[builtins] Don't put doubles on the stack in ConstructWithSpread.

src/builtins/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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 2840 matching lines @@
            ContextMemOperand(
                scratch2, Context::INITIAL_ARRAY_ITERATOR_PROTOTYPE_MAP_INDEX));
   __ cmp(scratch, scratch2);
   __ bne(&runtime_call);
 
   // For FastPacked kinds, iteration will have the same effect as simply
   // accessing each property in order.
   Label no_protector_check;
   __ LoadP(scratch, FieldMemOperand(spread_map, Map::kBitField2Offset));
   __ DecodeField<Map::ElementsKindBits>(scratch);
-  __ cmpi(scratch, Operand(LAST_FAST_ELEMENTS_KIND));
+  __ cmpi(scratch, Operand(FAST_HOLEY_ELEMENTS));
   __ bgt(&runtime_call);
   // For non-FastHoley kinds, we can skip the protector check.
   __ cmpi(scratch, Operand(FAST_SMI_ELEMENTS));
   __ beq(&no_protector_check);
   __ cmpi(scratch, Operand(FAST_ELEMENTS));
   __ beq(&no_protector_check);
-  __ cmpi(scratch, Operand(FAST_DOUBLE_ELEMENTS));
-  __ beq(&no_protector_check);
   // Check the ArrayProtector cell.
   __ LoadRoot(scratch, Heap::kArrayProtectorRootIndex);
   __ LoadP(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset));
   __ CmpSmiLiteral(scratch, Smi::FromInt(Isolate::kProtectorValid), r0);
   __ bne(&runtime_call);
 
   __ bind(&no_protector_check);
   // Load the FixedArray backing store.
   __ LoadP(spread, FieldMemOperand(spread, JSArray::kElementsOffset));
   __ b(&push_args);
@@ skipping 226 matching lines @@
     __ CallRuntime(Runtime::kThrowStackOverflow);
     __ bkpt(0);
   }
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC