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Issue 6135004: Cleanup unused code from the type oracle. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 10 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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164 return Handle<JSObject>(JSObject::cast(function->instance_prototype())); 164 return Handle<JSObject>(JSObject::cast(function->instance_prototype()));
165 } 165 }
166 166
167 167
168 bool TypeFeedbackOracle::LoadIsBuiltin(Property* expr, Builtins::Name id) { 168 bool TypeFeedbackOracle::LoadIsBuiltin(Property* expr, Builtins::Name id) {
169 Handle<Object> object = GetElement(map_, expr->position()); 169 Handle<Object> object = GetElement(map_, expr->position());
170 return *object == Builtins::builtin(id); 170 return *object == Builtins::builtin(id);
171 } 171 }
172 172
173 173
174 TypeInfo TypeFeedbackOracle::CompareType(CompareOperation* expr, Side side) { 174 TypeInfo TypeFeedbackOracle::CompareType(CompareOperation* expr) {
175 Handle<Object> object = GetElement(map_, expr->position()); 175 Handle<Object> object = GetElement(map_, expr->position());
176 TypeInfo unknown = TypeInfo::Unknown(); 176 TypeInfo unknown = TypeInfo::Unknown();
177 if (!object->IsCode()) return unknown; 177 if (!object->IsCode()) return unknown;
178 Handle<Code> code = Handle<Code>::cast(object); 178 Handle<Code> code = Handle<Code>::cast(object);
179 if (!code->is_compare_ic_stub()) return unknown; 179 if (!code->is_compare_ic_stub()) return unknown;
180 180
181 CompareIC::State state = static_cast<CompareIC::State>(code->compare_state()); 181 CompareIC::State state = static_cast<CompareIC::State>(code->compare_state());
182 switch (state) { 182 switch (state) {
183 case CompareIC::UNINITIALIZED: 183 case CompareIC::UNINITIALIZED:
184 // Uninitialized means never executed. 184 // Uninitialized means never executed.
185 // TODO(fschneider): Introduce a separate value for never-executed ICs. 185 // TODO(fschneider): Introduce a separate value for never-executed ICs.
186 return unknown; 186 return unknown;
187 case CompareIC::SMIS: 187 case CompareIC::SMIS:
188 return TypeInfo::Smi(); 188 return TypeInfo::Smi();
189 case CompareIC::HEAP_NUMBERS: 189 case CompareIC::HEAP_NUMBERS:
190 return TypeInfo::Number(); 190 return TypeInfo::Number();
191 case CompareIC::OBJECTS: 191 case CompareIC::OBJECTS:
192 // TODO(kasperl): We really need a type for JS objects here. 192 // TODO(kasperl): We really need a type for JS objects here.
193 return TypeInfo::NonPrimitive(); 193 return TypeInfo::NonPrimitive();
194 case CompareIC::GENERIC: 194 case CompareIC::GENERIC:
195 default: 195 default:
196 return unknown; 196 return unknown;
197 } 197 }
198 } 198 }
199 199
200 200
201 TypeInfo TypeFeedbackOracle::BinaryType(BinaryOperation* expr, Side side) { 201 TypeInfo TypeFeedbackOracle::BinaryType(BinaryOperation* expr) {
202 Handle<Object> object = GetElement(map_, expr->position()); 202 Handle<Object> object = GetElement(map_, expr->position());
203 TypeInfo unknown = TypeInfo::Unknown(); 203 TypeInfo unknown = TypeInfo::Unknown();
204 if (!object->IsCode()) return unknown; 204 if (!object->IsCode()) return unknown;
205 Handle<Code> code = Handle<Code>::cast(object); 205 Handle<Code> code = Handle<Code>::cast(object);
206 if (code->is_binary_op_stub()) { 206 if (code->is_binary_op_stub()) {
207 BinaryOpIC::TypeInfo type = static_cast<BinaryOpIC::TypeInfo>( 207 BinaryOpIC::TypeInfo type = static_cast<BinaryOpIC::TypeInfo>(
208 code->binary_op_type()); 208 code->binary_op_type());
209 switch (type) { 209 switch (type) {
210 case BinaryOpIC::UNINIT_OR_SMI: 210 case BinaryOpIC::UNINIT_OR_SMI:
211 return TypeInfo::Smi(); 211 return TypeInfo::Smi();
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397 source_positions->Add(position); 397 source_positions->Add(position);
398 } 398 }
399 } else { 399 } else {
400 ASSERT(RelocInfo::IsPosition(mode)); 400 ASSERT(RelocInfo::IsPosition(mode));
401 position = static_cast<int>(info->data()); 401 position = static_cast<int>(info->data());
402 } 402 }
403 } 403 }
404 } 404 }
405 405
406 } } // namespace v8::internal 406 } } // namespace v8::internal
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