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, 64 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect-double-reduc-7.c b/gcc/testsuite/gcc.dg/vect/vect-double-reduc-7.c
new file mode 100644
index 000000000..34a6f600e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-double-reduc-7.c
@@ -0,0 +1,64 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define K 32
+
+int in[2*K][K] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+int out[K];
+int check_result[K] = {63,63,191,191,127,127,191,191,127,127,191,191,127,127,191,191,127,127,191,191,127,127,191,191,127,127,191,191,127,127,191,191};
+
+__attribute__ ((noinline)) void 
+foo ()
+{
+  int res_or, res_and, res_xor, i, j, k;
+
+  for (k = 0; k < K; k++)
+    {
+      res_or = 0;
+      for (j = 0; j < K; j++) 
+        for (i = 0; i < K; i++) 
+          res_or = res_or | in[i+k][j];
+ 
+      res_and = 1;
+      for (j = 0; j < K; j++)
+        for (i = 0; i < K; i++)
+          res_and = res_and & in[i+k][j];
+
+      res_xor = 0;
+      for (j = 0; j < K; j++)
+        for (i = 0; i < K; i++)
+          res_xor = res_xor ^ in[i+k][j];
+
+      out[k] = res_or + res_and + res_xor;
+    }
+}
+
+int main ()
+{
+  int i, j, k;
+
+  check_vect ();
+
+  for  (j = 0; j < K; j++)
+    {
+      for (i = 0; i < 2*K; i++)
+        in[i][j] = i+j;
+
+      for (i = 0; i < K; i++)
+        out[i] = i+j;
+    }
+
+  foo();
+
+  for (k = 0; k < K; k++)
+    if (out[k] != check_result[k])
+      abort ();
+
+  return 0;
+}
+        
+/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 3 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+