[HIP] Add test with_fopenmp.hip

[yaxunl]

Summary

Add a test to test-suite for testing std::isnan in host and device functions
when compiled with -fopenmp.

[ashi1]

LGTM!

External/HIP/CMakeLists.txt

 include(External)
 include(GPUTestVariant)
 llvm_externals_find(TEST_SUITE_HIP_ROOT "hip" "HIP prerequisites")
 
 # Create targets for HIP tests that are part of the test suite.
 macro(create_local_hip_tests VariantSuffix)
   set(VariantOffload "hip")
+  # Set per-source compilation/link options
+  set_source_files_properties(with_fopenmp.hip PROPERTIES
+    COMPILE_FLAGS -fopenmp)
   # Add HIP tests to be added to hip-tests-simple
   list(APPEND HIP_LOCAL_TESTS empty)
+  list(APPEND HIP_LOCAL_TESTS with_fopenmp)
   list(APPEND HIP_LOCAL_TESTS saxpy)
   foreach(_hip_test IN LISTS HIP_LOCAL_TESTS)
     create_one_local_test(${_hip_test} ${_hip_test}.hip
                           ${VariantOffload} ${VariantSuffix}
                           "${VariantCPPFLAGS}" "${VariantLibs}")
   endforeach()
 endmacro()
 

External/HIP/with-fopenmp.hip

+#include <hip/hip_runtime.h>
+#include <cmath>
+
+// Test use of std::isnan in device and host code.
+
+namespace TestIsNan {
+__device__ bool DevPass = false;
+
+__global__ void kernel() {
+  double X = 1.0;
+  DevPass = !std::isnan(X);
+}
+
+bool test() {
+  double X = 1.0;
+  kernel<<<1, 1>>>();
+  bool Pass;
+  hipMemcpyFromSymbol(&Pass, DevPass, sizeof(DevPass));
+  return Pass & !std::isnan(X);
+}
+}
+
+int main() {
+  bool Pass = TestIsNan::test();
+
+  if (!Pass) {
+    printf("FAILED!\n");
+    return 1;
+  }
+
+  printf("PASSED!\n");
+  return 0;
+}

External/HIP/with-fopenmp.reference_output

+PASSED!
+exit 0