gcc/

gcc/
	PR rtl-optimization/63340 (part 2)
	* rtl.h (invalid_mode_change_p): Delete.
	(valid_mode_changes_for_regno): New function.
	* reginfo.c (invalid_mode_change_p): Delete.
	(valid_mode_changes_for_regno): New function.
	* ira-costs.c (setup_regno_cost_classes_by_aclass): Restrict the
	classes to registers that are allowed by valid_mode_changes_for_regno.
	(setup_regno_cost_classes_by_mode): Likewise.
	(print_allocno_costs): Remove invalid_mode_change_p test.
	(print_pseudo_costs, find_costs_and_classes): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216829 138bc75d-0d04-0410-961f-82ee72b054a4