OpenMP, libgomp: Add new runtime routine omp_get_mapped_ptr.

This patch adds the OpenMP runtime routine "omp_get_mapped_ptr" which was
introduced in OpenMP 5.1.

gcc/ChangeLog:

	* omp-low.cc (omp_runtime_api_call): Added get_mapped_ptr to
	omp_runtime_apis array.

libgomp/ChangeLog:

	* libgomp.map: Added omp_get_mapped_ptr.
	* libgomp.texi: Tagged omp_get_mapped_ptr as supported.
	* omp.h.in: Added omp_get_mapped_ptr.
	* omp_lib.f90.in: Added interface for omp_get_mapped_ptr.
	* omp_lib.h.in: Likewise.
	* target.c (omp_get_mapped_ptr): Added implementation of
	omp_get_mapped_ptr.
	* testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c: New test.
	* testsuite/libgomp.c-c++-common/get-mapped-ptr-2.c: New test.
	* testsuite/libgomp.c-c++-common/get-mapped-ptr-3.c: New test.
	* testsuite/libgomp.c-c++-common/get-mapped-ptr-4.c: New test.
	* testsuite/libgomp.fortran/get-mapped-ptr-1.f90: New test.
	* testsuite/libgomp.fortran/get-mapped-ptr-2.f90: New test.
	* testsuite/libgomp.fortran/get-mapped-ptr-3.f90: New test.
	* testsuite/libgomp.fortran/get-mapped-ptr-4.f90: New test.

1 files changed, 41 insertions, 0 deletions

diff --git a/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c b/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c
new file mode 100644
index 0000000..97a60ca
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c
@@ -0,0 +1,41 @@
+#include <omp.h>
+#include <stdlib.h>
+
+int
+main ()
+{
+  int d = omp_get_default_device ();
+  int id = omp_get_initial_device ();
+  void *p , *q;
+
+  if (d < 0 || d >= omp_get_num_devices ())
+    d = id;
+
+  p = omp_target_alloc (sizeof (int), d);
+  if (p == NULL)
+    return 0;
+
+  if (omp_target_associate_ptr (q, p, sizeof (int), 0, d) != 0)
+    return 0;
+
+  if (omp_get_mapped_ptr (q, -1) != NULL)
+    abort ();
+
+  if (omp_get_mapped_ptr (q, omp_get_num_devices () + 1) != NULL)
+    abort ();
+
+  if (omp_get_mapped_ptr (q, id) != q)
+    abort ();
+
+  if (omp_get_mapped_ptr (q, d) != p)
+    abort ();
+
+  if (omp_target_disassociate_ptr (q, d) != 0)
+    abort ();
+
+  if (omp_get_mapped_ptr (q, d) != NULL)
+    abort ();
+
+  omp_target_free (p, d);
+  return 0;
+}