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Issue 6390001: Add support for deoptimization on x64. ... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 10 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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501 __ mov(Operand(esp, 3 * kPointerSize), ecx); // Code address or 0. 501 __ mov(Operand(esp, 3 * kPointerSize), ecx); // Code address or 0.
502 __ mov(Operand(esp, 4 * kPointerSize), edx); // Fp-to-sp delta. 502 __ mov(Operand(esp, 4 * kPointerSize), edx); // Fp-to-sp delta.
503 __ CallCFunction(ExternalReference::new_deoptimizer_function(), 5); 503 __ CallCFunction(ExternalReference::new_deoptimizer_function(), 5);
504 504
505 // Preserve deoptimizer object in register eax and get the input 505 // Preserve deoptimizer object in register eax and get the input
506 // frame descriptor pointer. 506 // frame descriptor pointer.
507 __ mov(ebx, Operand(eax, Deoptimizer::input_offset())); 507 __ mov(ebx, Operand(eax, Deoptimizer::input_offset()));
508 508
509 // Fill in the input registers. 509 // Fill in the input registers.
510 for (int i = 0; i < kNumberOfRegisters; i++) { 510 for (int i = 0; i < kNumberOfRegisters; i++) {
511 int offset = (i * kIntSize) + FrameDescription::registers_offset(); 511 int offset = (i * kPointerSize) + FrameDescription::registers_offset();
512 __ mov(ecx, Operand(esp, (kNumberOfRegisters - 1 - i) * kPointerSize)); 512 __ mov(ecx, Operand(esp, (kNumberOfRegisters - 1 - i) * kPointerSize));
513 __ mov(Operand(ebx, offset), ecx); 513 __ mov(Operand(ebx, offset), ecx);
514 } 514 }
515 515
516 // Fill in the double input registers. 516 // Fill in the double input registers.
517 int double_regs_offset = FrameDescription::double_registers_offset(); 517 int double_regs_offset = FrameDescription::double_registers_offset();
518 for (int i = 0; i < XMMRegister::kNumAllocatableRegisters; ++i) { 518 for (int i = 0; i < XMMRegister::kNumAllocatableRegisters; ++i) {
519 int dst_offset = i * kDoubleSize + double_regs_offset; 519 int dst_offset = i * kDoubleSize + double_regs_offset;
520 int src_offset = i * kDoubleSize + kNumberOfRegisters * kPointerSize; 520 int src_offset = i * kDoubleSize + kNumberOfRegisters * kPointerSize;
521 __ movdbl(xmm0, Operand(esp, src_offset)); 521 __ movdbl(xmm0, Operand(esp, src_offset));
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584 // Push state, pc, and continuation from the last output frame. 584 // Push state, pc, and continuation from the last output frame.
585 if (type() != OSR) { 585 if (type() != OSR) {
586 __ push(Operand(ebx, FrameDescription::state_offset())); 586 __ push(Operand(ebx, FrameDescription::state_offset()));
587 } 587 }
588 __ push(Operand(ebx, FrameDescription::pc_offset())); 588 __ push(Operand(ebx, FrameDescription::pc_offset()));
589 __ push(Operand(ebx, FrameDescription::continuation_offset())); 589 __ push(Operand(ebx, FrameDescription::continuation_offset()));
590 590
591 591
592 // Push the registers from the last output frame. 592 // Push the registers from the last output frame.
593 for (int i = 0; i < kNumberOfRegisters; i++) { 593 for (int i = 0; i < kNumberOfRegisters; i++) {
594 int offset = (i * kIntSize) + FrameDescription::registers_offset(); 594 int offset = (i * kPointerSize) + FrameDescription::registers_offset();
595 __ push(Operand(ebx, offset)); 595 __ push(Operand(ebx, offset));
596 } 596 }
597 597
598 // Restore the registers from the stack. 598 // Restore the registers from the stack.
599 __ popad(); 599 __ popad();
600 600
601 // Return to the continuation point. 601 // Return to the continuation point.
602 __ ret(0); 602 __ ret(0);
603 } 603 }
604 604
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615 } 615 }
616 __ bind(&done); 616 __ bind(&done);
617 } 617 }
618 618
619 #undef __ 619 #undef __
620 620
621 621
622 } } // namespace v8::internal 622 } } // namespace v8::internal
623 623
624 #endif // V8_TARGET_ARCH_IA32 624 #endif // V8_TARGET_ARCH_IA32
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