[18/46] Make SLP_TREE_SCALAR_STMTS a vec<stmt_vec_info>

[18/46] Make SLP_TREE_SCALAR_STMTS a vec<stmt_vec_info>

This patch changes SLP_TREE_SCALAR_STMTS from a vec<gimple *> to
a vec<stmt_vec_info>.  It's longer than the previous conversions
but mostly mechanical.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vectorizer.h (_slp_tree::stmts): Change from a vec<gimple *>
	to a vec<stmt_vec_info>.
	* tree-vect-slp.c (vect_free_slp_tree): Update accordingly.
	(vect_create_new_slp_node): Take a vec<gimple *> instead of a
	vec<stmt_vec_info>.
	(_slp_oprnd_info::def_stmts): Change from a vec<gimple *>
	to a vec<stmt_vec_info>.
	(bst_traits::value_type, bst_traits::value_type): Likewise.
	(bst_traits::hash): Update accordingly.
	(vect_get_and_check_slp_defs): Change the stmts parameter from
	a vec<gimple *> to a vec<stmt_vec_info>.
	(vect_two_operations_perm_ok_p, vect_build_slp_tree_1): Likewise.
	(vect_build_slp_tree): Likewise.
	(vect_build_slp_tree_2): Likewise.  Update uses of
	SLP_TREE_SCALAR_STMTS.
	(vect_print_slp_tree): Update uses of SLP_TREE_SCALAR_STMTS.
	(vect_mark_slp_stmts, vect_mark_slp_stmts_relevant)
	(vect_slp_rearrange_stmts, vect_attempt_slp_rearrange_stmts)
	(vect_supported_load_permutation_p, vect_find_last_scalar_stmt_in_slp)
	(vect_detect_hybrid_slp_stmts, vect_slp_analyze_node_operations_1)
	(vect_slp_analyze_node_operations, vect_slp_analyze_operations)
	(vect_bb_slp_scalar_cost, vect_slp_analyze_bb_1)
	(vect_get_constant_vectors, vect_get_slp_defs)
	(vect_transform_slp_perm_load, vect_schedule_slp_instance)
	(vect_remove_slp_scalar_calls, vect_schedule_slp): Likewise.
	(vect_analyze_slp_instance): Build up a vec of stmt_vec_infos
	instead of gimple stmts.
	* tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Change
	the stores parameter for a vec<gimple *> to a vec<stmt_vec_info>.
	(vect_slp_analyze_instance_dependence): Update uses of
	SLP_TREE_SCALAR_STMTS.
	(vect_slp_analyze_and_verify_node_alignment): Likewise.
	(vect_slp_analyze_and_verify_instance_alignment): Likewise.
	* tree-vect-loop.c (neutral_op_for_slp_reduction): Likewise.
	(get_initial_defs_for_reduction): Likewise.
	(vect_create_epilog_for_reduction): Likewise.
	(vectorize_fold_left_reduction): Likewise.
	* tree-vect-stmts.c (vect_prologue_cost_for_slp_op): Likewise.
	(vect_model_simple_cost, vectorizable_shift, vectorizable_load)
	(can_vectorize_live_stmts): Likewise.

From-SVN: r263133