AsmPrinter: Use DIExpression default constructor, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229464 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 6a8c9b5e43fea8a10b68dd52f54a39a0e8426463..81f2329657b13556eaa5012fcdf07f9735cdce89 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -701,7 +701,7 @@ void DwarfCompileUnit::collectDeadVariables(DISubprogram SP) {
   for (unsigned vi = 0, ve = Variables.getNumElements(); vi != ve; ++vi) {
     DIVariable DV(Variables.getElement(vi));
     assert(DV.isVariable());
-    DbgVariable NewVar(DV, DIExpression(nullptr), DD);
+    DbgVariable NewVar(DV, DIExpression(), DD);
     auto VariableDie = constructVariableDIE(NewVar);
     applyVariableAttributes(NewVar, *VariableDie);
     SPDIE->addChild(std::move(VariableDie));