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Diffstat (limited to 'gcc-4.2.1-5666.3/libgomp/testsuite/libgomp.c/appendix-a/a.16.1.c')
-rw-r--r--gcc-4.2.1-5666.3/libgomp/testsuite/libgomp.c/appendix-a/a.16.1.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/libgomp/testsuite/libgomp.c/appendix-a/a.16.1.c b/gcc-4.2.1-5666.3/libgomp/testsuite/libgomp.c/appendix-a/a.16.1.c
new file mode 100644
index 000000000..28a994a28
--- /dev/null
+++ b/gcc-4.2.1-5666.3/libgomp/testsuite/libgomp.c/appendix-a/a.16.1.c
@@ -0,0 +1,47 @@
+/* { dg-do run } */
+
+#include <stdio.h>
+
+float
+work1 (int i)
+{
+ return 1.0 * i;
+}
+
+float
+work2 (int i)
+{
+ return 2.0 * i;
+}
+
+void
+a16 (float *x, float *y, int *index, int n)
+{
+ int i;
+#pragma omp parallel for shared(x, y, index, n)
+ for (i = 0; i < n; i++)
+ {
+#pragma omp atomic
+ x[index[i]] += work1 (i);
+ y[i] += work2 (i);
+ }
+}
+int
+main ()
+{
+ float x[1000];
+ float y[10000];
+ int index[10000];
+ int i;
+ for (i = 0; i < 10000; i++)
+ {
+ index[i] = i % 1000;
+ y[i] = 0.0;
+ }
+ for (i = 0; i < 1000; i++)
+ x[i] = 0.0;
+ a16 (x, y, index, 10000);
+ for (i = 0; i < 10; i++)
+ printf ("x[%d] = %f, y[%d] = %f\n", i, x[i], i, y[i]);
+ return 0;
+}