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

src/crankshaft/x87/lithium-codegen-x87.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_X87
 
 #include "src/crankshaft/x87/lithium-codegen-x87.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 3544 matching lines @@
       formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel;
   bool can_invoke_directly =
       dont_adapt_arguments || formal_parameter_count == arity;
 
   Register function_reg = edi;
 
   if (can_invoke_directly) {
     // Change context.
     __ mov(esi, FieldOperand(function_reg, JSFunction::kContextOffset));
 
-    // Always initialize eax to the number of actual arguments.
+    // Always initialize new target and number of actual arguments.
+    __ mov(edx, factory()->undefined_value());
     __ mov(eax, arity);
 
     // Invoke function directly.
     if (function.is_identical_to(info()->closure())) {
       __ CallSelf();
     } else {
       __ call(FieldOperand(function_reg, JSFunction::kCodeEntryOffset));
     }
     RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT);
   } else {
@@ skipping 42 matching lines @@
     }
     generator.AfterCall();
   }
 }
 
 
 void LCodeGen::DoCallJSFunction(LCallJSFunction* instr) {
   DCHECK(ToRegister(instr->function()).is(edi));
   DCHECK(ToRegister(instr->result()).is(eax));
 
-  __ mov(eax, instr->arity());
-
   // Change context.
   __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
 
+  // Always initialize new target and number of actual arguments.
+  __ mov(edx, factory()->undefined_value());
+  __ mov(eax, 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 2623 matching lines @@
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87