r221763 - in /trunk/gcc: ChangeLog doc/invoke.t...

[hubicka@gcc.gnu.org]

Author: hubicka
Date: Sun Mar 29 15:38:52 2015
New Revision: 221763

URL: https://gcc.gnu.org/viewcvs?rev=221763&root=gcc&view=rev
Log:

	PR ipa/65478
	* params.def (PARAM_IPA_CP_RECURSION_PENALTY) : New.
	(PARAM_IPA_CP_SINGLE_CALL_PENALTY): Likewise.
	* ipa-prop.h (ipa_node_params): New flags node_within_scc and
	node_calling_single_call.
	* ipa-cp.c (count_callers): New function.
	(set_single_call_flag): Likewise.
	(initialize_node_lattices): Count callers and set single_flag_call if
	necessary.
	(incorporate_penalties): New function.
	(good_cloning_opportunity_p): Use it, dump new flags.
	(propagate_constants_topo): Set node_within_scc flag if appropriate.
	* doc/invoke.texi (ipa-cp-recursion-penalty,
	ipa-cp-single-call-pentalty): Document.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi
    trunk/gcc/ipa-cp.c
    trunk/gcc/ipa-prop.h
    trunk/gcc/params.def