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

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-add-options bind_pic_locally } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 128
   8
   9 int ib[N+7];
  10 int ia[N+1];
  11
  12 __attribute__ ((noinline))
  13 int main1 ()
  14 {
  15   int i;
  16
  17   /* Don't peel keeping one load and the store aligned.  */
  18   for (i = 0; i <= N; i++)
  19     {
  20       ia[i] = ib[i] + ib[i+5];
  21     }
  22
  23   /* check results:  */
  24   for (i = 1; i <= N; i++)
  25     {
  26       if (ia[i] != ib[i] + ib[i+5])
  27         abort ();
  28     }
  29
  30   return 0;
  31 }
  32
  33 int main (void)
  34 {
  35   int i;
  36
  37   check_vect ();
  38
  39   for (i = 0; i <= N+6; i++)
  40     {
  41       asm volatile ("" : "+r" (i));
  42       ib[i] = i;
  43     }
  44
  45   return main1 ();
  46 }
  47
  48 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
  49 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect"  { xfail { ! vect_unaligned_possible } } } } */
  50 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */