* ipa-icf.c (sem_function::init): Fix formating; skip GIMPLE_PREDICT.
	(sem_item::add_expr): New function.
	(sem_function::hash_stmt): Handle operands of most statements.
	(sem_variable::get_hash): Hash the actual constructor.
	* ipa-icf.h (sem_item): Add add_expr.
	(sem_function): Update prototype of hash_stmt

From-SVN: r221092