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, 87 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/slp-perm-4.c b/gcc/testsuite/gcc.dg/vect/slp-perm-4.c
new file mode 100644
index 000000000..239461a0f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-perm-4.c
@@ -0,0 +1,87 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define M00 100
+#define M10 216
+#define M20 23
+#define M30 237
+#define M40 437
+
+#define M01 1322
+#define M11 13
+#define M21 27271
+#define M31 2280
+#define M41 284
+
+#define M02 74
+#define M12 191
+#define M22 500
+#define M32 111
+#define M42 1114
+
+#define M03 134
+#define M13 117
+#define M23 11
+#define M33 771
+#define M43 71
+
+#define M04 334
+#define M14 147
+#define M24 115
+#define M34 7716
+#define M44 16
+
+#define N 16
+
+void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
+{
+  unsigned int i, a, b, c, d, e;
+
+  for (i = 0; i < N / 5; i++)
+    {
+       a = *pInput++;
+       b = *pInput++;
+       c = *pInput++;
+       d = *pInput++;
+       e = *pInput++;
+
+       *pOutput++ = M00 * a + M01 * b + M02 * c + M03 * d + M04 * e;
+       *pOutput++ = M10 * a + M11 * b + M12 * c + M13 * d + M14 * e;
+       *pOutput++ = M20 * a + M21 * b + M22 * c + M23 * d + M24 * e;
+       *pOutput++ = M30 * a + M31 * b + M32 * c + M33 * d + M34 * e;
+       *pOutput++ = M40 * a + M41 * b + M42 * c + M43 * d + M44 * e;
+    }
+}
+
+int main (int argc, const char* argv[])
+{
+  unsigned int input[N], output[N], i;
+  unsigned int check_results[N] = {3208, 1334, 28764, 35679, 2789, 13028, 4754, 168364, 91254, 12399, 22848, 8174, 307964, 146829, 22009, 0};
+
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    {
+      input[i] = i%256;
+      if (input[i] > 200)
+        abort();
+      output[i] = 0;
+      __asm__ volatile ("");
+    }
+
+  foo (input, output);
+
+  for (i = 0; i < N; i++)
+    if (output[i] != check_results[i])
+      abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect"  } } */
+/* { dg-final { scan-tree-dump-times "permutation requires at least three vectors" 1 "vect" { target vect_perm } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect"  } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+