function.c (assign_parms): Force MEM_EXPR (DECL_INCOMING_RTL (parm)) == parm.

	* function.c (assign_parms): Force
	MEM_EXPR (DECL_INCOMING_RTL (parm)) == parm.

From-SVN: r80882

gcc/ChangeLog

 2004-04-20  Josef Zlomek  <zlomekj@suse.cz>
 
+	* function.c (assign_parms): Force
+	MEM_EXPR (DECL_INCOMING_RTL (parm)) == parm.
+
+2004-04-20  Josef Zlomek  <zlomekj@suse.cz>
+
 	* var-tracking.c (variable_part_different_p): Variable parts differ
 	when the most recent locations differ.
 

gcc/function.c

@@ -5267,6 +5267,12 @@ assign_parms (tree fndecl)
 	    {
 	      SET_DECL_RTL (parm, DECL_RTL (fnargs));
 	      set_decl_incoming_rtl (parm, DECL_INCOMING_RTL (fnargs));
+
+	      /* Set MEM_EXPR to the original decl, i.e. to PARM,
+		 instead of the copy of decl, i.e. FNARGS.  */
+	      if (DECL_INCOMING_RTL (parm)
+		  && GET_CODE (DECL_INCOMING_RTL (parm)) == MEM)
+		set_mem_expr (DECL_INCOMING_RTL (parm), parm);
 	    }
 	  fnargs = TREE_CHAIN (fnargs);
 	}