--- old/src/share/vm/opto/ad.hpp	2015-02-18 18:54:14.121883290 -0500
+++ new/src/share/vm/opto/ad.hpp	2015-02-18 18:54:13.217832094 -0500
@@ -25,28 +25,19 @@
 #ifndef SHARE_VM_OPTO_AD_HPP
 #define SHARE_VM_OPTO_AD_HPP
 
-#ifdef TARGET_ARCH_MODEL_x86_32
+#if defined AD_MD_HPP
+# include AD_MD_HPP
+#elif defined TARGET_ARCH_MODEL_x86_32
 # include "adfiles/ad_x86_32.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_x86_64
+#elif defined TARGET_ARCH_MODEL_x86_64
 # include "adfiles/ad_x86_64.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_sparc
+#elif defined TARGET_ARCH_MODEL_sparc
 # include "adfiles/ad_sparc.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_zero
+#elif defined TARGET_ARCH_MODEL_zero
 # include "adfiles/ad_zero.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_arm
-# include "adfiles/ad_arm.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_ppc_32
-# include "adfiles/ad_ppc_32.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_ppc_64
+#elif defined TARGET_ARCH_MODEL_ppc_64
 # include "adfiles/ad_ppc_64.hpp"
-#endif
-#ifdef TARGET_ARCH_MODEL_aarch64
+#elif defined TARGET_ARCH_MODEL_aarch64
 # include "adfiles/ad_aarch64.hpp"
 #endif