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Issue 1944503002: Adds more DBC assembler tests. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 7 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/stack_frame.h" 5 #include "vm/stack_frame.h"
6 6
7 #include "platform/memory_sanitizer.h" 7 #include "platform/memory_sanitizer.h"
8 #include "vm/assembler.h" 8 #include "vm/assembler.h"
9 #include "vm/deopt_instructions.h" 9 #include "vm/deopt_instructions.h"
10 #include "vm/isolate.h" 10 #include "vm/isolate.h"
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62 } 62 }
63 } 63 }
64 64
65 65
66 void ExitFrame::VisitObjectPointers(ObjectPointerVisitor* visitor) { 66 void ExitFrame::VisitObjectPointers(ObjectPointerVisitor* visitor) {
67 // There are no objects to visit in this frame. 67 // There are no objects to visit in this frame.
68 } 68 }
69 69
70 70
71 void EntryFrame::VisitObjectPointers(ObjectPointerVisitor* visitor) { 71 void EntryFrame::VisitObjectPointers(ObjectPointerVisitor* visitor) {
72 #if !defined(TARGET_ARCH_DBC)
73 ASSERT(thread() == Thread::Current()); 72 ASSERT(thread() == Thread::Current());
74 // Visit objects between SP and (FP - callee_save_area). 73 // Visit objects between SP and (FP - callee_save_area).
75 ASSERT(visitor != NULL); 74 ASSERT(visitor != NULL);
75 #if !defined(TARGET_ARCH_DBC)
76 RawObject** first = reinterpret_cast<RawObject**>(sp()); 76 RawObject** first = reinterpret_cast<RawObject**>(sp());
77 RawObject** last = reinterpret_cast<RawObject**>( 77 RawObject** last = reinterpret_cast<RawObject**>(
78 fp() + (kExitLinkSlotFromEntryFp - 1) * kWordSize); 78 fp() + (kExitLinkSlotFromEntryFp - 1) * kWordSize);
79 visitor->VisitPointers(first, last); 79 visitor->VisitPointers(first, last);
80 #else 80 #else
81 // On DBC stack is growing upwards which implies fp() <= sp(). 81 // On DBC stack is growing upwards which implies fp() <= sp().
82 RawObject** first = reinterpret_cast<RawObject**>(fp()); 82 RawObject** first = reinterpret_cast<RawObject**>(fp());
83 RawObject** last = reinterpret_cast<RawObject**>(sp()); 83 RawObject** last = reinterpret_cast<RawObject**>(sp());
84 visitor->VisitPointers(first, last); 84 visitor->VisitPointers(first, last);
85 #endif 85 #endif
86 } 86 }
87 87
88 88
89 void StackFrame::VisitObjectPointers(ObjectPointerVisitor* visitor) { 89 void StackFrame::VisitObjectPointers(ObjectPointerVisitor* visitor) {
90 ASSERT(thread() == Thread::Current());
91 ASSERT(visitor != NULL);
90 #if !defined(TARGET_ARCH_DBC) 92 #if !defined(TARGET_ARCH_DBC)
91 // NOTE: This code runs while GC is in progress and runs within 93 // NOTE: This code runs while GC is in progress and runs within
92 // a NoHandleScope block. Hence it is not ok to use regular Zone or 94 // a NoHandleScope block. Hence it is not ok to use regular Zone or
93 // Scope handles. We use direct stack handles, the raw pointers in 95 // Scope handles. We use direct stack handles, the raw pointers in
94 // these handles are not traversed. The use of handles is mainly to 96 // these handles are not traversed. The use of handles is mainly to
95 // be able to reuse the handle based code and avoid having to add 97 // be able to reuse the handle based code and avoid having to add
96 // helper functions to the raw object interface. 98 // helper functions to the raw object interface.
97 ASSERT(thread() == Thread::Current());
98 ASSERT(visitor != NULL);
99 NoSafepointScope no_safepoint; 99 NoSafepointScope no_safepoint;
100 Code code; 100 Code code;
101 code = LookupDartCode(); 101 code = LookupDartCode();
102 if (!code.IsNull()) { 102 if (!code.IsNull()) {
103 // Visit the code object. 103 // Visit the code object.
104 RawObject* raw_code = code.raw(); 104 RawObject* raw_code = code.raw();
105 visitor->VisitPointer(&raw_code); 105 visitor->VisitPointer(&raw_code);
106 106
107 // Optimized frames have a stack map. We need to visit the frame based 107 // Optimized frames have a stack map. We need to visit the frame based
108 // on the stack map. 108 // on the stack map.
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516 if (deopt_instr->kind() == DeoptInstr::kCallerFp) { 516 if (deopt_instr->kind() == DeoptInstr::kCallerFp) {
517 return (index - num_materializations_); 517 return (index - num_materializations_);
518 } 518 }
519 } 519 }
520 UNREACHABLE(); 520 UNREACHABLE();
521 return 0; 521 return 0;
522 } 522 }
523 523
524 524
525 } // namespace dart 525 } // namespace dart
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