[crankshaft] Pass new.target to direct function calls.

src/crankshaft/ppc/lithium-codegen-ppc.cc

 // Copyright 2014 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/crankshaft/ppc/lithium-codegen-ppc.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/crankshaft/hydrogen-osr.h"
@@ skipping 3571 matching lines @@
       dont_adapt_arguments || formal_parameter_count == arity;
 
   Register function_reg = r4;
 
   LPointerMap* pointers = instr->pointer_map();
 
   if (can_invoke_directly) {
     // Change context.
     __ LoadP(cp, FieldMemOperand(function_reg, JSFunction::kContextOffset));
 
-    // Always initialize r3 to the number of actual arguments.
+    // Always initialize new target and number of actual arguments.
+    __ LoadRoot(r6, Heap::kUndefinedValueRootIndex);
     __ mov(r3, Operand(arity));
 
     bool is_self_call = function.is_identical_to(info()->closure());
 
     // Invoke function.
     if (is_self_call) {
       __ CallSelf();
     } else {
       __ LoadP(ip, FieldMemOperand(function_reg, JSFunction::kCodeEntryOffset));
       __ CallJSEntry(ip);
@@ skipping 393 matching lines @@
     }
     generator.AfterCall();
   }
 }
 
 
 void LCodeGen::DoCallJSFunction(LCallJSFunction* instr) {
   DCHECK(ToRegister(instr->function()).is(r4));
   DCHECK(ToRegister(instr->result()).is(r3));
 
-  __ mov(r3, Operand(instr->arity()));
-
   // Change context.
   __ LoadP(cp, FieldMemOperand(r4, JSFunction::kContextOffset));
 
+  // Always initialize new target and number of actual arguments.
+  __ LoadRoot(r6, Heap::kUndefinedValueRootIndex);
+  __ mov(r3, Operand(instr->arity()));
+
   bool is_self_call = false;
   if (instr->hydrogen()->function()->IsConstant()) {
     HConstant* fun_const = HConstant::cast(instr->hydrogen()->function());
     Handle<JSFunction> jsfun =
         Handle<JSFunction>::cast(fun_const->handle(isolate()));
     is_self_call = jsfun.is_identical_to(info()->closure());
   }
 
   if (is_self_call) {
     __ CallSelf();
@@ skipping 2024 matching lines @@
   __ Push(scope_info);
   __ push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8