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, 66 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect-double-reduc-3.c b/gcc/testsuite/gcc.dg/vect/vect-double-reduc-3.c
new file mode 100644
index 000000000..f5376b8bb
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-double-reduc-3.c
@@ -0,0 +1,66 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define K 32
+
+int in[2*K][K] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+int coeff[K][K] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+int out_max[K], out_min[K];
+int check_max[K] = {62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93};
+int check_min[K] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
+
+__attribute__ ((noinline)) void 
+foo (int x, int y)
+{
+  int max, min, i, j, k;
+
+  for (k = 0; k < K; k++)
+    {
+      max = x;
+      min = y;
+      for (j = 0; j < K; j++) 
+        for (i = 0; i < K; i++)
+          {
+            max = max < in[i+k][j] ? in[i+k][j] : max; 
+            min = min > in[i+k][j] ? in[i+k][j] : min; 
+          }
+      out_max[k] = max;
+      out_min[k] = min;
+    }
+}
+
+int main ()
+{
+  int i, j, k;
+
+  check_vect ();
+
+  for  (j = 0; j < K; j++)
+    {
+      for (i = 0; i < 2*K; i++)
+        in[i][j] = i+j;
+
+      for (i = 0; i < K; i++)
+        coeff[i][j] = i+2;
+    }
+
+  foo(0, 0);
+
+  for (k = 0; k < K; k++)
+    if (out_max[k] != check_max[k] || out_min[k] != 0)
+      abort ();
+
+  foo(100, 45);
+
+  for (k = 0; k < K; k++)
+    if (out_min[k] != check_min[k] || out_max[k] != 100)
+      abort ();
+
+  return 0;
+}
+        
+/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" { xfail vect_no_int_max } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+