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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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569 __ Push(Smi::FromInt(static_cast<int>(type))); | 569 __ Push(Smi::FromInt(static_cast<int>(type))); |
570 | 570 |
571 __ CallRuntime(Runtime::kNotifyDeoptimized, 1); | 571 __ CallRuntime(Runtime::kNotifyDeoptimized, 1); |
572 // Tear down temporary frame. | 572 // Tear down temporary frame. |
573 __ LeaveInternalFrame(); | 573 __ LeaveInternalFrame(); |
574 | 574 |
575 // Get the full codegen state from the stack and untag it. | 575 // Get the full codegen state from the stack and untag it. |
576 __ SmiToInteger32(rcx, Operand(rsp, 1 * kPointerSize)); | 576 __ SmiToInteger32(rcx, Operand(rsp, 1 * kPointerSize)); |
577 | 577 |
578 // Switch on the state. | 578 // Switch on the state. |
579 NearLabel not_no_registers, not_tos_rax; | 579 Label not_no_registers, not_tos_rax; |
580 __ cmpq(rcx, Immediate(FullCodeGenerator::NO_REGISTERS)); | 580 __ cmpq(rcx, Immediate(FullCodeGenerator::NO_REGISTERS)); |
581 __ j(not_equal, ¬_no_registers); | 581 __ j(not_equal, ¬_no_registers, Label::kNear); |
582 __ ret(1 * kPointerSize); // Remove state. | 582 __ ret(1 * kPointerSize); // Remove state. |
583 | 583 |
584 __ bind(¬_no_registers); | 584 __ bind(¬_no_registers); |
585 __ movq(rax, Operand(rsp, 2 * kPointerSize)); | 585 __ movq(rax, Operand(rsp, 2 * kPointerSize)); |
586 __ cmpq(rcx, Immediate(FullCodeGenerator::TOS_REG)); | 586 __ cmpq(rcx, Immediate(FullCodeGenerator::TOS_REG)); |
587 __ j(not_equal, ¬_tos_rax); | 587 __ j(not_equal, ¬_tos_rax, Label::kNear); |
588 __ ret(2 * kPointerSize); // Remove state, rax. | 588 __ ret(2 * kPointerSize); // Remove state, rax. |
589 | 589 |
590 __ bind(¬_tos_rax); | 590 __ bind(¬_tos_rax); |
591 __ Abort("no cases left"); | 591 __ Abort("no cases left"); |
592 } | 592 } |
593 | 593 |
594 void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { | 594 void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) { |
595 Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); | 595 Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
596 } | 596 } |
597 | 597 |
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1467 | 1467 |
1468 // Pass the function to optimize as the argument to the on-stack | 1468 // Pass the function to optimize as the argument to the on-stack |
1469 // replacement runtime function. | 1469 // replacement runtime function. |
1470 __ EnterInternalFrame(); | 1470 __ EnterInternalFrame(); |
1471 __ push(rax); | 1471 __ push(rax); |
1472 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); | 1472 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); |
1473 __ LeaveInternalFrame(); | 1473 __ LeaveInternalFrame(); |
1474 | 1474 |
1475 // If the result was -1 it means that we couldn't optimize the | 1475 // If the result was -1 it means that we couldn't optimize the |
1476 // function. Just return and continue in the unoptimized version. | 1476 // function. Just return and continue in the unoptimized version. |
1477 NearLabel skip; | 1477 Label skip; |
1478 __ SmiCompare(rax, Smi::FromInt(-1)); | 1478 __ SmiCompare(rax, Smi::FromInt(-1)); |
1479 __ j(not_equal, &skip); | 1479 __ j(not_equal, &skip, Label::kNear); |
1480 __ ret(0); | 1480 __ ret(0); |
1481 | 1481 |
1482 // If we decide not to perform on-stack replacement we perform a | 1482 // If we decide not to perform on-stack replacement we perform a |
1483 // stack guard check to enable interrupts. | 1483 // stack guard check to enable interrupts. |
1484 __ bind(&stack_check); | 1484 __ bind(&stack_check); |
1485 NearLabel ok; | 1485 Label ok; |
1486 __ CompareRoot(rsp, Heap::kStackLimitRootIndex); | 1486 __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
1487 __ j(above_equal, &ok); | 1487 __ j(above_equal, &ok, Label::kNear); |
1488 | 1488 |
1489 StackCheckStub stub; | 1489 StackCheckStub stub; |
1490 __ TailCallStub(&stub); | 1490 __ TailCallStub(&stub); |
1491 __ Abort("Unreachable code: returned from tail call."); | 1491 __ Abort("Unreachable code: returned from tail call."); |
1492 __ bind(&ok); | 1492 __ bind(&ok); |
1493 __ ret(0); | 1493 __ ret(0); |
1494 | 1494 |
1495 __ bind(&skip); | 1495 __ bind(&skip); |
1496 // Untag the AST id and push it on the stack. | 1496 // Untag the AST id and push it on the stack. |
1497 __ SmiToInteger32(rax, rax); | 1497 __ SmiToInteger32(rax, rax); |
1498 __ push(rax); | 1498 __ push(rax); |
1499 | 1499 |
1500 // Generate the code for doing the frame-to-frame translation using | 1500 // Generate the code for doing the frame-to-frame translation using |
1501 // the deoptimizer infrastructure. | 1501 // the deoptimizer infrastructure. |
1502 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); | 1502 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); |
1503 generator.Generate(); | 1503 generator.Generate(); |
1504 } | 1504 } |
1505 | 1505 |
1506 | 1506 |
1507 #undef __ | 1507 #undef __ |
1508 | 1508 |
1509 } } // namespace v8::internal | 1509 } } // namespace v8::internal |
1510 | 1510 |
1511 #endif // V8_TARGET_ARCH_X64 | 1511 #endif // V8_TARGET_ARCH_X64 |
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