diff --git a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
index 4e9f254872e4ce..2516dff52efdfa 100644
--- a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
@@ -888,17 +888,18 @@ bool NVPTXAsmPrinter::doFinalization(Module &M) {
 
   clearAnnotationCache(&M);
 
-  // Close the last emitted section
-  if (HasDebugInfo) {
-    static_cast<NVPTXTargetStreamer *>(OutStreamer->getTargetStreamer())
-        ->closeLastSection();
-    // Emit empty .debug_loc section for better support of the empty files.
-    OutStreamer->emitRawText("\t.section\t.debug_loc\t{\t}");
-  }
+  if (auto *TS = static_cast<NVPTXTargetStreamer *>(
+          OutStreamer->getTargetStreamer())) {
+    // Close the last emitted section
+    if (HasDebugInfo) {
+      TS->closeLastSection();
+      // Emit empty .debug_loc section for better support of the empty files.
+      OutStreamer->emitRawText("\t.section\t.debug_loc\t{\t}");
+    }
 
-  // Output last DWARF .file directives, if any.
-  static_cast<NVPTXTargetStreamer *>(OutStreamer->getTargetStreamer())
-      ->outputDwarfFileDirectives();
+    // Output last DWARF .file directives, if any.
+    TS->outputDwarfFileDirectives();
+  }
 
   return ret;
 
diff --git a/llvm/test/CodeGen/NVPTX/filetype-null.ll b/llvm/test/CodeGen/NVPTX/filetype-null.ll
new file mode 100644
index 00000000000000..06fc51953abfc7
--- /dev/null
+++ b/llvm/test/CodeGen/NVPTX/filetype-null.ll
@@ -0,0 +1,4 @@
+; Check that 'llc' does not crash if '-filetype=null' is used.
+
+; RUN: llc %s -filetype=null -march=nvptx -o -
+; RUN: llc %s -filetype=null -march=nvptx64 -o -