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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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79 Register EmitLoadRegister(LOperand* op, Register scratch); | 79 Register EmitLoadRegister(LOperand* op, Register scratch); |
80 | 80 |
81 // LOperand must be a double register. | 81 // LOperand must be a double register. |
82 DoubleRegister ToDoubleRegister(LOperand* op) const; | 82 DoubleRegister ToDoubleRegister(LOperand* op) const; |
83 | 83 |
84 // LOperand is loaded into dbl_scratch, unless already a double register. | 84 // LOperand is loaded into dbl_scratch, unless already a double register. |
85 DoubleRegister EmitLoadDoubleRegister(LOperand* op, | 85 DoubleRegister EmitLoadDoubleRegister(LOperand* op, |
86 SwVfpRegister flt_scratch, | 86 SwVfpRegister flt_scratch, |
87 DoubleRegister dbl_scratch); | 87 DoubleRegister dbl_scratch); |
88 int ToInteger32(LConstantOperand* op) const; | 88 int ToInteger32(LConstantOperand* op) const; |
| 89 double ToDouble(LConstantOperand* op) const; |
89 Operand ToOperand(LOperand* op); | 90 Operand ToOperand(LOperand* op); |
90 MemOperand ToMemOperand(LOperand* op) const; | 91 MemOperand ToMemOperand(LOperand* op) const; |
91 // Returns a MemOperand pointing to the high word of a DoubleStackSlot. | 92 // Returns a MemOperand pointing to the high word of a DoubleStackSlot. |
92 MemOperand ToHighMemOperand(LOperand* op) const; | 93 MemOperand ToHighMemOperand(LOperand* op) const; |
93 | 94 |
94 // Try to generate code for the entire chunk, but it may fail if the | 95 // Try to generate code for the entire chunk, but it may fail if the |
95 // chunk contains constructs we cannot handle. Returns true if the | 96 // chunk contains constructs we cannot handle. Returns true if the |
96 // code generation attempt succeeded. | 97 // code generation attempt succeeded. |
97 bool GenerateCode(); | 98 bool GenerateCode(); |
98 | 99 |
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256 int arguments, | 257 int arguments, |
257 int deoptimization_index); | 258 int deoptimization_index); |
258 void RecordPosition(int position); | 259 void RecordPosition(int position); |
259 int LastSafepointEnd() { | 260 int LastSafepointEnd() { |
260 return static_cast<int>(safepoints_.GetPcAfterGap()); | 261 return static_cast<int>(safepoints_.GetPcAfterGap()); |
261 } | 262 } |
262 | 263 |
263 static Condition TokenToCondition(Token::Value op, bool is_unsigned); | 264 static Condition TokenToCondition(Token::Value op, bool is_unsigned); |
264 void EmitGoto(int block); | 265 void EmitGoto(int block); |
265 void EmitBranch(int left_block, int right_block, Condition cc); | 266 void EmitBranch(int left_block, int right_block, Condition cc); |
266 void EmitCmpI(LOperand* left, LOperand* right); | |
267 void EmitNumberUntagD(Register input, | 267 void EmitNumberUntagD(Register input, |
268 DoubleRegister result, | 268 DoubleRegister result, |
269 bool deoptimize_on_undefined, | 269 bool deoptimize_on_undefined, |
270 LEnvironment* env); | 270 LEnvironment* env); |
271 | 271 |
272 // Emits optimized code for typeof x == "y". Modifies input register. | 272 // Emits optimized code for typeof x == "y". Modifies input register. |
273 // Returns the condition on which a final split to | 273 // Returns the condition on which a final split to |
274 // true and false label should be made, to optimize fallthrough. | 274 // true and false label should be made, to optimize fallthrough. |
275 Condition EmitTypeofIs(Label* true_label, Label* false_label, | 275 Condition EmitTypeofIs(Label* true_label, Label* false_label, |
276 Register input, Handle<String> type_name); | 276 Register input, Handle<String> type_name); |
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394 private: | 394 private: |
395 LCodeGen* codegen_; | 395 LCodeGen* codegen_; |
396 Label entry_; | 396 Label entry_; |
397 Label exit_; | 397 Label exit_; |
398 Label* external_exit_; | 398 Label* external_exit_; |
399 }; | 399 }; |
400 | 400 |
401 } } // namespace v8::internal | 401 } } // namespace v8::internal |
402 | 402 |
403 #endif // V8_ARM_LITHIUM_CODEGEN_ARM_H_ | 403 #endif // V8_ARM_LITHIUM_CODEGEN_ARM_H_ |
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