1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/slp-reduc-8.c b/gcc/testsuite/gcc.dg/vect/slp-reduc-8.c
new file mode 100644
index 00000000000..618c800e577
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-reduc-8.c
@@ -0,0 +1,48 @@
+/* { dg-require-effective-target vect_int } */
+
+#include "tree-vect.h"
+
+static int a[512], b[512];
+
+void __attribute__((noinline,noclone))
+foo (int *sum1p, int *sum2p, int *sum3p)
+{
+  int sum1 = 0;
+  int sum2 = 0;
+  int sum3 = 0;
+  /* Check that we vectorize a reduction chain and a SLP reduction
+     at the same time.  */
+  for (int i = 0; i < 256; ++i)
+    {
+      sum1 += a[2*i];
+      sum1 += a[2*i + 1];
+      sum2 += b[2*i];
+      sum3 += b[2*i + 1];
+    }
+  *sum1p = sum1;
+  *sum2p = sum2;
+  *sum3p = sum3;
+}
+
+int main()
+{
+  check_vect ();
+
+  for (int i = 0; i < 256; ++i)
+    {
+      a[2*i] = i;
+      a[2*i + 1] = i/2;
+      b[2*i] = i + 1;
+      b[2*i + 1] = i/2 + 1;
+      __asm__ volatile ("" : : : "memory");
+    }
+  int sum1, sum2, sum3;
+  foo (&sum1, &sum2, &sum3);
+  if (sum1 != 48896 || sum2 != 32896 || sum3 != 16512)
+    abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump "Loop contains only SLP stmts" "vect" } } */
+/* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */