PPC: Refine "Test for var declarations in eval which conflict with let".

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/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
@@ skipping 794 matching lines @@
       Comment cmnt(masm_, "[ VariableDeclaration");
       __ mov(r5, Operand(variable->name()));
       // Declaration nodes are always introduced in one of four modes.
       DCHECK(IsDeclaredVariableMode(mode));
       // Push initial value, if any.
       // Note: For variables we must not push an initial value (such as
       // 'undefined') because we may have a (legal) redeclaration and we
       // must not destroy the current value.
       if (hole_init) {
         __ LoadRoot(r3, Heap::kTheHoleValueRootIndex);
-        __ Push(r5, r3);
       } else {
         __ LoadSmiLiteral(r3, Smi::FromInt(0));  // Indicates no initial value.
-        __ Push(r5, r3);
       }
-      __ LoadSmiLiteral(
-          r3, Smi::FromInt(variable->DeclarationPropertyAttributes()));
-      __ Push(r3);
+      __ Push(r5, r3);
+      __ Push(Smi::FromInt(variable->DeclarationPropertyAttributes()));
       __ CallRuntime(Runtime::kDeclareLookupSlot, 3);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitFunctionDeclaration(
     FunctionDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
@@ skipping 31 matching lines @@
       PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
       break;
     }
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       __ mov(r5, Operand(variable->name()));
       __ Push(r5);
       // Push initial value for function declaration.
       VisitForStackValue(declaration->fun());
-      __ LoadSmiLiteral(
-          r5, Smi::FromInt(variable->DeclarationPropertyAttributes()));
-      __ Push(r5);
+      __ Push(Smi::FromInt(variable->DeclarationPropertyAttributes()));
       __ CallRuntime(Runtime::kDeclareLookupSlot, 3);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
   __ mov(r4, Operand(pairs));
@@ skipping 4344 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC