Index: src/VBox/VMM/include/IEMInternal.h
===================================================================
--- src/VBox/VMM/include/IEMInternal.h	(revision 83509)
+++ src/VBox/VMM/include/IEMInternal.h	(working copy)
@@ -956,7 +956,7 @@
 
 #if defined(__GNUC__) && defined(RT_ARCH_X86)
 # define IEM_DECL_IMPL_TYPE(a_RetType, a_Name, a_ArgList) \
-    __attribute__((__fastcall__)) a_RetType (a_Name) a_ArgList
+    __attribute__((__fastcall__, __nothrow__)) a_RetType (a_Name) a_ArgList
 # define IEM_DECL_IMPL_DEF(a_RetType, a_Name, a_ArgList) \
     __attribute__((__fastcall__, __nothrow__)) a_RetType a_Name a_ArgList