PPC: [runtime] Fix ES6 9.2.1 [[Call]] when encountering a classConstructor.

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 3442 matching lines @@
   Register result = ToRegister(instr->result());
   Register scratch = scratch0();
 
   // If the receiver is null or undefined, we have to pass the global
   // object as a receiver to normal functions. Values have to be
   // passed unchanged to builtins and strict-mode functions.
   Label global_object, result_in_receiver;
 
   if (!instr->hydrogen()->known_function()) {
     // Do not transform the receiver to object for strict mode
-    // functions.
+    // functions or builtins.
     __ LoadP(scratch,
              FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset));
     __ lwz(scratch,
            FieldMemOperand(scratch, SharedFunctionInfo::kCompilerHintsOffset));
-    __ TestBit(scratch,
-#if V8_TARGET_ARCH_PPC64
-               SharedFunctionInfo::kStrictModeFunction,
-#else
-               SharedFunctionInfo::kStrictModeFunction + kSmiTagSize,
-#endif
-               r0);
-    __ bne(&result_in_receiver, cr0);
-
-    // Do not transform the receiver to object for builtins.
-    __ TestBit(scratch,
-#if V8_TARGET_ARCH_PPC64
-               SharedFunctionInfo::kNative,
-#else
-               SharedFunctionInfo::kNative + kSmiTagSize,
-#endif
-               r0);
+    __ andi(r0, scratch, Operand((1 << SharedFunctionInfo::kStrictModeBit) |
+                                 (1 << SharedFunctionInfo::kNativeBit)));
     __ bne(&result_in_receiver, cr0);
   }
 
   // Normal function. Replace undefined or null with global receiver.
   __ LoadRoot(scratch, Heap::kNullValueRootIndex);
   __ cmp(receiver, scratch);
   __ beq(&global_object);
   __ LoadRoot(scratch, Heap::kUndefinedValueRootIndex);
   __ cmp(receiver, scratch);
   __ beq(&global_object);
@@ skipping 2585 matching lines @@
   __ Push(scope_info);
   __ push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8