[es6] Remove the %DefaultConstructorCallSuper intrinsic.

src/full-codegen/x64/full-codegen-x64.cc

Index: src/full-codegen/x64/full-codegen-x64.cc
diff --git a/src/full-codegen/x64/full-codegen-x64.cc b/src/full-codegen/x64/full-codegen-x64.cc
index 961cefa4f52404982174e120bc40ede50f7e1538..dc1354b3ce37ce43ffae46f6369016c1f5c28bc9 100644
--- a/src/full-codegen/x64/full-codegen-x64.cc
+++ b/src/full-codegen/x64/full-codegen-x64.cc
@@ -3603,57 +3603,6 @@ void FullCodeGenerator::EmitCall(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  // Evaluate new.target and super constructor.
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-
-  // Call the construct call builtin that handles allocation and
-  // constructor invocation.
-  SetConstructCallPosition(expr);
-
-  // Check if the calling frame is an arguments adaptor frame.
-  Label adaptor_frame, args_set_up, runtime;
-  __ movp(rdx, Operand(rbp, StandardFrameConstants::kCallerFPOffset));
-  __ movp(rbx, Operand(rdx, StandardFrameConstants::kContextOffset));
-  __ Cmp(rbx, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
-  __ j(equal, &adaptor_frame);
-  // default constructor has no arguments, so no adaptor frame means no args.
-  __ movp(rax, Immediate(0));
-  __ jmp(&args_set_up);
-
-  // Copy arguments from adaptor frame.
-  {
-    __ bind(&adaptor_frame);
-    __ movp(rbx, Operand(rdx, ArgumentsAdaptorFrameConstants::kLengthOffset));
-    __ SmiToInteger64(rbx, rbx);
-
-    __ movp(rax, rbx);
-    __ leap(rdx, Operand(rdx, rbx, times_pointer_size,
-                         StandardFrameConstants::kCallerSPOffset));
-    Label loop;
-    __ bind(&loop);
-    __ Push(Operand(rdx, -1 * kPointerSize));
-    __ subp(rdx, Immediate(kPointerSize));
-    __ decp(rbx);
-    __ j(not_zero, &loop);
-  }
-
-  __ bind(&args_set_up);
-  __ movp(rdx, Operand(rsp, rax, times_pointer_size, 1 * kPointerSize));
-  __ movp(rdi, Operand(rsp, rax, times_pointer_size, 0 * kPointerSize));
-  __ Call(isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
-
-  // Restore context register.
-  __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-
-  context()->DropAndPlug(1, rax);
-}
-
-
 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);