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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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134 #elif V8_TARGET_ARCH_ARM | 134 #elif V8_TARGET_ARCH_ARM |
135 static const int kCodeSizeMultiplier = 142; | 135 static const int kCodeSizeMultiplier = 142; |
136 #elif V8_TARGET_ARCH_MIPS | 136 #elif V8_TARGET_ARCH_MIPS |
137 static const int kCodeSizeMultiplier = 142; | 137 static const int kCodeSizeMultiplier = 142; |
138 #else | 138 #else |
139 #error Unsupported target architecture. | 139 #error Unsupported target architecture. |
140 #endif | 140 #endif |
141 | 141 |
142 class BackEdgeTableIterator { | 142 class BackEdgeTableIterator { |
143 public: | 143 public: |
144 explicit BackEdgeTableIterator(Code* unoptimized) { | 144 explicit BackEdgeTableIterator(Code* unoptimized, |
| 145 DisallowHeapAllocation* required) { |
145 ASSERT(unoptimized->kind() == Code::FUNCTION); | 146 ASSERT(unoptimized->kind() == Code::FUNCTION); |
146 instruction_start_ = unoptimized->instruction_start(); | 147 instruction_start_ = unoptimized->instruction_start(); |
147 cursor_ = instruction_start_ + unoptimized->back_edge_table_offset(); | 148 cursor_ = instruction_start_ + unoptimized->back_edge_table_offset(); |
148 ASSERT(cursor_ < instruction_start_ + unoptimized->instruction_size()); | 149 ASSERT(cursor_ < instruction_start_ + unoptimized->instruction_size()); |
149 table_length_ = Memory::uint32_at(cursor_); | 150 table_length_ = Memory::uint32_at(cursor_); |
150 cursor_ += kTableLengthSize; | 151 cursor_ += kTableLengthSize; |
151 end_ = cursor_ + table_length_ * kEntrySize; | 152 end_ = cursor_ + table_length_ * kEntrySize; |
152 } | 153 } |
153 | 154 |
154 bool Done() { return cursor_ >= end_; } | 155 bool Done() { return cursor_ >= end_; } |
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185 static const int kTableLengthSize = kIntSize; | 186 static const int kTableLengthSize = kIntSize; |
186 static const int kAstIdOffset = 0 * kIntSize; | 187 static const int kAstIdOffset = 0 * kIntSize; |
187 static const int kPcOffsetOffset = 1 * kIntSize; | 188 static const int kPcOffsetOffset = 1 * kIntSize; |
188 static const int kLoopDepthOffset = 2 * kIntSize; | 189 static const int kLoopDepthOffset = 2 * kIntSize; |
189 static const int kEntrySize = 3 * kIntSize; | 190 static const int kEntrySize = 3 * kIntSize; |
190 | 191 |
191 Address cursor_; | 192 Address cursor_; |
192 Address end_; | 193 Address end_; |
193 Address instruction_start_; | 194 Address instruction_start_; |
194 uint32_t table_length_; | 195 uint32_t table_length_; |
195 DisallowHeapAllocation no_gc_while_iterating_over_raw_addresses_; | |
196 | 196 |
197 DISALLOW_COPY_AND_ASSIGN(BackEdgeTableIterator); | 197 DISALLOW_COPY_AND_ASSIGN(BackEdgeTableIterator); |
198 }; | 198 }; |
199 | 199 |
200 | 200 |
201 private: | 201 private: |
202 class Breakable; | 202 class Breakable; |
203 class Iteration; | 203 class Iteration; |
204 | 204 |
205 class TestContext; | 205 class TestContext; |
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936 } | 936 } |
937 | 937 |
938 private: | 938 private: |
939 Zone* zone_; | 939 Zone* zone_; |
940 }; | 940 }; |
941 | 941 |
942 | 942 |
943 } } // namespace v8::internal | 943 } } // namespace v8::internal |
944 | 944 |
945 #endif // V8_FULL_CODEGEN_H_ | 945 #endif // V8_FULL_CODEGEN_H_ |
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