Immediate(space)); | 3433 subq(rsp, Immediate(space)); |
| 3434 int offset = -2 * kPointerSize; | 3434 int offset = -2 * kPointerSize; |
| 3435 for (int i = 0; i < XMMRegister::NumAllocatableRegisters(); i++) { | 3435 for (int i = 0; i < XMMRegister::kNumAllocatableRegisters; i++) { |
| 3436 XMMRegister reg = XMMRegister::FromAllocationIndex(i); | 3436 XMMRegister reg = XMMRegister::FromAllocationIndex(i); |
| 3437 movsd(Operand(rbp, offset - ((i + 1) * kDoubleSize)), reg); | 3437 movsd(Operand(rbp, offset - ((i + 1) * kDoubleSize)), reg); |
| 3438 } | 3438 } |
| 3439 } else if (arg_stack_space > 0) { | 3439 } else if (arg_stack_space > 0) { |
| 3440 subq(rsp, Immediate(arg_stack_space * kPointerSize)); | 3440 subq(rsp, Immediate(arg_stack_space * kPointerSize)); |
| 3441 } | 3441 } |
| 3442 | 3442 |
| 3443 // Get the required frame alignment for the OS. | 3443 // Get the required frame alignment for the OS. |
| 3444 const int kFrameAlignment = OS::ActivationFrameAlignment(); | 3444 const int kFrameAlignment = OS::ActivationFrameAlignment(); |
| 3445 if (kFrameAlignment > 0) { | 3445 if (kFrameAlignment > 0) { |
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| 3469 EnterExitFramePrologue(false); | 3469 EnterExitFramePrologue(false); |
| 3470 EnterExitFrameEpilogue(arg_stack_space, false); | 3470 EnterExitFrameEpilogue(arg_stack_space, false); |
| 3471 } | 3471 } |
| 3472 | 3472 |
| 3473 | 3473 |
| 3474 void MacroAssembler::LeaveExitFrame(bool save_doubles) { | 3474 void MacroAssembler::LeaveExitFrame(bool save_doubles) { |
| 3475 // Registers: | 3475 // Registers: |
| 3476 // r15 : argv | 3476 // r15 : argv |
| 3477 if (save_doubles) { | 3477 if (save_doubles) { |
| 3478 int offset = -2 * kPointerSize; | 3478 int offset = -2 * kPointerSize; |
| 3479 for (int i = 0; i < XMMRegister::NumAllocatableRegisters(); i++) { | 3479 for (int i = 0; i < XMMRegister::kNumAllocatableRegisters; i++) { |
| 3480 XMMRegister reg = XMMRegister::FromAllocationIndex(i); | 3480 XMMRegister reg = XMMRegister::FromAllocationIndex(i); |
| 3481 movsd(reg, Operand(rbp, offset - ((i + 1) * kDoubleSize))); | 3481 movsd(reg, Operand(rbp, offset - ((i + 1) * kDoubleSize))); |
| 3482 } | 3482 } |
| 3483 } | 3483 } |
| 3484 // Get the return address from the stack and restore the frame pointer. | 3484 // Get the return address from the stack and restore the frame pointer. |
| 3485 movq(rcx, Operand(rbp, 1 * kPointerSize)); | 3485 movq(rcx, Operand(rbp, 1 * kPointerSize)); |
| 3486 movq(rbp, Operand(rbp, 0 * kPointerSize)); | 3486 movq(rbp, Operand(rbp, 0 * kPointerSize)); |
| 3487 | 3487 |
| 3488 // Drop everything up to and including the arguments and the receiver | 3488 // Drop everything up to and including the arguments and the receiver |
| 3489 // from the caller stack. | 3489 // from the caller stack. |
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| 4585 | 4585 |
| 4586 movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset)); | 4586 movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset)); |
| 4587 cmpq(rcx, null_value); | 4587 cmpq(rcx, null_value); |
| 4588 j(not_equal, &next); | 4588 j(not_equal, &next); |
| 4589 } | 4589 } |
| 4590 | 4590 |
| 4591 | 4591 |
| 4592 } } // namespace v8::internal | 4592 } } // namespace v8::internal |
| 4593 | 4593 |
| 4594 #endif // V8_TARGET_ARCH_X64 | 4594 #endif // V8_TARGET_ARCH_X64 |
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