Pass vec_perm_indices by reference
This patch makes functions take vec_perm_indices by reference rather
than value, since a later patch will turn vec_perm_indices into a class
that would be more expensive to copy.
2018-01-02 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
* optabs-query.c (can_vec_perm_p): Likewise.
* fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
instead of vec_perm_indices.
* tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
(vect_gen_perm_mask_checked): Likewise,
* tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
(vect_gen_perm_mask_checked): Likewise,
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@256090 138bc75d-0d04-0410-961f-82ee72b054a4