Adjust rangers recomputation depth based on the number of BBs.

Adjust rangers recomputation depth based on the number of BBs.

As the number of block increase, recomputations can become more
expensive.  Adjust the depth limit to avoid excessive compile time.

	PR tree-optimization/114855
	* gimple-range-gori.cc (gori_compute::gori_compute): Adjust
	ranger_recompute_depth limit based on the number of BBs.
	(gori_compute::may_recompute_p): Use previosuly calculated value.
	* gimple-range-gori.h (gori_compute::m_recompute_depth): New.