diff --git a/llvm/tools/llvm-as/llvm-as.cpp b/llvm/tools/llvm-as/llvm-as.cpp
index 9f0f162..7d04b4d 100644
--- a/llvm/tools/llvm-as/llvm-as.cpp
+++ b/llvm/tools/llvm-as/llvm-as.cpp
@@ -59,6 +59,11 @@
     cl::desc("Preserve use-list order when writing LLVM bitcode."),
     cl::init(true), cl::Hidden);
 
+static cl::opt<std::string> ClDataLayout("data-layout",
+                                         cl::desc("data layout string to use"),
+                                         cl::value_desc("layout-string"),
+                                         cl::init(""));
+
 static void WriteOutputFile(const Module *M) {
   // Infer the output filename if needed.
   if (OutputFilename.empty()) {
@@ -97,8 +102,8 @@
 
   // Parse the file now...
   SMDiagnostic Err;
-  std::unique_ptr<Module> M =
-      parseAssemblyFile(InputFilename, Err, Context, nullptr, !DisableVerify);
+  std::unique_ptr<Module> M = parseAssemblyFile(
+      InputFilename, Err, Context, nullptr, !DisableVerify, ClDataLayout);
   if (!M.get()) {
     Err.print(argv[0], errs());
     return 1;