r137571 - in /trunk/gcc: ChangeLog tree-flow-in...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Jul  7 15:11:29 2008
New Revision: 137571

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=137571
Log:
2008-07-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/36713
	* tree-flow-inline.h (is_call_used): New function.
	* tree-nrv.c (dest_safe_for_nrv_p): Use it.
	* tree-tailcall.c (suitable_for_tail_opt_p): Likewise.
	* tree-outof-ssa.c (create_temp): Set call-used flag if required.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-flow-inline.h
    trunk/gcc/tree-nrv.c
    trunk/gcc/tree-outof-ssa.c
    trunk/gcc/tree-tailcall.c