[builtins] Add support for NewTarget to Execution::New.

src/full-codegen/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.
 
 #if V8_TARGET_ARCH_MIPS
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 4018 matching lines @@
 
 
 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));
 
-  // Load original constructor into t0.
-  __ lw(t0, MemOperand(sp, 1 * kPointerSize));
+  // Load original constructor into a3.
+  __ lw(a3, MemOperand(sp, 1 * kPointerSize));
 
   // Check if the calling frame is an arguments adaptor frame.
   Label adaptor_frame, args_set_up, runtime;
   __ lw(a2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
-  __ lw(a3, MemOperand(a2, StandardFrameConstants::kContextOffset));
-  __ Branch(&adaptor_frame, eq, a3,
+  __ lw(t0, MemOperand(a2, StandardFrameConstants::kContextOffset));
+  __ Branch(&adaptor_frame, eq, t0,
             Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
   // default constructor has no arguments, so no adaptor frame means no args.
   __ mov(a0, zero_reg);
   __ Branch(&args_set_up);
 
   // Copy arguments from adaptor frame.
   {
     __ bind(&adaptor_frame);
     __ lw(a1, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset));
     __ SmiUntag(a1, a1);
 
     __ mov(a0, a1);
 
     // Get arguments pointer in a2.
     __ sll(at, a1, kPointerSizeLog2);
     __ addu(a2, a2, at);
     __ Addu(a2, a2, Operand(StandardFrameConstants::kCallerSPOffset));
     Label loop;
     __ bind(&loop);
     // Pre-decrement a2 with kPointerSize on each iteration.
     // Pre-decrement in order to skip receiver.
     __ Addu(a2, a2, Operand(-kPointerSize));
-    __ lw(a3, MemOperand(a2));
-    __ Push(a3);
+    __ lw(t0, MemOperand(a2));
+    __ Push(t0);
     __ Addu(a1, a1, Operand(-1));
     __ Branch(&loop, ne, a1, Operand(zero_reg));
   }
 
   __ bind(&args_set_up);
   __ sll(at, a0, kPointerSizeLog2);
   __ Addu(at, at, Operand(sp));
   __ lw(a1, MemOperand(at, 0));
-  __ LoadRoot(a2, Heap::kUndefinedValueRootIndex);
-
-  CallConstructStub stub(isolate(), SUPER_CONSTRUCTOR_CALL);
-  __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
+  __ Call(isolate()->builtins()->Construct(), RelocInfo::CONSTRUCT_CALL);
 
   // Restore context register.
   __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
 
   context()->DropAndPlug(1, result_register());
 }
 
 
 void FullCodeGenerator::EmitRegExpConstructResult(CallRuntime* expr) {
   RegExpConstructResultStub stub(isolate());
@@ skipping 1140 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS