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Issue 11414262: Revert 13105: "Enable stub generation using Hydrogen/Lithium." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years ago
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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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171 Condition cond = al); 171 Condition cond = al);
172 void Bfc(Register dst, Register src, int lsb, int width, Condition cond = al); 172 void Bfc(Register dst, Register src, int lsb, int width, Condition cond = al);
173 void Usat(Register dst, int satpos, const Operand& src, 173 void Usat(Register dst, int satpos, const Operand& src,
174 Condition cond = al); 174 Condition cond = al);
175 175
176 void Call(Label* target); 176 void Call(Label* target);
177 177
178 // Register move. May do nothing if the registers are identical. 178 // Register move. May do nothing if the registers are identical.
179 void Move(Register dst, Handle<Object> value); 179 void Move(Register dst, Handle<Object> value);
180 void Move(Register dst, Register src, Condition cond = al); 180 void Move(Register dst, Register src, Condition cond = al);
181 void Move(DwVfpRegister dst, DwVfpRegister src); 181 void Move(DoubleRegister dst, DoubleRegister src);
182 182
183 // Load an object from the root table. 183 // Load an object from the root table.
184 void LoadRoot(Register destination, 184 void LoadRoot(Register destination,
185 Heap::RootListIndex index, 185 Heap::RootListIndex index,
186 Condition cond = al); 186 Condition cond = al);
187 // Store an object to the root table. 187 // Store an object to the root table.
188 void StoreRoot(Register source, 188 void StoreRoot(Register source,
189 Heap::RootListIndex index, 189 Heap::RootListIndex index,
190 Condition cond = al); 190 Condition cond = al);
191 191
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1051 void PrepareCallCFunction(int num_reg_arguments, 1051 void PrepareCallCFunction(int num_reg_arguments,
1052 int num_double_registers, 1052 int num_double_registers,
1053 Register scratch); 1053 Register scratch);
1054 void PrepareCallCFunction(int num_reg_arguments, 1054 void PrepareCallCFunction(int num_reg_arguments,
1055 Register scratch); 1055 Register scratch);
1056 1056
1057 // There are two ways of passing double arguments on ARM, depending on 1057 // There are two ways of passing double arguments on ARM, depending on
1058 // whether soft or hard floating point ABI is used. These functions 1058 // whether soft or hard floating point ABI is used. These functions
1059 // abstract parameter passing for the three different ways we call 1059 // abstract parameter passing for the three different ways we call
1060 // C functions from generated code. 1060 // C functions from generated code.
1061 void SetCallCDoubleArguments(DwVfpRegister dreg); 1061 void SetCallCDoubleArguments(DoubleRegister dreg);
1062 void SetCallCDoubleArguments(DwVfpRegister dreg1, DwVfpRegister dreg2); 1062 void SetCallCDoubleArguments(DoubleRegister dreg1, DoubleRegister dreg2);
1063 void SetCallCDoubleArguments(DwVfpRegister dreg, Register reg); 1063 void SetCallCDoubleArguments(DoubleRegister dreg, Register reg);
1064 1064
1065 // Calls a C function and cleans up the space for arguments allocated 1065 // Calls a C function and cleans up the space for arguments allocated
1066 // by PrepareCallCFunction. The called function is not allowed to trigger a 1066 // by PrepareCallCFunction. The called function is not allowed to trigger a
1067 // garbage collection, since that might move the code and invalidate the 1067 // garbage collection, since that might move the code and invalidate the
1068 // return address (unless this is somehow accounted for by the called 1068 // return address (unless this is somehow accounted for by the called
1069 // function). 1069 // function).
1070 void CallCFunction(ExternalReference function, int num_arguments); 1070 void CallCFunction(ExternalReference function, int num_arguments);
1071 void CallCFunction(Register function, int num_arguments); 1071 void CallCFunction(Register function, int num_arguments);
1072 void CallCFunction(ExternalReference function, 1072 void CallCFunction(ExternalReference function,
1073 int num_reg_arguments, 1073 int num_reg_arguments,
1074 int num_double_arguments); 1074 int num_double_arguments);
1075 void CallCFunction(Register function, 1075 void CallCFunction(Register function,
1076 int num_reg_arguments, 1076 int num_reg_arguments,
1077 int num_double_arguments); 1077 int num_double_arguments);
1078 1078
1079 void GetCFunctionDoubleResult(const DwVfpRegister dst); 1079 void GetCFunctionDoubleResult(const DoubleRegister dst);
1080 1080
1081 // Calls an API function. Allocates HandleScope, extracts returned value 1081 // Calls an API function. Allocates HandleScope, extracts returned value
1082 // from handle and propagates exceptions. Restores context. stack_space 1082 // from handle and propagates exceptions. Restores context. stack_space
1083 // - space to be unwound on exit (includes the call JS arguments space and 1083 // - space to be unwound on exit (includes the call JS arguments space and
1084 // the additional space allocated for the fast call). 1084 // the additional space allocated for the fast call).
1085 void CallApiFunctionAndReturn(ExternalReference function, int stack_space); 1085 void CallApiFunctionAndReturn(ExternalReference function, int stack_space);
1086 1086
1087 // Jump to a runtime routine. 1087 // Jump to a runtime routine.
1088 void JumpToExternalReference(const ExternalReference& builtin); 1088 void JumpToExternalReference(const ExternalReference& builtin);
1089 1089
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1282 1282
1283 // Get the location of a relocated constant (its address in the constant pool) 1283 // Get the location of a relocated constant (its address in the constant pool)
1284 // from its load site. 1284 // from its load site.
1285 void GetRelocatedValueLocation(Register ldr_location, 1285 void GetRelocatedValueLocation(Register ldr_location,
1286 Register result); 1286 Register result);
1287 1287
1288 1288
1289 void ClampUint8(Register output_reg, Register input_reg); 1289 void ClampUint8(Register output_reg, Register input_reg);
1290 1290
1291 void ClampDoubleToUint8(Register result_reg, 1291 void ClampDoubleToUint8(Register result_reg,
1292 DwVfpRegister input_reg, 1292 DoubleRegister input_reg,
1293 DwVfpRegister temp_double_reg); 1293 DoubleRegister temp_double_reg);
1294 1294
1295 1295
1296 void LoadInstanceDescriptors(Register map, Register descriptors); 1296 void LoadInstanceDescriptors(Register map, Register descriptors);
1297 void EnumLength(Register dst, Register map); 1297 void EnumLength(Register dst, Register map);
1298 void NumberOfOwnDescriptors(Register dst, Register map); 1298 void NumberOfOwnDescriptors(Register dst, Register map);
1299 1299
1300 template<typename Field> 1300 template<typename Field>
1301 void DecodeField(Register reg) { 1301 void DecodeField(Register reg) {
1302 static const int shift = Field::kShift; 1302 static const int shift = Field::kShift;
1303 static const int mask = (Field::kMask >> shift) << kSmiTagSize; 1303 static const int mask = (Field::kMask >> shift) << kSmiTagSize;
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1358 static int SafepointRegisterStackIndex(int reg_code); 1358 static int SafepointRegisterStackIndex(int reg_code);
1359 MemOperand SafepointRegisterSlot(Register reg); 1359 MemOperand SafepointRegisterSlot(Register reg);
1360 MemOperand SafepointRegistersAndDoublesSlot(Register reg); 1360 MemOperand SafepointRegistersAndDoublesSlot(Register reg);
1361 1361
1362 bool generating_stub_; 1362 bool generating_stub_;
1363 bool allow_stub_calls_; 1363 bool allow_stub_calls_;
1364 bool has_frame_; 1364 bool has_frame_;
1365 // This handle will be patched with the code object on installation. 1365 // This handle will be patched with the code object on installation.
1366 Handle<Object> code_object_; 1366 Handle<Object> code_object_;
1367 1367
1368 // Needs access to SafepointRegisterStackIndex for compiled frame 1368 // Needs access to SafepointRegisterStackIndex for optimized frame
1369 // traversal. 1369 // traversal.
1370 friend class CompiledFrame; 1370 friend class OptimizedFrame;
1371 }; 1371 };
1372 1372
1373 1373
1374 // The code patcher is used to patch (typically) small parts of code e.g. for 1374 // The code patcher is used to patch (typically) small parts of code e.g. for
1375 // debugging and other types of instrumentation. When using the code patcher 1375 // debugging and other types of instrumentation. When using the code patcher
1376 // the exact number of bytes specified must be emitted. It is not legal to emit 1376 // the exact number of bytes specified must be emitted. It is not legal to emit
1377 // relocation information. If any of these constraints are violated it causes 1377 // relocation information. If any of these constraints are violated it causes
1378 // an assertion to fail. 1378 // an assertion to fail.
1379 class CodePatcher { 1379 class CodePatcher {
1380 public: 1380 public:
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1421 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) 1421 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
1422 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> 1422 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
1423 #else 1423 #else
1424 #define ACCESS_MASM(masm) masm-> 1424 #define ACCESS_MASM(masm) masm->
1425 #endif 1425 #endif
1426 1426
1427 1427
1428 } } // namespace v8::internal 1428 } } // namespace v8::internal
1429 1429
1430 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ 1430 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_
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