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Side by Side Diff: runtime/vm/stack_frame_dbc.h

Issue 2481873005: clang-format runtime/vm (Closed)
Patch Set: Merge Created 4 years, 1 month ago
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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2016, 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 #ifndef RUNTIME_VM_STACK_FRAME_DBC_H_ 5 #ifndef RUNTIME_VM_STACK_FRAME_DBC_H_
6 #define RUNTIME_VM_STACK_FRAME_DBC_H_ 6 #define RUNTIME_VM_STACK_FRAME_DBC_H_
7 7
8 namespace dart { 8 namespace dart {
9 9
10 /* DBC Frame Layout 10 /* DBC Frame Layout
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36 */ 36 */
37 37
38 static const int kDartFrameFixedSize = 4; // Function, Code, PC, FP 38 static const int kDartFrameFixedSize = 4; // Function, Code, PC, FP
39 static const int kSavedPcSlotFromSp = 3; 39 static const int kSavedPcSlotFromSp = 3;
40 40
41 static const int kFirstObjectSlotFromFp = -4; // Used by GC to traverse stack. 41 static const int kFirstObjectSlotFromFp = -4; // Used by GC to traverse stack.
42 42
43 static const int kSavedCallerFpSlotFromFp = -1; 43 static const int kSavedCallerFpSlotFromFp = -1;
44 static const int kSavedCallerPpSlotFromFp = kSavedCallerFpSlotFromFp; 44 static const int kSavedCallerPpSlotFromFp = kSavedCallerFpSlotFromFp;
45 static const int kSavedCallerPcSlotFromFp = -2; 45 static const int kSavedCallerPcSlotFromFp = -2;
46 static const int kCallerSpSlotFromFp = -kDartFrameFixedSize-1; 46 static const int kCallerSpSlotFromFp = -kDartFrameFixedSize - 1;
47 static const int kPcMarkerSlotFromFp = -3; 47 static const int kPcMarkerSlotFromFp = -3;
48 static const int kFunctionSlotFromFp = -4; 48 static const int kFunctionSlotFromFp = -4;
49 49
50 // Note: These constants don't match actual DBC behavior. This is done because 50 // Note: These constants don't match actual DBC behavior. This is done because
51 // setting kFirstLocalSlotFromFp to 0 breaks assumptions spread across the code. 51 // setting kFirstLocalSlotFromFp to 0 breaks assumptions spread across the code.
52 // Instead for the purposes of local variable allocation we pretend that DBC 52 // Instead for the purposes of local variable allocation we pretend that DBC
53 // behaves as other architectures (stack growing downwards) and later fix 53 // behaves as other architectures (stack growing downwards) and later fix
54 // these indices during code generation in the backend. 54 // these indices during code generation in the backend.
55 static const int kParamEndSlotFromFp = 4; // One slot past last parameter. 55 static const int kParamEndSlotFromFp = 4; // One slot past last parameter.
56 static const int kFirstLocalSlotFromFp = -1; 56 static const int kFirstLocalSlotFromFp = -1;
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78 static const int kExitLinkSlotFromEntryFp = 0; 78 static const int kExitLinkSlotFromEntryFp = 0;
79 79
80 // Value for stack limit that is used to cause an interrupt. 80 // Value for stack limit that is used to cause an interrupt.
81 // Note that on DBC stack is growing upwards so interrupt limit is 0 unlike 81 // Note that on DBC stack is growing upwards so interrupt limit is 0 unlike
82 // on all other architectures. 82 // on all other architectures.
83 static const uword kInterruptStackLimit = 0; 83 static const uword kInterruptStackLimit = 0;
84 84
85 } // namespace dart 85 } // namespace dart
86 86
87 #endif // RUNTIME_VM_STACK_FRAME_DBC_H_ 87 #endif // RUNTIME_VM_STACK_FRAME_DBC_H_
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