MIPS: Support for super assignments in for..in.

src/mips/full-codegen-mips.cc

 // Copyright 2012 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_MIPS
 
 // Note on Mips implementation:
 //
@@ skipping 2474 matching lines @@
   JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
   CallIC(code, expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
   context()->Plug(v0);
 }
 
 
 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(result_register());  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
       __ mov(StoreDescriptor::ReceiverRegister(), result_register());
       __ pop(StoreDescriptor::ValueRegister());  // Restore value.
       __ li(StoreDescriptor::NameRegister(),
             Operand(prop->key()->AsLiteral()->value()));
       CallStoreIC();
       break;
     }
+    case NAMED_SUPER_PROPERTY: {
+      __ Push(v0);
+      VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
+      EmitLoadHomeObject(prop->obj()->AsSuperReference());
+      // stack: value, this; v0: home_object
+      Register scratch = a2;
+      Register scratch2 = a3;
+      __ mov(scratch, result_register());             // home_object
+      __ lw(v0, MemOperand(sp, kPointerSize));        // value
+      __ lw(scratch2, MemOperand(sp, 0));             // this
+      __ sw(scratch2, MemOperand(sp, kPointerSize));  // this
+      __ sw(scratch, MemOperand(sp, 0));              // home_object
+      // stack: this, home_object; v0: value
+      EmitNamedSuperPropertyStore(prop);
+      break;
+    }
+    case KEYED_SUPER_PROPERTY: {
+      __ Push(v0);
+      VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
+      EmitLoadHomeObject(prop->obj()->AsSuperReference());
+      __ Push(result_register());
+      VisitForAccumulatorValue(prop->key());
+      Register scratch = a2;
+      Register scratch2 = a3;
+      __ lw(scratch2, MemOperand(sp, 2 * kPointerSize));  // value
+      // stack: value, this, home_object; v0: key, a3: value
+      __ lw(scratch, MemOperand(sp, kPointerSize));  // this
+      __ sw(scratch, MemOperand(sp, 2 * kPointerSize));
+      __ lw(scratch, MemOperand(sp, 0));  // home_object
+      __ sw(scratch, MemOperand(sp, kPointerSize));
+      __ sw(v0, MemOperand(sp, 0));
+      __ Move(v0, scratch2);
+      // stack: this, home_object, key; v0: value.
+      EmitKeyedSuperPropertyStore(prop);
+      break;
+    }
     case KEYED_PROPERTY: {
       __ push(result_register());  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
       __ mov(StoreDescriptor::NameRegister(), result_register());
       __ Pop(StoreDescriptor::ValueRegister(),
              StoreDescriptor::ReceiverRegister());
       Handle<Code> ic =
           CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code();
       CallIC(ic);
@@ skipping 2604 matching lines @@
       Assembler::target_address_at(pc_immediate_load_address)) ==
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS