Fix libgomp plugin-gcn bug

2020-01-23  Andrew Stubbs  <ams@codesourcery.com>

	libgomp/
	* plugin/plugin-gcn.c (parse_target_attributes): Use correct mask for
	the device id.

libgomp/ChangeLog

+2020-01-23  Andrew Stubbs  <ams@codesourcery.com>
+
+	* plugin/plugin-gcn.c (parse_target_attributes): Use correct mask for
+	the device id.
+
 2020-01-20  Andrew Stubbs  <ams@codesourcery.com>
 
 	* testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Skip test on gcn.

libgomp/plugin/plugin-gcn.c

@@ -1228,7 +1228,8 @@ parse_target_attributes (void **input,
 	  grid_attrs_found = true;
 	  break;
 	}
-      else if ((id & GOMP_TARGET_ARG_DEVICE_ALL) == GOMP_TARGET_ARG_DEVICE_ALL)
+      else if ((id & GOMP_TARGET_ARG_DEVICE_MASK)
+	       == GOMP_TARGET_ARG_DEVICE_ALL)
 	{
 	  gcn_dims_found = true;
 	  switch (id & GOMP_TARGET_ARG_ID_MASK)