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

Issue 136303012: Updates refactoring of CPU feature detection (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 9 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, 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 VM_ASSEMBLER_ARM_H_ 5 #ifndef VM_ASSEMBLER_ARM_H_
6 #define VM_ASSEMBLER_ARM_H_ 6 #define VM_ASSEMBLER_ARM_H_
7 7
8 #ifndef VM_ASSEMBLER_H_ 8 #ifndef VM_ASSEMBLER_H_
9 #error Do not include assembler_arm.h directly; use assembler.h instead. 9 #error Do not include assembler_arm.h directly; use assembler.h instead.
10 #endif 10 #endif
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56 void LinkTo(intptr_t position) { 56 void LinkTo(intptr_t position) {
57 ASSERT(!IsBound()); 57 ASSERT(!IsBound());
58 position_ = position + kWordSize; 58 position_ = position + kWordSize;
59 ASSERT(IsLinked()); 59 ASSERT(IsLinked());
60 } 60 }
61 61
62 friend class Assembler; 62 friend class Assembler;
63 DISALLOW_COPY_AND_ASSIGN(Label); 63 DISALLOW_COPY_AND_ASSIGN(Label);
64 }; 64 };
65 65
66
67 class CPUFeatures : public AllStatic {
68 public:
69 static void InitOnce();
70 static bool double_truncate_round_supported() { return false; }
71 static bool integer_division_supported();
72 static bool neon_supported();
73 #if defined(USING_SIMULATOR)
74 static void set_integer_division_supported(bool supported);
75 static void set_neon_supported(bool supported);
76 #endif
77 private:
78 static bool integer_division_supported_;
79 static bool neon_supported_;
80 #if defined(DEBUG)
81 static bool initialized_;
82 #endif
83 };
84
85
86 // Encodes Addressing Mode 1 - Data-processing operands. 66 // Encodes Addressing Mode 1 - Data-processing operands.
87 class ShifterOperand : public ValueObject { 67 class ShifterOperand : public ValueObject {
88 public: 68 public:
89 // Data-processing operands - Uninitialized. 69 // Data-processing operands - Uninitialized.
90 ShifterOperand() : type_(-1), encoding_(-1) { } 70 ShifterOperand() : type_(-1), encoding_(-1) { }
91 71
92 // Data-processing operands - Copy constructor. 72 // Data-processing operands - Copy constructor.
93 ShifterOperand(const ShifterOperand& other) 73 ShifterOperand(const ShifterOperand& other)
94 : ValueObject(), type_(other.type_), encoding_(other.encoding_) { } 74 : ValueObject(), type_(other.type_), encoding_(other.encoding_) { }
95 75
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900 Register value, 880 Register value,
901 Label* no_update); 881 Label* no_update);
902 882
903 DISALLOW_ALLOCATION(); 883 DISALLOW_ALLOCATION();
904 DISALLOW_COPY_AND_ASSIGN(Assembler); 884 DISALLOW_COPY_AND_ASSIGN(Assembler);
905 }; 885 };
906 886
907 } // namespace dart 887 } // namespace dart
908 888
909 #endif // VM_ASSEMBLER_ARM_H_ 889 #endif // VM_ASSEMBLER_ARM_H_
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