Fix `-Wunused-variable` warning. NFC.

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 38f0ed5..9916f6e 100644 (file)
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1081,7 +1081,7 @@ void DwarfCompileUnit::constructAbstractSubprogramScopeDIE(
     LexicalScope *Scope) {
 
   auto *SP = cast<DISubprogram>(Scope->getScopeNode());
-  if (auto *SPDie = getAbstractScopeDIEs().lookup(SP))
+  if (getAbstractScopeDIEs().count(SP))
     return;
 
   DIE *ContextDIE;