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Issue 2041963003: [elements] Precisely estimate elements size for large-object limits (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: add missing method on string wrapper Created 4 years, 1 month ago
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1 // Copyright 2016 the V8 project authors. All rights reserved. 1 // Copyright 2016 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-create-lowering.h" 5 #include "src/compiler/js-create-lowering.h"
6 6
7 #include "src/allocation-site-scopes.h" 7 #include "src/allocation-site-scopes.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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1172 } 1172 }
1173 elements_values[i] = the_hole_value; 1173 elements_values[i] = the_hole_value;
1174 } else { 1174 } else {
1175 elements_values[i] = jsgraph()->Constant(elements->get_scalar(i)); 1175 elements_values[i] = jsgraph()->Constant(elements->get_scalar(i));
1176 } 1176 }
1177 } 1177 }
1178 } else { 1178 } else {
1179 Handle<FixedArray> elements = 1179 Handle<FixedArray> elements =
1180 Handle<FixedArray>::cast(boilerplate_elements); 1180 Handle<FixedArray>::cast(boilerplate_elements);
1181 for (int i = 0; i < elements_length; ++i) { 1181 for (int i = 0; i < elements_length; ++i) {
1182 if (elements->is_the_hole(i)) { 1182 if (elements->is_the_hole(isolate(), i)) {
1183 elements_values[i] = jsgraph()->TheHoleConstant(); 1183 elements_values[i] = jsgraph()->TheHoleConstant();
1184 } else { 1184 } else {
1185 Handle<Object> element_value(elements->get(i), isolate()); 1185 Handle<Object> element_value(elements->get(i), isolate());
1186 if (element_value->IsJSObject()) { 1186 if (element_value->IsJSObject()) {
1187 Handle<JSObject> boilerplate_object = 1187 Handle<JSObject> boilerplate_object =
1188 Handle<JSObject>::cast(element_value); 1188 Handle<JSObject>::cast(element_value);
1189 Handle<AllocationSite> current_site = site_context->EnterNewScope(); 1189 Handle<AllocationSite> current_site = site_context->EnterNewScope();
1190 elements_values[i] = effect = AllocateFastLiteral( 1190 elements_values[i] = effect = AllocateFastLiteral(
1191 effect, control, boilerplate_object, site_context); 1191 effect, control, boilerplate_object, site_context);
1192 site_context->ExitScope(current_site, boilerplate_object); 1192 site_context->ExitScope(current_site, boilerplate_object);
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1252 return jsgraph()->simplified(); 1252 return jsgraph()->simplified();
1253 } 1253 }
1254 1254
1255 MachineOperatorBuilder* JSCreateLowering::machine() const { 1255 MachineOperatorBuilder* JSCreateLowering::machine() const {
1256 return jsgraph()->machine(); 1256 return jsgraph()->machine();
1257 } 1257 }
1258 1258
1259 } // namespace compiler 1259 } // namespace compiler
1260 } // namespace internal 1260 } // namespace internal
1261 } // namespace v8 1261 } // namespace v8
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