Fix x86-x-ia64 abort while compiling glibc ldbl2mpn.c.

	* function.c (gen_mem_addressof): Clear MEM_ALIAS_SET if no decl.

From-SVN: r35991

gcc/ChangeLog

+2000-08-25  Jim Wilson  <wilson@cygnus.com>
+
+	* function.c (gen_mem_addressof): Clear MEM_ALIAS_SET if no decl.
+
 2000-08-25  Greg McGary  <greg@mcgary.org>
 
 	* flow.c (dump_edge_info): Use ARRAY_SIZE.

gcc/function.c

@@ -2834,7 +2834,12 @@ gen_mem_addressof (reg, decl)
 	fixup_var_refs (reg, GET_MODE (reg), TREE_UNSIGNED (type), 0);
     }
   else
-    fixup_var_refs (reg, GET_MODE (reg), 0, 0);
+    {
+      /* We have no alias information about this newly created MEM.  */
+      MEM_ALIAS_SET (reg) = 0;
+
+      fixup_var_refs (reg, GET_MODE (reg), 0, 0);
+    }
 
   return reg;
 }