+
+/* Like make_decl_rtl, but inhibit creation of new alias sets when
+ calling make_decl_rtl. Also, reset DECL_RTL before returning the
+ rtl. */
+
+rtx
+make_decl_rtl_for_debug (tree decl)
+{
+ unsigned int save_aliasing_flag, save_mudflap_flag;
+ rtx rtl;
+
+ if (DECL_RTL_SET_P (decl))
+ return DECL_RTL (decl);
+
+ /* Kludge alert! Somewhere down the call chain, make_decl_rtl will
+ call new_alias_set. If running with -fcompare-debug, sometimes
+ we do not want to create alias sets that will throw the alias
+ numbers off in the comparison dumps. So... clearing
+ flag_strict_aliasing will keep new_alias_set() from creating a
+ new set. It is undesirable to register decl with mudflap
+ in this case as well. */
+ save_aliasing_flag = flag_strict_aliasing;
+ flag_strict_aliasing = 0;
+ save_mudflap_flag = flag_mudflap;
+ flag_mudflap = 0;
+
+ rtl = DECL_RTL (decl);
+ /* Reset DECL_RTL back, as various parts of the compiler expects
+ DECL_RTL set meaning it is actually going to be output. */
+ SET_DECL_RTL (decl, NULL);
+
+ flag_strict_aliasing = save_aliasing_flag;
+ flag_mudflap = save_mudflap_flag;
+
+ return rtl;
+}