Index: flang/lib/Frontend/FrontendActions.cpp
===================================================================
--- flang/lib/Frontend/FrontendActions.cpp
+++ flang/lib/Frontend/FrontendActions.cpp
@@ -595,7 +595,9 @@
   std::string error;
   const llvm::Target *theTarget =
       llvm::TargetRegistry::lookupTarget(theTriple, error);
-  assert(theTarget && "Failed to create Target");
+  if (!theTarget)
+    llvm::report_fatal_error(llvm::Twine("Failed to create Target: ") + error,
+                             false);
 
   // Create `TargetMachine`
   const auto &CGOpts = ci.getInvocation().getCodeGenOpts();