gcc/testsuite/gcc.dg/vect/vect-35.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 __attribute__ ((noinline))
  10 int main1 ()
  11 {
  12   union {
  13     unsigned char a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  14     unsigned char b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  15   } s;
  16   int i;
  17
  18   /* Initialization.  */
  19   for (i = 0; i < N; i++)
  20     {
  21       s.b[i] = i;
  22     }
  23
  24   for (i = 0; i < N; i++)
  25     {
  26       s.a[i] = s.b[i] + 1;
  27     }
  28
  29   /* check results:  */
  30 #pragma GCC novector
  31   for (i = 0; i < N; i++)
  32     {
  33       if (s.a[i] != i + 1)
  34         abort ();
  35     }
  36
  37   return 0;
  38 }
  39
  40 int main (void)
  41 {
  42   check_vect ();
  43
  44   return main1 ();
  45 }
  46
  47
  48 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect"  { xfail { ia64-*-* sparc*-*-* } } } } */
  49 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */