1 files changed, 126 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/slp-cond-1.c b/gcc/testsuite/gcc.dg/vect/slp-cond-1.c
new file mode 100644
index 00000000000..4b8e3d3b6a3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-cond-1.c
@@ -0,0 +1,126 @@
+/* { dg-require-effective-target vect_condition } */
+#include "tree-vect.h"
+
+#define N 32
+int a[N], b[N];
+int d[N], e[N];
+int k[N];
+
+__attribute__((noinline, noclone)) void
+f1 (void)
+{
+  int i;
+  for (i = 0; i < N/4; i++)
+    {
+      k[4*i] = a[4*i] < b[4*i] ? 17 : 0;
+      k[4*i+1] = a[4*i+1] < b[4*i+1] ? 17 : 0;
+      k[4*i+2] = a[4*i+2] < b[4*i+2] ? 17 : 0;
+      k[4*i+3] = a[4*i+3] < b[4*i+3] ? 17 : 0;
+    }
+}
+
+__attribute__((noinline, noclone)) void
+f2 (void)
+{
+  int i;
+  for (i = 0; i < N/2; ++i)
+    {
+      k[2*i] = a[2*i] < b[2*i] ? 0 : 24;
+      k[2*i+1] = a[2*i+1] < b[2*i+1] ? 7 : 4;
+    }
+}
+
+__attribute__((noinline, noclone)) void
+f3 (void)
+{
+  int i;
+  for (i = 0; i < N/2; ++i)
+    {
+      k[2*i] = a[2*i] < b[2*i] ? 51 : 12;
+      k[2*i+1] = a[2*i+1] > b[2*i+1] ? 51 : 12;
+    }
+}
+
+__attribute__((noinline, noclone)) void
+f4 (void)
+{
+  int i;
+  for (i = 0; i < N/2; ++i)
+    {
+      int d0 = d[2*i], e0 = e[2*i];
+      int d1 = d[2*i+1], e1 = e[2*i+1];
+      k[2*i] = a[2*i] >= b[2*i] ? d0 : e0;
+      k[2*i+1] = a[2*i+1] >= b[2*i+1] ? d1 : e1;
+    }
+}
+
+int
+main ()
+{
+  int i;
+
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    {
+      switch (i % 9)
+	{
+	case 0: asm (""); a[i] = - i - 1; b[i] = i + 1; break;
+	case 1: a[i] = 0; b[i] = 0; break;
+	case 2: a[i] = i + 1; b[i] = - i - 1; break;
+	case 3: a[i] = i; b[i] = i + 7; break;
+	case 4: a[i] = i; b[i] = i; break;
+	case 5: a[i] = i + 16; b[i] = i + 3; break;
+	case 6: a[i] = - i - 5; b[i] = - i; break;
+	case 7: a[i] = - i; b[i] = - i; break;
+	case 8: a[i] = - i; b[i] = - i - 7; break;
+	}
+      d[i] = i;
+      e[i] = 2 * i;
+    }
+  f1 ();
+  for (i = 0; i < N; i++)
+    if (k[i] != ((i % 3) == 0 ? 17 : 0))
+      abort ();
+
+  f2 ();
+  for (i = 0; i < N; i++)
+    {
+      switch (i % 9)
+        {
+        case 0:
+	case 6:
+	  if (k[i] != ((i/9 % 2) == 0 ? 0 : 7))
+	    abort ();
+	  break;
+        case 1:
+        case 5:
+        case 7:
+	  if (k[i] != ((i/9 % 2) == 0 ? 4 : 24))
+            abort ();
+          break;
+        case 2:
+        case 4:
+        case 8:
+	  if (k[i] != ((i/9 % 2) == 0 ? 24 : 4))
+            abort ();
+          break;
+        case 3:
+	  if (k[i] != ((i/9 % 2) == 0 ? 7 : 0))
+            abort ();
+          break;
+        }
+    }
+
+  f3 ();
+
+  f4 ();
+  for (i = 0; i < N; i++)
+    if (k[i] != ((i % 3) == 0 ? e[i] : d[i]))
+      abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 3 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */