obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 145 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/slp-2.c b/gcc/testsuite/gcc.dg/vect/slp-2.c
new file mode 100644
index 000000000..69e1ed5e0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-2.c
@@ -0,0 +1,145 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128 
+
+int
+main1 (unsigned short a0, unsigned short a1, unsigned short a2, 
+       unsigned short a3, unsigned short a4, unsigned short a5,
+       unsigned short a6, unsigned short a7, unsigned short a8,
+       unsigned short a9, unsigned short a10, unsigned short a11,
+       unsigned short a12, unsigned short a13, unsigned short a14,
+       unsigned short a15)
+{
+  int i;
+  unsigned short out[N*16];
+
+  for (i = 0; i < N; i++)
+    {
+      out[i*4] = a8;
+      out[i*4 + 1] = a1;
+      out[i*4 + 2] = a2;
+      out[i*4 + 3] = a3;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*4] != a8 
+         || out[i*4 + 1] != a1
+         || out[i*4 + 2] != a2
+         || out[i*4 + 3] != a3)
+	abort ();
+    }
+
+  for (i = 0; i < N; i++)
+    {
+      out[i*16] = a8;
+      out[i*16 + 1] = a7;
+      out[i*16 + 2] = a1;
+      out[i*16 + 3] = a2;
+      out[i*16 + 4] = a8;
+      out[i*16 + 5] = a5;
+      out[i*16 + 6] = a5;
+      out[i*16 + 7] = a4;
+      out[i*16 + 8] = a12;
+      out[i*16 + 9] = a13;
+      out[i*16 + 10] = a14;
+      out[i*16 + 11] = a15;
+      out[i*16 + 12] = a6;
+      out[i*16 + 13] = a9;
+      out[i*16 + 14] = a0;
+      out[i*16 + 15] = a7;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*16] != a8
+          || out[i*16 + 1] != a7
+          || out[i*16 + 2] != a1
+          || out[i*16 + 3] != a2
+          || out[i*16 + 4] != a8
+          || out[i*16 + 5] != a5
+          || out[i*16 + 6] != a5
+          || out[i*16 + 7] != a4
+          || out[i*16 + 8] != a12
+          || out[i*16 + 9] != a13
+          || out[i*16 + 10] != a14
+          || out[i*16 + 11] != a15
+          || out[i*16 + 12] != a6
+          || out[i*16 + 13] != a9
+          || out[i*16 + 14] != a0
+          || out[i*16 + 15] != a7)
+        abort ();
+    }
+
+  /* SLP with unrolling by 8.  */
+  for (i = 0; i < N; i++)
+    {
+      out[i*3] = a8;
+      out[i*3 + 1] = a1;
+      out[i*3 + 2] = a2;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*3] != a8
+         || out[i*3 + 1] != a1
+         || out[i*3 + 2] != a2)
+        abort ();
+    }
+
+  /* SLP with unrolling by 8.  */
+  for (i = 0; i < N; i++)
+    {
+      out[i*11] = a8;
+      out[i*11 + 1] = a7;
+      out[i*11 + 2] = a1;
+      out[i*11 + 3] = a2;
+      out[i*11 + 4] = a8;
+      out[i*11 + 5] = a5;
+      out[i*11 + 6] = a5;
+      out[i*11 + 7] = a4;
+      out[i*11 + 8] = a12;
+      out[i*11 + 9] = a13;
+      out[i*11 + 10] = a14;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*11] != a8
+          || out[i*11 + 1] != a7
+          || out[i*11 + 2] != a1
+          || out[i*11 + 3] != a2
+          || out[i*11 + 4] != a8
+          || out[i*11 + 5] != a5
+          || out[i*11 + 6] != a5
+          || out[i*11 + 7] != a4
+          || out[i*11 + 8] != a12
+          || out[i*11 + 9] != a13
+          || out[i*11 + 10] != a14)
+        abort ();
+    }
+
+
+  return 0;
+}
+
+int main (void)
+{
+  check_vect ();
+
+  main1 (15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect"  } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 4 "vect"  } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+