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_MIPS64 |
| 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 | // ----------- S t a t e ------------- |
| 25 | // -- a0 : receiver |
| 26 | // -- a2 : name |
| 27 | // -- ra : return address |
| 28 | // ----------------------------------- |
| 29 | { |
| 30 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 31 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 32 | // Save context register |
| 33 | __ push(cp); |
| 34 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 35 | if (accessor_index >= 0) { |
| 36 | DCHECK(!holder.is(scratch)); |
| 37 | DCHECK(!receiver.is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 38 | // Call the JavaScript getter with the receiver on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 39 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 40 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 41 | __ ld(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 43 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 44 | } |
| 45 | __ push(receiver); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 46 | __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_GETTER); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 47 | __ li(a0, Operand(V8_INT64_C(0))); |
| 48 | __ Call(masm->isolate()->builtins()->CallFunction( |
| 49 | ConvertReceiverMode::kNotNullOrUndefined), |
| 50 | RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 51 | } else { |
| 52 | // If we generate a global code snippet for deoptimization only, remember |
| 53 | // the place to continue after deoptimization. |
| 54 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 55 | } |
| 56 | |
| 57 | // Restore context register. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 58 | __ pop(cp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 59 | } |
| 60 | __ Ret(); |
| 61 | } |
| 62 | |
| 63 | |
| 64 | void NamedStoreHandlerCompiler::GenerateStoreViaSetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 66 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 67 | // ----------- S t a t e ------------- |
| 68 | // -- ra : return address |
| 69 | // ----------------------------------- |
| 70 | { |
| 71 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 72 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 73 | // Save context and value registers, so we can restore them later. |
| 74 | __ Push(cp, value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 75 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 76 | if (accessor_index >= 0) { |
| 77 | DCHECK(!holder.is(scratch)); |
| 78 | DCHECK(!receiver.is(scratch)); |
| 79 | DCHECK(!value().is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 80 | // Call the JavaScript setter with receiver and value on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 81 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 83 | __ ld(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 84 | FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 85 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 86 | } |
| 87 | __ Push(receiver, value()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 88 | __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_SETTER); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 89 | __ li(a0, Operand(1)); |
| 90 | __ Call(masm->isolate()->builtins()->CallFunction( |
| 91 | ConvertReceiverMode::kNotNullOrUndefined), |
| 92 | RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 93 | } else { |
| 94 | // If we generate a global code snippet for deoptimization only, remember |
| 95 | // the place to continue after deoptimization. |
| 96 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 97 | } |
| 98 | |
| 99 | // We have to return the passed value, not the return value of the setter. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 100 | // Restore context register. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 101 | __ Pop(cp, v0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 102 | } |
| 103 | __ Ret(); |
| 104 | } |
| 105 | |
| 106 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 107 | void PropertyHandlerCompiler::PushVectorAndSlot(Register vector, |
| 108 | Register slot) { |
| 109 | MacroAssembler* masm = this->masm(); |
| 110 | __ Push(vector, slot); |
| 111 | } |
| 112 | |
| 113 | |
| 114 | void PropertyHandlerCompiler::PopVectorAndSlot(Register vector, Register slot) { |
| 115 | MacroAssembler* masm = this->masm(); |
| 116 | __ Pop(vector, slot); |
| 117 | } |
| 118 | |
| 119 | |
| 120 | void PropertyHandlerCompiler::DiscardVectorAndSlot() { |
| 121 | MacroAssembler* masm = this->masm(); |
| 122 | // Remove vector and slot. |
| 123 | __ Daddu(sp, sp, Operand(2 * kPointerSize)); |
| 124 | } |
| 125 | |
| 126 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 127 | void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup( |
| 128 | MacroAssembler* masm, Label* miss_label, Register receiver, |
| 129 | Handle<Name> name, Register scratch0, Register scratch1) { |
| 130 | DCHECK(name->IsUniqueName()); |
| 131 | DCHECK(!receiver.is(scratch0)); |
| 132 | Counters* counters = masm->isolate()->counters(); |
| 133 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 134 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 135 | |
| 136 | Label done; |
| 137 | |
| 138 | const int kInterceptorOrAccessCheckNeededMask = |
| 139 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 140 | |
| 141 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 142 | Register map = scratch1; |
| 143 | __ ld(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 144 | __ lbu(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 145 | __ And(scratch0, scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 146 | __ Branch(miss_label, ne, scratch0, Operand(zero_reg)); |
| 147 | |
| 148 | // Check that receiver is a JSObject. |
| 149 | __ lbu(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 150 | __ Branch(miss_label, lt, scratch0, Operand(FIRST_JS_RECEIVER_TYPE)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 151 | |
| 152 | // Load properties array. |
| 153 | Register properties = scratch0; |
| 154 | __ ld(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 155 | // Check that the properties array is a dictionary. |
| 156 | __ ld(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 157 | Register tmp = properties; |
| 158 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 159 | __ Branch(miss_label, ne, map, Operand(tmp)); |
| 160 | |
| 161 | // Restore the temporarily used register. |
| 162 | __ ld(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 163 | |
| 164 | |
| 165 | NameDictionaryLookupStub::GenerateNegativeLookup( |
| 166 | masm, miss_label, &done, receiver, properties, name, scratch1); |
| 167 | __ bind(&done); |
| 168 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 169 | } |
| 170 | |
| 171 | |
| 172 | void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 173 | MacroAssembler* masm, int index, Register result, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 174 | __ LoadNativeContextSlot(index, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 175 | // Load its initial map. The global functions all have initial maps. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 176 | __ ld(result, |
| 177 | FieldMemOperand(result, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 178 | // Load the prototype from the initial map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 179 | __ ld(result, FieldMemOperand(result, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | |
| 183 | void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype( |
| 184 | MacroAssembler* masm, Register receiver, Register scratch1, |
| 185 | Register scratch2, Label* miss_label) { |
| 186 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 187 | __ Ret(USE_DELAY_SLOT); |
| 188 | __ mov(v0, scratch1); |
| 189 | } |
| 190 | |
| 191 | |
| 192 | // Generate code to check that a global property cell is empty. Create |
| 193 | // the property cell at compilation time if no cell exists for the |
| 194 | // property. |
| 195 | void PropertyHandlerCompiler::GenerateCheckPropertyCell( |
| 196 | MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, |
| 197 | Register scratch, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 198 | Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 199 | DCHECK(cell->value()->IsTheHole()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 200 | Handle<WeakCell> weak_cell = masm->isolate()->factory()->NewWeakCell(cell); |
| 201 | __ LoadWeakValue(scratch, weak_cell, miss); |
| 202 | __ ld(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 203 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 204 | __ Branch(miss, ne, scratch, Operand(at)); |
| 205 | } |
| 206 | |
| 207 | |
| 208 | static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, |
| 209 | Register holder, Register name, |
| 210 | Handle<JSObject> holder_obj) { |
| 211 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 212 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 1); |
| 213 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 2); |
| 214 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 3); |
| 215 | __ Push(name, receiver, holder); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | |
| 219 | static void CompileCallLoadPropertyWithInterceptor( |
| 220 | MacroAssembler* masm, Register receiver, Register holder, Register name, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 221 | Handle<JSObject> holder_obj, Runtime::FunctionId id) { |
| 222 | DCHECK(NamedLoadHandlerCompiler::kInterceptorArgsLength == |
| 223 | Runtime::FunctionForId(id)->nargs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 224 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 225 | __ CallRuntime(id); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | |
| 229 | // Generate call to api function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 230 | void PropertyHandlerCompiler::GenerateApiAccessorCall( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 231 | MacroAssembler* masm, const CallOptimization& optimization, |
| 232 | Handle<Map> receiver_map, Register receiver, Register scratch_in, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 233 | bool is_store, Register store_parameter, Register accessor_holder, |
| 234 | int accessor_index) { |
| 235 | DCHECK(!accessor_holder.is(scratch_in)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 236 | DCHECK(!receiver.is(scratch_in)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 237 | __ push(receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 238 | // Write the arguments to stack frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 239 | if (is_store) { |
| 240 | DCHECK(!receiver.is(store_parameter)); |
| 241 | DCHECK(!scratch_in.is(store_parameter)); |
| 242 | __ push(store_parameter); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 243 | } |
| 244 | DCHECK(optimization.is_simple_api_call()); |
| 245 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 246 | // Abi for CallApiCallbackStub. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 247 | Register callee = a0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 248 | Register data = a4; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 249 | Register holder = a2; |
| 250 | Register api_function_address = a1; |
| 251 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 252 | // Put callee in place. |
| 253 | __ LoadAccessor(callee, accessor_holder, accessor_index, |
| 254 | is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER); |
| 255 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 256 | // Put holder in place. |
| 257 | CallOptimization::HolderLookup holder_lookup; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 258 | int holder_depth = 0; |
| 259 | optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup, |
| 260 | &holder_depth); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 261 | switch (holder_lookup) { |
| 262 | case CallOptimization::kHolderIsReceiver: |
| 263 | __ Move(holder, receiver); |
| 264 | break; |
| 265 | case CallOptimization::kHolderFound: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 266 | __ ld(holder, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 267 | __ ld(holder, FieldMemOperand(holder, Map::kPrototypeOffset)); |
| 268 | for (int i = 1; i < holder_depth; i++) { |
| 269 | __ ld(holder, FieldMemOperand(holder, HeapObject::kMapOffset)); |
| 270 | __ ld(holder, FieldMemOperand(holder, Map::kPrototypeOffset)); |
| 271 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 272 | break; |
| 273 | case CallOptimization::kHolderNotFound: |
| 274 | UNREACHABLE(); |
| 275 | break; |
| 276 | } |
| 277 | |
| 278 | Isolate* isolate = masm->isolate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 279 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 280 | bool call_data_undefined = false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 281 | // Put call data in place. |
| 282 | if (api_call_info->data()->IsUndefined()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 283 | call_data_undefined = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 284 | __ LoadRoot(data, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 285 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 286 | if (optimization.is_constant_call()) { |
| 287 | __ ld(data, |
| 288 | FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset)); |
| 289 | __ ld(data, |
| 290 | FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset)); |
| 291 | __ ld(data, FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset)); |
| 292 | } else { |
| 293 | __ ld(data, |
| 294 | FieldMemOperand(callee, FunctionTemplateInfo::kCallCodeOffset)); |
| 295 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 296 | __ ld(data, FieldMemOperand(data, CallHandlerInfo::kDataOffset)); |
| 297 | } |
| 298 | |
| 299 | if (api_call_info->fast_handler()->IsCode()) { |
| 300 | // Just tail call into the fast handler if present. |
| 301 | __ Jump(handle(Code::cast(api_call_info->fast_handler())), |
| 302 | RelocInfo::CODE_TARGET); |
| 303 | return; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 304 | } |
| 305 | // Put api_function_address in place. |
| 306 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 307 | ApiFunction fun(function_address); |
| 308 | ExternalReference::Type type = ExternalReference::DIRECT_API_CALL; |
| 309 | ExternalReference ref = ExternalReference(&fun, type, masm->isolate()); |
| 310 | __ li(api_function_address, Operand(ref)); |
| 311 | |
| 312 | // Jump to stub. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 313 | CallApiCallbackStub stub(isolate, is_store, call_data_undefined, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 314 | !optimization.is_constant_call()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 315 | __ TailCallStub(&stub); |
| 316 | } |
| 317 | |
| 318 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 319 | static void StoreIC_PushArgs(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 320 | __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 321 | StoreDescriptor::ValueRegister(), |
| 322 | VectorStoreICDescriptor::SlotRegister(), |
| 323 | VectorStoreICDescriptor::VectorRegister()); |
| 324 | } |
| 325 | |
| 326 | |
| 327 | void NamedStoreHandlerCompiler::GenerateSlow(MacroAssembler* masm) { |
| 328 | StoreIC_PushArgs(masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 329 | |
| 330 | // The slow case calls into the runtime to complete the store without causing |
| 331 | // an IC miss that would otherwise cause a transition to the generic stub. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 332 | __ TailCallRuntime(Runtime::kStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | |
| 336 | void ElementHandlerCompiler::GenerateStoreSlow(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 337 | StoreIC_PushArgs(masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 338 | |
| 339 | // The slow case calls into the runtime to complete the store without causing |
| 340 | // an IC miss that would otherwise cause a transition to the generic stub. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 341 | __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | |
| 345 | #undef __ |
| 346 | #define __ ACCESS_MASM(masm()) |
| 347 | |
| 348 | |
| 349 | void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label, |
| 350 | Handle<Name> name) { |
| 351 | if (!label->is_unused()) { |
| 352 | __ bind(label); |
| 353 | __ li(this->name(), Operand(name)); |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 358 | void NamedStoreHandlerCompiler::GenerateRestoreName(Handle<Name> name) { |
| 359 | __ li(this->name(), Operand(name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 360 | } |
| 361 | |
| 362 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 363 | void NamedStoreHandlerCompiler::RearrangeVectorAndSlot( |
| 364 | Register current_map, Register destination_map) { |
| 365 | DCHECK(false); // Not implemented. |
| 366 | } |
| 367 | |
| 368 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 369 | void NamedStoreHandlerCompiler::GenerateRestoreMap(Handle<Map> transition, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 370 | Register map_reg, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 371 | Register scratch, |
| 372 | Label* miss) { |
| 373 | Handle<WeakCell> cell = Map::WeakCellForMap(transition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 374 | DCHECK(!map_reg.is(scratch)); |
| 375 | __ LoadWeakValue(map_reg, cell, miss); |
| 376 | if (transition->CanBeDeprecated()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 377 | __ lwu(scratch, FieldMemOperand(map_reg, Map::kBitField3Offset)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 378 | __ And(at, scratch, Operand(Map::Deprecated::kMask)); |
| 379 | __ Branch(miss, ne, at, Operand(zero_reg)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 380 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 381 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 382 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 383 | |
| 384 | void NamedStoreHandlerCompiler::GenerateConstantCheck(Register map_reg, |
| 385 | int descriptor, |
| 386 | Register value_reg, |
| 387 | Register scratch, |
| 388 | Label* miss_label) { |
| 389 | DCHECK(!map_reg.is(scratch)); |
| 390 | DCHECK(!map_reg.is(value_reg)); |
| 391 | DCHECK(!value_reg.is(scratch)); |
| 392 | __ LoadInstanceDescriptors(map_reg, scratch); |
| 393 | __ ld(scratch, |
| 394 | FieldMemOperand(scratch, DescriptorArray::GetValueOffset(descriptor))); |
| 395 | __ Branch(miss_label, ne, value_reg, Operand(scratch)); |
| 396 | } |
| 397 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 398 | void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(FieldType* field_type, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 399 | Register value_reg, |
| 400 | Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 401 | Register map_reg = scratch1(); |
| 402 | Register scratch = scratch2(); |
| 403 | DCHECK(!value_reg.is(map_reg)); |
| 404 | DCHECK(!value_reg.is(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 405 | __ JumpIfSmi(value_reg, miss_label); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 406 | if (field_type->IsClass()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 407 | __ ld(map_reg, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 408 | // Compare map directly within the Branch() functions. |
| 409 | __ GetWeakValue(scratch, Map::WeakCellForMap(field_type->AsClass())); |
| 410 | __ Branch(miss_label, ne, map_reg, Operand(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 411 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | |
| 415 | Register PropertyHandlerCompiler::CheckPrototypes( |
| 416 | Register object_reg, Register holder_reg, Register scratch1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 417 | Register scratch2, Handle<Name> name, Label* miss, PrototypeCheckType check, |
| 418 | ReturnHolder return_what) { |
| 419 | Handle<Map> receiver_map = map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 420 | |
| 421 | // Make sure there's no overlap between holder and object registers. |
| 422 | DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 423 | DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg) && |
| 424 | !scratch2.is(scratch1)); |
| 425 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 426 | if (FLAG_eliminate_prototype_chain_checks) { |
| 427 | Handle<Cell> validity_cell = |
| 428 | Map::GetOrCreatePrototypeChainValidityCell(receiver_map, isolate()); |
| 429 | if (!validity_cell.is_null()) { |
| 430 | DCHECK_EQ(Smi::FromInt(Map::kPrototypeChainValid), |
| 431 | validity_cell->value()); |
| 432 | __ li(scratch1, Operand(validity_cell)); |
| 433 | __ ld(scratch1, FieldMemOperand(scratch1, Cell::kValueOffset)); |
| 434 | __ Branch(miss, ne, scratch1, |
| 435 | Operand(Smi::FromInt(Map::kPrototypeChainValid))); |
| 436 | } |
| 437 | |
| 438 | // The prototype chain of primitives (and their JSValue wrappers) depends |
| 439 | // on the native context, which can't be guarded by validity cells. |
| 440 | // |object_reg| holds the native context specific prototype in this case; |
| 441 | // we need to check its map. |
| 442 | if (check == CHECK_ALL_MAPS) { |
| 443 | __ ld(scratch1, FieldMemOperand(object_reg, HeapObject::kMapOffset)); |
| 444 | Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map); |
| 445 | __ GetWeakValue(scratch2, cell); |
| 446 | __ Branch(miss, ne, scratch1, Operand(scratch2)); |
| 447 | } |
| 448 | } |
| 449 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 450 | // Keep track of the current object in register reg. |
| 451 | Register reg = object_reg; |
| 452 | int depth = 0; |
| 453 | |
| 454 | Handle<JSObject> current = Handle<JSObject>::null(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 455 | if (receiver_map->IsJSGlobalObjectMap()) { |
| 456 | current = isolate()->global_object(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 457 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 458 | |
| 459 | // Check access rights to the global object. This has to happen after |
| 460 | // the map check so that we know that the object is actually a global |
| 461 | // object. |
| 462 | // This allows us to install generated handlers for accesses to the |
| 463 | // global proxy (as opposed to using slow ICs). See corresponding code |
| 464 | // in LookupForRead(). |
| 465 | if (receiver_map->IsJSGlobalProxyMap()) { |
| 466 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 467 | } |
| 468 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 469 | Handle<JSObject> prototype = Handle<JSObject>::null(); |
| 470 | Handle<Map> current_map = receiver_map; |
| 471 | Handle<Map> holder_map(holder()->map()); |
| 472 | // Traverse the prototype chain and check the maps in the prototype chain for |
| 473 | // fast and global objects or do negative lookup for normal objects. |
| 474 | while (!current_map.is_identical_to(holder_map)) { |
| 475 | ++depth; |
| 476 | |
| 477 | // Only global objects and objects that do not require access |
| 478 | // checks are allowed in stubs. |
| 479 | DCHECK(current_map->IsJSGlobalProxyMap() || |
| 480 | !current_map->is_access_check_needed()); |
| 481 | |
| 482 | prototype = handle(JSObject::cast(current_map->prototype())); |
| 483 | if (current_map->is_dictionary_map() && |
| 484 | !current_map->IsJSGlobalObjectMap()) { |
| 485 | DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
| 486 | if (!name->IsUniqueName()) { |
| 487 | DCHECK(name->IsString()); |
| 488 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
| 489 | } |
| 490 | DCHECK(current.is_null() || |
| 491 | current->property_dictionary()->FindEntry(name) == |
| 492 | NameDictionary::kNotFound); |
| 493 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 494 | if (FLAG_eliminate_prototype_chain_checks && depth > 1) { |
| 495 | // TODO(jkummerow): Cache and re-use weak cell. |
| 496 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
| 497 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 498 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1, |
| 499 | scratch2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 500 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 501 | __ ld(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 502 | __ ld(holder_reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 503 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 504 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 505 | Register map_reg = scratch1; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 506 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 507 | __ ld(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 508 | } |
| 509 | if (current_map->IsJSGlobalObjectMap()) { |
| 510 | GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current), |
| 511 | name, scratch2, miss); |
| 512 | } else if (!FLAG_eliminate_prototype_chain_checks && |
| 513 | (depth != 1 || check == CHECK_ALL_MAPS)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 514 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 515 | __ GetWeakValue(scratch2, cell); |
| 516 | __ Branch(miss, ne, scratch2, Operand(map_reg)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 517 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 518 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 519 | __ ld(holder_reg, FieldMemOperand(map_reg, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 520 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 521 | } |
| 522 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 523 | 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] | 524 | // Go to the next object in the prototype chain. |
| 525 | current = prototype; |
| 526 | current_map = handle(current->map()); |
| 527 | } |
| 528 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 529 | DCHECK(!current_map->IsJSGlobalProxyMap()); |
| 530 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 531 | // Log the check depth. |
| 532 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 533 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 534 | if (!FLAG_eliminate_prototype_chain_checks && |
| 535 | (depth != 0 || check == CHECK_ALL_MAPS)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 536 | // Check the holder map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 537 | __ ld(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 538 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 539 | __ GetWeakValue(scratch2, cell); |
| 540 | __ Branch(miss, ne, scratch2, Operand(scratch1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 541 | } |
| 542 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 543 | bool return_holder = return_what == RETURN_HOLDER; |
| 544 | if (FLAG_eliminate_prototype_chain_checks && return_holder && depth != 0) { |
| 545 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | // Return the register containing the holder. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 549 | return return_holder ? reg : no_reg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | |
| 553 | void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 554 | if (!miss->is_unused()) { |
| 555 | Label success; |
| 556 | __ Branch(&success); |
| 557 | __ bind(miss); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 558 | if (IC::ICUseVector(kind())) { |
| 559 | DCHECK(kind() == Code::LOAD_IC); |
| 560 | PopVectorAndSlot(); |
| 561 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 562 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 563 | __ bind(&success); |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | |
| 568 | void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 569 | if (!miss->is_unused()) { |
| 570 | Label success; |
| 571 | __ Branch(&success); |
| 572 | GenerateRestoreName(miss, name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 573 | if (IC::ICUseVector(kind())) PopVectorAndSlot(); |
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 NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
| 581 | // Return the constant value. |
| 582 | __ li(v0, value); |
| 583 | __ Ret(); |
| 584 | } |
| 585 | |
| 586 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 587 | void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( |
| 588 | LookupIterator* it, Register holder_reg) { |
| 589 | DCHECK(holder()->HasNamedInterceptor()); |
| 590 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 591 | |
| 592 | // Compile the interceptor call, followed by inline code to load the |
| 593 | // property from further up the prototype chain if the call fails. |
| 594 | // Check that the maps haven't changed. |
| 595 | DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
| 596 | |
| 597 | // Preserve the receiver register explicitly whenever it is different from the |
| 598 | // holder and it is needed should the interceptor return without any result. |
| 599 | // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD |
| 600 | // case might cause a miss during the prototype check. |
| 601 | bool must_perform_prototype_check = |
| 602 | !holder().is_identical_to(it->GetHolder<JSObject>()); |
| 603 | bool must_preserve_receiver_reg = |
| 604 | !receiver().is(holder_reg) && |
| 605 | (it->state() == LookupIterator::ACCESSOR || must_perform_prototype_check); |
| 606 | |
| 607 | // Save necessary data before invoking an interceptor. |
| 608 | // Requires a frame to make GC aware of pushed pointers. |
| 609 | { |
| 610 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
| 611 | if (must_preserve_receiver_reg) { |
| 612 | __ Push(receiver(), holder_reg, this->name()); |
| 613 | } else { |
| 614 | __ Push(holder_reg, this->name()); |
| 615 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 616 | InterceptorVectorSlotPush(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 617 | // Invoke an interceptor. Note: map checks from receiver to |
| 618 | // interceptor's holder has been compiled before (see a caller |
| 619 | // of this method). |
| 620 | CompileCallLoadPropertyWithInterceptor( |
| 621 | masm(), receiver(), holder_reg, this->name(), holder(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 622 | Runtime::kLoadPropertyWithInterceptorOnly); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 623 | |
| 624 | // Check if interceptor provided a value for property. If it's |
| 625 | // the case, return immediately. |
| 626 | Label interceptor_failed; |
| 627 | __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex); |
| 628 | __ Branch(&interceptor_failed, eq, v0, Operand(scratch1())); |
| 629 | frame_scope.GenerateLeaveFrame(); |
| 630 | __ Ret(); |
| 631 | |
| 632 | __ bind(&interceptor_failed); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 633 | InterceptorVectorSlotPop(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 634 | if (must_preserve_receiver_reg) { |
| 635 | __ Pop(receiver(), holder_reg, this->name()); |
| 636 | } else { |
| 637 | __ Pop(holder_reg, this->name()); |
| 638 | } |
| 639 | // Leave the internal frame. |
| 640 | } |
| 641 | |
| 642 | GenerateLoadPostInterceptor(it, holder_reg); |
| 643 | } |
| 644 | |
| 645 | |
| 646 | void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { |
| 647 | // Call the runtime system to load the interceptor. |
| 648 | DCHECK(holder()->HasNamedInterceptor()); |
| 649 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 650 | PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), |
| 651 | holder()); |
| 652 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 653 | __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | |
| 657 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 658 | Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback, |
| 659 | LanguageMode language_mode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 660 | Register holder_reg = Frontend(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 661 | |
| 662 | __ Push(receiver(), holder_reg); // Receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 663 | // If the callback cannot leak, then push the callback directly, |
| 664 | // otherwise wrap it in a weak cell. |
| 665 | if (callback->data()->IsUndefined() || callback->data()->IsSmi()) { |
| 666 | __ li(at, Operand(callback)); |
| 667 | } else { |
| 668 | Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback); |
| 669 | __ li(at, Operand(cell)); |
| 670 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 671 | __ push(at); |
| 672 | __ li(at, Operand(name)); |
| 673 | __ Push(at, value()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 674 | __ Push(Smi::FromInt(language_mode)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 675 | |
| 676 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 677 | __ TailCallRuntime(Runtime::kStoreCallbackProperty); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 678 | |
| 679 | // Return the generated code. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 680 | return GetCode(kind(), name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 681 | } |
| 682 | |
| 683 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 684 | Register NamedStoreHandlerCompiler::value() { |
| 685 | return StoreDescriptor::ValueRegister(); |
| 686 | } |
| 687 | |
| 688 | |
| 689 | Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal( |
| 690 | Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) { |
| 691 | Label miss; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 692 | if (IC::ICUseVector(kind())) { |
| 693 | PushVectorAndSlot(); |
| 694 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 695 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 696 | FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 697 | |
| 698 | // Get the value from the cell. |
| 699 | Register result = StoreDescriptor::ValueRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 700 | Handle<WeakCell> weak_cell = factory()->NewWeakCell(cell); |
| 701 | __ LoadWeakValue(result, weak_cell, &miss); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 702 | __ ld(result, FieldMemOperand(result, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 703 | |
| 704 | // Check for deleted property if property can actually be deleted. |
| 705 | if (is_configurable) { |
| 706 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 707 | __ Branch(&miss, eq, result, Operand(at)); |
| 708 | } |
| 709 | |
| 710 | Counters* counters = isolate()->counters(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 711 | __ IncrementCounter(counters->ic_named_load_global_stub(), 1, a1, a3); |
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(USE_DELAY_SLOT); |
| 716 | __ mov(v0, result); |
| 717 | |
| 718 | FrontendFooter(name, &miss); |
| 719 | |
| 720 | // Return the generated code. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 721 | return GetCode(kind(), name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | |
| 725 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 726 | } // namespace internal |
| 727 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 728 | |
| 729 | #endif // V8_TARGET_ARCH_MIPS64 |