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Issue 11498006: Revert 13157, 13145 and 13140: Crankshaft code stubs. (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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1059 void PrepareCallCFunction(int num_reg_arguments, 1059 void PrepareCallCFunction(int num_reg_arguments,
1060 int num_double_registers, 1060 int num_double_registers,
1061 Register scratch); 1061 Register scratch);
1062 void PrepareCallCFunction(int num_reg_arguments, 1062 void PrepareCallCFunction(int num_reg_arguments,
1063 Register scratch); 1063 Register scratch);
1064 1064
1065 // There are two ways of passing double arguments on ARM, depending on 1065 // There are two ways of passing double arguments on ARM, depending on
1066 // whether soft or hard floating point ABI is used. These functions 1066 // whether soft or hard floating point ABI is used. These functions
1067 // abstract parameter passing for the three different ways we call 1067 // abstract parameter passing for the three different ways we call
1068 // C functions from generated code. 1068 // C functions from generated code.
1069 void SetCallCDoubleArguments(DwVfpRegister dreg); 1069 void SetCallCDoubleArguments(DoubleRegister dreg);
1070 void SetCallCDoubleArguments(DwVfpRegister dreg1, DwVfpRegister dreg2); 1070 void SetCallCDoubleArguments(DoubleRegister dreg1, DoubleRegister dreg2);
1071 void SetCallCDoubleArguments(DwVfpRegister dreg, Register reg); 1071 void SetCallCDoubleArguments(DoubleRegister dreg, Register reg);
1072 1072
1073 // Calls a C function and cleans up the space for arguments allocated 1073 // Calls a C function and cleans up the space for arguments allocated
1074 // by PrepareCallCFunction. The called function is not allowed to trigger a 1074 // by PrepareCallCFunction. The called function is not allowed to trigger a
1075 // garbage collection, since that might move the code and invalidate the 1075 // garbage collection, since that might move the code and invalidate the
1076 // return address (unless this is somehow accounted for by the called 1076 // return address (unless this is somehow accounted for by the called
1077 // function). 1077 // function).
1078 void CallCFunction(ExternalReference function, int num_arguments); 1078 void CallCFunction(ExternalReference function, int num_arguments);
1079 void CallCFunction(Register function, int num_arguments); 1079 void CallCFunction(Register function, int num_arguments);
1080 void CallCFunction(ExternalReference function, 1080 void CallCFunction(ExternalReference function,
1081 int num_reg_arguments, 1081 int num_reg_arguments,
1082 int num_double_arguments); 1082 int num_double_arguments);
1083 void CallCFunction(Register function, 1083 void CallCFunction(Register function,
1084 int num_reg_arguments, 1084 int num_reg_arguments,
1085 int num_double_arguments); 1085 int num_double_arguments);
1086 1086
1087 void GetCFunctionDoubleResult(const DwVfpRegister dst); 1087 void GetCFunctionDoubleResult(const DoubleRegister dst);
1088 1088
1089 // Calls an API function. Allocates HandleScope, extracts returned value 1089 // Calls an API function. Allocates HandleScope, extracts returned value
1090 // from handle and propagates exceptions. Restores context. stack_space 1090 // from handle and propagates exceptions. Restores context. stack_space
1091 // - space to be unwound on exit (includes the call JS arguments space and 1091 // - space to be unwound on exit (includes the call JS arguments space and
1092 // the additional space allocated for the fast call). 1092 // the additional space allocated for the fast call).
1093 void CallApiFunctionAndReturn(ExternalReference function, int stack_space); 1093 void CallApiFunctionAndReturn(ExternalReference function, int stack_space);
1094 1094
1095 // Jump to a runtime routine. 1095 // Jump to a runtime routine.
1096 void JumpToExternalReference(const ExternalReference& builtin); 1096 void JumpToExternalReference(const ExternalReference& builtin);
1097 1097
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1290 1290
1291 // Get the location of a relocated constant (its address in the constant pool) 1291 // Get the location of a relocated constant (its address in the constant pool)
1292 // from its load site. 1292 // from its load site.
1293 void GetRelocatedValueLocation(Register ldr_location, 1293 void GetRelocatedValueLocation(Register ldr_location,
1294 Register result); 1294 Register result);
1295 1295
1296 1296
1297 void ClampUint8(Register output_reg, Register input_reg); 1297 void ClampUint8(Register output_reg, Register input_reg);
1298 1298
1299 void ClampDoubleToUint8(Register result_reg, 1299 void ClampDoubleToUint8(Register result_reg,
1300 DwVfpRegister input_reg, 1300 DoubleRegister input_reg,
1301 DwVfpRegister temp_double_reg); 1301 DoubleRegister temp_double_reg);
1302 1302
1303 1303
1304 void LoadInstanceDescriptors(Register map, Register descriptors); 1304 void LoadInstanceDescriptors(Register map, Register descriptors);
1305 void EnumLength(Register dst, Register map); 1305 void EnumLength(Register dst, Register map);
1306 void NumberOfOwnDescriptors(Register dst, Register map); 1306 void NumberOfOwnDescriptors(Register dst, Register map);
1307 1307
1308 template<typename Field> 1308 template<typename Field>
1309 void DecodeField(Register reg) { 1309 void DecodeField(Register reg) {
1310 static const int shift = Field::kShift; 1310 static const int shift = Field::kShift;
1311 static const int mask = (Field::kMask >> shift) << kSmiTagSize; 1311 static const int mask = (Field::kMask >> shift) << kSmiTagSize;
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1366 static int SafepointRegisterStackIndex(int reg_code); 1366 static int SafepointRegisterStackIndex(int reg_code);
1367 MemOperand SafepointRegisterSlot(Register reg); 1367 MemOperand SafepointRegisterSlot(Register reg);
1368 MemOperand SafepointRegistersAndDoublesSlot(Register reg); 1368 MemOperand SafepointRegistersAndDoublesSlot(Register reg);
1369 1369
1370 bool generating_stub_; 1370 bool generating_stub_;
1371 bool allow_stub_calls_; 1371 bool allow_stub_calls_;
1372 bool has_frame_; 1372 bool has_frame_;
1373 // This handle will be patched with the code object on installation. 1373 // This handle will be patched with the code object on installation.
1374 Handle<Object> code_object_; 1374 Handle<Object> code_object_;
1375 1375
1376 // Needs access to SafepointRegisterStackIndex for compiled frame 1376 // Needs access to SafepointRegisterStackIndex for optimized frame
1377 // traversal. 1377 // traversal.
1378 friend class CompiledFrame; 1378 friend class OptimizedFrame;
1379 }; 1379 };
1380 1380
1381 1381
1382 // The code patcher is used to patch (typically) small parts of code e.g. for 1382 // The code patcher is used to patch (typically) small parts of code e.g. for
1383 // debugging and other types of instrumentation. When using the code patcher 1383 // debugging and other types of instrumentation. When using the code patcher
1384 // the exact number of bytes specified must be emitted. It is not legal to emit 1384 // the exact number of bytes specified must be emitted. It is not legal to emit
1385 // relocation information. If any of these constraints are violated it causes 1385 // relocation information. If any of these constraints are violated it causes
1386 // an assertion to fail. 1386 // an assertion to fail.
1387 class CodePatcher { 1387 class CodePatcher {
1388 public: 1388 public:
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1429 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) 1429 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
1430 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> 1430 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
1431 #else 1431 #else
1432 #define ACCESS_MASM(masm) masm-> 1432 #define ACCESS_MASM(masm) masm->
1433 #endif 1433 #endif
1434 1434
1435 1435
1436 } } // namespace v8::internal 1436 } } // namespace v8::internal
1437 1437
1438 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ 1438 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_
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