Imported gcc-4.4.3

[msp430-gcc.git] / libgomp / testsuite / libgomp.c / atomic-3.c

diff --git a/libgomp/testsuite/libgomp.c/atomic-3.c b/libgomp/testsuite/libgomp.c/atomic-3.c
new file mode 100644 (file)
index 0000000..5b8fdc1
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/atomic-3.c
@@ -0,0 +1,50 @@
+/* { dg-do run } */
+/* { dg-options "-fopenmp -O0" } */
+
+#include <omp.h>
+#include <stdlib.h>
+
+short e[64];
+int g;
+_Complex double d, f;
+int num_threads;
+
+__attribute__((noinline)) void
+foo (int x, long long y)
+{
+#pragma omp parallel num_threads (4)
+  {
+    int i;
+    #pragma omp barrier
+    for (i = 0; i < 2400; i++)
+      {
+       if (i == 0)
+         num_threads = omp_get_num_threads ();
+       #pragma omp atomic
+         e[0] += x;
+       #pragma omp atomic
+         e[16] += x;
+       #pragma omp atomic
+         g += y;
+       #pragma omp atomic
+         __real__ d += x;
+       #pragma omp atomic
+         __imag__ f += x;
+      }
+  }
+}
+
+int
+main (void)
+{
+  int i;
+  foo (3, 3LL);
+  if (g != 3 * 2400 * num_threads
+      || __real__ d != g || __imag__ d != 0
+      || __real__ f != 0 || __imag__ f != g)
+    abort ();
+  for (i = 0; i < 64; i++)
+    if (e[i] != ((i && i != 16) ? 0 : g))
+      abort ();
+  return 0;
+}