gcc/testsuite/gcc.dg/vect/vect-peel-4-src.c

   1 #include <stdarg.h>
   2 #include "tree-vect.h"
   3
   4 #define N 128
   5
   6 int ib[N+7];
   7 int ia[N+1];
   8
   9 __attribute__ ((noinline))
  10 int main1 ()
  11 {
  12   int i;
  13
  14   /* Don't peel keeping one load and the store aligned.  */
  15   for (i = 0; i <= N; i++)
  16     {
  17       ia[i] = ib[i] + ib[i+5];
  18     }
  19
  20   /* check results:  */
  21 #pragma GCC novector
  22   for (i = 1; i <= N; i++)
  23     {
  24       if (ia[i] != ib[i] + ib[i+5])
  25         abort ();
  26     }
  27
  28   return 0;
  29 }
  30
  31 int main (void)
  32 {
  33   int i;
  34
  35   check_vect ();
  36
  37   for (i = 0; i <= N+6; i++)
  38     {
  39       asm volatile ("" : "+r" (i));
  40       ib[i] = i;
  41     }
  42
  43   return main1 ();
  44 }
  45
  46