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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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2158 ? isolate()->builtins()->StoreIC_Initialize_Strict() | 2158 ? isolate()->builtins()->StoreIC_Initialize_Strict() |
2159 : isolate()->builtins()->StoreIC_Initialize(); | 2159 : isolate()->builtins()->StoreIC_Initialize(); |
2160 CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr); | 2160 CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr); |
2161 } | 2161 } |
2162 | 2162 |
2163 | 2163 |
2164 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { | 2164 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { |
2165 Register context = ToRegister(instr->context()); | 2165 Register context = ToRegister(instr->context()); |
2166 Register result = ToRegister(instr->result()); | 2166 Register result = ToRegister(instr->result()); |
2167 __ mov(result, ContextOperand(context, instr->slot_index())); | 2167 __ mov(result, ContextOperand(context, instr->slot_index())); |
| 2168 |
2168 if (instr->hydrogen()->RequiresHoleCheck()) { | 2169 if (instr->hydrogen()->RequiresHoleCheck()) { |
2169 __ cmp(result, factory()->the_hole_value()); | 2170 __ cmp(result, factory()->the_hole_value()); |
2170 DeoptimizeIf(equal, instr->environment()); | 2171 if (instr->hydrogen()->DeoptimizesOnHole()) { |
| 2172 DeoptimizeIf(equal, instr->environment()); |
| 2173 } else { |
| 2174 Label is_not_hole; |
| 2175 __ j(not_equal, &is_not_hole, Label::kNear); |
| 2176 __ mov(result, factory()->undefined_value()); |
| 2177 __ bind(&is_not_hole); |
| 2178 } |
2171 } | 2179 } |
2172 } | 2180 } |
2173 | 2181 |
2174 | 2182 |
2175 void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { | 2183 void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { |
2176 Register context = ToRegister(instr->context()); | 2184 Register context = ToRegister(instr->context()); |
2177 Register value = ToRegister(instr->value()); | 2185 Register value = ToRegister(instr->value()); |
| 2186 |
| 2187 Label skip_assignment; |
| 2188 |
2178 Operand target = ContextOperand(context, instr->slot_index()); | 2189 Operand target = ContextOperand(context, instr->slot_index()); |
2179 if (instr->hydrogen()->RequiresHoleCheck()) { | 2190 if (instr->hydrogen()->RequiresHoleCheck()) { |
2180 __ cmp(target, factory()->the_hole_value()); | 2191 __ cmp(target, factory()->the_hole_value()); |
2181 DeoptimizeIf(equal, instr->environment()); | 2192 if (instr->hydrogen()->DeoptimizesOnHole()) { |
| 2193 DeoptimizeIf(equal, instr->environment()); |
| 2194 } else { |
| 2195 __ j(not_equal, &skip_assignment, Label::kNear); |
| 2196 } |
2182 } | 2197 } |
| 2198 |
2183 __ mov(target, value); | 2199 __ mov(target, value); |
2184 if (instr->hydrogen()->NeedsWriteBarrier()) { | 2200 if (instr->hydrogen()->NeedsWriteBarrier()) { |
2185 HType type = instr->hydrogen()->value()->type(); | 2201 HType type = instr->hydrogen()->value()->type(); |
2186 SmiCheck check_needed = | 2202 SmiCheck check_needed = |
2187 type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; | 2203 type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
2188 Register temp = ToRegister(instr->TempAt(0)); | 2204 Register temp = ToRegister(instr->TempAt(0)); |
2189 int offset = Context::SlotOffset(instr->slot_index()); | 2205 int offset = Context::SlotOffset(instr->slot_index()); |
2190 __ RecordWriteContextSlot(context, | 2206 __ RecordWriteContextSlot(context, |
2191 offset, | 2207 offset, |
2192 value, | 2208 value, |
2193 temp, | 2209 temp, |
2194 kSaveFPRegs, | 2210 kSaveFPRegs, |
2195 EMIT_REMEMBERED_SET, | 2211 EMIT_REMEMBERED_SET, |
2196 check_needed); | 2212 check_needed); |
2197 } | 2213 } |
| 2214 |
| 2215 __ bind(&skip_assignment); |
2198 } | 2216 } |
2199 | 2217 |
2200 | 2218 |
2201 void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { | 2219 void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { |
2202 Register object = ToRegister(instr->object()); | 2220 Register object = ToRegister(instr->object()); |
2203 Register result = ToRegister(instr->result()); | 2221 Register result = ToRegister(instr->result()); |
2204 if (instr->hydrogen()->is_in_object()) { | 2222 if (instr->hydrogen()->is_in_object()) { |
2205 __ mov(result, FieldOperand(object, instr->hydrogen()->offset())); | 2223 __ mov(result, FieldOperand(object, instr->hydrogen()->offset())); |
2206 } else { | 2224 } else { |
2207 __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset)); | 2225 __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset)); |
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4617 this, pointers, Safepoint::kLazyDeopt); | 4635 this, pointers, Safepoint::kLazyDeopt); |
4618 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); | 4636 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); |
4619 } | 4637 } |
4620 | 4638 |
4621 | 4639 |
4622 #undef __ | 4640 #undef __ |
4623 | 4641 |
4624 } } // namespace v8::internal | 4642 } } // namespace v8::internal |
4625 | 4643 |
4626 #endif // V8_TARGET_ARCH_IA32 | 4644 #endif // V8_TARGET_ARCH_IA32 |
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