target.c (struct gomp_coalesce_buf): New type.

	* target.c (struct gomp_coalesce_buf): New type.
	(MAX_COALESCE_BUF_SIZE, MAX_COALESCE_BUF_GAP): Define.
	(gomp_coalesce_buf_add, gomp_to_device_kind_p): New functions.
	(gomp_copy_host2dev): Add CBUF argument, if copying into
	the cached ranges, memcpy into buffer instead of copying
	into device.
	(gomp_map_vars_existing, gomp_map_pointer, gomp_map_fields_existing):
	Add CBUF argument, pass it through to other calls.
	(gomp_map_vars): Aggregate copies from host to device if small enough
	and with small enough gaps in between into memcpy into a buffer and
	fewer host to device copies from the buffer.
	(gomp_update): Adjust gomp_copy_host2dev caller.

From-SVN: r254194

libgomp/ChangeLog

+2017-10-28  Jakub Jelinek  <jakub@redhat.com>
+
+	* target.c (struct gomp_coalesce_buf): New type.
+	(MAX_COALESCE_BUF_SIZE, MAX_COALESCE_BUF_GAP): Define.
+	(gomp_coalesce_buf_add, gomp_to_device_kind_p): New functions.
+	(gomp_copy_host2dev): Add CBUF argument, if copying into
+	the cached ranges, memcpy into buffer instead of copying
+	into device.
+	(gomp_map_vars_existing, gomp_map_pointer, gomp_map_fields_existing):
+	Add CBUF argument, pass it through to other calls.
+	(gomp_map_vars): Aggregate copies from host to device if small enough
+	and with small enough gaps in between into memcpy into a buffer and
+	fewer host to device copies from the buffer.
+	(gomp_update): Adjust gomp_copy_host2dev caller.
+
 2017-10-17  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* testsuite/libgomp.oacc-fortran/declare-1.f90: Restore "dg-do