Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 118 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr51581-3.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr51581-3.c
new file mode 100644
index 000000000..a47813617
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr51581-3.c
@@ -0,0 +1,118 @@
+/* PR tree-optimization/51581 */
+
+#include "tree-vect.h"
+
+int a[8], b[8];
+unsigned int c[8], d[8];
+
+void
+f1 (void)
+{
+  a[0] = b[0] / 8;
+  a[1] = b[1] / 8;
+  a[2] = b[2] / 8;
+  a[3] = b[3] / 8;
+  a[4] = b[4] / 8;
+  a[5] = b[5] / 8;
+  a[6] = b[6] / 8;
+  a[7] = b[7] / 8;
+}
+
+void
+f2 (void)
+{
+  c[0] = d[0] / 3;
+  c[1] = d[1] / 3;
+  c[2] = d[2] / 3;
+  c[3] = d[3] / 3;
+  c[4] = d[4] / 3;
+  c[5] = d[5] / 3;
+  c[6] = d[6] / 3;
+  c[7] = d[7] / 3;
+}
+
+void
+f3 (void)
+{
+  a[0] = b[0] / 8;
+  a[1] = b[1] / 4;
+  a[2] = b[2] / 8;
+  a[3] = b[3] / 4;
+  a[4] = b[4] / 8;
+  a[5] = b[5] / 4;
+  a[6] = b[6] / 8;
+  a[7] = b[7] / 4;
+}
+
+void
+f4 (void)
+{
+  c[0] = d[0] / 3;
+  c[1] = d[1] / 5;
+  c[2] = d[2] / 3;
+  c[3] = d[3] / 5;
+  c[4] = d[4] / 3;
+  c[5] = d[5] / 5;
+  c[6] = d[6] / 3;
+  c[7] = d[7] / 5;
+}
+
+void
+f5 (void)
+{
+  a[0] = b[0] / 14;
+  a[1] = b[1] / 15;
+  a[2] = b[2] / 14;
+  a[3] = b[3] / 15;
+  a[4] = b[4] / 14;
+  a[5] = b[5] / 15;
+  a[6] = b[6] / 14;
+  a[7] = b[7] / 15;
+}
+
+void
+f6 (void)
+{
+  c[0] = d[0] / 6;
+  c[1] = d[1] / 5;
+  c[2] = d[2] / 6;
+  c[3] = d[3] / 5;
+  c[4] = d[4] / 6;
+  c[5] = d[5] / 5;
+  c[6] = d[6] / 13;
+  c[7] = d[7] / 5;
+}
+
+int
+main ()
+{
+  int i;
+  check_vect ();
+  asm ("");
+  for (i = 0; i < 8; i++)
+    {
+      asm ("");
+      b[i] = i - 4;
+      d[i] = i - 4;
+    }
+  f1 ();
+  f2 ();
+  for (i = 0; i < 8; i++)
+    if (a[i] != b[i] / 8 || c[i] != d[i] / 3)
+      abort ();
+  f3 ();
+  f4 ();
+  for (i = 0; i < 8; i+= 2)
+    if (a[i] != b[i] / 8 || a[i + 1] != b[i + 1] / 4
+	|| c[i] != d[i] / 3 || c[i + 1] != d[i + 1] / 5)
+      abort ();
+  f5 ();
+  f6 ();
+  for (i = 0; i < 8; i+= 2)
+    if (a[i] != b[i] / 14 || a[i + 1] != b[i + 1] / 15
+	|| c[i] != d[i] / (i == 6 ? 13 : 6) || c[i + 1] != d[i + 1] / 5)
+      abort ();
+  return 0;
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */