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Issue 11054002: Split flag --trace-deopt into --trace-deoptimization and --trace-deoptimization-verbose. Print sour… (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 2 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "vm/globals.h" 5 #include "vm/globals.h"
6 #if defined(TARGET_ARCH_IA32) 6 #if defined(TARGET_ARCH_IA32)
7 7
8 #include "vm/assembler.h" 8 #include "vm/assembler.h"
9 #include "vm/assembler_macros.h" 9 #include "vm/assembler_macros.h"
10 #include "vm/compiler.h" 10 #include "vm/compiler.h"
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556 // Restore result into EBX. 556 // Restore result into EBX.
557 __ movl(EBX, Address(EBP, -1 * kWordSize)); 557 __ movl(EBX, Address(EBP, -1 * kWordSize));
558 } 558 }
559 // Code above cannot cause GC. 559 // Code above cannot cause GC.
560 __ LeaveFrame(); 560 __ LeaveFrame();
561 __ movl(EBP, EAX); 561 __ movl(EBP, EAX);
562 562
563 // Frame is fully rewritten at this point and it is safe to perform a GC. 563 // Frame is fully rewritten at this point and it is safe to perform a GC.
564 // Materialize any objects that were deferred by FillFrame because they 564 // Materialize any objects that were deferred by FillFrame because they
565 // require allocation. 565 // require allocation.
566 __ EnterFrame(0); 566 AssemblerMacros::EnterStubFrame(assembler);
567 if (preserve_eax) { 567 if (preserve_eax) {
568 __ pushl(EBX); // Preserve result, it will be GC-d here. 568 __ pushl(EBX); // Preserve result, it will be GC-d here.
569 } 569 }
570 __ CallRuntime(kDeoptimizeMaterializeDoublesRuntimeEntry); 570 __ CallRuntime(kDeoptimizeMaterializeDoublesRuntimeEntry);
571 if (preserve_eax) { 571 if (preserve_eax) {
572 __ popl(EAX); // Restore result. 572 __ popl(EAX); // Restore result.
573 } 573 }
574 __ LeaveFrame(); 574 __ LeaveFrame();
575 __ ret(); 575 __ ret();
576 } 576 }
577 577
578
578 // TOS: return address + call-instruction-size (5 bytes). 579 // TOS: return address + call-instruction-size (5 bytes).
579 // EAX: result, must be preserved 580 // EAX: result, must be preserved
580 void StubCode::GenerateDeoptimizeLazyStub(Assembler* assembler) { 581 void StubCode::GenerateDeoptimizeLazyStub(Assembler* assembler) {
581 // Correct return address to point just after the call that is being 582 // Correct return address to point just after the call that is being
582 // deoptimized. 583 // deoptimized.
583 __ popl(EBX); 584 __ popl(EBX);
584 __ subl(EBX, Immediate(CallPattern::InstructionLength())); 585 __ subl(EBX, Immediate(CallPattern::InstructionLength()));
585 __ pushl(EBX); 586 __ pushl(EBX);
586 GenerateDeoptimizationSequence(assembler, true); // Preserve EAX. 587 GenerateDeoptimizationSequence(assembler, true); // Preserve EAX.
587 } 588 }
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1960 __ movl(EAX, Address(ESP, 4 * kWordSize)); // Load error object. 1961 __ movl(EAX, Address(ESP, 4 * kWordSize)); // Load error object.
1961 __ movl(EBP, Address(ESP, 3 * kWordSize)); // Load target frame_pointer. 1962 __ movl(EBP, Address(ESP, 3 * kWordSize)); // Load target frame_pointer.
1962 __ movl(EBX, Address(ESP, 1 * kWordSize)); // Load target PC into EBX. 1963 __ movl(EBX, Address(ESP, 1 * kWordSize)); // Load target PC into EBX.
1963 __ movl(ESP, Address(ESP, 2 * kWordSize)); // Load target stack_pointer. 1964 __ movl(ESP, Address(ESP, 2 * kWordSize)); // Load target stack_pointer.
1964 __ jmp(EBX); // Jump to the exception handler code. 1965 __ jmp(EBX); // Jump to the exception handler code.
1965 } 1966 }
1966 1967
1967 } // namespace dart 1968 } // namespace dart
1968 1969
1969 #endif // defined TARGET_ARCH_IA32 1970 #endif // defined TARGET_ARCH_IA32
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