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, 53 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-8.c b/gcc/testsuite/gcc.dg/vect/bb-slp-8.c
new file mode 100644
index 000000000..b1203f4db
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/bb-slp-8.c
@@ -0,0 +1,53 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 16 
+
+unsigned int out[N];
+unsigned int in[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+
+__attribute__ ((noinline)) int
+main1 (unsigned int x, unsigned int y, unsigned int *pin, unsigned int *pout)
+{
+  int i;
+  unsigned int a0, a1, a2, a3;
+ 
+  /* pin and pout may alias.  But since all the loads are before the first
+     store the basic block is vectorizable.  */
+  a0 = *pin++ + 23;
+  a1 = *pin++ + 142;
+  a2 = *pin++ + 2;
+  a3 = *pin++ + 31;
+  
+  *pout++ = a0 * x;
+  *pout++ = a1 * y;
+  *pout++ = a2 * x;
+  *pout++ = a3 * y;
+
+  if (i)
+    __asm__ volatile ("" : : : "memory");
+
+  /* Check results.  */
+  if (out[0] != (in[0] + 23) * x
+      || out[1] != (in[1] + 142) * y
+      || out[2] != (in[2] + 2) * x
+      || out[3] != (in[3] + 31) * y)
+    abort ();
+
+  return 0;
+}
+
+int main (void)
+{
+  check_vect ();
+
+  main1 (2, 3, &in[0], &out[0]);
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "basic block vectorized using SLP" 1 "slp"  { target vect_hw_misalign } } } */
+/* { dg-final { cleanup-tree-dump "slp" } } */
+