[ORC] Restore the narrower check from before r328687.

This should get the builders green again while I investigate why r328706 was
insufficient.

llvm-svn: 328711

llvm/unittests/ExecutionEngine/Orc/OrcTestCommon.h

@@ -62,7 +62,8 @@ public:
       const Triple& TT = TM->getTargetTriple();
 
       // Bail out for windows platforms. We do not support these yet.
-      if (TT.isOSWindows())
+      if ((TT.getArch() != Triple::x86_64 && TT.getArch() != Triple::x86) ||
+           TT.isOSWindows())
         return;
 
       // Target can JIT?