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_ARM |
| 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 | // -- r0 : receiver |
| 26 | // -- r2 : name |
| 27 | // -- lr : return address |
| 28 | // ----------------------------------- |
| 29 | { |
| 30 | FrameAndConstantPoolScope 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 | __ ldr(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(r1, holder, accessor_index, ACCESSOR_GETTER); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 47 | __ mov(r0, Operand(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 | // -- lr : return address |
| 69 | // ----------------------------------- |
| 70 | { |
| 71 | FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); |
| 72 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 73 | // Save context register |
| 74 | __ push(cp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 75 | // Save value register, so we can restore it later. |
| 76 | __ push(value()); |
| 77 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 78 | if (accessor_index >= 0) { |
| 79 | DCHECK(!holder.is(scratch)); |
| 80 | DCHECK(!receiver.is(scratch)); |
| 81 | DCHECK(!value().is(scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | // Call the JavaScript setter with receiver and value on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 83 | if (map->IsJSGlobalObjectMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 84 | // Swap in the global receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 85 | __ ldr(scratch, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 86 | FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 87 | receiver = scratch; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 88 | } |
| 89 | __ Push(receiver, value()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 90 | __ LoadAccessor(r1, holder, accessor_index, ACCESSOR_SETTER); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 91 | __ mov(r0, Operand(1)); |
| 92 | __ Call(masm->isolate()->builtins()->CallFunction( |
| 93 | ConvertReceiverMode::kNotNullOrUndefined), |
| 94 | RelocInfo::CODE_TARGET); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 95 | } else { |
| 96 | // If we generate a global code snippet for deoptimization only, remember |
| 97 | // the place to continue after deoptimization. |
| 98 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 99 | } |
| 100 | |
| 101 | // We have to return the passed value, not the return value of the setter. |
| 102 | __ pop(r0); |
| 103 | |
| 104 | // Restore context register. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 105 | __ pop(cp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 106 | } |
| 107 | __ Ret(); |
| 108 | } |
| 109 | |
| 110 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 111 | void PropertyHandlerCompiler::PushVectorAndSlot(Register vector, |
| 112 | Register slot) { |
| 113 | MacroAssembler* masm = this->masm(); |
| 114 | __ push(vector); |
| 115 | __ push(slot); |
| 116 | } |
| 117 | |
| 118 | |
| 119 | void PropertyHandlerCompiler::PopVectorAndSlot(Register vector, Register slot) { |
| 120 | MacroAssembler* masm = this->masm(); |
| 121 | __ pop(slot); |
| 122 | __ pop(vector); |
| 123 | } |
| 124 | |
| 125 | |
| 126 | void PropertyHandlerCompiler::DiscardVectorAndSlot() { |
| 127 | MacroAssembler* masm = this->masm(); |
| 128 | // Remove vector and slot. |
| 129 | __ add(sp, sp, Operand(2 * kPointerSize)); |
| 130 | } |
| 131 | |
| 132 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 133 | void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup( |
| 134 | MacroAssembler* masm, Label* miss_label, Register receiver, |
| 135 | Handle<Name> name, Register scratch0, Register scratch1) { |
| 136 | DCHECK(name->IsUniqueName()); |
| 137 | DCHECK(!receiver.is(scratch0)); |
| 138 | Counters* counters = masm->isolate()->counters(); |
| 139 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 140 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 141 | |
| 142 | Label done; |
| 143 | |
| 144 | const int kInterceptorOrAccessCheckNeededMask = |
| 145 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 146 | |
| 147 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 148 | Register map = scratch1; |
| 149 | __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 150 | __ ldrb(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 151 | __ tst(scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 152 | __ b(ne, miss_label); |
| 153 | |
| 154 | // Check that receiver is a JSObject. |
| 155 | __ ldrb(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 156 | __ cmp(scratch0, Operand(FIRST_JS_RECEIVER_TYPE)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 157 | __ b(lt, miss_label); |
| 158 | |
| 159 | // Load properties array. |
| 160 | Register properties = scratch0; |
| 161 | __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 162 | // Check that the properties array is a dictionary. |
| 163 | __ ldr(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 164 | Register tmp = properties; |
| 165 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 166 | __ cmp(map, tmp); |
| 167 | __ b(ne, miss_label); |
| 168 | |
| 169 | // Restore the temporarily used register. |
| 170 | __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 171 | |
| 172 | |
| 173 | NameDictionaryLookupStub::GenerateNegativeLookup( |
| 174 | masm, miss_label, &done, receiver, properties, name, scratch1); |
| 175 | __ bind(&done); |
| 176 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 177 | } |
| 178 | |
| 179 | |
| 180 | void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 181 | MacroAssembler* masm, int index, Register result, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 182 | __ LoadNativeContextSlot(index, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 183 | // Load its initial map. The global functions all have initial maps. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 184 | __ ldr(result, |
| 185 | FieldMemOperand(result, JSFunction::kPrototypeOrInitialMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 186 | // Load the prototype from the initial map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 187 | __ ldr(result, FieldMemOperand(result, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | |
| 191 | void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype( |
| 192 | MacroAssembler* masm, Register receiver, Register scratch1, |
| 193 | Register scratch2, Label* miss_label) { |
| 194 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 195 | __ mov(r0, scratch1); |
| 196 | __ Ret(); |
| 197 | } |
| 198 | |
| 199 | |
| 200 | // Generate code to check that a global property cell is empty. Create |
| 201 | // the property cell at compilation time if no cell exists for the |
| 202 | // property. |
| 203 | void PropertyHandlerCompiler::GenerateCheckPropertyCell( |
| 204 | MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, |
| 205 | Register scratch, Label* miss) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 206 | Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 207 | DCHECK(cell->value()->IsTheHole()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 208 | Handle<WeakCell> weak_cell = masm->isolate()->factory()->NewWeakCell(cell); |
| 209 | __ LoadWeakValue(scratch, weak_cell, miss); |
| 210 | __ ldr(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 211 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 212 | __ cmp(scratch, ip); |
| 213 | __ b(ne, miss); |
| 214 | } |
| 215 | |
| 216 | |
| 217 | static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, |
| 218 | Register holder, Register name, |
| 219 | Handle<JSObject> holder_obj) { |
| 220 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 221 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 1); |
| 222 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 2); |
| 223 | STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 3); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 224 | __ push(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 225 | __ push(receiver); |
| 226 | __ push(holder); |
| 227 | } |
| 228 | |
| 229 | |
| 230 | static void CompileCallLoadPropertyWithInterceptor( |
| 231 | MacroAssembler* masm, Register receiver, Register holder, Register name, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 232 | Handle<JSObject> holder_obj, Runtime::FunctionId id) { |
| 233 | DCHECK(NamedLoadHandlerCompiler::kInterceptorArgsLength == |
| 234 | Runtime::FunctionForId(id)->nargs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 235 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 236 | __ CallRuntime(id); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 237 | } |
| 238 | |
| 239 | |
| 240 | // Generate call to api function. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 241 | void PropertyHandlerCompiler::GenerateApiAccessorCall( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 242 | MacroAssembler* masm, const CallOptimization& optimization, |
| 243 | Handle<Map> receiver_map, Register receiver, Register scratch_in, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 244 | bool is_store, Register store_parameter, Register accessor_holder, |
| 245 | int accessor_index) { |
| 246 | DCHECK(!accessor_holder.is(scratch_in)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 247 | DCHECK(!receiver.is(scratch_in)); |
| 248 | __ push(receiver); |
| 249 | // Write the arguments to stack frame. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 250 | if (is_store) { |
| 251 | DCHECK(!receiver.is(store_parameter)); |
| 252 | DCHECK(!scratch_in.is(store_parameter)); |
| 253 | __ push(store_parameter); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 254 | } |
| 255 | DCHECK(optimization.is_simple_api_call()); |
| 256 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 257 | // Abi for CallApiCallbackStub. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 258 | Register callee = r0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 259 | Register data = r4; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 260 | Register holder = r2; |
| 261 | Register api_function_address = r1; |
| 262 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 263 | // Put callee in place. |
| 264 | __ LoadAccessor(callee, accessor_holder, accessor_index, |
| 265 | is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER); |
| 266 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 267 | // Put holder in place. |
| 268 | CallOptimization::HolderLookup holder_lookup; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 269 | int holder_depth = 0; |
| 270 | optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup, |
| 271 | &holder_depth); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 272 | switch (holder_lookup) { |
| 273 | case CallOptimization::kHolderIsReceiver: |
| 274 | __ Move(holder, receiver); |
| 275 | break; |
| 276 | case CallOptimization::kHolderFound: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 277 | __ ldr(holder, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 278 | __ ldr(holder, FieldMemOperand(holder, Map::kPrototypeOffset)); |
| 279 | for (int i = 1; i < holder_depth; i++) { |
| 280 | __ ldr(holder, FieldMemOperand(holder, HeapObject::kMapOffset)); |
| 281 | __ ldr(holder, FieldMemOperand(holder, Map::kPrototypeOffset)); |
| 282 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 283 | break; |
| 284 | case CallOptimization::kHolderNotFound: |
| 285 | UNREACHABLE(); |
| 286 | break; |
| 287 | } |
| 288 | |
| 289 | Isolate* isolate = masm->isolate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 290 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 291 | bool call_data_undefined = false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 292 | // Put call data in place. |
| 293 | if (api_call_info->data()->IsUndefined()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 294 | call_data_undefined = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 295 | __ LoadRoot(data, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 296 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 297 | if (optimization.is_constant_call()) { |
| 298 | __ ldr(data, |
| 299 | FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset)); |
| 300 | __ ldr(data, |
| 301 | FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset)); |
| 302 | __ ldr(data, |
| 303 | FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset)); |
| 304 | } else { |
| 305 | __ ldr(data, |
| 306 | FieldMemOperand(callee, FunctionTemplateInfo::kCallCodeOffset)); |
| 307 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 308 | __ ldr(data, FieldMemOperand(data, CallHandlerInfo::kDataOffset)); |
| 309 | } |
| 310 | |
| 311 | if (api_call_info->fast_handler()->IsCode()) { |
| 312 | // Just tail call into the fast handler if present. |
| 313 | __ Jump(handle(Code::cast(api_call_info->fast_handler())), |
| 314 | RelocInfo::CODE_TARGET); |
| 315 | return; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 316 | } |
| 317 | |
| 318 | // Put api_function_address in place. |
| 319 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 320 | ApiFunction fun(function_address); |
| 321 | ExternalReference::Type type = ExternalReference::DIRECT_API_CALL; |
| 322 | ExternalReference ref = ExternalReference(&fun, type, masm->isolate()); |
| 323 | __ mov(api_function_address, Operand(ref)); |
| 324 | |
| 325 | // Jump to stub. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 326 | CallApiCallbackStub stub(isolate, is_store, call_data_undefined, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 327 | !optimization.is_constant_call()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 328 | __ TailCallStub(&stub); |
| 329 | } |
| 330 | |
| 331 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 332 | static void StoreIC_PushArgs(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 333 | __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 334 | StoreDescriptor::ValueRegister(), |
| 335 | VectorStoreICDescriptor::SlotRegister(), |
| 336 | VectorStoreICDescriptor::VectorRegister()); |
| 337 | } |
| 338 | |
| 339 | |
| 340 | void NamedStoreHandlerCompiler::GenerateSlow(MacroAssembler* masm) { |
| 341 | StoreIC_PushArgs(masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 342 | |
| 343 | // The slow case calls into the runtime to complete the store without causing |
| 344 | // 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] | 345 | __ TailCallRuntime(Runtime::kStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | |
| 349 | void ElementHandlerCompiler::GenerateStoreSlow(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 350 | StoreIC_PushArgs(masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 351 | |
| 352 | // The slow case calls into the runtime to complete the store without causing |
| 353 | // 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] | 354 | __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 355 | } |
| 356 | |
| 357 | |
| 358 | #undef __ |
| 359 | #define __ ACCESS_MASM(masm()) |
| 360 | |
| 361 | |
| 362 | void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label, |
| 363 | Handle<Name> name) { |
| 364 | if (!label->is_unused()) { |
| 365 | __ bind(label); |
| 366 | __ mov(this->name(), Operand(name)); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 371 | void NamedStoreHandlerCompiler::GenerateRestoreName(Handle<Name> name) { |
| 372 | __ mov(this->name(), Operand(name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 376 | void NamedStoreHandlerCompiler::RearrangeVectorAndSlot( |
| 377 | Register current_map, Register destination_map) { |
| 378 | DCHECK(false); // Not implemented. |
| 379 | } |
| 380 | |
| 381 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 382 | void NamedStoreHandlerCompiler::GenerateRestoreMap(Handle<Map> transition, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 383 | Register map_reg, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 384 | Register scratch, |
| 385 | Label* miss) { |
| 386 | Handle<WeakCell> cell = Map::WeakCellForMap(transition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 387 | DCHECK(!map_reg.is(scratch)); |
| 388 | __ LoadWeakValue(map_reg, cell, miss); |
| 389 | if (transition->CanBeDeprecated()) { |
| 390 | __ ldr(scratch, FieldMemOperand(map_reg, Map::kBitField3Offset)); |
| 391 | __ tst(scratch, Operand(Map::Deprecated::kMask)); |
| 392 | __ b(ne, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 393 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 394 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 395 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 396 | |
| 397 | void NamedStoreHandlerCompiler::GenerateConstantCheck(Register map_reg, |
| 398 | int descriptor, |
| 399 | Register value_reg, |
| 400 | Register scratch, |
| 401 | Label* miss_label) { |
| 402 | DCHECK(!map_reg.is(scratch)); |
| 403 | DCHECK(!map_reg.is(value_reg)); |
| 404 | DCHECK(!value_reg.is(scratch)); |
| 405 | __ LoadInstanceDescriptors(map_reg, scratch); |
| 406 | __ ldr(scratch, |
| 407 | FieldMemOperand(scratch, DescriptorArray::GetValueOffset(descriptor))); |
| 408 | __ cmp(value_reg, scratch); |
| 409 | __ b(ne, miss_label); |
| 410 | } |
| 411 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 412 | void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(FieldType* field_type, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 413 | Register value_reg, |
| 414 | Label* miss_label) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 415 | Register map_reg = scratch1(); |
| 416 | Register scratch = scratch2(); |
| 417 | DCHECK(!value_reg.is(map_reg)); |
| 418 | DCHECK(!value_reg.is(scratch)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 419 | __ JumpIfSmi(value_reg, miss_label); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 420 | if (field_type->IsClass()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 421 | __ ldr(map_reg, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 422 | __ CmpWeakValue(map_reg, Map::WeakCellForMap(field_type->AsClass()), |
| 423 | scratch); |
| 424 | __ b(ne, miss_label); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 425 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | |
| 429 | Register PropertyHandlerCompiler::CheckPrototypes( |
| 430 | Register object_reg, Register holder_reg, Register scratch1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 431 | Register scratch2, Handle<Name> name, Label* miss, PrototypeCheckType check, |
| 432 | ReturnHolder return_what) { |
| 433 | Handle<Map> receiver_map = map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 434 | |
| 435 | // Make sure there's no overlap between holder and object registers. |
| 436 | DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 437 | DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg) && |
| 438 | !scratch2.is(scratch1)); |
| 439 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 440 | if (FLAG_eliminate_prototype_chain_checks) { |
| 441 | Handle<Cell> validity_cell = |
| 442 | Map::GetOrCreatePrototypeChainValidityCell(receiver_map, isolate()); |
| 443 | if (!validity_cell.is_null()) { |
| 444 | DCHECK_EQ(Smi::FromInt(Map::kPrototypeChainValid), |
| 445 | validity_cell->value()); |
| 446 | __ mov(scratch1, Operand(validity_cell)); |
| 447 | __ ldr(scratch1, FieldMemOperand(scratch1, Cell::kValueOffset)); |
| 448 | __ cmp(scratch1, Operand(Smi::FromInt(Map::kPrototypeChainValid))); |
| 449 | __ b(ne, miss); |
| 450 | } |
| 451 | |
| 452 | // The prototype chain of primitives (and their JSValue wrappers) depends |
| 453 | // on the native context, which can't be guarded by validity cells. |
| 454 | // |object_reg| holds the native context specific prototype in this case; |
| 455 | // we need to check its map. |
| 456 | if (check == CHECK_ALL_MAPS) { |
| 457 | __ ldr(scratch1, FieldMemOperand(object_reg, HeapObject::kMapOffset)); |
| 458 | Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map); |
| 459 | __ CmpWeakValue(scratch1, cell, scratch2); |
| 460 | __ b(ne, miss); |
| 461 | } |
| 462 | } |
| 463 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 464 | // Keep track of the current object in register reg. |
| 465 | Register reg = object_reg; |
| 466 | int depth = 0; |
| 467 | |
| 468 | Handle<JSObject> current = Handle<JSObject>::null(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 469 | if (receiver_map->IsJSGlobalObjectMap()) { |
| 470 | current = isolate()->global_object(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 471 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 472 | |
| 473 | // Check access rights to the global object. This has to happen after |
| 474 | // the map check so that we know that the object is actually a global |
| 475 | // object. |
| 476 | // This allows us to install generated handlers for accesses to the |
| 477 | // global proxy (as opposed to using slow ICs). See corresponding code |
| 478 | // in LookupForRead(). |
| 479 | if (receiver_map->IsJSGlobalProxyMap()) { |
| 480 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 481 | } |
| 482 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 483 | Handle<JSObject> prototype = Handle<JSObject>::null(); |
| 484 | Handle<Map> current_map = receiver_map; |
| 485 | Handle<Map> holder_map(holder()->map()); |
| 486 | // Traverse the prototype chain and check the maps in the prototype chain for |
| 487 | // fast and global objects or do negative lookup for normal objects. |
| 488 | while (!current_map.is_identical_to(holder_map)) { |
| 489 | ++depth; |
| 490 | |
| 491 | // Only global objects and objects that do not require access |
| 492 | // checks are allowed in stubs. |
| 493 | DCHECK(current_map->IsJSGlobalProxyMap() || |
| 494 | !current_map->is_access_check_needed()); |
| 495 | |
| 496 | prototype = handle(JSObject::cast(current_map->prototype())); |
| 497 | if (current_map->is_dictionary_map() && |
| 498 | !current_map->IsJSGlobalObjectMap()) { |
| 499 | DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
| 500 | if (!name->IsUniqueName()) { |
| 501 | DCHECK(name->IsString()); |
| 502 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
| 503 | } |
| 504 | DCHECK(current.is_null() || |
| 505 | current->property_dictionary()->FindEntry(name) == |
| 506 | NameDictionary::kNotFound); |
| 507 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 508 | if (FLAG_eliminate_prototype_chain_checks && depth > 1) { |
| 509 | // TODO(jkummerow): Cache and re-use weak cell. |
| 510 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
| 511 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 512 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1, |
| 513 | scratch2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 514 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 515 | __ ldr(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 516 | __ ldr(holder_reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 517 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 518 | } else { |
| 519 | Register map_reg = scratch1; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 520 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 521 | __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 522 | } |
| 523 | if (current_map->IsJSGlobalObjectMap()) { |
| 524 | GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current), |
| 525 | name, scratch2, miss); |
| 526 | } else if (!FLAG_eliminate_prototype_chain_checks && |
| 527 | (depth != 1 || check == CHECK_ALL_MAPS)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 528 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 529 | __ CmpWeakValue(map_reg, cell, scratch2); |
| 530 | __ b(ne, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 531 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 532 | if (!FLAG_eliminate_prototype_chain_checks) { |
| 533 | __ ldr(holder_reg, FieldMemOperand(map_reg, Map::kPrototypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 534 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 535 | } |
| 536 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 537 | 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] | 538 | // Go to the next object in the prototype chain. |
| 539 | current = prototype; |
| 540 | current_map = handle(current->map()); |
| 541 | } |
| 542 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 543 | DCHECK(!current_map->IsJSGlobalProxyMap()); |
| 544 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 545 | // Log the check depth. |
| 546 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 547 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 548 | if (!FLAG_eliminate_prototype_chain_checks && |
| 549 | (depth != 0 || check == CHECK_ALL_MAPS)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 550 | // Check the holder map. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 551 | __ ldr(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 552 | Handle<WeakCell> cell = Map::WeakCellForMap(current_map); |
| 553 | __ CmpWeakValue(scratch1, cell, scratch2); |
| 554 | __ b(ne, miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 555 | } |
| 556 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 557 | bool return_holder = return_what == RETURN_HOLDER; |
| 558 | if (FLAG_eliminate_prototype_chain_checks && return_holder && depth != 0) { |
| 559 | __ LoadWeakValue(reg, isolate()->factory()->NewWeakCell(current), miss); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 560 | } |
| 561 | |
| 562 | // Return the register containing the holder. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 563 | return return_holder ? reg : no_reg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 564 | } |
| 565 | |
| 566 | |
| 567 | void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 568 | if (!miss->is_unused()) { |
| 569 | Label success; |
| 570 | __ b(&success); |
| 571 | __ bind(miss); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 572 | if (IC::ICUseVector(kind())) { |
| 573 | DCHECK(kind() == Code::LOAD_IC); |
| 574 | PopVectorAndSlot(); |
| 575 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 576 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 577 | __ bind(&success); |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | |
| 582 | void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
| 583 | if (!miss->is_unused()) { |
| 584 | Label success; |
| 585 | __ b(&success); |
| 586 | GenerateRestoreName(miss, name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 587 | if (IC::ICUseVector(kind())) PopVectorAndSlot(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 588 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
| 589 | __ bind(&success); |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | |
| 594 | void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
| 595 | // Return the constant value. |
| 596 | __ Move(r0, value); |
| 597 | __ Ret(); |
| 598 | } |
| 599 | |
| 600 | |
| 601 | void NamedLoadHandlerCompiler::GenerateLoadCallback( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 602 | Register reg, Handle<AccessorInfo> callback) { |
| 603 | DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), receiver())); |
| 604 | DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), reg)); |
| 605 | |
| 606 | // Build v8::PropertyCallbackInfo::args_ array on the stack and push property |
| 607 | // name below the exit frame to make GC aware of them. |
| 608 | STATIC_ASSERT(PropertyCallbackArguments::kShouldThrowOnErrorIndex == 0); |
| 609 | STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 1); |
| 610 | STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 2); |
| 611 | STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 3); |
| 612 | STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 4); |
| 613 | STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 5); |
| 614 | STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 6); |
| 615 | STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 7); |
| 616 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 617 | __ push(receiver()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 618 | // Push data from AccessorInfo. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 619 | Handle<Object> data(callback->data(), isolate()); |
| 620 | if (data->IsUndefined() || data->IsSmi()) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 621 | __ Move(scratch2(), data); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 622 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 623 | Handle<WeakCell> cell = |
| 624 | isolate()->factory()->NewWeakCell(Handle<HeapObject>::cast(data)); |
| 625 | // The callback is alive if this instruction is executed, |
| 626 | // so the weak cell is not cleared and points to data. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 627 | __ GetWeakValue(scratch2(), cell); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 628 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 629 | __ push(scratch2()); |
| 630 | __ LoadRoot(scratch2(), Heap::kUndefinedValueRootIndex); |
| 631 | __ Push(scratch2(), scratch2()); |
| 632 | __ mov(scratch2(), Operand(ExternalReference::isolate_address(isolate()))); |
| 633 | __ Push(scratch2(), reg); |
| 634 | __ Push(Smi::FromInt(0)); // should_throw_on_error -> false |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 635 | __ push(name()); |
| 636 | |
| 637 | // Abi for CallApiGetter |
| 638 | Register getter_address_reg = ApiGetterDescriptor::function_address(); |
| 639 | |
| 640 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 641 | ApiFunction fun(getter_address); |
| 642 | ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL; |
| 643 | ExternalReference ref = ExternalReference(&fun, type, isolate()); |
| 644 | __ mov(getter_address_reg, Operand(ref)); |
| 645 | |
| 646 | CallApiGetterStub stub(isolate()); |
| 647 | __ TailCallStub(&stub); |
| 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 | FrameAndConstantPoolScope frame_scope(masm(), StackFrame::INTERNAL); |
| 675 | if (must_preserve_receiver_reg) { |
| 676 | __ Push(receiver(), holder_reg, this->name()); |
| 677 | } else { |
| 678 | __ Push(holder_reg, this->name()); |
| 679 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 680 | InterceptorVectorSlotPush(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 681 | // Invoke an interceptor. Note: map checks from receiver to |
| 682 | // interceptor's holder has been compiled before (see a caller |
| 683 | // of this method.) |
| 684 | CompileCallLoadPropertyWithInterceptor( |
| 685 | masm(), receiver(), holder_reg, this->name(), holder(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 686 | Runtime::kLoadPropertyWithInterceptorOnly); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 687 | |
| 688 | // Check if interceptor provided a value for property. If it's |
| 689 | // the case, return immediately. |
| 690 | Label interceptor_failed; |
| 691 | __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex); |
| 692 | __ cmp(r0, scratch1()); |
| 693 | __ b(eq, &interceptor_failed); |
| 694 | frame_scope.GenerateLeaveFrame(); |
| 695 | __ Ret(); |
| 696 | |
| 697 | __ bind(&interceptor_failed); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 698 | InterceptorVectorSlotPop(holder_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 699 | __ pop(this->name()); |
| 700 | __ pop(holder_reg); |
| 701 | if (must_preserve_receiver_reg) { |
| 702 | __ pop(receiver()); |
| 703 | } |
| 704 | // Leave the internal frame. |
| 705 | } |
| 706 | |
| 707 | GenerateLoadPostInterceptor(it, holder_reg); |
| 708 | } |
| 709 | |
| 710 | |
| 711 | void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { |
| 712 | // Call the runtime system to load the interceptor. |
| 713 | DCHECK(holder()->HasNamedInterceptor()); |
| 714 | DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
| 715 | PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), |
| 716 | holder()); |
| 717 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 718 | __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | |
| 722 | Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 723 | Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback, |
| 724 | LanguageMode language_mode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 725 | Register holder_reg = Frontend(name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 726 | |
| 727 | __ push(receiver()); // receiver |
| 728 | __ push(holder_reg); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 729 | |
| 730 | // If the callback cannot leak, then push the callback directly, |
| 731 | // otherwise wrap it in a weak cell. |
| 732 | if (callback->data()->IsUndefined() || callback->data()->IsSmi()) { |
| 733 | __ mov(ip, Operand(callback)); |
| 734 | } else { |
| 735 | Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback); |
| 736 | __ mov(ip, Operand(cell)); |
| 737 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 738 | __ push(ip); |
| 739 | __ mov(ip, Operand(name)); |
| 740 | __ Push(ip, value()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 741 | __ Push(Smi::FromInt(language_mode)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 742 | |
| 743 | // Do tail-call to the runtime system. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 744 | __ TailCallRuntime(Runtime::kStoreCallbackProperty); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 745 | |
| 746 | // Return the generated code. |
| 747 | return GetCode(kind(), Code::FAST, name); |
| 748 | } |
| 749 | |
| 750 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 751 | Register NamedStoreHandlerCompiler::value() { |
| 752 | return StoreDescriptor::ValueRegister(); |
| 753 | } |
| 754 | |
| 755 | |
| 756 | Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal( |
| 757 | Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) { |
| 758 | Label miss; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 759 | if (IC::ICUseVector(kind())) { |
| 760 | PushVectorAndSlot(); |
| 761 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 762 | FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 763 | |
| 764 | // Get the value from the cell. |
| 765 | Register result = StoreDescriptor::ValueRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 766 | Handle<WeakCell> weak_cell = factory()->NewWeakCell(cell); |
| 767 | __ LoadWeakValue(result, weak_cell, &miss); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 768 | __ ldr(result, FieldMemOperand(result, PropertyCell::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 769 | |
| 770 | // Check for deleted property if property can actually be deleted. |
| 771 | if (is_configurable) { |
| 772 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 773 | __ cmp(result, ip); |
| 774 | __ b(eq, &miss); |
| 775 | } |
| 776 | |
| 777 | Counters* counters = isolate()->counters(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 778 | __ IncrementCounter(counters->ic_named_load_global_stub(), 1, r1, r3); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 779 | if (IC::ICUseVector(kind())) { |
| 780 | DiscardVectorAndSlot(); |
| 781 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 782 | __ Ret(); |
| 783 | |
| 784 | FrontendFooter(name, &miss); |
| 785 | |
| 786 | // Return the generated code. |
| 787 | return GetCode(kind(), Code::NORMAL, name); |
| 788 | } |
| 789 | |
| 790 | |
| 791 | #undef __ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 792 | } // namespace internal |
| 793 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 794 | |
| 795 | #endif // V8_TARGET_ARCH_ARM |