diff --git a/llvm/unittests/DebugInfo/DWARF/DWARFDieTest.cpp b/llvm/unittests/DebugInfo/DWARF/DWARFDieTest.cpp
--- a/llvm/unittests/DebugInfo/DWARF/DWARFDieTest.cpp
+++ b/llvm/unittests/DebugInfo/DWARF/DWARFDieTest.cpp
@@ -183,11 +183,9 @@
   std::string DeclFile = MainDie.getDeclFile(
       DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath);
 
-#if defined(_WIN32)
-  EXPECT_EQ(DeclFile, "/tmp\\main.cpp");
-#else
-  EXPECT_EQ(DeclFile, "/tmp/main.cpp");
-#endif
+  std::string Ref =
+      ("/tmp" + llvm::sys::path::get_separator() + "main.cpp").str();
+  EXPECT_EQ(DeclFile, Ref);
 }
 
 TEST(DWARFDie, getDeclFileAbstractOrigin) {
@@ -291,11 +289,9 @@
   std::string DeclFile = MainDie.getDeclFile(
       DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath);
 
-#if defined(_WIN32)
-  EXPECT_EQ(DeclFile, "/tmp\\main.cpp");
-#else
-  EXPECT_EQ(DeclFile, "/tmp/main.cpp");
-#endif
+  std::string Ref =
+      ("/tmp" + llvm::sys::path::get_separator() + "main.cpp").str();
+  EXPECT_EQ(DeclFile, Ref);
 }
 
 TEST(DWARFDie, getDeclFileSpecification) {
@@ -398,11 +394,9 @@
   std::string DeclFile = MainDie.getDeclFile(
       DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath);
 
-#if defined(_WIN32)
-  EXPECT_EQ(DeclFile, "/tmp\\main.cpp");
-#else
-  EXPECT_EQ(DeclFile, "/tmp/main.cpp");
-#endif
+  std::string Ref =
+      ("/tmp" + llvm::sys::path::get_separator() + "main.cpp").str();
+  EXPECT_EQ(DeclFile, Ref);
 }
 
 TEST(DWARFDie, getDeclFileAbstractOriginAcrossCUBoundary) {
@@ -522,11 +516,9 @@
   std::string DeclFile = MainDie.getDeclFile(
       DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath);
 
-#if defined(_WIN32)
-  EXPECT_EQ(DeclFile, "/tmp\\main.cpp");
-#else
-  EXPECT_EQ(DeclFile, "/tmp/main.cpp");
-#endif
+  std::string Ref =
+      ("/tmp" + llvm::sys::path::get_separator() + "main.cpp").str();
+  EXPECT_EQ(DeclFile, Ref);
 }
 
 TEST(DWARFDie, getDeclFileSpecificationAcrossCUBoundary) {
@@ -646,11 +638,9 @@
   std::string DeclFile = MainDie.getDeclFile(
       DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath);
 
-#if defined(_WIN32)
-  EXPECT_EQ(DeclFile, "/tmp\\main.cpp");
-#else
-  EXPECT_EQ(DeclFile, "/tmp/main.cpp");
-#endif
+  std::string Ref =
+      ("/tmp" + llvm::sys::path::get_separator() + "main.cpp").str();
+  EXPECT_EQ(DeclFile, Ref);
 }
 
 } // end anonymous namespace