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, 78 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/no-tree-pre-slp-29.c b/gcc/testsuite/gcc.dg/vect/no-tree-pre-slp-29.c
new file mode 100644
index 000000000..e370ef307
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/no-tree-pre-slp-29.c
@@ -0,0 +1,78 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 8 
+
+unsigned short in2[N*8] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
+
+int
+main1 (unsigned short *in)
+{
+  int i;
+  unsigned short out[N*8];
+
+  for (i = 0; i < N; i++)
+    {
+      out[i*4] = in[i*4];
+      out[i*4 + 1] = in[i*4 + 1];
+      out[i*4 + 2] = in[i*4 + 2];
+      out[i*4 + 3] = in[i*4 + 3];
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*4] !=  in[i*4]
+         || out[i*4 + 1] != in[i*4 + 1]
+         || out[i*4 + 2] != in[i*4 + 2]
+         || out[i*4 + 3] != in[i*4 + 3])
+        abort ();
+    }
+
+  return 0;
+}
+
+int
+main2 (unsigned short * __restrict__ in, unsigned short * __restrict__ out)
+{
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      out[i*4] = in[i*4];
+      out[i*4 + 1] = in[i*4 + 1];
+      out[i*4 + 2] = in[i*4 + 2];
+      out[i*4 + 3] = in[i*4 + 3];
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*4] !=  in[i*4]
+         || out[i*4 + 1] != in[i*4 + 1]
+         || out[i*4 + 2] != in[i*4 + 2]
+         || out[i*4 + 3] != in[i*4 + 3])
+        abort ();
+    }
+
+  return 0;
+}
+
+int main (void)
+{
+  unsigned short out[N*8];
+
+  check_vect ();
+
+  main1 (&in2[5]);
+  main2 (&in2[3], &out[3]);
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect"  } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+