Imported gcc-4.4.3

[msp430-gcc.git] / libgomp / testsuite / libgomp.c / appendix-a / a.19.1.c

diff --git a/libgomp/testsuite/libgomp.c/appendix-a/a.19.1.c b/libgomp/testsuite/libgomp.c/appendix-a/a.19.1.c
new file mode 100644 (file)
index 0000000..65ffe62
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/appendix-a/a.19.1.c
@@ -0,0 +1,55 @@
+/* { dg-do run } */
+
+int x, *p = &x;
+extern void abort (void);
+void
+f1 (int *q)
+{
+  *q = 1;
+#pragma omp flush
+  /* x, p, and *q are flushed */
+  /* because they are shared and accessible */
+  /* q is not flushed because it is not shared. */
+}
+
+void
+f2 (int *q)
+{
+#pragma omp barrier
+  *q = 2;
+#pragma omp barrier
+  /*  a barrier implies a flush */
+  /*  x, p, and *q are flushed */
+  /*  because they are shared and accessible */
+  /*  q is not flushed because it is not shared. */
+}
+
+int
+g (int n)
+{
+  int i = 1, j, sum = 0;
+  *p = 1;
+#pragma omp parallel reduction(+: sum) num_threads(2)
+  {
+    f1 (&j);
+    /* i, n and sum were not flushed */
+    /* because they were not accessible in f1 */
+    /* j was flushed because it was accessible */
+    sum += j;
+    f2 (&j);
+    /* i, n, and sum were not flushed */
+    /* because they were not accessible in f2 */
+    /* j was flushed because it was accessible */
+    sum += i + j + *p + n;
+  }
+  return sum;
+}
+
+int
+main ()
+{
+  int result = g (10);
+  if (result != 30)
+    abort ();
+  return 0;
+}