diff --git a/mlir/include/mlir/Dialect/LLVMIR/LLVMOpBase.td b/mlir/include/mlir/Dialect/LLVMIR/LLVMOpBase.td
--- a/mlir/include/mlir/Dialect/LLVMIR/LLVMOpBase.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/LLVMOpBase.td
@@ -35,6 +35,9 @@
     /// Uses `reportError` to report errors.
     static LogicalResult verifyDataLayoutString(
         StringRef descr, llvm::function_ref<void (const Twine &)> reportError);
+
+    /// Name of the target triple attribute.
+    static StringRef getTargetTripleAttrName() { return "llvm.target_triple"; }
   }];
 }
 
diff --git a/mlir/lib/Target/LLVMIR/DebugTranslation.cpp b/mlir/lib/Target/LLVMIR/DebugTranslation.cpp
--- a/mlir/lib/Target/LLVMIR/DebugTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/DebugTranslation.cpp
@@ -48,6 +48,17 @@
   if (!llvmModule.getModuleFlag(debugVersionKey))
     llvmModule.addModuleFlag(llvm::Module::Warning, debugVersionKey,
                              llvm::DEBUG_METADATA_VERSION);
+
+  if (auto targetTripleAttr =
+          module->getAttr(LLVM::LLVMDialect::getTargetTripleAttrName())) {
+    auto targetTriple =
+        llvm::Triple(targetTripleAttr.cast<StringAttr>().getValue());
+    if (targetTriple.isKnownWindowsMSVCEnvironment()) {
+      // Dwarf debugging files will be generated by default, unless "CodeView"
+      // is set explicitly. Windows/MSVC should use CodeView instead.
+      llvmModule.addModuleFlag(llvm::Module::Warning, "CodeView", 1);
+    }
+  }
 }
 
 /// Finalize the translation of debug information.