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 | |
| 9 | #include "src/field-type.h" |
| 10 | #include "src/ic/call-optimization.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 11 | #include "src/ic/ic.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 12 | #include "src/isolate-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 13 | |
| 14 | namespace v8 { |
| 15 | namespace internal { |
| 16 | |
| 17 | #define __ ACCESS_MASM(masm) |
| 18 | |
| 19 | |
| 20 | void NamedLoadHandlerCompiler::GenerateLoadViaGetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 21 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 22 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 23 | { |
| 24 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 25 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 26 | if (accessor_index >= 0) { |
| 27 | DCHECK(!holder.is(scratch)); |
| 28 | DCHECK(!receiver.is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 29 | // Call the JavaScript getter with the receiver on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 30 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 31 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 32 | __ mov(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 33 | FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 34 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | } |
| 36 | __ push(receiver); |
| 37 | ParameterCount actual(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 38 | ParameterCount expected(expected_arguments); |
| 39 | __ LoadAccessor(edi, holder, accessor_index, ACCESSOR_GETTER); |
| 40 | __ InvokeFunction(edi, expected, actual, CALL_FUNCTION, |
| 41 | CheckDebugStepCallWrapper()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | } else { |
| 43 | // If we generate a global code snippet for deoptimization only, remember |
| 44 | // the place to continue after deoptimization. |
| 45 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 46 | } |
| 47 | |
| 48 | // Restore context register. |
| 49 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 50 | } |
| 51 | __ ret(0); |
| 52 | } |
| 53 | |
| 54 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 55 | void PropertyHandlerCompiler::PushVectorAndSlot(Register vector, |
| 56 | Register slot) { |
| 57 | MacroAssembler* masm = this->masm(); |
| 58 | __ push(vector); |
| 59 | __ push(slot); |
| 60 | } |
| 61 | |
| 62 | |
| 63 | void PropertyHandlerCompiler::PopVectorAndSlot(Register vector, Register slot) { |
| 64 | MacroAssembler* masm = this->masm(); |
| 65 | __ pop(slot); |
| 66 | __ pop(vector); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | void PropertyHandlerCompiler::DiscardVectorAndSlot() { |
| 71 | MacroAssembler* masm = this->masm(); |
| 72 | // Remove vector and slot. |
| 73 | __ add(esp, Immediate(2 * kPointerSize)); |
| 74 | } |
| 75 | |
| 76 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 77 | void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup( |
| 78 | MacroAssembler* masm, Label* miss_label, Register receiver, |
| 79 | Handle<Name> name, Register scratch0, Register scratch1) { |
| 80 | DCHECK(name->IsUniqueName()); |
| 81 | DCHECK(!receiver.is(scratch0)); |
| 82 | Counters* counters = masm->isolate()->counters(); |
| 83 | __ IncrementCounter(counters->negative_lookups(), 1); |
| 84 | __ IncrementCounter(counters->negative_lookups_miss(), 1); |
| 85 | |
| 86 | __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 87 | |
| 88 | const int kInterceptorOrAccessCheckNeededMask = |
| 89 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 90 | |
| 91 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 92 | __ test_b(FieldOperand(scratch0, Map::kBitFieldOffset), |
| 93 | kInterceptorOrAccessCheckNeededMask); |
| 94 | __ j(not_zero, miss_label); |
| 95 | |
| 96 | // Check that receiver is a JSObject. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 97 | __ CmpInstanceType(scratch0, FIRST_JS_RECEIVER_TYPE); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 98 | __ j(below, miss_label); |
| 99 | |
| 100 | // Load properties array. |
| 101 | Register properties = scratch0; |
| 102 | __ mov(properties, FieldOperand(receiver, JSObject::kPropertiesOffset)); |
| 103 | |
| 104 | // Check that the properties array is a dictionary. |
| 105 | __ cmp(FieldOperand(properties, HeapObject::kMapOffset), |
| 106 | Immediate(masm->isolate()->factory()->hash_table_map())); |
| 107 | __ j(not_equal, miss_label); |
| 108 | |
| 109 | Label done; |
| 110 | NameDictionaryLookupStub::GenerateNegativeLookup(masm, miss_label, &done, |
| 111 | properties, name, scratch1); |
| 112 | __ bind(&done); |
| 113 | __ DecrementCounter(counters->negative_lookups_miss(), 1); |
| 114 | } |
| 115 | |
| 116 | |
| 117 | void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 118 | MacroAssembler* masm, int index, Register result, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 119 | __ LoadGlobalFunction(index, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 120 | // Load its initial map. The global functions all have initial maps. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 121 | __ mov(result, |
| 122 | FieldOperand(result, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 123 | // Load the prototype from the initial map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 124 | __ mov(result, FieldOperand(result, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | |
| 128 | void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype( |
| 129 | MacroAssembler* masm, Register receiver, Register scratch1, |
| 130 | Register scratch2, Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 131 | // TODO(mvstanton): This isn't used on ia32. Move all the other |
| 132 | // platform implementations into a code stub so this method can be removed. |
| 133 | UNREACHABLE(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | |
| 137 | // Generate call to api function. |
| 138 | // This function uses push() to generate smaller, faster code than |
| 139 | // the version above. It is an optimization that should will be removed |
| 140 | // when api call ICs are generated in hydrogen. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 141 | void PropertyHandlerCompiler::GenerateApiAccessorCall( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 142 | MacroAssembler* masm, const CallOptimization& optimization, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 143 | Handle<Map> receiver_map, Register receiver, Register scratch, |
| 144 | bool is_store, Register store_parameter, Register accessor_holder, |
| 145 | int accessor_index) { |
| 146 | DCHECK(!accessor_holder.is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 147 | // Copy return value. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 148 | __ pop(scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 149 | // receiver |
| 150 | __ push(receiver); |
| 151 | // Write the arguments to stack frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 152 | if (is_store) { |
| 153 | DCHECK(!receiver.is(store_parameter)); |
| 154 | DCHECK(!scratch.is(store_parameter)); |
| 155 | __ push(store_parameter); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 156 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 157 | __ push(scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 158 | // Stack now matches JSFunction abi. |
| 159 | DCHECK(optimization.is_simple_api_call()); |
| 160 | |
| 161 | // Abi for CallApiFunctionStub. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 162 | Register callee = edi; |
| 163 | Register data = ebx; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 164 | Register holder = ecx; |
| 165 | Register api_function_address = edx; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 166 | scratch = no_reg; |
| 167 | |
| 168 | // Put callee in place. |
| 169 | __ LoadAccessor(callee, accessor_holder, accessor_index, |
| 170 | is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 171 | |
| 172 | // Put holder in place. |
| 173 | CallOptimization::HolderLookup holder_lookup; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 174 | int holder_depth = 0; |
| 175 | optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup, |
| 176 | &holder_depth); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 177 | switch (holder_lookup) { |
| 178 | case CallOptimization::kHolderIsReceiver: |
| 179 | __ Move(holder, receiver); |
| 180 | break; |
| 181 | case CallOptimization::kHolderFound: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 182 | __ mov(holder, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 183 | __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset)); |
| 184 | for (int i = 1; i < holder_depth; i++) { |
| 185 | __ mov(holder, FieldOperand(holder, HeapObject::kMapOffset)); |
| 186 | __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset)); |
| 187 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 188 | break; |
| 189 | case CallOptimization::kHolderNotFound: |
| 190 | UNREACHABLE(); |
| 191 | break; |
| 192 | } |
| 193 | |
| 194 | Isolate* isolate = masm->isolate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 195 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 196 | bool call_data_undefined = false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 197 | // Put call data in place. |
| 198 | if (api_call_info->data()->IsUndefined()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 199 | call_data_undefined = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 200 | __ mov(data, Immediate(isolate->factory()->undefined_value())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 201 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 202 | if (optimization.is_constant_call()) { |
| 203 | __ mov(data, FieldOperand(callee, JSFunction::kSharedFunctionInfoOffset)); |
| 204 | __ mov(data, FieldOperand(data, SharedFunctionInfo::kFunctionDataOffset)); |
| 205 | __ mov(data, FieldOperand(data, FunctionTemplateInfo::kCallCodeOffset)); |
| 206 | } else { |
| 207 | __ mov(data, FieldOperand(callee, FunctionTemplateInfo::kCallCodeOffset)); |
| 208 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 209 | __ mov(data, FieldOperand(data, CallHandlerInfo::kDataOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 212 | if (api_call_info->fast_handler()->IsCode()) { |
| 213 | // Just tail call into the code. |
| 214 | __ Jump(handle(Code::cast(api_call_info->fast_handler())), |
| 215 | RelocInfo::CODE_TARGET); |
| 216 | return; |
| 217 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 218 | // Put api_function_address in place. |
| 219 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 220 | __ mov(api_function_address, Immediate(function_address)); |
| 221 | |
| 222 | // Jump to stub. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 223 | CallApiAccessorStub stub(isolate, is_store, call_data_undefined, |
| 224 | !optimization.is_constant_call()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 225 | __ TailCallStub(&stub); |
| 226 | } |
| 227 | |
| 228 | |
| 229 | // Generate code to check that a global property cell is empty. Create |
| 230 | // the property cell at compilation time if no cell exists for the |
| 231 | // property. |
| 232 | void PropertyHandlerCompiler::GenerateCheckPropertyCell( |
| 233 | MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, |
| 234 | Register scratch, Label* miss) { |
| 235 | Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); |
| 236 | DCHECK(cell->value()->IsTheHole()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 237 | Factory* factory = masm->isolate()->factory(); |
| 238 | Handle<WeakCell> weak_cell = factory->NewWeakCell(cell); |
| 239 | __ LoadWeakValue(scratch, weak_cell, miss); |
| 240 | __ cmp(FieldOperand(scratch, PropertyCell::kValueOffset), |
| 241 | Immediate(factory->the_hole_value())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 242 | __ j(not_equal, miss); |
| 243 | } |
| 244 | |
| 245 | |
| 246 | void NamedStoreHandlerCompiler::GenerateStoreViaSetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 247 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 248 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 249 | // ----------- S t a t e ------------- |
| 250 | // -- esp[0] : return address |
| 251 | // ----------------------------------- |
| 252 | { |
| 253 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 254 | |
| 255 | // Save value register, so we can restore it later. |
| 256 | __ push(value()); |
| 257 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 258 | if (accessor_index >= 0) { |
| 259 | DCHECK(!holder.is(scratch)); |
| 260 | DCHECK(!receiver.is(scratch)); |
| 261 | DCHECK(!value().is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 262 | // Call the JavaScript setter with receiver and value on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 263 | if (map->IsJSGlobalObjectMap()) { |
| 264 | __ mov(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 265 | FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 266 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 267 | } |
| 268 | __ push(receiver); |
| 269 | __ push(value()); |
| 270 | ParameterCount actual(1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 271 | ParameterCount expected(expected_arguments); |
| 272 | __ LoadAccessor(edi, holder, accessor_index, ACCESSOR_SETTER); |
| 273 | __ InvokeFunction(edi, expected, actual, CALL_FUNCTION, |
| 274 | CheckDebugStepCallWrapper()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 275 | } else { |
| 276 | // If we generate a global code snippet for deoptimization only, remember |
| 277 | // the place to continue after deoptimization. |
| 278 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 279 | } |
| 280 | |
| 281 | // We have to return the passed value, not the return value of the setter. |
| 282 | __ pop(eax); |
| 283 | |
| 284 | // Restore context register. |
| 285 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 286 | } |
| 287 | __ ret(0); |
| 288 | } |
| 289 | |
| 290 | |
| 291 | static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, |
| 292 | Register holder, Register name, |
| 293 | Handle<JSObject> holder_obj) { |
| 294 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 295 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 1); |
| 296 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 2); |
| 297 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 3); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 298 | __ push(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 299 | __ push(receiver); |
| 300 | __ push(holder); |
| 301 | } |
| 302 | |
| 303 | |
| 304 | static void CompileCallLoadPropertyWithInterceptor( |
| 305 | MacroAssembler* masm, Register receiver, Register holder, Register name, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 306 | Handle<JSObject> holder_obj, Runtime::FunctionId id) { |
| 307 | DCHECK(NamedLoadHandlerCompiler::kInterceptorArgsLength == |
| 308 | Runtime::FunctionForId(id)->nargs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 309 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 310 | __ CallRuntime(id); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | |
| 314 | static void StoreIC_PushArgs(MacroAssembler* masm) { |
| 315 | Register receiver = StoreDescriptor::ReceiverRegister(); |
| 316 | Register name = StoreDescriptor::NameRegister(); |
| 317 | Register value = StoreDescriptor::ValueRegister(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 318 | Register slot = VectorStoreICDescriptor::SlotRegister(); |
| 319 | Register vector = VectorStoreICDescriptor::VectorRegister(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 320 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 321 | __ xchg(receiver, Operand(esp, 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 322 | __ push(name); |
| 323 | __ push(value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 324 | __ push(slot); |
| 325 | __ push(vector); |
| 326 | __ push(receiver); // which contains the return address. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | |
| 330 | void NamedStoreHandlerCompiler::GenerateSlow(MacroAssembler* masm) { |
| 331 | // Return address is on the stack. |
| 332 | StoreIC_PushArgs(masm); |
| 333 | |
| 334 | // Do tail-call to runtime routine. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 335 | __ TailCallRuntime(Runtime::kStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | |
| 339 | void ElementHandlerCompiler::GenerateStoreSlow(MacroAssembler* masm) { |
| 340 | // Return address is on the stack. |
| 341 | StoreIC_PushArgs(masm); |
| 342 | |
| 343 | // Do tail-call to runtime routine. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 344 | __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | |
| 348 | #undef __ |
| 349 | #define __ ACCESS_MASM(masm()) |
| 350 | |
| 351 | |
| 352 | void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label, |
| 353 | Handle<Name> name) { |
| 354 | if (!label->is_unused()) { |
| 355 | __ bind(label); |
| 356 | __ mov(this->name(), Immediate(name)); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 361 | void NamedStoreHandlerCompiler::GenerateRestoreName(Handle<Name> name) { |
| 362 | __ mov(this->name(), Immediate(name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 366 | void NamedStoreHandlerCompiler::RearrangeVectorAndSlot( |
| 367 | Register current_map, Register destination_map) { |
| 368 | DCHECK(destination_map.is(StoreTransitionHelper::MapRegister())); |
| 369 | DCHECK(current_map.is(StoreTransitionHelper::VectorRegister())); |
| 370 | ExternalReference virtual_slot = |
| 371 | ExternalReference::virtual_slot_register(isolate()); |
| 372 | __ mov(destination_map, current_map); |
| 373 | __ pop(current_map); |
| 374 | __ mov(Operand::StaticVariable(virtual_slot), current_map); |
| 375 | __ pop(current_map); // put vector in place. |
| 376 | } |
| 377 | |
| 378 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 379 | void NamedStoreHandlerCompiler::GenerateRestoreMap(Handle<Map> transition, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 380 | Register map_reg, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 381 | Register scratch, |
| 382 | Label* miss) { |
| 383 | Handle<WeakCell> cell = Map::WeakCellForMap(transition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 384 | DCHECK(!map_reg.is(scratch)); |
| 385 | __ LoadWeakValue(map_reg, cell, miss); |
| 386 | if (transition->CanBeDeprecated()) { |
| 387 | __ mov(scratch, FieldOperand(map_reg, Map::kBitField3Offset)); |
| 388 | __ and_(scratch, Immediate(Map::Deprecated::kMask)); |
| 389 | __ j(not_zero, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 390 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 391 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 392 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 393 | |
| 394 | void NamedStoreHandlerCompiler::GenerateConstantCheck(Register map_reg, |
| 395 | int descriptor, |
| 396 | Register value_reg, |
| 397 | Register scratch, |
| 398 | Label* miss_label) { |
| 399 | DCHECK(!map_reg.is(scratch)); |
| 400 | DCHECK(!map_reg.is(value_reg)); |
| 401 | DCHECK(!value_reg.is(scratch)); |
| 402 | __ LoadInstanceDescriptors(map_reg, scratch); |
| 403 | __ mov(scratch, |
| 404 | FieldOperand(scratch, DescriptorArray::GetValueOffset(descriptor))); |
| 405 | __ cmp(value_reg, scratch); |
| 406 | __ j(not_equal, miss_label); |
| 407 | } |
| 408 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 409 | void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(FieldType* field_type, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 410 | Register value_reg, |
| 411 | Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 412 | Register map_reg = scratch1(); |
| 413 | Register scratch = scratch2(); |
| 414 | DCHECK(!value_reg.is(map_reg)); |
| 415 | DCHECK(!value_reg.is(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 416 | __ JumpIfSmi(value_reg, miss_label); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 417 | if (field_type->IsClass()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 418 | __ mov(map_reg, FieldOperand(value_reg, HeapObject::kMapOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 419 | __ CmpWeakValue(map_reg, Map::WeakCellForMap(field_type->AsClass()), |
| 420 | scratch); |
| 421 | __ j(not_equal, miss_label); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 422 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | |
| 426 | Register PropertyHandlerCompiler::CheckPrototypes( |
| 427 | Register object_reg, Register holder_reg, Register scratch1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 428 | Register scratch2, Handle<Name> name, Label* miss, PrototypeCheckType check, |
| 429 | ReturnHolder return_what) { |
| 430 | Handle<Map> receiver_map = map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 431 | |
| 432 | // Make sure there's no overlap between holder and object registers. |
| 433 | DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 434 | DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg) && |
| 435 | !scratch2.is(scratch1)); |
| 436 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 437 | if (FLAG_eliminate_prototype_chain_checks) { |
| 438 | Handle<Cell> validity_cell = |
| 439 | Map::GetOrCreatePrototypeChainValidityCell(receiver_map, isolate()); |
| 440 | if (!validity_cell.is_null()) { |
| 441 | DCHECK_EQ(Smi::FromInt(Map::kPrototypeChainValid), |
| 442 | validity_cell->value()); |
| 443 | // Operand::ForCell(...) points to the cell's payload! |
| 444 | __ cmp(Operand::ForCell(validity_cell), |
| 445 | Immediate(Smi::FromInt(Map::kPrototypeChainValid))); |
| 446 | __ j(not_equal, miss); |
| 447 | } |
| 448 | |
| 449 | // The prototype chain of primitives (and their JSValue wrappers) depends |
| 450 | // on the native context, which can't be guarded by validity cells. |
| 451 | // |object_reg| holds the native context specific prototype in this case; |
| 452 | // we need to check its map. |
| 453 | if (check == CHECK_ALL_MAPS) { |
| 454 | __ mov(scratch1, FieldOperand(object_reg, HeapObject::kMapOffset)); |
| 455 | Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map); |
| 456 | __ CmpWeakValue(scratch1, cell, scratch2); |
| 457 | __ j(not_equal, miss); |
| 458 | } |
| 459 | } |
| 460 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 461 | // Keep track of the current object in register reg. |
| 462 | Register reg = object_reg; |
| 463 | int depth = 0; |
| 464 | |
| 465 | Handle<JSObject> current = Handle<JSObject>::null(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 466 | if (receiver_map->IsJSGlobalObjectMap()) { |
| 467 | current = isolate()->global_object(); |
| 468 | } |
| 469 | |
| 470 | // Check access rights to the global object. This has to happen after |
| 471 | // the map check so that we know that the object is actually a global |
| 472 | // object. |
| 473 | // This allows us to install generated handlers for accesses to the |
| 474 | // global proxy (as opposed to using slow ICs). See corresponding code |
| 475 | // in LookupForRead(). |
| 476 | if (receiver_map->IsJSGlobalProxyMap()) { |
| 477 | __ CheckAccessGlobalProxy(reg, scratch1, scratch2, miss); |
| 478 | } |
| 479 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 480 | Handle<JSObject> prototype = Handle<JSObject>::null(); |
| 481 | Handle<Map> current_map = receiver_map; |
| 482 | Handle<Map> holder_map(holder()->map()); |
| 483 | // Traverse the prototype chain and check the maps in the prototype chain for |
| 484 | // fast and global objects or do negative lookup for normal objects. |
| 485 | while (!current_map.is_identical_to(holder_map)) { |
| 486 | ++depth; |
| 487 | |
| 488 | // Only global objects and objects that do not require access |
| 489 | // checks are allowed in stubs. |
| 490 | DCHECK(current_map->IsJSGlobalProxyMap() || |
| 491 | !current_map->is_access_check_needed()); |
| 492 | |
| 493 | prototype = handle(JSObject::cast(current_map->prototype())); |
| 494 | if (current_map->is_dictionary_map() && |
| 495 | !current_map->IsJSGlobalObjectMap()) { |
| 496 | DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
| 497 | if (!name->IsUniqueName()) { |
| 498 | DCHECK(name->IsString()); |
| 499 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
| 500 | } |
| 501 | DCHECK(current.is_null() || |
| 502 | current->property_dictionary()->FindEntry(name) == |
| 503 | NameDictionary::kNotFound); |
| 504 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 505 | if (FLAG_eliminate_prototype_chain_checks && depth > 1) { |
| 506 | // TODO(jkummerow): Cache and re-use weak cell. |
| 507 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
| 508 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 509 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1, |
| 510 | scratch2); |
| 511 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 512 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 513 | __ mov(scratch1, FieldOperand(reg, HeapObject::kMapOffset)); |
| 514 | __ mov(holder_reg, FieldOperand(scratch1, Map::kPrototypeOffset)); |
| 515 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 516 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 517 | Register map_reg = scratch1; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 518 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 519 | __ mov(map_reg, FieldOperand(reg, HeapObject::kMapOffset)); |
| 520 | } |
| 521 | if (current_map->IsJSGlobalObjectMap()) { |
| 522 | GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current), |
| 523 | name, scratch2, miss); |
| 524 | } else if (!FLAG_eliminate_prototype_chain_checks && |
| 525 | (depth != 1 || check == CHECK_ALL_MAPS)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 526 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 527 | __ CmpWeakValue(map_reg, cell, scratch2); |
| 528 | __ j(not_equal, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 529 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 530 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 531 | __ mov(holder_reg, FieldOperand(map_reg, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 532 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 533 | } |
| 534 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 535 | 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] | 536 | // Go to the next object in the prototype chain. |
| 537 | current = prototype; |
| 538 | current_map = handle(current->map()); |
| 539 | } |
| 540 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 541 | DCHECK(!current_map->IsJSGlobalProxyMap()); |
| 542 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 543 | // Log the check depth. |
| 544 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 545 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 546 | if (!FLAG_eliminate_prototype_chain_checks && |
| 547 | (depth != 0 || check == CHECK_ALL_MAPS)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 548 | // Check the holder map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 549 | __ mov(scratch1, FieldOperand(reg, HeapObject::kMapOffset)); |
| 550 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 551 | __ CmpWeakValue(scratch1, cell, scratch2); |
| 552 | __ j(not_equal, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 553 | } |
| 554 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 555 | bool return_holder = return_what == RETURN_HOLDER; |
| 556 | if (FLAG_eliminate_prototype_chain_checks && return_holder && depth != 0) { |
| 557 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | // Return the register containing the holder. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 561 | return return_holder ? reg : no_reg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | |
| 565 | void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 566 | if (!miss->is_unused()) { |
| 567 | Label success; |
| 568 | __ jmp(&success); |
| 569 | __ bind(miss); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 570 | if (IC::ICUseVector(kind())) { |
| 571 | DCHECK(kind() == Code::LOAD_IC); |
| 572 | PopVectorAndSlot(); |
| 573 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 574 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 575 | __ bind(&success); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | |
| 580 | void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 581 | if (!miss->is_unused()) { |
| 582 | Label success; |
| 583 | __ jmp(&success); |
| 584 | GenerateRestoreName(miss, name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 585 | if (IC::ICUseVector(kind())) PopVectorAndSlot(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 586 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 587 | __ bind(&success); |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | |
| 592 | void NamedLoadHandlerCompiler::GenerateLoadCallback( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 593 | Register reg, Handle<AccessorInfo> callback) { |
| 594 | DCHECK(!AreAliased(scratch2(), scratch3(), receiver())); |
| 595 | DCHECK(!AreAliased(scratch2(), scratch3(), reg)); |
| 596 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 597 | // Insert additional parameters into the stack frame above return address. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 598 | __ pop(scratch3()); // Get return address to place it below. |
| 599 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 600 | // Build v8::PropertyCallbackInfo::args_ array on the stack and push property |
| 601 | // name below the exit frame to make GC aware of them. |
| 602 | STATIC_ASSERT(PropertyCallbackArguments::kShouldThrowOnErrorIndex == 0); |
| 603 | STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 1); |
| 604 | STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 2); |
| 605 | STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 3); |
| 606 | STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 4); |
| 607 | STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 5); |
| 608 | STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 6); |
| 609 | STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 7); |
| 610 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 611 | __ push(receiver()); // receiver |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 612 | // Push data from AccessorInfo. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 613 | Handle<Object> data(callback->data(), isolate()); |
| 614 | if (data->IsUndefined() || data->IsSmi()) { |
| 615 | __ push(Immediate(data)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 616 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 617 | Handle<WeakCell> cell = |
| 618 | isolate()->factory()->NewWeakCell(Handle<HeapObject>::cast(data)); |
| 619 | // The callback is alive if this instruction is executed, |
| 620 | // so the weak cell is not cleared and points to data. |
| 621 | __ GetWeakValue(scratch2(), cell); |
| 622 | __ push(scratch2()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 623 | } |
| 624 | __ push(Immediate(isolate()->factory()->undefined_value())); // ReturnValue |
| 625 | // ReturnValue default value |
| 626 | __ push(Immediate(isolate()->factory()->undefined_value())); |
| 627 | __ push(Immediate(reinterpret_cast<int>(isolate()))); |
| 628 | __ push(reg); // holder |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 629 | __ push(Immediate(Smi::FromInt(0))); // should_throw_on_error -> false |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 630 | |
| 631 | __ push(name()); // name |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 632 | __ push(scratch3()); // Restore return address. |
| 633 | |
| 634 | // Abi for CallApiGetter |
| 635 | Register getter_address = ApiGetterDescriptor::function_address(); |
| 636 | Address function_address = v8::ToCData<Address>(callback->getter()); |
| 637 | __ mov(getter_address, Immediate(function_address)); |
| 638 | |
| 639 | CallApiGetterStub stub(isolate()); |
| 640 | __ TailCallStub(&stub); |
| 641 | } |
| 642 | |
| 643 | |
| 644 | void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
| 645 | // Return the constant value. |
| 646 | __ LoadObject(eax, value); |
| 647 | __ ret(0); |
| 648 | } |
| 649 | |
| 650 | |
| 651 | void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( |
| 652 | LookupIterator* it, Register holder_reg) { |
| 653 | DCHECK(holder()->HasNamedInterceptor()); |
| 654 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 655 | |
| 656 | // Compile the interceptor call, followed by inline code to load the |
| 657 | // property from further up the prototype chain if the call fails. |
| 658 | // Check that the maps haven't changed. |
| 659 | DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
| 660 | |
| 661 | // Preserve the receiver register explicitly whenever it is different from the |
| 662 | // holder and it is needed should the interceptor return without any result. |
| 663 | // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD |
| 664 | // case might cause a miss during the prototype check. |
| 665 | bool must_perform_prototype_check = |
| 666 | !holder().is_identical_to(it->GetHolder<JSObject>()); |
| 667 | bool must_preserve_receiver_reg = |
| 668 | !receiver().is(holder_reg) && |
| 669 | (it->state() == LookupIterator::ACCESSOR || must_perform_prototype_check); |
| 670 | |
| 671 | // Save necessary data before invoking an interceptor. |
| 672 | // Requires a frame to make GC aware of pushed pointers. |
| 673 | { |
| 674 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
| 675 | |
| 676 | if (must_preserve_receiver_reg) { |
| 677 | __ push(receiver()); |
| 678 | } |
| 679 | __ push(holder_reg); |
| 680 | __ push(this->name()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 681 | InterceptorVectorSlotPush(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 682 | // Invoke an interceptor. Note: map checks from receiver to |
| 683 | // interceptor's holder has been compiled before (see a caller |
| 684 | // of this method.) |
| 685 | CompileCallLoadPropertyWithInterceptor( |
| 686 | masm(), receiver(), holder_reg, this->name(), holder(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 687 | Runtime::kLoadPropertyWithInterceptorOnly); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 688 | |
| 689 | // Check if interceptor provided a value for property. If it's |
| 690 | // the case, return immediately. |
| 691 | Label interceptor_failed; |
| 692 | __ cmp(eax, factory()->no_interceptor_result_sentinel()); |
| 693 | __ j(equal, &interceptor_failed); |
| 694 | frame_scope.GenerateLeaveFrame(); |
| 695 | __ ret(0); |
| 696 | |
| 697 | // Clobber registers when generating debug-code to provoke errors. |
| 698 | __ bind(&interceptor_failed); |
| 699 | if (FLAG_debug_code) { |
| 700 | __ mov(receiver(), Immediate(bit_cast<int32_t>(kZapValue))); |
| 701 | __ mov(holder_reg, Immediate(bit_cast<int32_t>(kZapValue))); |
| 702 | __ mov(this->name(), Immediate(bit_cast<int32_t>(kZapValue))); |
| 703 | } |
| 704 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 705 | InterceptorVectorSlotPop(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 706 | __ pop(this->name()); |
| 707 | __ pop(holder_reg); |
| 708 | if (must_preserve_receiver_reg) { |
| 709 | __ pop(receiver()); |
| 710 | } |
| 711 | |
| 712 | // Leave the internal frame. |
| 713 | } |
| 714 | |
| 715 | GenerateLoadPostInterceptor(it, holder_reg); |
| 716 | } |
| 717 | |
| 718 | |
| 719 | void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { |
| 720 | DCHECK(holder()->HasNamedInterceptor()); |
| 721 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 722 | // Call the runtime system to load the interceptor. |
| 723 | __ pop(scratch2()); // save old return address |
| 724 | PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), |
| 725 | holder()); |
| 726 | __ push(scratch2()); // restore old return address |
| 727 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 728 | __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 729 | } |
| 730 | |
| 731 | |
| 732 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 733 | Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback, |
| 734 | LanguageMode language_mode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 735 | Register holder_reg = Frontend(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 736 | |
| 737 | __ pop(scratch1()); // remove the return address |
| 738 | __ push(receiver()); |
| 739 | __ push(holder_reg); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 740 | // If the callback cannot leak, then push the callback directly, |
| 741 | // otherwise wrap it in a weak cell. |
| 742 | if (callback->data()->IsUndefined() || callback->data()->IsSmi()) { |
| 743 | __ Push(callback); |
| 744 | } else { |
| 745 | Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback); |
| 746 | __ Push(cell); |
| 747 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 748 | __ Push(name); |
| 749 | __ push(value()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 750 | __ push(Immediate(Smi::FromInt(language_mode))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 751 | __ push(scratch1()); // restore return address |
| 752 | |
| 753 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 754 | __ TailCallRuntime(Runtime::kStoreCallbackProperty); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 755 | |
| 756 | // Return the generated code. |
| 757 | return GetCode(kind(), Code::FAST, name); |
| 758 | } |
| 759 | |
| 760 | |
| 761 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreInterceptor( |
| 762 | Handle<Name> name) { |
| 763 | __ pop(scratch1()); // remove the return address |
| 764 | __ push(receiver()); |
| 765 | __ push(this->name()); |
| 766 | __ push(value()); |
| 767 | __ push(scratch1()); // restore return address |
| 768 | |
| 769 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 770 | __ TailCallRuntime(Runtime::kStorePropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 771 | |
| 772 | // Return the generated code. |
| 773 | return GetCode(kind(), Code::FAST, name); |
| 774 | } |
| 775 | |
| 776 | |
| 777 | Register NamedStoreHandlerCompiler::value() { |
| 778 | return StoreDescriptor::ValueRegister(); |
| 779 | } |
| 780 | |
| 781 | |
| 782 | Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal( |
| 783 | Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) { |
| 784 | Label miss; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 785 | if (IC::ICUseVector(kind())) { |
| 786 | PushVectorAndSlot(); |
| 787 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 788 | FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 789 | // Get the value from the cell. |
| 790 | Register result = StoreDescriptor::ValueRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 791 | Handle<WeakCell> weak_cell = factory()->NewWeakCell(cell); |
| 792 | __ LoadWeakValue(result, weak_cell, &miss); |
| 793 | __ mov(result, FieldOperand(result, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 794 | |
| 795 | // Check for deleted property if property can actually be deleted. |
| 796 | if (is_configurable) { |
| 797 | __ cmp(result, factory()->the_hole_value()); |
| 798 | __ j(equal, &miss); |
| 799 | } else if (FLAG_debug_code) { |
| 800 | __ cmp(result, factory()->the_hole_value()); |
| 801 | __ Check(not_equal, kDontDeleteCellsCannotContainTheHole); |
| 802 | } |
| 803 | |
| 804 | Counters* counters = isolate()->counters(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 805 | __ IncrementCounter(counters->ic_named_load_global_stub(), 1); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 806 | // The code above already loads the result into the return register. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 807 | if (IC::ICUseVector(kind())) { |
| 808 | DiscardVectorAndSlot(); |
| 809 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 810 | __ ret(0); |
| 811 | |
| 812 | FrontendFooter(name, &miss); |
| 813 | |
| 814 | // Return the generated code. |
| 815 | return GetCode(kind(), Code::NORMAL, name); |
| 816 | } |
| 817 | |
| 818 | |
| 819 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 820 | } // namespace internal |
| 821 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 822 | |
| 823 | #endif // V8_TARGET_ARCH_IA32 |