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, 58 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/slp-perm-2.c b/gcc/testsuite/gcc.dg/vect/slp-perm-2.c
new file mode 100644
index 000000000..1bc95e2e9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-perm-2.c
@@ -0,0 +1,58 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define M00 100
+#define M10 216
+#define M01 1322
+#define M11 13
+#define M02 74
+#define M12 191
+
+#define N 16
+
+void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
+{
+  unsigned int i, a, b;
+
+  for (i = 0; i < N / 2; i++)
+    {
+       a = *pInput++;
+       b = *pInput++;
+
+       *pOutput++ = M00 * a + M01 * b;
+       *pOutput++ = M10 * a + M11 * b;
+    }
+}
+
+int main (int argc, const char* argv[])
+{
+  unsigned int input[N], output[N], i;
+  unsigned int check_results[N] = {1322, 13, 4166, 471, 7010, 929, 9854, 1387, 12698, 1845, 15542, 2303, 18386, 2761, 21230, 3219};
+
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    {
+      input[i] = i%256;
+      output[i] = 0;
+      __asm__ volatile ("");
+    }
+
+  foo (input, output);
+
+  for (i = 0; i < N; i++)
+    {
+      if (output[i] != check_results[i])
+	abort ();
+      __asm__ volatile ("");
+    }
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target vect_perm } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target vect_perm } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+