re PR tree-optimization/18400 (wrong unrolling after vectorization due to…

re PR tree-optimization/18400 (wrong unrolling after vectorization due to invalid loop->nb_iterations)

2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>

        PR tree-opt/18400
        * gcc.dg/vect/pr18400.c: New test.

2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/18425
        * gcc.dg/vect/pr18425.c: New test.

Co-Authored-By: Andrew Pinski <pinskia@physics.uc.edu>

From-SVN: r90631

gcc/testsuite/ChangeLog

+2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>
+
+	PR tree-opt/18400
+	* gcc.dg/vect/pr18400.c: New test.
+
+2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>
+            Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR tree-opt/18425
+	* gcc.dg/vect/pr18425.c: New test.
+
 2004-11-14  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	* gcc.dg/tls/alias-1.c: Remove dg-warning on the SPARC.

gcc/testsuite/gcc.dg/vect/pr18400.c

+/* { dg-do run { target powerpc*-*-* } } */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-funroll-loops -O2 -ftree-vectorize -fdump-tree-vect-stats -maltivec" { target powerpc*-*-* } } */
+/* { dg-options "-funroll-loops -O2 -ftree-vectorize -fdump-tree-vect-stats -msse2" { target i?86-*-* x86_64-*-* } } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 8
+ 
+int main1 ()
+{  
+  int b[N] = {0,3,6,9,12,15,18,21};
+  int a[N];
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      a[i] = b[i];
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (a[i] != b[i])
+        abort ();
+    }
+
+  return 0;
+}
+
+int main (void)
+{ 
+  check_vect ();
+  
+  return main1 ();
+} 
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */

gcc/testsuite/gcc.dg/vect/pr18425.c

+/* { dg-do compile { target powerpc*-*-* i?86-*-* x86_64-*-* } } */
+/* { dg-options "-S -O2 -ftree-vectorize -fdump-tree-vect-stats -maltivec" { target powerpc*-*-* } } */
+/* { dg-options "-S -O2 -ftree-vectorize -fdump-tree-vect-stats -msse2" { target i?86-*-* x86_64-*-* } } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 16
+
+char **      _M_allocate();
+void
+_M_fill_insert(unsigned int __n)
+{
+   char **__new_start = _M_allocate();
+   char *__tmp = 0;
+   for (; __n > 0; --__n, ++__new_start)
+     *__new_start = __tmp;
+}
+
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */