2015-10-23  Julian Brown  <julian@codesourcery.com>
	    James Norris  <jnorris@codesourcery.com>

	gcc/c-family/	
	* c-pragma.c (oacc_pragmas): Add host_data pragma definition.
	* c-pragma.h (enum pragma_kind): Add PRAGMA_OACC_HOST_DATA.
	(enum pragma_omp_clause): Add PRAGMA_OACC_CLAUSE_USE_DEVICE.

	gcc/c/
	* c-parser.c (c_parser_omp_clause_name): Add handling of use_device
	clause.
	(c_parser_oacc_clause_use_device): New function.
	(c_parser_oacc_all_clauses): Handle PRAGMA_OACC_CLAUSE_USE_DEVICE.
	(OACC_HOST_DATA_CLAUSE_MASK): New definition.
	(c_parser_oacc_host_data): New function.
        (c_parser_omp_construct): Handle PRAGMA_OACC_HOST_DATA.
	* c-tree.h: Add definition for c_finish_oacc_host_data.
	* c-typeck.c (c_finish_oacc_host_data): New function.

	gcc/cp/
	* cp-tree.h (finish_oacc_host_data): New function.
	* parser.c (cp_parser_omp_clause_name): Add handling of use_device
	clause.
	(cp_parser_oacc_all_clauses): Handle PRAGMA_OACC_CLAUSE_USE_DEVICE.
	(OACC_HOST_DATA_CLAUSE_MASK): New definition.
	(cp_parser_oacc_host_data): New function.
	(cp_parser_omp_construct): Handle PRAGMA_OACC_HOST_DATA.
	(cp_parser_pragma): Handle PRAGMA_OACC_HOST_DATA.
	* semantics.c (finish_omp_clauses): Hnadle OMP_CLAUSE_USE_DEVICE.
	(finish_oacc_host_data): New function.

	gcc/
	* gimplify.c (enum gimplify_omp_var_data): Add GOVD_USE_DEVICE.
	(enum omp_region_type): Add ORT_HOST_DATA.
	(gimplify_scan_omp_clauses): Adjust handling of OMP_CLAUSE_USE_DEVICE.
	(gimpify_host_data, gimplify_host_data_1): New functions.
	(gimplify_expr): Handle OACC_HOST_DATA.
	* omp-builtins.def (BUILT_IN_GOACC_DEVICEPTR): New builtin.

	gcc/testsuite/
	* c-c++-common/goacc/host_data-1.c: New test.
	* c-c++-common/goacc/host_data-2.c: Likewise.
	* c-c++-common/goacc/host_data-3.c: Likewise.
	* c-c++-common/goacc/host_data-4.c: Likewise.

	libgomp/
	* libgomp.map (GOACC_2.0): Add GOACC_deviceptr.
	* oacc-mem.c (GOACC_deviceptr): New function.
	* testsuite/libgomp.oacc-c-c++-common/host_data-1.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/host_data-2.c: Likewise.