global variable test

Author: scchan

global_var/global_var_simple.cpp

@@ -0,0 +1,38 @@
+#include <cstdio>
+#include <hc.hpp>
+
+//#define GLOBAL_VAR_BUG 1
+
+#ifdef GLOBAL_VAR_BUG
+__attribute__((hc)) int foo[1] = { 1234 };
+#else
+__attribute__((address_space(1))) int foo[1] = { 1234 };
+#endif
+
+#define N 1
+
+template<typename T>
+int test_global_var() {
+  hc::array_view<T,1> a0(N);
+  hc::parallel_for_each(a0.get_extent(),[=] (hc::index<1> i) [[hc]] {
+    if (i[0] == 0) {
+      foo[i[0]]++;
+      a0[i] = (T)foo[i[0]];
+    }
+  }).wait();
+  return (int)a0[0];
+}
+
+
+int main() {
+  int n0 = test_global_var<float>();
+  int n1 = test_global_var<double>();
+
+  int errors = 0;
+  if (n0!=1235)
+    errors++;
+  if (n1!=1236)
+    errors++;
+
+  return errors;
+}