re PR rtl-optimization/64317 (Ineffective allocation of PIC base register)

re PR rtl-optimization/64317 (Ineffective allocation of PIC base register)

2015-02-27  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/64317
	* params.def (PARAM_LRA_INHERITANCE_EBB_PROBABILITY_CUTOFF): New.
	* params.h (LRA_INHERITANCE_EBB_PROBABILITY_CUTOFF): New.
	* lra-constraints.c: Include "params.h".
	(EBB_PROBABILITY_CUTOFF): Use
	LRA_INHERITANCE_EBB_PROBABILITY_CUTOFF.
	(lra_inheritance): Use '<' instead of '<=' for
	EBB_PROBABILITY_CUTOFF.
	* doc/invoke.texi (lra-inheritance-ebb-probability-cutoff):
	Document change.

From-SVN: r221070