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, 42 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-3.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-3.c
new file mode 100644
index 000000000..3e6f17c48
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-3.c
@@ -0,0 +1,42 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 16
+
+unsigned int ub[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
+unsigned int uc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+
+/* Test vectorization of reduction of unsigned-int in the presence
+   of unknown-loop-bound.  */
+
+__attribute__ ((noinline))
+int main1 (int n, int res)
+{
+  int i;
+  unsigned int udiff;
+
+  udiff = 0;
+  for (i = 0; i < n; i++) {
+    udiff += (ub[i] - uc[i]);
+  }
+
+  /* check results:  */
+  if (udiff != res)
+    abort ();
+
+  return 0;
+}
+
+int main (void)
+{ 
+  check_vect ();
+  
+  main1 (N, 240);
+  main1 (N-1, 210);
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_add } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */