2009-10-24 Basile Starynkevitch <basile@starynkevitch.net>

	MELT branch merged with trunk rev 153531




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@153533 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 37 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/autopar/outer-4.c b/gcc/testsuite/gcc.dg/autopar/outer-4.c
new file mode 100644
index 00000000000..56f6123385d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/autopar/outer-4.c
@@ -0,0 +1,37 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */
+
+void abort (void);
+
+int g_sum=0;
+int x[500][500];
+
+__attribute__((noinline))
+void parloop (int N)
+{
+  int i, j;
+  int sum;
+
+  /* Double reduction is currently not supported, outer loop is not 
+     parallelized.  Inner reduction is detected, inner loop is 
+     parallelized.  */
+  sum = 0;
+  for (i = 0; i < N; i++)
+    for (j = 0; j < N; j++)
+      sum += x[i][j];
+
+  g_sum = sum;
+}
+
+int main(void)
+{
+  parloop(500);
+
+  return 0;
+}
+
+
+/* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" { xfail *-*-* } } } */
+/* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "parloops" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */