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Side by Side Diff: src/compiler/js-native-context-specialization.cc

Issue 2890363002: Fix deoptmization of inlined TF InstanceOf to call ToBoolean (Closed)
Patch Set: Review feedback Created 3 years, 6 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/compiler/js-native-context-specialization.h" 5 #include "src/compiler/js-native-context-specialization.h"
6 6
7 #include "src/accessors.h" 7 #include "src/accessors.h"
8 #include "src/code-factory.h" 8 #include "src/code-factory.h"
9 #include "src/compilation-dependencies.h" 9 #include "src/compilation-dependencies.h"
10 #include "src/compiler/access-builder.h" 10 #include "src/compiler/access-builder.h"
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168 168
169 return NoChange(); 169 return NoChange();
170 } 170 }
171 171
172 Reduction JSNativeContextSpecialization::ReduceJSInstanceOf(Node* node) { 172 Reduction JSNativeContextSpecialization::ReduceJSInstanceOf(Node* node) {
173 DCHECK_EQ(IrOpcode::kJSInstanceOf, node->opcode()); 173 DCHECK_EQ(IrOpcode::kJSInstanceOf, node->opcode());
174 Node* object = NodeProperties::GetValueInput(node, 0); 174 Node* object = NodeProperties::GetValueInput(node, 0);
175 Node* constructor = NodeProperties::GetValueInput(node, 1); 175 Node* constructor = NodeProperties::GetValueInput(node, 1);
176 Node* context = NodeProperties::GetContextInput(node); 176 Node* context = NodeProperties::GetContextInput(node);
177 Node* effect = NodeProperties::GetEffectInput(node); 177 Node* effect = NodeProperties::GetEffectInput(node);
178 Node* frame_state = NodeProperties::GetFrameStateInput(node);
178 Node* control = NodeProperties::GetControlInput(node); 179 Node* control = NodeProperties::GetControlInput(node);
179 180
180 // Check if the right hand side is a known {receiver}. 181 // Check if the right hand side is a known {receiver}.
181 HeapObjectMatcher m(constructor); 182 HeapObjectMatcher m(constructor);
182 if (!m.HasValue() || !m.Value()->IsJSObject()) return NoChange(); 183 if (!m.HasValue() || !m.Value()->IsJSObject()) return NoChange();
183 Handle<JSObject> receiver = Handle<JSObject>::cast(m.Value()); 184 Handle<JSObject> receiver = Handle<JSObject>::cast(m.Value());
184 Handle<Map> receiver_map(receiver->map(), isolate()); 185 Handle<Map> receiver_map(receiver->map(), isolate());
185 186
186 // Compute property access info for @@hasInstance on {receiver}. 187 // Compute property access info for @@hasInstance on {receiver}.
187 PropertyAccessInfo access_info; 188 PropertyAccessInfo access_info;
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237 FieldIndex field_index = access_info.field_index(); 238 FieldIndex field_index = access_info.field_index();
238 constant = JSObject::FastPropertyAt(holder, Representation::Tagged(), 239 constant = JSObject::FastPropertyAt(holder, Representation::Tagged(),
239 field_index); 240 field_index);
240 } 241 }
241 DCHECK(constant->IsCallable()); 242 DCHECK(constant->IsCallable());
242 243
243 // Monomorphic property access. 244 // Monomorphic property access.
244 effect = BuildCheckMaps(constructor, effect, control, 245 effect = BuildCheckMaps(constructor, effect, control,
245 access_info.receiver_maps()); 246 access_info.receiver_maps());
246 247
248 // Create a nested frame state inside the current method's most-recent frame
249 // state that will ensure that deopts that happen after this point will not
250 // fallback to the last Checkpoint--which would completely re-execute the
251 // instanceof logic--but rather create an activation of a version of the
252 // ToBoolean stub that finishes the remaining work of instanceof and returns
253 // to the caller without duplicating side-effects upon a lazy deopt.
254 Node* continuation_frame_state = CreateStubBuiltinContinuationFrameState(
255 jsgraph(), Builtins::kToBooleanLazyDeoptContinuation, context, nullptr,
256 0, frame_state, ContinuationFrameStateMode::LAZY);
257
247 // Call the @@hasInstance handler. 258 // Call the @@hasInstance handler.
248 Node* target = jsgraph()->Constant(constant); 259 Node* target = jsgraph()->Constant(constant);
249 node->InsertInput(graph()->zone(), 0, target); 260 node->InsertInput(graph()->zone(), 0, target);
250 node->ReplaceInput(1, constructor); 261 node->ReplaceInput(1, constructor);
251 node->ReplaceInput(2, object); 262 node->ReplaceInput(2, object);
263 node->ReplaceInput(4, continuation_frame_state);
252 node->ReplaceInput(5, effect); 264 node->ReplaceInput(5, effect);
253 NodeProperties::ChangeOp( 265 NodeProperties::ChangeOp(
254 node, javascript()->Call(3, CallFrequency(), VectorSlotPair(), 266 node, javascript()->Call(3, CallFrequency(), VectorSlotPair(),
255 ConvertReceiverMode::kNotNullOrUndefined)); 267 ConvertReceiverMode::kNotNullOrUndefined));
256 268
257 // Rewire the value uses of {node} to ToBoolean conversion of the result. 269 // Rewire the value uses of {node} to ToBoolean conversion of the result.
258 Node* value = graph()->NewNode(javascript()->ToBoolean(ToBooleanHint::kAny), 270 Node* value = graph()->NewNode(javascript()->ToBoolean(ToBooleanHint::kAny),
259 node, context); 271 node, context);
260 for (Edge edge : node->use_edges()) { 272 for (Edge edge : node->use_edges()) {
261 if (NodeProperties::IsValueEdge(edge) && edge.from() != value) { 273 if (NodeProperties::IsValueEdge(edge) && edge.from() != value) {
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2614 return jsgraph()->javascript(); 2626 return jsgraph()->javascript();
2615 } 2627 }
2616 2628
2617 SimplifiedOperatorBuilder* JSNativeContextSpecialization::simplified() const { 2629 SimplifiedOperatorBuilder* JSNativeContextSpecialization::simplified() const {
2618 return jsgraph()->simplified(); 2630 return jsgraph()->simplified();
2619 } 2631 }
2620 2632
2621 } // namespace compiler 2633 } // namespace compiler
2622 } // namespace internal 2634 } // namespace internal
2623 } // namespace v8 2635 } // namespace v8
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