* predict.c: Include pointer-set.h.
	(bb_predictions): New variable.
	(tree_predicted_by_p, tree_predict_edge,
	remove_predictions_associated_with_edge): Use bb_predictions map
	instead of bb->predictions.
	(clear_bb_predictions, assert_is_empty): New functions.
	(combine_predictions_for_bb): Use bb_predictions map.  Call
	clear_bb_predictions.
	(tree_estimate_probability): Create and free bb_predictions map.
	* Makefile.in (predict.o): Add pointer-set.h dependency.
	* basic-block.h (struct basic_block_def): Remove predictions
	field.
	* cfgrtl.c (rtl_verify_flow_info_1): Do not check bb->predictions.

From-SVN: r124032