Add 'libgomp.c/alloc-ompx_host_mem_alloc-1.c'

OpenMP 'ompx_host_mem_alloc' is available for host and nvptx offloading as of
og12 commit 84914e197d91a67b3d27db0e4c69a433462983a5
"openmp, nvptx: ompx_unified_shared_mem_alloc", and for GCN offloading as of
og12 commit c77c45a641fedc3fe770e909cc010fb1735bdbbd
"amdgcn, libgomp: low-latency allocator".

	libgomp/
	* testsuite/libgomp.c/alloc-ompx_host_mem_alloc-1.c: New.

2 files changed, 79 insertions, 0 deletions

diff --git a/libgomp/ChangeLog.omp b/libgomp/ChangeLog.omp
index ef957e3d2d8..6b816e46cd2 100644
--- a/libgomp/ChangeLog.omp
+++ b/libgomp/ChangeLog.omp
@@ -1,5 +1,7 @@
 2023-03-24  Thomas Schwinge  <thomas@codesourcery.com>
 
+	* testsuite/libgomp.c/alloc-ompx_host_mem_alloc-1.c: New.
+
 	* config/gcn/allocator.c (gcn_memspace_free): Explicitly handle
 	'memspace == ompx_host_mem_space'.
 
diff --git a/libgomp/testsuite/libgomp.c/alloc-ompx_host_mem_alloc-1.c b/libgomp/testsuite/libgomp.c/alloc-ompx_host_mem_alloc-1.c
new file mode 100644
index 00000000000..683b7aff3d4
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/alloc-ompx_host_mem_alloc-1.c
@@ -0,0 +1,77 @@
+/* Verify that on the host we can but on a device we cannot allocate 'ompx_host_mem_alloc' memory.  */
+
+/* { dg-additional-options -DOFFLOAD_DEVICE { target offload_device } } */
+
+#include <omp.h>
+
+#pragma omp requires dynamic_allocators
+
+int main()
+{
+#pragma omp target
+  {
+    char *c, *c_;
+
+    c = omp_alloc(1, ompx_host_mem_alloc);
+#ifdef OFFLOAD_DEVICE
+    if (c)
+      __builtin_abort ();
+#else
+    if (!c)
+      __builtin_abort ();
+#endif
+    omp_free(c, ompx_host_mem_alloc);
+
+    c = omp_aligned_alloc(128, 256, ompx_host_mem_alloc);
+#ifdef OFFLOAD_DEVICE
+    if (c)
+      __builtin_abort ();
+#else
+    if (!c)
+      __builtin_abort ();
+#endif
+    omp_free(c, omp_null_allocator);
+
+    c = omp_calloc(1, 1, ompx_host_mem_alloc);
+#ifdef OFFLOAD_DEVICE
+    if (c)
+      __builtin_abort ();
+#else
+    if (!c)
+      __builtin_abort ();
+#endif
+    c_ = omp_realloc(c, 2, ompx_host_mem_alloc, ompx_host_mem_alloc);
+#ifdef OFFLOAD_DEVICE
+    if (c_)
+      __builtin_abort ();
+#else
+    if (!c_)
+      __builtin_abort ();
+#endif
+    c = omp_realloc(c_, 0, ompx_host_mem_alloc, ompx_host_mem_alloc);
+    if (c)
+      __builtin_abort ();
+
+    c = omp_aligned_calloc(64, 1, 512, ompx_host_mem_alloc);
+#ifdef OFFLOAD_DEVICE
+    if (c)
+      __builtin_abort ();
+#else
+    if (!c)
+      __builtin_abort ();
+#endif
+    c_ = omp_realloc(c, 2, c ? omp_null_allocator : ompx_host_mem_alloc, omp_null_allocator);
+#ifdef OFFLOAD_DEVICE
+    if (c_)
+      __builtin_abort ();
+#else
+    if (!c_)
+      __builtin_abort ();
+#endif
+    c = omp_realloc(c_, 0, omp_null_allocator, omp_null_allocator);
+    if (c)
+      __builtin_abort ();
+  }
+
+  return 0;
+}