[runtime] Store constructor function index on primitive maps.

src/ppc/builtins-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/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
@@ skipping 416 matching lines @@
       __ LoadRoot(r10, Heap::kUndefinedValueRootIndex);
 
       if (!is_api_function) {
         Label no_inobject_slack_tracking;
 
         // Check if slack tracking is enabled.
         __ cmpi(r11, Operand(Map::kSlackTrackingCounterEnd));
         __ blt(&no_inobject_slack_tracking);
 
         // Allocate object with a slack.
-        __ lbz(r3, FieldMemOperand(r5, Map::kInObjectPropertiesOffset));
+        __ lbz(
+            r3,
+            FieldMemOperand(
+                r5, Map::kInObjectPropertiesOrConstructorFunctionIndexOffset));
         __ lbz(r5, FieldMemOperand(r5, Map::kUnusedPropertyFieldsOffset));
         __ sub(r3, r3, r5);
         if (FLAG_debug_code) {
           __ ShiftLeftImm(r0, r3, Operand(kPointerSizeLog2));
           __ add(r0, r8, r0);
           // r0: offset of first field after pre-allocated fields
           __ cmp(r0, r9);
           __ Assert(le, kUnexpectedNumberOfPreAllocatedPropertyFields);
         }
         {
@@ skipping 1471 matching lines @@
     __ bkpt(0);
   }
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC