13-02-2014  Ilmir Usmanov  <i.usmanov@samsung.com>

	Add OpenACC 1.0 support to GENERIC, except loop directive and subarrays.

	Dmitry Bocharnikov <dmitry.b@samsung.com>
	Evgeny Gavrin <e.gavrin@samsung.com>
	Ilmir Usmanov <i.usmanov@samsung.com>

	gcc/
	* gimplify.c (is_gimple_stmt): Stub OpenACC directives and clauses.
	(gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses): Likewise.
	(gimplify_expr): Likewise.
	* omp-low.c (scan_sharing_clauses): Likewise.
	(gimple_code_is_oacc): New helper function.
	(scan_sharing_clauses): Use it.
	* tree-core.h 
	(OMP_CLAUSE_HOST, OMP_CLAUSE_OACC_DEVICE, OMP_CLAUSE_DEVICE_RESIDENT,
	OMP_CLAUSE_USE_DEVICE, OMP_CLAUSE_GANG, OMP_CLAUSE_WAIT,
	OMP_NO_CLAUSE_CACHE, OMP_CLAUSE_INDEPENDENT, OMP_CLAUSE_ASYNC,
	OMP_CLAUSE_WORKER, OMP_CLAUSE_VECTOR, OMP_CLAUSE_NUM_GANGS,
	OMP_CLAUSE_NUM_WORKERS, OMP_CLAUSE_VECTOR_LENGTH): New clauses.
	* tree-pretty-print.c (dump_omp_clause): Print OpenACC clause.
	(dump_generic_node): Print OpenACC directives and its clauses.
	* tree.c (omp_clause_num_ops): Add OpenACC clauses.
	(omp_clause_code_name): Likewise.
	(walk_tree_1): Likewise.
	* tree.def (OACC_KERNELS): New tree node.
	(OACC_DATA, OACC_HOST_DATA, OACC_DECLARE, OACC_UPDATE): Likewise.
	(OACC_ENTER_DATA, OACC_EXIT_DATA, OACC_WAIT, OACC_CACHE): Likewise.
	* tree.h (OACC_KERNELS_BODY): New macros.
	(OACC_KERNELS_CLAUSES, OACC_CLAUSE_NUM_GANGS_EXPR, 
	OMP_CLAUSE_NUM_WORKERS_EXPR, OMP_CLAUSE_VECTOR_LENGTH_EXPR, 
	OMP_CLAUSE_VECTOR_EXPR, OMP_CLAUSE_WORKER_EXPR, OMP_CLAUSE_GANG_EXPR, 
	OMP_CLAUSE_ASYNC_EXPR, OMP_WAIT_EXPR, OACC_DATA_BODY, OACC_DATA_CLAUSES,
	OACC_DECLARE_CLAUSES, OACC_UPDATE_CLAUSES, OACC_WAIT_CLAUSES, 
	OACC_CACHE_CLAUSES, OACC_HOST_DATA_BODY, 
	OACC_HOST_DATA_CLAUSES): Likewise.
	gcc/doc/
	* generic.texi: Document OACC_KERNELS, OACC_DATA, OACC_HOST_DATA, 
	OACC_DECLARE, OACC_UPDATE, OACC_ENTER_DATA, OACC_EXIT_DATA, OACC_WAIT, 
	OACC_CACHE.