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-rw-r--r--libgomp/testsuite/libgomp.c/reduction-3.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/libgomp/testsuite/libgomp.c/reduction-3.c b/libgomp/testsuite/libgomp.c/reduction-3.c
new file mode 100644
index 000000000..4f8f2fc12
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/reduction-3.c
@@ -0,0 +1,51 @@
+#include <omp.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+ int i = 0, j = 0, k = ~0, l;
+ double d = 1.0;
+#pragma omp parallel num_threads(4)
+ {
+#pragma omp single
+ {
+ i = 16;
+ k ^= (1 << 16);
+ d += 32.0;
+ }
+
+#pragma omp for reduction(+:i) reduction(*:d) reduction(&:k) nowait
+ for (l = 0; l < 4; l++)
+ {
+ if (omp_get_num_threads () == 4 && (i != 0 || d != 1.0 || k != ~0))
+#pragma omp atomic
+ j |= 1;
+
+ if (l == omp_get_thread_num ())
+ {
+ i = omp_get_thread_num ();
+ d = i + 1;
+ k = ~(1 << (2 * i));
+ }
+ }
+
+ if (omp_get_num_threads () == 4)
+ {
+#pragma omp barrier
+ if (i != (16 + 0 + 1 + 2 + 3))
+#pragma omp atomic
+ j |= 2;
+ if (d != (33.0 * 1.0 * 2.0 * 3.0 * 4.0))
+#pragma omp atomic
+ j |= 4;
+ if (k != (~0 ^ 0x55 ^ (1 << 16)))
+#pragma omp atomic
+ j |= 8;
+ }
+ }
+
+ if (j)
+ abort ();
+ return 0;
+}