gcc/testsuite/gcc.dg/vect/vect-33-big-array.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* { dg-additional-options "--param vect-max-peeling-for-alignment=0" } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 #define N 128
   9 struct test {
  10   char ca[N];
  11 };
  12
  13 extern struct test s;
  14
  15 __attribute__ ((noinline))
  16 int main1 ()
  17 {
  18   int i;
  19
  20   for (i = 0; i < N; i++)
  21     {
  22       s.ca[i] = 5;
  23     }
  24
  25   /* check results:  */
  26   for (i = 0; i < N; i++)
  27     {
  28       if (s.ca[i] != 5)
  29         abort ();
  30     }
  31
  32   return 0;
  33 }
  34
  35 int main (void)
  36 {
  37   return main1 ();
  38 }
  39
  40
  41 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  } } */
  42 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" { target { {! vector_alignment_reachable} && {! vect_hw_misalign} } } } } */