r126050 - in /trunk/gcc: ChangeLog fwprop.c pos...

[hubicka@gcc.gnu.org]

Author: hubicka
Date: Wed Jun 27 01:21:13 2007
New Revision: 126050

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126050
Log:

	* fwprop.c (try_fwprop_subst): Use validate_unshare_change.
	* postreload.c (reload_cse_simplify_set): Instead of copying the rtx
	early use validate_unshare_change.
	(reload_combine): Likewise.
	* recog.c (change_t): New field unshare.
	(validate_change_1): Rename from validate_change; add argument unshare.
	(validate_change): Turn into wrapper of validate_change_1; update
	prototype for bools.
	(validate_unshare_change): New.
	(confirm_change_group): Unshare changes if asked for; avoid unnecesary
	calls of df_insn_rescan.
	* recog.h (validate_change): Replace ints by bools.
	(validate_unshare_change): Declare.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fwprop.c
    trunk/gcc/postreload.c
    trunk/gcc/recog.c
    trunk/gcc/recog.h