Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5 | #if V8_TARGET_ARCH_IA32 |
| 6 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7 | #include "src/ic/handler-compiler.h" |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 8 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 9 | #include "src/api-arguments.h" |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 10 | #include "src/field-type.h" |
| 11 | #include "src/ic/call-optimization.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 12 | #include "src/ic/ic.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 13 | #include "src/isolate-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 14 | |
| 15 | namespace v8 { |
| 16 | namespace internal { |
| 17 | |
| 18 | #define __ ACCESS_MASM(masm) |
| 19 | |
| 20 | |
| 21 | void NamedLoadHandlerCompiler::GenerateLoadViaGetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 22 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 23 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 24 | { |
| 25 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 26 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 27 | // Save context register |
| 28 | __ push(esi); |
| 29 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 30 | if (accessor_index >= 0) { |
| 31 | DCHECK(!holder.is(scratch)); |
| 32 | DCHECK(!receiver.is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 33 | // Call the JavaScript getter with the receiver on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 34 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 36 | __ mov(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 37 | FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 38 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 39 | } |
| 40 | __ push(receiver); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 41 | __ LoadAccessor(edi, holder, accessor_index, ACCESSOR_GETTER); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 42 | __ Set(eax, 0); |
| 43 | __ Call(masm->isolate()->builtins()->CallFunction( |
| 44 | ConvertReceiverMode::kNotNullOrUndefined), |
| 45 | RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 46 | } else { |
| 47 | // If we generate a global code snippet for deoptimization only, remember |
| 48 | // the place to continue after deoptimization. |
| 49 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 50 | } |
| 51 | |
| 52 | // Restore context register. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 53 | __ pop(esi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 54 | } |
| 55 | __ ret(0); |
| 56 | } |
| 57 | |
| 58 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 59 | void PropertyHandlerCompiler::PushVectorAndSlot(Register vector, |
| 60 | Register slot) { |
| 61 | MacroAssembler* masm = this->masm(); |
| 62 | __ push(vector); |
| 63 | __ push(slot); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | void PropertyHandlerCompiler::PopVectorAndSlot(Register vector, Register slot) { |
| 68 | MacroAssembler* masm = this->masm(); |
| 69 | __ pop(slot); |
| 70 | __ pop(vector); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | void PropertyHandlerCompiler::DiscardVectorAndSlot() { |
| 75 | MacroAssembler* masm = this->masm(); |
| 76 | // Remove vector and slot. |
| 77 | __ add(esp, Immediate(2 * kPointerSize)); |
| 78 | } |
| 79 | |
| 80 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 81 | void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup( |
| 82 | MacroAssembler* masm, Label* miss_label, Register receiver, |
| 83 | Handle<Name> name, Register scratch0, Register scratch1) { |
| 84 | DCHECK(name->IsUniqueName()); |
| 85 | DCHECK(!receiver.is(scratch0)); |
| 86 | Counters* counters = masm->isolate()->counters(); |
| 87 | __ IncrementCounter(counters->negative_lookups(), 1); |
| 88 | __ IncrementCounter(counters->negative_lookups_miss(), 1); |
| 89 | |
| 90 | __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 91 | |
| 92 | const int kInterceptorOrAccessCheckNeededMask = |
| 93 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 94 | |
| 95 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 96 | __ test_b(FieldOperand(scratch0, Map::kBitFieldOffset), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 97 | Immediate(kInterceptorOrAccessCheckNeededMask)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 98 | __ j(not_zero, miss_label); |
| 99 | |
| 100 | // Check that receiver is a JSObject. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 101 | __ CmpInstanceType(scratch0, FIRST_JS_RECEIVER_TYPE); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 102 | __ j(below, miss_label); |
| 103 | |
| 104 | // Load properties array. |
| 105 | Register properties = scratch0; |
| 106 | __ mov(properties, FieldOperand(receiver, JSObject::kPropertiesOffset)); |
| 107 | |
| 108 | // Check that the properties array is a dictionary. |
| 109 | __ cmp(FieldOperand(properties, HeapObject::kMapOffset), |
| 110 | Immediate(masm->isolate()->factory()->hash_table_map())); |
| 111 | __ j(not_equal, miss_label); |
| 112 | |
| 113 | Label done; |
| 114 | NameDictionaryLookupStub::GenerateNegativeLookup(masm, miss_label, &done, |
| 115 | properties, name, scratch1); |
| 116 | __ bind(&done); |
| 117 | __ DecrementCounter(counters->negative_lookups_miss(), 1); |
| 118 | } |
| 119 | |
| 120 | |
| 121 | void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 122 | MacroAssembler* masm, int index, Register result, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 123 | __ LoadGlobalFunction(index, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 124 | // Load its initial map. The global functions all have initial maps. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 125 | __ mov(result, |
| 126 | FieldOperand(result, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 127 | // Load the prototype from the initial map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 128 | __ mov(result, FieldOperand(result, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | |
| 132 | void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype( |
| 133 | MacroAssembler* masm, Register receiver, Register scratch1, |
| 134 | Register scratch2, Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 135 | // TODO(mvstanton): This isn't used on ia32. Move all the other |
| 136 | // platform implementations into a code stub so this method can be removed. |
| 137 | UNREACHABLE(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | |
| 141 | // Generate call to api function. |
| 142 | // This function uses push() to generate smaller, faster code than |
| 143 | // the version above. It is an optimization that should will be removed |
| 144 | // when api call ICs are generated in hydrogen. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 145 | void PropertyHandlerCompiler::GenerateApiAccessorCall( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 146 | MacroAssembler* masm, const CallOptimization& optimization, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 147 | Handle<Map> receiver_map, Register receiver, Register scratch, |
| 148 | bool is_store, Register store_parameter, Register accessor_holder, |
| 149 | int accessor_index) { |
| 150 | DCHECK(!accessor_holder.is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 151 | // Copy return value. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 152 | __ pop(scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 153 | // receiver |
| 154 | __ push(receiver); |
| 155 | // Write the arguments to stack frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 156 | if (is_store) { |
| 157 | DCHECK(!receiver.is(store_parameter)); |
| 158 | DCHECK(!scratch.is(store_parameter)); |
| 159 | __ push(store_parameter); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 160 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 161 | __ push(scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 162 | // Stack now matches JSFunction abi. |
| 163 | DCHECK(optimization.is_simple_api_call()); |
| 164 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 165 | // Abi for CallApiCallbackStub. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 166 | Register callee = edi; |
| 167 | Register data = ebx; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 168 | Register holder = ecx; |
| 169 | Register api_function_address = edx; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 170 | scratch = no_reg; |
| 171 | |
| 172 | // Put callee in place. |
| 173 | __ LoadAccessor(callee, accessor_holder, accessor_index, |
| 174 | is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 175 | |
| 176 | // Put holder in place. |
| 177 | CallOptimization::HolderLookup holder_lookup; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 178 | int holder_depth = 0; |
| 179 | optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup, |
| 180 | &holder_depth); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 181 | switch (holder_lookup) { |
| 182 | case CallOptimization::kHolderIsReceiver: |
| 183 | __ Move(holder, receiver); |
| 184 | break; |
| 185 | case CallOptimization::kHolderFound: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 186 | __ mov(holder, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 187 | __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset)); |
| 188 | for (int i = 1; i < holder_depth; i++) { |
| 189 | __ mov(holder, FieldOperand(holder, HeapObject::kMapOffset)); |
| 190 | __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset)); |
| 191 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 192 | break; |
| 193 | case CallOptimization::kHolderNotFound: |
| 194 | UNREACHABLE(); |
| 195 | break; |
| 196 | } |
| 197 | |
| 198 | Isolate* isolate = masm->isolate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 199 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 200 | bool call_data_undefined = false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 201 | // Put call data in place. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 202 | if (api_call_info->data()->IsUndefined(isolate)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 203 | call_data_undefined = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 204 | __ mov(data, Immediate(isolate->factory()->undefined_value())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 205 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 206 | if (optimization.is_constant_call()) { |
| 207 | __ mov(data, FieldOperand(callee, JSFunction::kSharedFunctionInfoOffset)); |
| 208 | __ mov(data, FieldOperand(data, SharedFunctionInfo::kFunctionDataOffset)); |
| 209 | __ mov(data, FieldOperand(data, FunctionTemplateInfo::kCallCodeOffset)); |
| 210 | } else { |
| 211 | __ mov(data, FieldOperand(callee, FunctionTemplateInfo::kCallCodeOffset)); |
| 212 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 213 | __ mov(data, FieldOperand(data, CallHandlerInfo::kDataOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 214 | } |
| 215 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 216 | if (api_call_info->fast_handler()->IsCode()) { |
| 217 | // Just tail call into the code. |
| 218 | __ Jump(handle(Code::cast(api_call_info->fast_handler())), |
| 219 | RelocInfo::CODE_TARGET); |
| 220 | return; |
| 221 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 222 | // Put api_function_address in place. |
| 223 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 224 | __ mov(api_function_address, Immediate(function_address)); |
| 225 | |
| 226 | // Jump to stub. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 227 | CallApiCallbackStub stub(isolate, is_store, call_data_undefined, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 228 | !optimization.is_constant_call()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 229 | __ TailCallStub(&stub); |
| 230 | } |
| 231 | |
| 232 | |
| 233 | // Generate code to check that a global property cell is empty. Create |
| 234 | // the property cell at compilation time if no cell exists for the |
| 235 | // property. |
| 236 | void PropertyHandlerCompiler::GenerateCheckPropertyCell( |
| 237 | MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, |
| 238 | Register scratch, Label* miss) { |
| 239 | Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 240 | Isolate* isolate = masm->isolate(); |
| 241 | DCHECK(cell->value()->IsTheHole(isolate)); |
| 242 | Handle<WeakCell> weak_cell = isolate->factory()->NewWeakCell(cell); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 243 | __ LoadWeakValue(scratch, weak_cell, miss); |
| 244 | __ cmp(FieldOperand(scratch, PropertyCell::kValueOffset), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 245 | Immediate(isolate->factory()->the_hole_value())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 246 | __ j(not_equal, miss); |
| 247 | } |
| 248 | |
| 249 | |
| 250 | void NamedStoreHandlerCompiler::GenerateStoreViaSetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 251 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 252 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 253 | // ----------- S t a t e ------------- |
| 254 | // -- esp[0] : return address |
| 255 | // ----------------------------------- |
| 256 | { |
| 257 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 258 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 259 | // Save context register |
| 260 | __ push(esi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 261 | // Save value register, so we can restore it later. |
| 262 | __ push(value()); |
| 263 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 264 | if (accessor_index >= 0) { |
| 265 | DCHECK(!holder.is(scratch)); |
| 266 | DCHECK(!receiver.is(scratch)); |
| 267 | DCHECK(!value().is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 268 | // Call the JavaScript setter with receiver and value on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 269 | if (map->IsJSGlobalObjectMap()) { |
| 270 | __ mov(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 271 | FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 272 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 273 | } |
| 274 | __ push(receiver); |
| 275 | __ push(value()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 276 | __ LoadAccessor(edi, holder, accessor_index, ACCESSOR_SETTER); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 277 | __ Set(eax, 1); |
| 278 | __ Call(masm->isolate()->builtins()->CallFunction( |
| 279 | ConvertReceiverMode::kNotNullOrUndefined), |
| 280 | RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 281 | } else { |
| 282 | // If we generate a global code snippet for deoptimization only, remember |
| 283 | // the place to continue after deoptimization. |
| 284 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 285 | } |
| 286 | |
| 287 | // We have to return the passed value, not the return value of the setter. |
| 288 | __ pop(eax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 289 | // Restore context register. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 290 | __ pop(esi); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 291 | } |
| 292 | __ ret(0); |
| 293 | } |
| 294 | |
| 295 | |
| 296 | static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, |
| 297 | Register holder, Register name, |
| 298 | Handle<JSObject> holder_obj) { |
| 299 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 300 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 1); |
| 301 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 2); |
| 302 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 3); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 303 | __ push(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 304 | __ push(receiver); |
| 305 | __ push(holder); |
| 306 | } |
| 307 | |
| 308 | |
| 309 | static void CompileCallLoadPropertyWithInterceptor( |
| 310 | MacroAssembler* masm, Register receiver, Register holder, Register name, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 311 | Handle<JSObject> holder_obj, Runtime::FunctionId id) { |
| 312 | DCHECK(NamedLoadHandlerCompiler::kInterceptorArgsLength == |
| 313 | Runtime::FunctionForId(id)->nargs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 314 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 315 | __ CallRuntime(id); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 316 | } |
| 317 | |
| 318 | |
| 319 | static void StoreIC_PushArgs(MacroAssembler* masm) { |
| 320 | Register receiver = StoreDescriptor::ReceiverRegister(); |
| 321 | Register name = StoreDescriptor::NameRegister(); |
| 322 | Register value = StoreDescriptor::ValueRegister(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 323 | Register slot = VectorStoreICDescriptor::SlotRegister(); |
| 324 | Register vector = VectorStoreICDescriptor::VectorRegister(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 325 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 326 | __ xchg(receiver, Operand(esp, 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 327 | __ push(name); |
| 328 | __ push(value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 329 | __ push(slot); |
| 330 | __ push(vector); |
| 331 | __ push(receiver); // which contains the return address. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | |
| 335 | void NamedStoreHandlerCompiler::GenerateSlow(MacroAssembler* masm) { |
| 336 | // Return address is on the stack. |
| 337 | StoreIC_PushArgs(masm); |
| 338 | |
| 339 | // Do tail-call to runtime routine. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 340 | __ TailCallRuntime(Runtime::kStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | |
| 344 | void ElementHandlerCompiler::GenerateStoreSlow(MacroAssembler* masm) { |
| 345 | // Return address is on the stack. |
| 346 | StoreIC_PushArgs(masm); |
| 347 | |
| 348 | // Do tail-call to runtime routine. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 349 | __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | |
| 353 | #undef __ |
| 354 | #define __ ACCESS_MASM(masm()) |
| 355 | |
| 356 | |
| 357 | void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label, |
| 358 | Handle<Name> name) { |
| 359 | if (!label->is_unused()) { |
| 360 | __ bind(label); |
| 361 | __ mov(this->name(), Immediate(name)); |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 366 | void NamedStoreHandlerCompiler::GenerateRestoreName(Handle<Name> name) { |
| 367 | __ mov(this->name(), Immediate(name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 368 | } |
| 369 | |
| 370 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 371 | void NamedStoreHandlerCompiler::RearrangeVectorAndSlot( |
| 372 | Register current_map, Register destination_map) { |
| 373 | DCHECK(destination_map.is(StoreTransitionHelper::MapRegister())); |
| 374 | DCHECK(current_map.is(StoreTransitionHelper::VectorRegister())); |
| 375 | ExternalReference virtual_slot = |
| 376 | ExternalReference::virtual_slot_register(isolate()); |
| 377 | __ mov(destination_map, current_map); |
| 378 | __ pop(current_map); |
| 379 | __ mov(Operand::StaticVariable(virtual_slot), current_map); |
| 380 | __ pop(current_map); // put vector in place. |
| 381 | } |
| 382 | |
| 383 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 384 | void NamedStoreHandlerCompiler::GenerateRestoreMap(Handle<Map> transition, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 385 | Register map_reg, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 386 | Register scratch, |
| 387 | Label* miss) { |
| 388 | Handle<WeakCell> cell = Map::WeakCellForMap(transition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 389 | DCHECK(!map_reg.is(scratch)); |
| 390 | __ LoadWeakValue(map_reg, cell, miss); |
| 391 | if (transition->CanBeDeprecated()) { |
| 392 | __ mov(scratch, FieldOperand(map_reg, Map::kBitField3Offset)); |
| 393 | __ and_(scratch, Immediate(Map::Deprecated::kMask)); |
| 394 | __ j(not_zero, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 395 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 396 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 397 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 398 | |
| 399 | void NamedStoreHandlerCompiler::GenerateConstantCheck(Register map_reg, |
| 400 | int descriptor, |
| 401 | Register value_reg, |
| 402 | Register scratch, |
| 403 | Label* miss_label) { |
| 404 | DCHECK(!map_reg.is(scratch)); |
| 405 | DCHECK(!map_reg.is(value_reg)); |
| 406 | DCHECK(!value_reg.is(scratch)); |
| 407 | __ LoadInstanceDescriptors(map_reg, scratch); |
| 408 | __ mov(scratch, |
| 409 | FieldOperand(scratch, DescriptorArray::GetValueOffset(descriptor))); |
| 410 | __ cmp(value_reg, scratch); |
| 411 | __ j(not_equal, miss_label); |
| 412 | } |
| 413 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 414 | void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(FieldType* field_type, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 415 | Register value_reg, |
| 416 | Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 417 | Register map_reg = scratch1(); |
| 418 | Register scratch = scratch2(); |
| 419 | DCHECK(!value_reg.is(map_reg)); |
| 420 | DCHECK(!value_reg.is(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 421 | __ JumpIfSmi(value_reg, miss_label); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 422 | if (field_type->IsClass()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 423 | __ mov(map_reg, FieldOperand(value_reg, HeapObject::kMapOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 424 | __ CmpWeakValue(map_reg, Map::WeakCellForMap(field_type->AsClass()), |
| 425 | scratch); |
| 426 | __ j(not_equal, miss_label); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 427 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 428 | } |
| 429 | |
| 430 | |
| 431 | Register PropertyHandlerCompiler::CheckPrototypes( |
| 432 | Register object_reg, Register holder_reg, Register scratch1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 433 | Register scratch2, Handle<Name> name, Label* miss, PrototypeCheckType check, |
| 434 | ReturnHolder return_what) { |
| 435 | Handle<Map> receiver_map = map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 436 | |
| 437 | // Make sure there's no overlap between holder and object registers. |
| 438 | DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 439 | DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg) && |
| 440 | !scratch2.is(scratch1)); |
| 441 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 442 | Handle<Cell> validity_cell = |
| 443 | Map::GetOrCreatePrototypeChainValidityCell(receiver_map, isolate()); |
| 444 | if (!validity_cell.is_null()) { |
| 445 | DCHECK_EQ(Smi::FromInt(Map::kPrototypeChainValid), validity_cell->value()); |
| 446 | // Operand::ForCell(...) points to the cell's payload! |
| 447 | __ cmp(Operand::ForCell(validity_cell), |
| 448 | Immediate(Smi::FromInt(Map::kPrototypeChainValid))); |
| 449 | __ j(not_equal, miss); |
| 450 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 451 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 452 | // The prototype chain of primitives (and their JSValue wrappers) depends |
| 453 | // on the native context, which can't be guarded by validity cells. |
| 454 | // |object_reg| holds the native context specific prototype in this case; |
| 455 | // we need to check its map. |
| 456 | if (check == CHECK_ALL_MAPS) { |
| 457 | __ mov(scratch1, FieldOperand(object_reg, HeapObject::kMapOffset)); |
| 458 | Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map); |
| 459 | __ CmpWeakValue(scratch1, cell, scratch2); |
| 460 | __ j(not_equal, miss); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 461 | } |
| 462 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 463 | // Keep track of the current object in register reg. |
| 464 | Register reg = object_reg; |
| 465 | int depth = 0; |
| 466 | |
| 467 | Handle<JSObject> current = Handle<JSObject>::null(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 468 | if (receiver_map->IsJSGlobalObjectMap()) { |
| 469 | current = isolate()->global_object(); |
| 470 | } |
| 471 | |
| 472 | // Check access rights to the global object. This has to happen after |
| 473 | // the map check so that we know that the object is actually a global |
| 474 | // object. |
| 475 | // This allows us to install generated handlers for accesses to the |
| 476 | // global proxy (as opposed to using slow ICs). See corresponding code |
| 477 | // in LookupForRead(). |
| 478 | if (receiver_map->IsJSGlobalProxyMap()) { |
| 479 | __ CheckAccessGlobalProxy(reg, scratch1, scratch2, miss); |
| 480 | } |
| 481 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 482 | Handle<JSObject> prototype = Handle<JSObject>::null(); |
| 483 | Handle<Map> current_map = receiver_map; |
| 484 | Handle<Map> holder_map(holder()->map()); |
| 485 | // Traverse the prototype chain and check the maps in the prototype chain for |
| 486 | // fast and global objects or do negative lookup for normal objects. |
| 487 | while (!current_map.is_identical_to(holder_map)) { |
| 488 | ++depth; |
| 489 | |
| 490 | // Only global objects and objects that do not require access |
| 491 | // checks are allowed in stubs. |
| 492 | DCHECK(current_map->IsJSGlobalProxyMap() || |
| 493 | !current_map->is_access_check_needed()); |
| 494 | |
| 495 | prototype = handle(JSObject::cast(current_map->prototype())); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 496 | if (current_map->IsJSGlobalObjectMap()) { |
| 497 | GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current), |
| 498 | name, scratch2, miss); |
| 499 | } else if (current_map->is_dictionary_map()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 500 | DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
| 501 | if (!name->IsUniqueName()) { |
| 502 | DCHECK(name->IsString()); |
| 503 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
| 504 | } |
| 505 | DCHECK(current.is_null() || |
| 506 | current->property_dictionary()->FindEntry(name) == |
| 507 | NameDictionary::kNotFound); |
| 508 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 509 | if (depth > 1) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 510 | // TODO(jkummerow): Cache and re-use weak cell. |
| 511 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
| 512 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 513 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1, |
| 514 | scratch2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 515 | } |
| 516 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 517 | reg = holder_reg; // From now on the object will be in holder_reg. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 518 | // Go to the next object in the prototype chain. |
| 519 | current = prototype; |
| 520 | current_map = handle(current->map()); |
| 521 | } |
| 522 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 523 | DCHECK(!current_map->IsJSGlobalProxyMap()); |
| 524 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 525 | // Log the check depth. |
| 526 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 527 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 528 | bool return_holder = return_what == RETURN_HOLDER; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 529 | if (return_holder && depth != 0) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 530 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 531 | } |
| 532 | |
| 533 | // Return the register containing the holder. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 534 | return return_holder ? reg : no_reg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 535 | } |
| 536 | |
| 537 | |
| 538 | void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 539 | if (!miss->is_unused()) { |
| 540 | Label success; |
| 541 | __ jmp(&success); |
| 542 | __ bind(miss); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 543 | if (IC::ICUseVector(kind())) { |
| 544 | DCHECK(kind() == Code::LOAD_IC); |
| 545 | PopVectorAndSlot(); |
| 546 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 547 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 548 | __ bind(&success); |
| 549 | } |
| 550 | } |
| 551 | |
| 552 | |
| 553 | void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 554 | if (!miss->is_unused()) { |
| 555 | Label success; |
| 556 | __ jmp(&success); |
| 557 | GenerateRestoreName(miss, name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 558 | if (IC::ICUseVector(kind())) PopVectorAndSlot(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 559 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 560 | __ bind(&success); |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 565 | void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
| 566 | // Return the constant value. |
| 567 | __ LoadObject(eax, value); |
| 568 | __ ret(0); |
| 569 | } |
| 570 | |
| 571 | |
| 572 | void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( |
| 573 | LookupIterator* it, Register holder_reg) { |
| 574 | DCHECK(holder()->HasNamedInterceptor()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 575 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined(isolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 576 | |
| 577 | // Compile the interceptor call, followed by inline code to load the |
| 578 | // property from further up the prototype chain if the call fails. |
| 579 | // Check that the maps haven't changed. |
| 580 | DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
| 581 | |
| 582 | // Preserve the receiver register explicitly whenever it is different from the |
| 583 | // holder and it is needed should the interceptor return without any result. |
| 584 | // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD |
| 585 | // case might cause a miss during the prototype check. |
| 586 | bool must_perform_prototype_check = |
| 587 | !holder().is_identical_to(it->GetHolder<JSObject>()); |
| 588 | bool must_preserve_receiver_reg = |
| 589 | !receiver().is(holder_reg) && |
| 590 | (it->state() == LookupIterator::ACCESSOR || must_perform_prototype_check); |
| 591 | |
| 592 | // Save necessary data before invoking an interceptor. |
| 593 | // Requires a frame to make GC aware of pushed pointers. |
| 594 | { |
| 595 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
| 596 | |
| 597 | if (must_preserve_receiver_reg) { |
| 598 | __ push(receiver()); |
| 599 | } |
| 600 | __ push(holder_reg); |
| 601 | __ push(this->name()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 602 | InterceptorVectorSlotPush(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 603 | // Invoke an interceptor. Note: map checks from receiver to |
| 604 | // interceptor's holder has been compiled before (see a caller |
| 605 | // of this method.) |
| 606 | CompileCallLoadPropertyWithInterceptor( |
| 607 | masm(), receiver(), holder_reg, this->name(), holder(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 608 | Runtime::kLoadPropertyWithInterceptorOnly); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 609 | |
| 610 | // Check if interceptor provided a value for property. If it's |
| 611 | // the case, return immediately. |
| 612 | Label interceptor_failed; |
| 613 | __ cmp(eax, factory()->no_interceptor_result_sentinel()); |
| 614 | __ j(equal, &interceptor_failed); |
| 615 | frame_scope.GenerateLeaveFrame(); |
| 616 | __ ret(0); |
| 617 | |
| 618 | // Clobber registers when generating debug-code to provoke errors. |
| 619 | __ bind(&interceptor_failed); |
| 620 | if (FLAG_debug_code) { |
| 621 | __ mov(receiver(), Immediate(bit_cast<int32_t>(kZapValue))); |
| 622 | __ mov(holder_reg, Immediate(bit_cast<int32_t>(kZapValue))); |
| 623 | __ mov(this->name(), Immediate(bit_cast<int32_t>(kZapValue))); |
| 624 | } |
| 625 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 626 | InterceptorVectorSlotPop(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 627 | __ pop(this->name()); |
| 628 | __ pop(holder_reg); |
| 629 | if (must_preserve_receiver_reg) { |
| 630 | __ pop(receiver()); |
| 631 | } |
| 632 | |
| 633 | // Leave the internal frame. |
| 634 | } |
| 635 | |
| 636 | GenerateLoadPostInterceptor(it, holder_reg); |
| 637 | } |
| 638 | |
| 639 | |
| 640 | void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { |
| 641 | DCHECK(holder()->HasNamedInterceptor()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 642 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined(isolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 643 | // Call the runtime system to load the interceptor. |
| 644 | __ pop(scratch2()); // save old return address |
| 645 | PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), |
| 646 | holder()); |
| 647 | __ push(scratch2()); // restore old return address |
| 648 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 649 | __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | |
| 653 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 654 | Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback, |
| 655 | LanguageMode language_mode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 656 | Register holder_reg = Frontend(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 657 | |
| 658 | __ pop(scratch1()); // remove the return address |
| 659 | __ push(receiver()); |
| 660 | __ push(holder_reg); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 661 | // If the callback cannot leak, then push the callback directly, |
| 662 | // otherwise wrap it in a weak cell. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 663 | if (callback->data()->IsUndefined(isolate()) || callback->data()->IsSmi()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 664 | __ Push(callback); |
| 665 | } else { |
| 666 | Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback); |
| 667 | __ Push(cell); |
| 668 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 669 | __ Push(name); |
| 670 | __ push(value()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 671 | __ push(Immediate(Smi::FromInt(language_mode))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 672 | __ push(scratch1()); // restore return address |
| 673 | |
| 674 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 675 | __ TailCallRuntime(Runtime::kStoreCallbackProperty); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 676 | |
| 677 | // Return the generated code. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 678 | return GetCode(kind(), name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 679 | } |
| 680 | |
| 681 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 682 | Register NamedStoreHandlerCompiler::value() { |
| 683 | return StoreDescriptor::ValueRegister(); |
| 684 | } |
| 685 | |
| 686 | |
| 687 | Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal( |
| 688 | Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) { |
| 689 | Label miss; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 690 | if (IC::ICUseVector(kind())) { |
| 691 | PushVectorAndSlot(); |
| 692 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 693 | FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 694 | // Get the value from the cell. |
| 695 | Register result = StoreDescriptor::ValueRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 696 | Handle<WeakCell> weak_cell = factory()->NewWeakCell(cell); |
| 697 | __ LoadWeakValue(result, weak_cell, &miss); |
| 698 | __ mov(result, FieldOperand(result, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 699 | |
| 700 | // Check for deleted property if property can actually be deleted. |
| 701 | if (is_configurable) { |
| 702 | __ cmp(result, factory()->the_hole_value()); |
| 703 | __ j(equal, &miss); |
| 704 | } else if (FLAG_debug_code) { |
| 705 | __ cmp(result, factory()->the_hole_value()); |
| 706 | __ Check(not_equal, kDontDeleteCellsCannotContainTheHole); |
| 707 | } |
| 708 | |
| 709 | Counters* counters = isolate()->counters(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 710 | __ IncrementCounter(counters->ic_named_load_global_stub(), 1); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 711 | // The code above already loads the result into the return register. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 712 | if (IC::ICUseVector(kind())) { |
| 713 | DiscardVectorAndSlot(); |
| 714 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 715 | __ ret(0); |
| 716 | |
| 717 | FrontendFooter(name, &miss); |
| 718 | |
| 719 | // Return the generated code. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 720 | return GetCode(kind(), name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | |
| 724 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 725 | } // namespace internal |
| 726 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 727 | |
| 728 | #endif // V8_TARGET_ARCH_IA32 |