PPC: [fullcode][mips][mips64][ppc][s390] Avoid trashing of a home object when doing a keyed store t…

src/full-codegen/ppc/full-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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1647 matching lines @@
       break;
     case KEYED_SUPER_PROPERTY: {
       VisitForStackValue(
           property->obj()->AsSuperPropertyReference()->this_var());
       VisitForStackValue(
           property->obj()->AsSuperPropertyReference()->home_object());
       VisitForAccumulatorValue(property->key());
       PushOperand(result_register());
       if (expr->is_compound()) {
         const Register scratch1 = r5;
-        const Register scratch = r4;
+        const Register scratch2 = r4;
         __ LoadP(scratch1, MemOperand(sp, 2 * kPointerSize));
         __ LoadP(scratch2, MemOperand(sp, 1 * kPointerSize));
         PushOperands(scratch1, scratch2, result_register());
       }
       break;
     }
     case KEYED_PROPERTY:
       if (expr->is_compound()) {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
@@ skipping 2081 matching lines @@
 
   DCHECK(Assembler::IsCrSet(Assembler::instr_at(cmp_address)));
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC