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, 73 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/slp-35.c b/gcc/testsuite/gcc.dg/vect/slp-35.c
new file mode 100644
index 000000000..f75691431
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-35.c
@@ -0,0 +1,73 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128 
+
+typedef struct {
+   int a;
+   int b;
+   int c;
+   int d;
+   int e;
+} s;
+
+int
+main1 (s *arr)
+{
+  int i;
+  s *ptr = arr;
+  s res[N];
+
+  /* SLP with unrolling by 4.  */
+  for (i = 0; i < N; i++)
+    {
+      res[i].c = ptr->c + ptr->c;
+      res[i].a = ptr->a + ptr->a;
+      res[i].d = ptr->d + ptr->d;
+      res[i].b = ptr->b + ptr->b;
+      res[i].e = ptr->e + ptr->e; 
+      ptr++; 
+    } 
+   
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    { 
+      if (res[i].c != arr[i].c + arr[i].c
+          || res[i].a != arr[i].a + arr[i].a
+          || res[i].d != arr[i].d + arr[i].d
+          || res[i].b != arr[i].b + arr[i].b
+          || res[i].e != arr[i].e + arr[i].e)
+         abort();
+    }
+
+}
+
+int main (void)
+{
+  int i;
+  s arr[N];
+  
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    { 
+      arr[i].a = i;
+      arr[i].b = i * 2;
+      arr[i].c = 17;
+      arr[i].d = i+34;
+      arr[i].e = i * 3 + 5;
+      if (arr[i].a == 178)
+         abort(); 
+    } 
+
+  main1 (arr);
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+