Add libgomp.oacc-fortran/acc_on_device-1-4.f

Kind of undoes r15-4315-g9f549d216c9716 by adding the original testcase back;
namely, adding acc_on_device-1-3.f as acc_on_device-1-4.f with
-fno-builtin-acc_on_device removed.

libgomp/ChangeLog:

	* testsuite/libgomp.oacc-fortran/acc_on_device-1-4.f: New test;
	same as acc_on_device-1-3.f but using the builtin function.

libgomp/testsuite/libgomp.oacc-fortran/acc_on_device-1-4.f

+! { dg-do run }
+! { dg-additional-options "-cpp" }
+
+! As acc_on_device-1-3.f, but using the acc_on_device builtin.
+
+! { dg-additional-options "-fopt-info-all-omp" }
+! { dg-additional-options "--param=openacc-privatization=noisy" }
+! { dg-additional-options "-foffload=-fopt-info-all-omp" }
+! { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
+! for testing/documenting aspects of that functionality.
+
+      IMPLICIT NONE
+      INCLUDE "openacc_lib.h"
+
+!Host.
+
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_NONE)) STOP 1
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_HOST)) STOP 2
+      IF (ACC_ON_DEVICE (ACC_DEVICE_NOT_HOST)) STOP 3
+      IF (ACC_ON_DEVICE (ACC_DEVICE_NVIDIA)) STOP 4
+      IF (ACC_ON_DEVICE (ACC_DEVICE_RADEON)) STOP 4
+
+
+!Host via offloading fallback mode.
+
+!$ACC PARALLEL IF(.FALSE.)
+! { dg-note {variable 'C\.[0-9]+' declared in block potentially has improper OpenACC privatization level: 'const_decl'} "TODO" { target *-*-* } .-1 }
+!TODO Unhandled 'CONST_DECL' instances for constant arguments in 'acc_on_device' calls.
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_NONE)) STOP 5
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_HOST)) STOP 6
+      IF (ACC_ON_DEVICE (ACC_DEVICE_NOT_HOST)) STOP 7
+      IF (ACC_ON_DEVICE (ACC_DEVICE_NVIDIA)) STOP 8
+      IF (ACC_ON_DEVICE (ACC_DEVICE_RADEON)) STOP 8
+!$ACC END PARALLEL
+
+
+#if !ACC_DEVICE_TYPE_host
+
+! Offloaded.
+
+!$ACC PARALLEL
+! { dg-note {variable 'C\.[0-9]+' declared in block potentially has improper OpenACC privatization level: 'const_decl'} "TODO" { target { ! openacc_host_selected } } .-1 }
+      IF (ACC_ON_DEVICE (ACC_DEVICE_NONE)) STOP 9
+      IF (ACC_ON_DEVICE (ACC_DEVICE_HOST)) STOP 10
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_NOT_HOST)) STOP 11
+#if ACC_DEVICE_TYPE_nvidia
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_NVIDIA)) STOP 12
+#else
+      IF (ACC_ON_DEVICE (ACC_DEVICE_NVIDIA)) STOP 13
+#endif
+#if ACC_DEVICE_TYPE_radeon
+      IF (.NOT. ACC_ON_DEVICE (ACC_DEVICE_RADEON)) STOP 14
+#else
+      IF (ACC_ON_DEVICE (ACC_DEVICE_RADEON)) STOP 15
+#endif
+!$ACC END PARALLEL
+
+#endif
+
+      END