aboutsummaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/autopar/outer-6.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/testsuite/gcc.dg/autopar/outer-6.c')
-rw-r--r--gcc/testsuite/gcc.dg/autopar/outer-6.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/autopar/outer-6.c b/gcc/testsuite/gcc.dg/autopar/outer-6.c
new file mode 100644
index 00000000000..6e027d2f69a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/autopar/outer-6.c
@@ -0,0 +1,51 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */
+
+void abort (void);
+
+int x[500][500];
+int y[500];
+int g_sum=0;
+
+__attribute__((noinline))
+void init (int i, int j)
+{
+ x[i][j]=1;
+}
+
+__attribute__((noinline))
+void parloop (int N)
+{
+ int i, j;
+ int sum;
+
+ /* Outer loop reduction, outerloop is parallelized. */
+ sum=0;
+ for (i = 0; i < N; i++)
+ {
+ for (j = 0; j < N; j++)
+ y[i]=x[i][j];
+ sum += y[i];
+ }
+ g_sum = sum;
+}
+
+int main(void)
+{
+ int i,j;
+ for (i = 0; i < 500; i++)
+ for (j = 0; j < 500; j++)
+ init(i, j);
+
+ parloop(500);
+
+ return 0;
+}
+
+
+/* Check that outer loop is parallelized. */
+/* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" } } */
+/* { dg-final { scan-tree-dump-times "parallelizing inner loop" 0 "parloops" } } */
+/* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "parloops" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */