use auto_vec for more local variables

use auto_vec for more local variables

gcc/c/ChangeLog:

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* c-parser.c (c_parser_generic_selection): Make type of variable
	auto_vec.
	(c_parser_omp_declare_simd): Likewise.

gcc/ChangeLog:

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* cfgexpand.c (expand_used_vars): Make the type of a local variable auto_vec.
	* genmatch.c (lower_for): Likewise.
	* haifa-sched.c (haifa_sched_init): Likewise.
	(add_to_speculative_block): Likewise.
	(create_check_block_twin): Likewise.
	* predict.c (handle_missing_profiles): Likewise.
	* tree-data-ref.c (loop_nest_has_data_refs): Likewise.
	* tree-diagnostic.c (maybe_unwind_expanded_macro_loc): Likewise.
	* tree-ssa-loop-niter.c (discover_iteration_bound_by_body_walk): Likewise.
	(maybe_lower_iteration_bound): Likewise.
	* tree-ssa-sccvn.c (DFS): Likewise.
	* tree-stdarg.c (reachable_at_most_once): Likewise.
	* tree-vect-stmts.c (vectorizable_conversion): Likewise.
	(vectorizable_store): Likewise.

From-SVN: r238285