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 | |
| 7 | #include "src/ic/call-optimization.h" |
| 8 | #include "src/ic/handler-compiler.h" |
| 9 | #include "src/ic/ic.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 10 | #include "src/isolate-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 11 | |
| 12 | namespace v8 { |
| 13 | namespace internal { |
| 14 | |
| 15 | #define __ ACCESS_MASM(masm) |
| 16 | |
| 17 | |
| 18 | void NamedLoadHandlerCompiler::GenerateLoadViaGetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 19 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 20 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 21 | // ----------- S t a t e ------------- |
| 22 | // -- a0 : receiver |
| 23 | // -- a2 : name |
| 24 | // -- ra : return address |
| 25 | // ----------------------------------- |
| 26 | { |
| 27 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 28 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 29 | if (accessor_index >= 0) { |
| 30 | DCHECK(!holder.is(scratch)); |
| 31 | DCHECK(!receiver.is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 32 | // Call the JavaScript getter with the receiver on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 33 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 34 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 35 | __ ld(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 36 | FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 37 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 38 | } |
| 39 | __ push(receiver); |
| 40 | ParameterCount actual(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 41 | ParameterCount expected(expected_arguments); |
| 42 | __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_GETTER); |
| 43 | __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, |
| 44 | CheckDebugStepCallWrapper()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 45 | } else { |
| 46 | // If we generate a global code snippet for deoptimization only, remember |
| 47 | // the place to continue after deoptimization. |
| 48 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 49 | } |
| 50 | |
| 51 | // Restore context register. |
| 52 | __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 53 | } |
| 54 | __ Ret(); |
| 55 | } |
| 56 | |
| 57 | |
| 58 | void NamedStoreHandlerCompiler::GenerateStoreViaSetter( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 59 | MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder, |
| 60 | int accessor_index, int expected_arguments, Register scratch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 61 | // ----------- S t a t e ------------- |
| 62 | // -- ra : return address |
| 63 | // ----------------------------------- |
| 64 | { |
| 65 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 66 | |
| 67 | // Save value register, so we can restore it later. |
| 68 | __ push(value()); |
| 69 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 70 | if (accessor_index >= 0) { |
| 71 | DCHECK(!holder.is(scratch)); |
| 72 | DCHECK(!receiver.is(scratch)); |
| 73 | DCHECK(!value().is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 74 | // Call the JavaScript setter with receiver and value on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 75 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 76 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 77 | __ ld(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 78 | FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 79 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 80 | } |
| 81 | __ Push(receiver, value()); |
| 82 | ParameterCount actual(1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 83 | ParameterCount expected(expected_arguments); |
| 84 | __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_SETTER); |
| 85 | __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, |
| 86 | CheckDebugStepCallWrapper()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 87 | } else { |
| 88 | // If we generate a global code snippet for deoptimization only, remember |
| 89 | // the place to continue after deoptimization. |
| 90 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 91 | } |
| 92 | |
| 93 | // We have to return the passed value, not the return value of the setter. |
| 94 | __ pop(v0); |
| 95 | |
| 96 | // Restore context register. |
| 97 | __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 98 | } |
| 99 | __ Ret(); |
| 100 | } |
| 101 | |
| 102 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 103 | void PropertyHandlerCompiler::PushVectorAndSlot(Register vector, |
| 104 | Register slot) { |
| 105 | MacroAssembler* masm = this->masm(); |
| 106 | __ Push(vector, slot); |
| 107 | } |
| 108 | |
| 109 | |
| 110 | void PropertyHandlerCompiler::PopVectorAndSlot(Register vector, Register slot) { |
| 111 | MacroAssembler* masm = this->masm(); |
| 112 | __ Pop(vector, slot); |
| 113 | } |
| 114 | |
| 115 | |
| 116 | void PropertyHandlerCompiler::DiscardVectorAndSlot() { |
| 117 | MacroAssembler* masm = this->masm(); |
| 118 | // Remove vector and slot. |
| 119 | __ Daddu(sp, sp, Operand(2 * kPointerSize)); |
| 120 | } |
| 121 | |
| 122 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 123 | void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup( |
| 124 | MacroAssembler* masm, Label* miss_label, Register receiver, |
| 125 | Handle<Name> name, Register scratch0, Register scratch1) { |
| 126 | DCHECK(name->IsUniqueName()); |
| 127 | DCHECK(!receiver.is(scratch0)); |
| 128 | Counters* counters = masm->isolate()->counters(); |
| 129 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 130 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 131 | |
| 132 | Label done; |
| 133 | |
| 134 | const int kInterceptorOrAccessCheckNeededMask = |
| 135 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 136 | |
| 137 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 138 | Register map = scratch1; |
| 139 | __ ld(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 140 | __ lbu(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 141 | __ And(scratch0, scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 142 | __ Branch(miss_label, ne, scratch0, Operand(zero_reg)); |
| 143 | |
| 144 | // Check that receiver is a JSObject. |
| 145 | __ lbu(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 146 | __ Branch(miss_label, lt, scratch0, Operand(FIRST_JS_RECEIVER_TYPE)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 147 | |
| 148 | // Load properties array. |
| 149 | Register properties = scratch0; |
| 150 | __ ld(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 151 | // Check that the properties array is a dictionary. |
| 152 | __ ld(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 153 | Register tmp = properties; |
| 154 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 155 | __ Branch(miss_label, ne, map, Operand(tmp)); |
| 156 | |
| 157 | // Restore the temporarily used register. |
| 158 | __ ld(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 159 | |
| 160 | |
| 161 | NameDictionaryLookupStub::GenerateNegativeLookup( |
| 162 | masm, miss_label, &done, receiver, properties, name, scratch1); |
| 163 | __ bind(&done); |
| 164 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 165 | } |
| 166 | |
| 167 | |
| 168 | void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 169 | MacroAssembler* masm, int index, Register result, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 170 | __ LoadNativeContextSlot(index, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 171 | // Load its initial map. The global functions all have initial maps. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 172 | __ ld(result, |
| 173 | FieldMemOperand(result, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 174 | // Load the prototype from the initial map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 175 | __ ld(result, FieldMemOperand(result, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | |
| 179 | void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype( |
| 180 | MacroAssembler* masm, Register receiver, Register scratch1, |
| 181 | Register scratch2, Label* miss_label) { |
| 182 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 183 | __ Ret(USE_DELAY_SLOT); |
| 184 | __ mov(v0, scratch1); |
| 185 | } |
| 186 | |
| 187 | |
| 188 | // Generate code to check that a global property cell is empty. Create |
| 189 | // the property cell at compilation time if no cell exists for the |
| 190 | // property. |
| 191 | void PropertyHandlerCompiler::GenerateCheckPropertyCell( |
| 192 | MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, |
| 193 | Register scratch, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 194 | Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 195 | DCHECK(cell->value()->IsTheHole()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 196 | Handle<WeakCell> weak_cell = masm->isolate()->factory()->NewWeakCell(cell); |
| 197 | __ LoadWeakValue(scratch, weak_cell, miss); |
| 198 | __ ld(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 199 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 200 | __ Branch(miss, ne, scratch, Operand(at)); |
| 201 | } |
| 202 | |
| 203 | |
| 204 | static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, |
| 205 | Register holder, Register name, |
| 206 | Handle<JSObject> holder_obj) { |
| 207 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 208 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 1); |
| 209 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 2); |
| 210 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 3); |
| 211 | __ Push(name, receiver, holder); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | |
| 215 | static void CompileCallLoadPropertyWithInterceptor( |
| 216 | MacroAssembler* masm, Register receiver, Register holder, Register name, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 217 | Handle<JSObject> holder_obj, Runtime::FunctionId id) { |
| 218 | DCHECK(NamedLoadHandlerCompiler::kInterceptorArgsLength == |
| 219 | Runtime::FunctionForId(id)->nargs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 220 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 221 | __ CallRuntime(id); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 222 | } |
| 223 | |
| 224 | |
| 225 | // Generate call to api function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 226 | void PropertyHandlerCompiler::GenerateApiAccessorCall( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 227 | MacroAssembler* masm, const CallOptimization& optimization, |
| 228 | Handle<Map> receiver_map, Register receiver, Register scratch_in, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 229 | bool is_store, Register store_parameter, Register accessor_holder, |
| 230 | int accessor_index) { |
| 231 | DCHECK(!accessor_holder.is(scratch_in)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 232 | DCHECK(!receiver.is(scratch_in)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 233 | __ push(receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 234 | // Write the arguments to stack frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 235 | if (is_store) { |
| 236 | DCHECK(!receiver.is(store_parameter)); |
| 237 | DCHECK(!scratch_in.is(store_parameter)); |
| 238 | __ push(store_parameter); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 239 | } |
| 240 | DCHECK(optimization.is_simple_api_call()); |
| 241 | |
| 242 | // Abi for CallApiFunctionStub. |
| 243 | Register callee = a0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 244 | Register data = a4; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 245 | Register holder = a2; |
| 246 | Register api_function_address = a1; |
| 247 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 248 | // Put callee in place. |
| 249 | __ LoadAccessor(callee, accessor_holder, accessor_index, |
| 250 | is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER); |
| 251 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 252 | // Put holder in place. |
| 253 | CallOptimization::HolderLookup holder_lookup; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 254 | int holder_depth = 0; |
| 255 | optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup, |
| 256 | &holder_depth); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 257 | switch (holder_lookup) { |
| 258 | case CallOptimization::kHolderIsReceiver: |
| 259 | __ Move(holder, receiver); |
| 260 | break; |
| 261 | case CallOptimization::kHolderFound: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 262 | __ ld(holder, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 263 | __ ld(holder, FieldMemOperand(holder, Map::kPrototypeOffset)); |
| 264 | for (int i = 1; i < holder_depth; i++) { |
| 265 | __ ld(holder, FieldMemOperand(holder, HeapObject::kMapOffset)); |
| 266 | __ ld(holder, FieldMemOperand(holder, Map::kPrototypeOffset)); |
| 267 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 268 | break; |
| 269 | case CallOptimization::kHolderNotFound: |
| 270 | UNREACHABLE(); |
| 271 | break; |
| 272 | } |
| 273 | |
| 274 | Isolate* isolate = masm->isolate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 275 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 276 | bool call_data_undefined = false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 277 | // Put call data in place. |
| 278 | if (api_call_info->data()->IsUndefined()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 279 | call_data_undefined = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 280 | __ LoadRoot(data, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 281 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 282 | __ ld(data, FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset)); |
| 283 | __ ld(data, FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset)); |
| 284 | __ ld(data, FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset)); |
| 285 | __ ld(data, FieldMemOperand(data, CallHandlerInfo::kDataOffset)); |
| 286 | } |
| 287 | |
| 288 | if (api_call_info->fast_handler()->IsCode()) { |
| 289 | // Just tail call into the fast handler if present. |
| 290 | __ Jump(handle(Code::cast(api_call_info->fast_handler())), |
| 291 | RelocInfo::CODE_TARGET); |
| 292 | return; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 293 | } |
| 294 | // Put api_function_address in place. |
| 295 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 296 | ApiFunction fun(function_address); |
| 297 | ExternalReference::Type type = ExternalReference::DIRECT_API_CALL; |
| 298 | ExternalReference ref = ExternalReference(&fun, type, masm->isolate()); |
| 299 | __ li(api_function_address, Operand(ref)); |
| 300 | |
| 301 | // Jump to stub. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 302 | CallApiAccessorStub stub(isolate, is_store, call_data_undefined); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 303 | __ TailCallStub(&stub); |
| 304 | } |
| 305 | |
| 306 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 307 | static void StoreIC_PushArgs(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 308 | __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 309 | StoreDescriptor::ValueRegister(), |
| 310 | VectorStoreICDescriptor::SlotRegister(), |
| 311 | VectorStoreICDescriptor::VectorRegister()); |
| 312 | } |
| 313 | |
| 314 | |
| 315 | void NamedStoreHandlerCompiler::GenerateSlow(MacroAssembler* masm) { |
| 316 | StoreIC_PushArgs(masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 317 | |
| 318 | // The slow case calls into the runtime to complete the store without causing |
| 319 | // 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^] | 320 | __ TailCallRuntime(Runtime::kStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 321 | } |
| 322 | |
| 323 | |
| 324 | void ElementHandlerCompiler::GenerateStoreSlow(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 325 | StoreIC_PushArgs(masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 326 | |
| 327 | // The slow case calls into the runtime to complete the store without causing |
| 328 | // 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^] | 329 | __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 330 | } |
| 331 | |
| 332 | |
| 333 | #undef __ |
| 334 | #define __ ACCESS_MASM(masm()) |
| 335 | |
| 336 | |
| 337 | void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label, |
| 338 | Handle<Name> name) { |
| 339 | if (!label->is_unused()) { |
| 340 | __ bind(label); |
| 341 | __ li(this->name(), Operand(name)); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 346 | void NamedStoreHandlerCompiler::GenerateRestoreName(Handle<Name> name) { |
| 347 | __ li(this->name(), Operand(name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 351 | void NamedStoreHandlerCompiler::RearrangeVectorAndSlot( |
| 352 | Register current_map, Register destination_map) { |
| 353 | DCHECK(false); // Not implemented. |
| 354 | } |
| 355 | |
| 356 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 357 | void NamedStoreHandlerCompiler::GenerateRestoreMap(Handle<Map> transition, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 358 | Register map_reg, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 359 | Register scratch, |
| 360 | Label* miss) { |
| 361 | Handle<WeakCell> cell = Map::WeakCellForMap(transition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 362 | DCHECK(!map_reg.is(scratch)); |
| 363 | __ LoadWeakValue(map_reg, cell, miss); |
| 364 | if (transition->CanBeDeprecated()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 365 | __ lwu(scratch, FieldMemOperand(map_reg, Map::kBitField3Offset)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 366 | __ And(at, scratch, Operand(Map::Deprecated::kMask)); |
| 367 | __ Branch(miss, ne, at, Operand(zero_reg)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 368 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 369 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 370 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 371 | |
| 372 | void NamedStoreHandlerCompiler::GenerateConstantCheck(Register map_reg, |
| 373 | int descriptor, |
| 374 | Register value_reg, |
| 375 | Register scratch, |
| 376 | Label* miss_label) { |
| 377 | DCHECK(!map_reg.is(scratch)); |
| 378 | DCHECK(!map_reg.is(value_reg)); |
| 379 | DCHECK(!value_reg.is(scratch)); |
| 380 | __ LoadInstanceDescriptors(map_reg, scratch); |
| 381 | __ ld(scratch, |
| 382 | FieldMemOperand(scratch, DescriptorArray::GetValueOffset(descriptor))); |
| 383 | __ Branch(miss_label, ne, value_reg, Operand(scratch)); |
| 384 | } |
| 385 | |
| 386 | |
| 387 | void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(HeapType* field_type, |
| 388 | Register value_reg, |
| 389 | Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 390 | Register map_reg = scratch1(); |
| 391 | Register scratch = scratch2(); |
| 392 | DCHECK(!value_reg.is(map_reg)); |
| 393 | DCHECK(!value_reg.is(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 394 | __ JumpIfSmi(value_reg, miss_label); |
| 395 | HeapType::Iterator<Map> it = field_type->Classes(); |
| 396 | if (!it.Done()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 397 | __ ld(map_reg, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 398 | Label do_store; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 399 | while (true) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 400 | // Compare map directly within the Branch() functions. |
| 401 | __ GetWeakValue(scratch, Map::WeakCellForMap(it.Current())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 402 | it.Advance(); |
| 403 | if (it.Done()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 404 | __ Branch(miss_label, ne, map_reg, Operand(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 405 | break; |
| 406 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 407 | __ Branch(&do_store, eq, map_reg, Operand(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 408 | } |
| 409 | __ bind(&do_store); |
| 410 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | |
| 414 | Register PropertyHandlerCompiler::CheckPrototypes( |
| 415 | Register object_reg, Register holder_reg, Register scratch1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 416 | Register scratch2, Handle<Name> name, Label* miss, PrototypeCheckType check, |
| 417 | ReturnHolder return_what) { |
| 418 | Handle<Map> receiver_map = map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 419 | |
| 420 | // Make sure there's no overlap between holder and object registers. |
| 421 | DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 422 | DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg) && |
| 423 | !scratch2.is(scratch1)); |
| 424 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 425 | if (FLAG_eliminate_prototype_chain_checks) { |
| 426 | Handle<Cell> validity_cell = |
| 427 | Map::GetOrCreatePrototypeChainValidityCell(receiver_map, isolate()); |
| 428 | if (!validity_cell.is_null()) { |
| 429 | DCHECK_EQ(Smi::FromInt(Map::kPrototypeChainValid), |
| 430 | validity_cell->value()); |
| 431 | __ li(scratch1, Operand(validity_cell)); |
| 432 | __ ld(scratch1, FieldMemOperand(scratch1, Cell::kValueOffset)); |
| 433 | __ Branch(miss, ne, scratch1, |
| 434 | Operand(Smi::FromInt(Map::kPrototypeChainValid))); |
| 435 | } |
| 436 | |
| 437 | // The prototype chain of primitives (and their JSValue wrappers) depends |
| 438 | // on the native context, which can't be guarded by validity cells. |
| 439 | // |object_reg| holds the native context specific prototype in this case; |
| 440 | // we need to check its map. |
| 441 | if (check == CHECK_ALL_MAPS) { |
| 442 | __ ld(scratch1, FieldMemOperand(object_reg, HeapObject::kMapOffset)); |
| 443 | Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map); |
| 444 | __ GetWeakValue(scratch2, cell); |
| 445 | __ Branch(miss, ne, scratch1, Operand(scratch2)); |
| 446 | } |
| 447 | } |
| 448 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 449 | // Keep track of the current object in register reg. |
| 450 | Register reg = object_reg; |
| 451 | int depth = 0; |
| 452 | |
| 453 | Handle<JSObject> current = Handle<JSObject>::null(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 454 | if (receiver_map->IsJSGlobalObjectMap()) { |
| 455 | current = isolate()->global_object(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 456 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 457 | |
| 458 | // Check access rights to the global object. This has to happen after |
| 459 | // the map check so that we know that the object is actually a global |
| 460 | // object. |
| 461 | // This allows us to install generated handlers for accesses to the |
| 462 | // global proxy (as opposed to using slow ICs). See corresponding code |
| 463 | // in LookupForRead(). |
| 464 | if (receiver_map->IsJSGlobalProxyMap()) { |
| 465 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 466 | } |
| 467 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 468 | Handle<JSObject> prototype = Handle<JSObject>::null(); |
| 469 | Handle<Map> current_map = receiver_map; |
| 470 | Handle<Map> holder_map(holder()->map()); |
| 471 | // Traverse the prototype chain and check the maps in the prototype chain for |
| 472 | // fast and global objects or do negative lookup for normal objects. |
| 473 | while (!current_map.is_identical_to(holder_map)) { |
| 474 | ++depth; |
| 475 | |
| 476 | // Only global objects and objects that do not require access |
| 477 | // checks are allowed in stubs. |
| 478 | DCHECK(current_map->IsJSGlobalProxyMap() || |
| 479 | !current_map->is_access_check_needed()); |
| 480 | |
| 481 | prototype = handle(JSObject::cast(current_map->prototype())); |
| 482 | if (current_map->is_dictionary_map() && |
| 483 | !current_map->IsJSGlobalObjectMap()) { |
| 484 | DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
| 485 | if (!name->IsUniqueName()) { |
| 486 | DCHECK(name->IsString()); |
| 487 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
| 488 | } |
| 489 | DCHECK(current.is_null() || |
| 490 | current->property_dictionary()->FindEntry(name) == |
| 491 | NameDictionary::kNotFound); |
| 492 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 493 | if (FLAG_eliminate_prototype_chain_checks && depth > 1) { |
| 494 | // TODO(jkummerow): Cache and re-use weak cell. |
| 495 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
| 496 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 497 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1, |
| 498 | scratch2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 499 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 500 | __ ld(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 501 | __ ld(holder_reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 502 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 503 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 504 | Register map_reg = scratch1; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 505 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 506 | __ ld(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 507 | } |
| 508 | if (current_map->IsJSGlobalObjectMap()) { |
| 509 | GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current), |
| 510 | name, scratch2, miss); |
| 511 | } else if (!FLAG_eliminate_prototype_chain_checks && |
| 512 | (depth != 1 || check == CHECK_ALL_MAPS)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 513 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 514 | __ GetWeakValue(scratch2, cell); |
| 515 | __ Branch(miss, ne, scratch2, Operand(map_reg)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 516 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 517 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 518 | __ ld(holder_reg, FieldMemOperand(map_reg, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 519 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 520 | } |
| 521 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 522 | 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] | 523 | // Go to the next object in the prototype chain. |
| 524 | current = prototype; |
| 525 | current_map = handle(current->map()); |
| 526 | } |
| 527 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 528 | DCHECK(!current_map->IsJSGlobalProxyMap()); |
| 529 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 530 | // Log the check depth. |
| 531 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 532 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 533 | if (!FLAG_eliminate_prototype_chain_checks && |
| 534 | (depth != 0 || check == CHECK_ALL_MAPS)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 535 | // Check the holder map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 536 | __ ld(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 537 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 538 | __ GetWeakValue(scratch2, cell); |
| 539 | __ Branch(miss, ne, scratch2, Operand(scratch1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 540 | } |
| 541 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 542 | bool return_holder = return_what == RETURN_HOLDER; |
| 543 | if (FLAG_eliminate_prototype_chain_checks && return_holder && depth != 0) { |
| 544 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 545 | } |
| 546 | |
| 547 | // Return the register containing the holder. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 548 | return return_holder ? reg : no_reg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 549 | } |
| 550 | |
| 551 | |
| 552 | void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 553 | if (!miss->is_unused()) { |
| 554 | Label success; |
| 555 | __ Branch(&success); |
| 556 | __ bind(miss); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 557 | if (IC::ICUseVector(kind())) { |
| 558 | DCHECK(kind() == Code::LOAD_IC); |
| 559 | PopVectorAndSlot(); |
| 560 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 561 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 562 | __ bind(&success); |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | |
| 567 | void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 568 | if (!miss->is_unused()) { |
| 569 | Label success; |
| 570 | __ Branch(&success); |
| 571 | GenerateRestoreName(miss, name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 572 | if (IC::ICUseVector(kind())) PopVectorAndSlot(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 573 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 574 | __ bind(&success); |
| 575 | } |
| 576 | } |
| 577 | |
| 578 | |
| 579 | void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
| 580 | // Return the constant value. |
| 581 | __ li(v0, value); |
| 582 | __ Ret(); |
| 583 | } |
| 584 | |
| 585 | |
| 586 | void NamedLoadHandlerCompiler::GenerateLoadCallback( |
| 587 | Register reg, Handle<ExecutableAccessorInfo> callback) { |
| 588 | // Build AccessorInfo::args_ list on the stack and push property name below |
| 589 | // the exit frame to make GC aware of them and store pointers to them. |
| 590 | STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 0); |
| 591 | STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 1); |
| 592 | STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 2); |
| 593 | STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 3); |
| 594 | STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 4); |
| 595 | STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 5); |
| 596 | STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 6); |
| 597 | DCHECK(!scratch2().is(reg)); |
| 598 | DCHECK(!scratch3().is(reg)); |
| 599 | DCHECK(!scratch4().is(reg)); |
| 600 | __ push(receiver()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 601 | Handle<Object> data(callback->data(), isolate()); |
| 602 | if (data->IsUndefined() || data->IsSmi()) { |
| 603 | __ li(scratch3(), data); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 604 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 605 | Handle<WeakCell> cell = |
| 606 | isolate()->factory()->NewWeakCell(Handle<HeapObject>::cast(data)); |
| 607 | // The callback is alive if this instruction is executed, |
| 608 | // so the weak cell is not cleared and points to data. |
| 609 | __ GetWeakValue(scratch3(), cell); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 610 | } |
| 611 | __ Dsubu(sp, sp, 6 * kPointerSize); |
| 612 | __ sd(scratch3(), MemOperand(sp, 5 * kPointerSize)); |
| 613 | __ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex); |
| 614 | __ sd(scratch3(), MemOperand(sp, 4 * kPointerSize)); |
| 615 | __ sd(scratch3(), MemOperand(sp, 3 * kPointerSize)); |
| 616 | __ li(scratch4(), Operand(ExternalReference::isolate_address(isolate()))); |
| 617 | __ sd(scratch4(), MemOperand(sp, 2 * kPointerSize)); |
| 618 | __ sd(reg, MemOperand(sp, 1 * kPointerSize)); |
| 619 | __ sd(name(), MemOperand(sp, 0 * kPointerSize)); |
| 620 | __ Daddu(scratch2(), sp, 1 * kPointerSize); |
| 621 | |
| 622 | __ mov(a2, scratch2()); // Saved in case scratch2 == a1. |
| 623 | // Abi for CallApiGetter. |
| 624 | Register getter_address_reg = ApiGetterDescriptor::function_address(); |
| 625 | |
| 626 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 627 | ApiFunction fun(getter_address); |
| 628 | ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL; |
| 629 | ExternalReference ref = ExternalReference(&fun, type, isolate()); |
| 630 | __ li(getter_address_reg, Operand(ref)); |
| 631 | |
| 632 | CallApiGetterStub stub(isolate()); |
| 633 | __ TailCallStub(&stub); |
| 634 | } |
| 635 | |
| 636 | |
| 637 | void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( |
| 638 | LookupIterator* it, Register holder_reg) { |
| 639 | DCHECK(holder()->HasNamedInterceptor()); |
| 640 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 641 | |
| 642 | // Compile the interceptor call, followed by inline code to load the |
| 643 | // property from further up the prototype chain if the call fails. |
| 644 | // Check that the maps haven't changed. |
| 645 | DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
| 646 | |
| 647 | // Preserve the receiver register explicitly whenever it is different from the |
| 648 | // holder and it is needed should the interceptor return without any result. |
| 649 | // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD |
| 650 | // case might cause a miss during the prototype check. |
| 651 | bool must_perform_prototype_check = |
| 652 | !holder().is_identical_to(it->GetHolder<JSObject>()); |
| 653 | bool must_preserve_receiver_reg = |
| 654 | !receiver().is(holder_reg) && |
| 655 | (it->state() == LookupIterator::ACCESSOR || must_perform_prototype_check); |
| 656 | |
| 657 | // Save necessary data before invoking an interceptor. |
| 658 | // Requires a frame to make GC aware of pushed pointers. |
| 659 | { |
| 660 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
| 661 | if (must_preserve_receiver_reg) { |
| 662 | __ Push(receiver(), holder_reg, this->name()); |
| 663 | } else { |
| 664 | __ Push(holder_reg, this->name()); |
| 665 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 666 | InterceptorVectorSlotPush(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 667 | // Invoke an interceptor. Note: map checks from receiver to |
| 668 | // interceptor's holder has been compiled before (see a caller |
| 669 | // of this method). |
| 670 | CompileCallLoadPropertyWithInterceptor( |
| 671 | masm(), receiver(), holder_reg, this->name(), holder(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 672 | Runtime::kLoadPropertyWithInterceptorOnly); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 673 | |
| 674 | // Check if interceptor provided a value for property. If it's |
| 675 | // the case, return immediately. |
| 676 | Label interceptor_failed; |
| 677 | __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex); |
| 678 | __ Branch(&interceptor_failed, eq, v0, Operand(scratch1())); |
| 679 | frame_scope.GenerateLeaveFrame(); |
| 680 | __ Ret(); |
| 681 | |
| 682 | __ bind(&interceptor_failed); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 683 | InterceptorVectorSlotPop(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 684 | if (must_preserve_receiver_reg) { |
| 685 | __ Pop(receiver(), holder_reg, this->name()); |
| 686 | } else { |
| 687 | __ Pop(holder_reg, this->name()); |
| 688 | } |
| 689 | // Leave the internal frame. |
| 690 | } |
| 691 | |
| 692 | GenerateLoadPostInterceptor(it, holder_reg); |
| 693 | } |
| 694 | |
| 695 | |
| 696 | void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { |
| 697 | // Call the runtime system to load the interceptor. |
| 698 | DCHECK(holder()->HasNamedInterceptor()); |
| 699 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 700 | PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), |
| 701 | holder()); |
| 702 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 703 | __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 704 | } |
| 705 | |
| 706 | |
| 707 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( |
| 708 | Handle<JSObject> object, Handle<Name> name, |
| 709 | Handle<ExecutableAccessorInfo> callback) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 710 | Register holder_reg = Frontend(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 711 | |
| 712 | __ Push(receiver(), holder_reg); // Receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 713 | // If the callback cannot leak, then push the callback directly, |
| 714 | // otherwise wrap it in a weak cell. |
| 715 | if (callback->data()->IsUndefined() || callback->data()->IsSmi()) { |
| 716 | __ li(at, Operand(callback)); |
| 717 | } else { |
| 718 | Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback); |
| 719 | __ li(at, Operand(cell)); |
| 720 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 721 | __ push(at); |
| 722 | __ li(at, Operand(name)); |
| 723 | __ Push(at, value()); |
| 724 | |
| 725 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 726 | __ TailCallRuntime(Runtime::kStoreCallbackProperty); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 727 | |
| 728 | // Return the generated code. |
| 729 | return GetCode(kind(), Code::FAST, name); |
| 730 | } |
| 731 | |
| 732 | |
| 733 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreInterceptor( |
| 734 | Handle<Name> name) { |
| 735 | __ Push(receiver(), this->name(), value()); |
| 736 | |
| 737 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 738 | __ TailCallRuntime(Runtime::kStorePropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 739 | |
| 740 | // Return the generated code. |
| 741 | return GetCode(kind(), Code::FAST, name); |
| 742 | } |
| 743 | |
| 744 | |
| 745 | Register NamedStoreHandlerCompiler::value() { |
| 746 | return StoreDescriptor::ValueRegister(); |
| 747 | } |
| 748 | |
| 749 | |
| 750 | Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal( |
| 751 | Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) { |
| 752 | Label miss; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 753 | if (IC::ICUseVector(kind())) { |
| 754 | PushVectorAndSlot(); |
| 755 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 756 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 757 | FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 758 | |
| 759 | // Get the value from the cell. |
| 760 | Register result = StoreDescriptor::ValueRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 761 | Handle<WeakCell> weak_cell = factory()->NewWeakCell(cell); |
| 762 | __ LoadWeakValue(result, weak_cell, &miss); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 763 | __ ld(result, FieldMemOperand(result, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 764 | |
| 765 | // Check for deleted property if property can actually be deleted. |
| 766 | if (is_configurable) { |
| 767 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 768 | __ Branch(&miss, eq, result, Operand(at)); |
| 769 | } |
| 770 | |
| 771 | Counters* counters = isolate()->counters(); |
| 772 | __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 773 | if (IC::ICUseVector(kind())) { |
| 774 | DiscardVectorAndSlot(); |
| 775 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 776 | __ Ret(USE_DELAY_SLOT); |
| 777 | __ mov(v0, result); |
| 778 | |
| 779 | FrontendFooter(name, &miss); |
| 780 | |
| 781 | // Return the generated code. |
| 782 | return GetCode(kind(), Code::NORMAL, name); |
| 783 | } |
| 784 | |
| 785 | |
| 786 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 787 | } // namespace internal |
| 788 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 789 | |
| 790 | #endif // V8_TARGET_ARCH_MIPS64 |