| Index: src/arm64/codegen-arm64.cc | 
| diff --git a/src/arm64/codegen-arm64.cc b/src/arm64/codegen-arm64.cc | 
| index 59ce8f2f8873bc13df61bd98a968455ba49ee9ad..8176044fe129f88dde4cbfc90ec105fcde0faba1 100644 | 
| --- a/src/arm64/codegen-arm64.cc | 
| +++ b/src/arm64/codegen-arm64.cc | 
| @@ -367,7 +367,8 @@ void ElementsTransitionGenerator::GenerateDoubleToObject( | 
| } | 
|  | 
|  | 
| -CodeAgingHelper::CodeAgingHelper() { | 
| +CodeAgingHelper::CodeAgingHelper(Isolate* isolate) { | 
| +  USE(isolate); | 
| DCHECK(young_sequence_.length() == kNoCodeAgeSequenceLength); | 
| // The sequence of instructions that is patched out for aging code is the | 
| // following boilerplate stack-building prologue that is found both in | 
|  |