Add test case

Introduce a test case which fails before this commit
and passes afterwards. Based on #49

sycl/test/graph/graph-record-temp-scope.cpp

@@ -0,0 +1,62 @@
+// RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple %s -o %t.out
+
+#include <iostream>
+#include <sycl/sycl.hpp>
+
+#include <sycl/ext/oneapi/experimental/graph.hpp>
+
+const size_t n = 10;
+const float expectedValue = 42.0f;
+
+void run_some_kernel(sycl::queue q, float* data){
+  // data is captured by ref here but will have gone out of scope when the
+  // CGF is later run when the graph is executed.
+  q.submit([&](sycl::handler &h) {
+    h.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> idx) {
+      size_t i = idx;
+      data[i] = expectedValue;
+    });
+  });
+}
+
+int main() {
+
+  sycl::property_list properties{
+      sycl::property::queue::in_order(),
+      sycl::ext::oneapi::property::queue::lazy_execution{}};
+
+  sycl::queue q{sycl::default_selector_v, properties};
+
+  sycl::ext::oneapi::experimental::command_graph g;
+
+  float *arr = sycl::malloc_shared<float>(n, q);
+
+  g.begin_recording(q);
+  run_some_kernel(q, arr);
+  g.end_recording(q);
+
+  auto exec_graph = g.finalize(q.get_context());
+
+  q.submit([&](sycl::handler &h) { h.ext_oneapi_graph(exec_graph); });
+
+  int errors = 0;
+  // Verify results
+  for (size_t i = 0; i < n; i++) {
+    if (arr[i] != expectedValue) {
+      std::cout << "Test failed: Unexpected result at index: " << i
+                << ", expected: " << expectedValue << " actual: " << arr[i]
+                << "\n";
+      errors++;
+    }
+  }
+
+  if (errors == 0) {
+    std::cout << "Test passed successfuly.\n";
+  }
+
+  std::cout << "done.\n";
+
+  sycl::free(arr, q.get_context());
+
+  return errors;
+}