PR rtl-optimization/31396

	PR rtl-optimization/31396
	* regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
	* cfg.c (dump_reg_info): Print it.
	* regs.h (struct reg_info_t): add freq_calls_crossed.
	(REG_FREQ_CALLS_CROSSED): New macro.
	* global.c (global_alloc): Compute freq_calls_crossed for allocno.
	(find_reg): Update call of CALLER_SAVE_PROFITABLE.
	* regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
	regmove_optimize): Update call crossed frequencies.
	* local-alloc.c (struct qty): Add freq_calls_crossed.
	(alloc_qty): Copute freq_calls_crossed.
	(update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
	(find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
	* ra.h (struct allocno): Add freq_calls_crossed.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@131576 138bc75d-0d04-0410-961f-82ee72b054a4