diff --git a/clang/lib/Driver/ToolChains/Arch/ARM.cpp b/clang/lib/Driver/ToolChains/Arch/ARM.cpp
--- a/clang/lib/Driver/ToolChains/Arch/ARM.cpp
+++ b/clang/lib/Driver/ToolChains/Arch/ARM.cpp
@@ -37,9 +37,12 @@
 // '-mbig-endian'/'-EB'. Unlike other targets the flag does not result in a
 // normalized triple so we must handle the flag here.
 bool arm::isARMBigEndian(const llvm::Triple &Triple, const ArgList &Args) {
-  if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
-                               options::OPT_mbig_endian)) {
-    return !A->getOption().matches(options::OPT_mlittle_endian);
+  if ((Triple.getArch() == llvm::Triple::arm ||
+       Triple.getArch() == llvm::Triple::thumb)) {
+    if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
+                                 options::OPT_mbig_endian)) {
+      return !A->getOption().matches(options::OPT_mlittle_endian);
+    }
   }
 
   return Triple.getArch() == llvm::Triple::armeb ||