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Issue 6713074: Require an isolate parameter for most external reference creation to (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Further cleanup Created 9 years, 9 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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506 } 506 }
507 507
508 508
509 #define __ masm()-> 509 #define __ masm()->
510 510
511 511
512 // This code tries to be close to ia32 code so that any changes can be 512 // This code tries to be close to ia32 code so that any changes can be
513 // easily ported. 513 // easily ported.
514 void Deoptimizer::EntryGenerator::Generate() { 514 void Deoptimizer::EntryGenerator::Generate() {
515 GeneratePrologue(); 515 GeneratePrologue();
516
517 Isolate* isolate = masm()->isolate();
518
516 CpuFeatures::Scope scope(VFP3); 519 CpuFeatures::Scope scope(VFP3);
517 // Save all general purpose registers before messing with them. 520 // Save all general purpose registers before messing with them.
518 const int kNumberOfRegisters = Register::kNumRegisters; 521 const int kNumberOfRegisters = Register::kNumRegisters;
519 522
520 // Everything but pc, lr and ip which will be saved but not restored. 523 // Everything but pc, lr and ip which will be saved but not restored.
521 RegList restored_regs = kJSCallerSaved | kCalleeSaved | ip.bit(); 524 RegList restored_regs = kJSCallerSaved | kCalleeSaved | ip.bit();
522 525
523 const int kDoubleRegsSize = 526 const int kDoubleRegsSize =
524 kDoubleSize * DwVfpRegister::kNumAllocatableRegisters; 527 kDoubleSize * DwVfpRegister::kNumAllocatableRegisters;
525 528
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560 563
561 // Allocate a new deoptimizer object. 564 // Allocate a new deoptimizer object.
562 // Pass four arguments in r0 to r3 and fifth argument on stack. 565 // Pass four arguments in r0 to r3 and fifth argument on stack.
563 __ PrepareCallCFunction(5, r5); 566 __ PrepareCallCFunction(5, r5);
564 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); 567 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
565 __ mov(r1, Operand(type())); // bailout type, 568 __ mov(r1, Operand(type())); // bailout type,
566 // r2: bailout id already loaded. 569 // r2: bailout id already loaded.
567 // r3: code address or 0 already loaded. 570 // r3: code address or 0 already loaded.
568 __ str(r4, MemOperand(sp, 0 * kPointerSize)); // Fp-to-sp delta. 571 __ str(r4, MemOperand(sp, 0 * kPointerSize)); // Fp-to-sp delta.
569 // Call Deoptimizer::New(). 572 // Call Deoptimizer::New().
570 __ CallCFunction(ExternalReference::new_deoptimizer_function(), 5); 573 __ CallCFunction(ExternalReference::new_deoptimizer_function(isolate), 5);
571 574
572 // Preserve "deoptimizer" object in register r0 and get the input 575 // Preserve "deoptimizer" object in register r0 and get the input
573 // frame descriptor pointer to r1 (deoptimizer->input_); 576 // frame descriptor pointer to r1 (deoptimizer->input_);
574 __ ldr(r1, MemOperand(r0, Deoptimizer::input_offset())); 577 __ ldr(r1, MemOperand(r0, Deoptimizer::input_offset()));
575 578
576 // Copy core registers into FrameDescription::registers_[kNumRegisters]. 579 // Copy core registers into FrameDescription::registers_[kNumRegisters].
577 ASSERT(Register::kNumRegisters == kNumberOfRegisters); 580 ASSERT(Register::kNumRegisters == kNumberOfRegisters);
578 for (int i = 0; i < kNumberOfRegisters; i++) { 581 for (int i = 0; i < kNumberOfRegisters; i++) {
579 int offset = (i * kPointerSize) + FrameDescription::registers_offset(); 582 int offset = (i * kPointerSize) + FrameDescription::registers_offset();
580 __ ldr(r2, MemOperand(sp, i * kPointerSize)); 583 __ ldr(r2, MemOperand(sp, i * kPointerSize));
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614 __ str(r4, MemOperand(r3, 0)); 617 __ str(r4, MemOperand(r3, 0));
615 __ add(r3, r3, Operand(sizeof(uint32_t))); 618 __ add(r3, r3, Operand(sizeof(uint32_t)));
616 __ cmp(r2, sp); 619 __ cmp(r2, sp);
617 __ b(ne, &pop_loop); 620 __ b(ne, &pop_loop);
618 621
619 // Compute the output frame in the deoptimizer. 622 // Compute the output frame in the deoptimizer.
620 __ push(r0); // Preserve deoptimizer object across call. 623 __ push(r0); // Preserve deoptimizer object across call.
621 // r0: deoptimizer object; r1: scratch. 624 // r0: deoptimizer object; r1: scratch.
622 __ PrepareCallCFunction(1, r1); 625 __ PrepareCallCFunction(1, r1);
623 // Call Deoptimizer::ComputeOutputFrames(). 626 // Call Deoptimizer::ComputeOutputFrames().
624 __ CallCFunction(ExternalReference::compute_output_frames_function(), 1); 627 __ CallCFunction(
628 ExternalReference::compute_output_frames_function(isolate), 1);
625 __ pop(r0); // Restore deoptimizer object (class Deoptimizer). 629 __ pop(r0); // Restore deoptimizer object (class Deoptimizer).
626 630
627 // Replace the current (input) frame with the output frames. 631 // Replace the current (input) frame with the output frames.
628 Label outer_push_loop, inner_push_loop; 632 Label outer_push_loop, inner_push_loop;
629 // Outer loop state: r0 = current "FrameDescription** output_", 633 // Outer loop state: r0 = current "FrameDescription** output_",
630 // r1 = one past the last FrameDescription**. 634 // r1 = one past the last FrameDescription**.
631 __ ldr(r1, MemOperand(r0, Deoptimizer::output_count_offset())); 635 __ ldr(r1, MemOperand(r0, Deoptimizer::output_count_offset()));
632 __ ldr(r0, MemOperand(r0, Deoptimizer::output_offset())); // r0 is output_. 636 __ ldr(r0, MemOperand(r0, Deoptimizer::output_offset())); // r0 is output_.
633 __ add(r1, r0, Operand(r1, LSL, 2)); 637 __ add(r1, r0, Operand(r1, LSL, 2));
634 __ bind(&outer_push_loop); 638 __ bind(&outer_push_loop);
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664 __ ldr(r6, MemOperand(r2, offset)); 668 __ ldr(r6, MemOperand(r2, offset));
665 __ push(r6); 669 __ push(r6);
666 } 670 }
667 671
668 // Restore the registers from the stack. 672 // Restore the registers from the stack.
669 __ ldm(ia_w, sp, restored_regs); // all but pc registers. 673 __ ldm(ia_w, sp, restored_regs); // all but pc registers.
670 __ pop(ip); // remove sp 674 __ pop(ip); // remove sp
671 __ pop(ip); // remove lr 675 __ pop(ip); // remove lr
672 676
673 // Set up the roots register. 677 // Set up the roots register.
674 ExternalReference roots_address = ExternalReference::roots_address(); 678 ExternalReference roots_address = ExternalReference::roots_address(isolate);
675 __ mov(r10, Operand(roots_address)); 679 __ mov(r10, Operand(roots_address));
676 680
677 __ pop(ip); // remove pc 681 __ pop(ip); // remove pc
678 __ pop(r7); // get continuation, leave pc on stack 682 __ pop(r7); // get continuation, leave pc on stack
679 __ pop(lr); 683 __ pop(lr);
680 __ Jump(r7); 684 __ Jump(r7);
681 __ stop("Unreachable."); 685 __ stop("Unreachable.");
682 } 686 }
683 687
684 688
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699 __ push(ip); 703 __ push(ip);
700 __ b(&done); 704 __ b(&done);
701 ASSERT(masm()->pc_offset() - start == table_entry_size_); 705 ASSERT(masm()->pc_offset() - start == table_entry_size_);
702 } 706 }
703 __ bind(&done); 707 __ bind(&done);
704 } 708 }
705 709
706 #undef __ 710 #undef __
707 711
708 } } // namespace v8::internal 712 } } // namespace v8::internal
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