Hi All,

This is a small refactoring which exposes some helper functions in the
vectorizer so they can be used in other places.

Bootstrapped Regtested on aarch64-none-linux-gnu and no issues.

Ok for master?

Thanks,
Tamar

gcc/ChangeLog:

	* tree-vect-patterns.c (vect_mark_pattern_stmts): Remove static.
	* tree-vect-slp.c (vect_free_slp_tree,
	vect_build_slp_tree): Remove static.
	(struct bst_traits, bst_traits::hash, bst_traits::equal): Move...
	* tree-vectorizer.h (struct bst_traits, bst_traits::hash,
	bst_traits::equal): ... to here.
	(vect_mark_pattern_stmts, vect_free_slp_tree,
	vect_build_slp_tree): Declare.

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