PPC: [stubs] Introduce a dedicated FastNewObjectStub.

src/ppc/macro-assembler-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 <assert.h>  // For assert
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
@@ skipping 2733 matching lines @@
     STATIC_ASSERT(kSmiTag == 0);
     TestIfSmi(object, r0);
     Check(ne, kOperandIsASmiAndNotABoundFunction, cr0);
     push(object);
     CompareObjectType(object, object, object, JS_BOUND_FUNCTION_TYPE);
     pop(object);
     Check(eq, kOperandIsNotABoundFunction);
   }
 }
 
+void MacroAssembler::AssertReceiver(Register object) {
+  if (emit_debug_code()) {
+    STATIC_ASSERT(kSmiTag == 0);
+    TestIfSmi(object, r0);
+    Check(ne, kOperandIsASmiAndNotAReceiver, cr0);
+    push(object);
+    STATIC_ASSERT(LAST_TYPE == LAST_JS_RECEIVER_TYPE);
+    CompareObjectType(object, object, object, FIRST_JS_RECEIVER_TYPE);
+    pop(object);
+    Check(ge, kOperandIsNotAReceiver);
+  }
+}
 
 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object,
                                                      Register scratch) {
   if (emit_debug_code()) {
     Label done_checking;
     AssertNotSmi(object);
     CompareRoot(object, Heap::kUndefinedValueRootIndex);
     beq(&done_checking);
     LoadP(scratch, FieldMemOperand(object, HeapObject::kMapOffset));
     CompareRoot(scratch, Heap::kAllocationSiteMapRootIndex);
@@ skipping 1624 matching lines @@
   }
   if (mag.shift > 0) srawi(result, result, mag.shift);
   ExtractBit(r0, dividend, 31);
   add(result, result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC