libgomp: Add tests for omp_atv_serialized and deprecate omp_atv_sequential.

The variable omp_atv_sequential was replaced by omp_atv_serialized in OpenMP
5.1. This was already implemented by Jakub (C/C++, commit ea82325afec) and
Tobias (Fortran, commit fff15bad1ab).

This patch adds two tests to check if omp_atv_serialized is available (one test
for C/C++ and one for Fortran). Besides that omp_atv_sequential is marked as
deprecated in C/C++ and Fortran for OpenMP 5.1.

libgomp/ChangeLog:

	* allocator.c (omp_init_allocator): Replace omp_atv_sequential with
	omp_atv_serialized.
	* omp.h.in: Add deprecated flag for omp_atv_sequential.
	* omp_lib.f90.in: Add deprecated flag for omp_atv_sequential.
	* testsuite/libgomp.c-c++-common/alloc-10.c: New test.
	* testsuite/libgomp.fortran/alloc-12.f90: New test.

1 files changed, 25 insertions, 0 deletions

diff --git a/libgomp/testsuite/libgomp.c-c++-common/alloc-10.c b/libgomp/testsuite/libgomp.c-c++-common/alloc-10.c
new file mode 100644
index 0000000..01ae150d
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c-c++-common/alloc-10.c
@@ -0,0 +1,25 @@
+#include <omp.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+const omp_alloctrait_t traits[]
+= { { omp_atk_alignment, 64 },
+    { omp_atk_sync_hint, omp_atv_serialized },
+    { omp_atk_fallback, omp_atv_null_fb } };
+
+int
+main ()
+{
+  omp_allocator_handle_t a;
+  int *volatile p;
+  a = omp_init_allocator (omp_default_mem_space, 3, traits);
+  if (a == omp_null_allocator)
+    abort ();
+  p = (int *) omp_alloc (3072, a);
+  if ((((uintptr_t) p) % 64) != 0)
+    abort ();
+  p[0] = 1;
+  p[3071 / sizeof (int)] = 2;
+  omp_free (p, a);
+  omp_destroy_allocator (a);
+}