Support for super assignments in for..in.

src/arm64/full-codegen-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 2154 matching lines @@
     CallIC(code, expr->BinaryOperationFeedbackId());
     patch_site.EmitPatchInfo();
   }
   context()->Plug(x0);
 }
 
 
 void FullCodeGenerator::EmitAssignment(Expression* expr) {
   DCHECK(expr->IsValidReferenceExpression());
 
-  // Left-hand side can only be a property, a global or a (parameter or local)
-  // slot.
-  enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY };
-  LhsKind assign_type = VARIABLE;
   Property* prop = expr->AsProperty();
-  if (prop != NULL) {
-    assign_type = (prop->key()->IsPropertyName())
-        ? NAMED_PROPERTY
-        : KEYED_PROPERTY;
-  }
+  LhsKind assign_type = GetAssignType(prop);
 
   switch (assign_type) {
     case VARIABLE: {
       Variable* var = expr->AsVariableProxy()->var();
       EffectContext context(this);
       EmitVariableAssignment(var, Token::ASSIGN);
       break;
     }
     case NAMED_PROPERTY: {
       __ Push(x0);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
       // TODO(all): We could introduce a VisitForRegValue(reg, expr) to avoid
       // this copy.
       __ Mov(StoreDescriptor::ReceiverRegister(), x0);
       __ Pop(StoreDescriptor::ValueRegister());  // Restore value.
       __ Mov(StoreDescriptor::NameRegister(),
              Operand(prop->key()->AsLiteral()->value()));
       CallStoreIC();
       break;
     }
+    case NAMED_SUPER_PROPERTY: {
+      __ Push(x0);
+      VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
+      EmitLoadHomeObject(prop->obj()->AsSuperReference());
+      // stack: value, this; x0: home_object
+      Register scratch = x10;
+      Register scratch2 = x11;
+      __ mov(scratch, result_register());  // home_object
+      __ Peek(scratch2, kPointerSize);     // value

[Igor Sheludko, 2014/10/13 11:39:07]

Same note here as for arm.

[Dmitry Lomov (no reviews), 2014/10/13 12:39:51]

Done.

+      __ Peek(x0, 0);                      // this
+      __ Poke(x0, kPointerSize);           // this
+      __ Poke(scratch, 0);                 // home_object
+      __ Move(x0, scratch2);
+      // stack: this, home_object; x0: value
+      EmitNamedSuperPropertyStore(prop);
+      break;
+    }
+    case KEYED_SUPER_PROPERTY: {
+      __ Push(x0);
+      VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
+      EmitLoadHomeObject(prop->obj()->AsSuperReference());
+      __ Push(result_register());
+      VisitForAccumulatorValue(prop->key());
+      Register scratch = x10;
+      Register scratch2 = x11;
+      __ Peek(scratch2, 2 * kPointerSize);  // value
+      // stack: value, this, home_object; x0: key, x11: value
+      __ Peek(scratch, kPointerSize);  // this
+      __ Poke(scratch, 2 * kPointerSize);
+      __ Peek(scratch, 0);  // home_object
+      __ Poke(scratch, kPointerSize);
+      __ Poke(x0, 0);
+      __ Move(x0, scratch2);
+      // stack: this, home_object, key; x0: value.
+      EmitKeyedSuperPropertyStore(prop);
+      break;
+    }
     case KEYED_PROPERTY: {
       __ Push(x0);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
       __ Mov(StoreDescriptor::NameRegister(), x0);
       __ Pop(StoreDescriptor::ReceiverRegister(),
              StoreDescriptor::ValueRegister());
       Handle<Code> ic =
           CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code();
       CallIC(ic);
@@ skipping 2966 matching lines @@
   return previous_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64