Revert of [es6] Super call in arrows and eval

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 56e3a5fc44731b5c77d3f6e2dd43203189268a8d..c81f346d13cc86a87c4fcb95d105ce9f673f68b0 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -249,24 +249,6 @@
         }
       }
     }
-  }
-
-  // Possibly set up a local binding to the this function which is used in
-  // derived constructors with super calls.
-  Variable* this_function_var = scope()->this_function_var();
-  if (this_function_var != nullptr) {
-    Comment cmnt(masm_, "[ This function");
-    SetVar(this_function_var, a1, a2, a3);
-  }
-
-  Variable* new_target_var = scope()->new_target_var();
-  if (new_target_var != nullptr) {
-    Comment cmnt(masm_, "[ new.target");
-    // new.target is parameter -2.
-    int offset = 2 * kPointerSize +
-                 (info_->scope()->num_parameters() + 1) * kPointerSize;
-    __ lw(v0, MemOperand(fp, offset));
-    SetVar(new_target_var, v0, a2, a3);
   }
 
   Variable* home_object_var = scope()->home_object_var();
@@ -2006,10 +1988,9 @@
       }
       break;
     case NAMED_SUPER_PROPERTY:
-      VisitForStackValue(
-          property->obj()->AsSuperPropertyReference()->this_var());
+      VisitForStackValue(property->obj()->AsSuperReference()->this_var());
       VisitForAccumulatorValue(
-          property->obj()->AsSuperPropertyReference()->home_object_var());
+          property->obj()->AsSuperReference()->home_object_var());
       __ Push(result_register());
       if (expr->is_compound()) {
         const Register scratch = a1;
@@ -2019,10 +2000,9 @@
       break;
     case KEYED_SUPER_PROPERTY: {
       const Register scratch = a1;
-      VisitForStackValue(
-          property->obj()->AsSuperPropertyReference()->this_var());
+      VisitForStackValue(property->obj()->AsSuperReference()->this_var());
       VisitForAccumulatorValue(
-          property->obj()->AsSuperPropertyReference()->home_object_var());
+          property->obj()->AsSuperReference()->home_object_var());
       __ Move(scratch, result_register());
       VisitForAccumulatorValue(property->key());
       __ Push(scratch, result_register());
@@ -2656,9 +2636,9 @@
     }
     case NAMED_SUPER_PROPERTY: {
       __ Push(v0);
-      VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
+      VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
       VisitForAccumulatorValue(
-          prop->obj()->AsSuperPropertyReference()->home_object_var());
+          prop->obj()->AsSuperReference()->home_object_var());
       // stack: value, this; v0: home_object
       Register scratch = a2;
       Register scratch2 = a3;
@@ -2673,9 +2653,8 @@
     }
     case KEYED_SUPER_PROPERTY: {
       __ Push(v0);
-      VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          prop->obj()->AsSuperPropertyReference()->home_object_var());
+      VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
+      VisitForStackValue(prop->obj()->AsSuperReference()->home_object_var());
       VisitForAccumulatorValue(prop->key());
       Register scratch = a2;
       Register scratch2 = a3;
@@ -2904,9 +2883,8 @@
       __ Move(LoadDescriptor::ReceiverRegister(), v0);
       EmitNamedPropertyLoad(expr);
     } else {
-      VisitForStackValue(expr->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          expr->obj()->AsSuperPropertyReference()->home_object_var());
+      VisitForStackValue(expr->obj()->AsSuperReference()->this_var());
+      VisitForStackValue(expr->obj()->AsSuperReference()->home_object_var());
       EmitNamedSuperPropertyLoad(expr);
     }
   } else {
@@ -2917,9 +2895,8 @@
       __ pop(LoadDescriptor::ReceiverRegister());
       EmitKeyedPropertyLoad(expr);
     } else {
-      VisitForStackValue(expr->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          expr->obj()->AsSuperPropertyReference()->home_object_var());
+      VisitForStackValue(expr->obj()->AsSuperReference()->this_var());
+      VisitForStackValue(expr->obj()->AsSuperReference()->home_object_var());
       VisitForStackValue(expr->key());
       EmitKeyedSuperPropertyLoad(expr);
     }
@@ -2981,7 +2958,7 @@
   DCHECK(!key->value()->IsSmi());
   // Load the function from the receiver.
   const Register scratch = a1;
-  SuperPropertyReference* super_ref = prop->obj()->AsSuperPropertyReference();
+  SuperReference* super_ref = prop->obj()->AsSuperReference();
   VisitForAccumulatorValue(super_ref->home_object_var());
   __ mov(scratch, v0);
   VisitForAccumulatorValue(super_ref->this_var());
@@ -3039,7 +3016,7 @@
   SetSourcePosition(prop->position());
   // Load the function from the receiver.
   const Register scratch = a1;
-  SuperPropertyReference* super_ref = prop->obj()->AsSuperPropertyReference();
+  SuperReference* super_ref = prop->obj()->AsSuperReference();
   VisitForAccumulatorValue(super_ref->home_object_var());
   __ Move(scratch, v0);
   VisitForAccumulatorValue(super_ref->this_var());
@@ -3119,8 +3096,15 @@
 }
 
 
+void FullCodeGenerator::EmitLoadSuperConstructor() {
+  __ lw(a0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ Push(a0);
+  __ CallRuntime(Runtime::kGetPrototype, 1);
+}
+
+
 void FullCodeGenerator::EmitInitializeThisAfterSuper(
-    SuperCallReference* super_ref, FeedbackVectorICSlot slot) {
+    SuperReference* super_ref, FeedbackVectorICSlot slot) {
   Variable* this_var = super_ref->this_var()->var();
   GetVar(a1, this_var);
   __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
@@ -3278,7 +3262,7 @@
   // Push constructor on the stack.  If it's not a function it's used as
   // receiver for CALL_NON_FUNCTION, otherwise the value on the stack is
   // ignored.
-  DCHECK(!expr->expression()->IsSuperPropertyReference());
+  DCHECK(!expr->expression()->IsSuperReference());
   VisitForStackValue(expr->expression());
 
   // Push the arguments ("left-to-right") on the stack.
@@ -3314,14 +3298,11 @@
 
 
 void FullCodeGenerator::EmitSuperConstructorCall(Call* expr) {
-  SuperCallReference* super_call_ref =
-      expr->expression()->AsSuperCallReference();
-  DCHECK_NOT_NULL(super_call_ref);
-
-  VariableProxy* new_target_proxy = super_call_ref->new_target_var();
-  VisitForStackValue(new_target_proxy);
-
-  EmitLoadSuperConstructor(super_call_ref);
+  Variable* new_target_var = scope()->DeclarationScope()->new_target_var();
+  GetVar(result_register(), new_target_var);
+  __ Push(result_register());
+
+  EmitLoadSuperConstructor();
   __ push(result_register());
 
   // Push the arguments ("left-to-right") on the stack.
@@ -3359,7 +3340,8 @@
 
   RecordJSReturnSite(expr);
 
-  EmitInitializeThisAfterSuper(super_call_ref, expr->CallFeedbackICSlot());
+  EmitInitializeThisAfterSuper(expr->expression()->AsSuperReference(),
+                               expr->CallFeedbackICSlot());
   context()->Plug(v0);
 }
 
@@ -4245,15 +4227,11 @@
 
 
 void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  // new.target
-  VisitForStackValue(args->at(0));
-
-  // .this_function
-  VisitForStackValue(args->at(1));
-  __ CallRuntime(Runtime::kGetPrototype, 1);
+  Variable* new_target_var = scope()->DeclarationScope()->new_target_var();
+  GetVar(result_register(), new_target_var);
+  __ Push(result_register());
+
+  EmitLoadSuperConstructor();
   __ Push(result_register());
 
   // Check if the calling frame is an arguments adaptor frame.
@@ -4655,14 +4633,11 @@
 
 void FullCodeGenerator::EmitCallSuperWithSpread(CallRuntime* expr) {
   // Assert: expr == CallRuntime("ReflectConstruct")
-  DCHECK_EQ(1, expr->arguments()->length());
   CallRuntime* call = expr->arguments()->at(0)->AsCallRuntime();
-
   ZoneList<Expression*>* args = call->arguments();
   DCHECK_EQ(3, args->length());
 
-  SuperCallReference* super_call_ref = args->at(0)->AsSuperCallReference();
-  DCHECK_NOT_NULL(super_call_ref);
+  SuperReference* super_reference = args->at(0)->AsSuperReference();
 
   // Load ReflectConstruct function
   EmitLoadJSRuntimeFunction(call);
@@ -4672,8 +4647,8 @@
   __ push(at);
   __ sw(v0, MemOperand(sp, kPointerSize));
 
-  // Push super constructor
-  EmitLoadSuperConstructor(super_call_ref);
+  // Push super
+  EmitLoadSuperConstructor();
   __ Push(result_register());
 
   // Push arguments array
@@ -4690,7 +4665,7 @@
   context()->DropAndPlug(1, v0);
 
   // TODO(mvstanton): with FLAG_vector_stores this needs a slot id.
-  EmitInitializeThisAfterSuper(super_call_ref);
+  EmitInitializeThisAfterSuper(super_reference);
 }
 
 
@@ -4915,9 +4890,9 @@
       }
 
       case NAMED_SUPER_PROPERTY: {
-        VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
+        VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
         VisitForAccumulatorValue(
-            prop->obj()->AsSuperPropertyReference()->home_object_var());
+            prop->obj()->AsSuperReference()->home_object_var());
         __ Push(result_register());
         const Register scratch = a1;
         __ lw(scratch, MemOperand(sp, kPointerSize));
@@ -4927,9 +4902,9 @@
       }
 
       case KEYED_SUPER_PROPERTY: {
-        VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
+        VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
         VisitForAccumulatorValue(
-            prop->obj()->AsSuperPropertyReference()->home_object_var());
+            prop->obj()->AsSuperReference()->home_object_var());
         const Register scratch = a1;
         const Register scratch1 = t0;
         __ Move(scratch, result_register());