gcc/testsuite/gcc.dg/vect/vect-27.c

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0 -fdump-tree-optimized-details-blocks" } */
   3 /* { dg-require-effective-target vect_int } */
   4 /* { dg-add-options bind_pic_locally } */
   5
   6 #include <stdarg.h>
   7 #include "tree-vect.h"
   8
   9 #define N 128
  10
  11 /* unaligned load.  */
  12
  13 int ia[N];
  14 int ib[N+1];
  15
  16 __attribute__ ((noinline))
  17 int main1 ()
  18 {
  19   int i;
  20
  21   for (i=0; i <= N; i++)
  22     {
  23       ib[i] = i;
  24     }
  25
  26   for (i = 1; i <= N; i++)
  27     {
  28       ia[i-1] = ib[i];
  29     }
  30
  31   /* check results:  */
  32 #pragma GCC novector
  33   for (i = 1; i <= N; i++)
  34     {
  35       if (ia[i-1] != ib[i])
  36         abort ();
  37     }
  38
  39   return 0;
  40 }
  41
  42 int main (void)
  43 {
  44   check_vect ();
  45
  46   return main1 ();
  47 }
  48
  49 /* The initialization induction loop (with aligned access) is also vectorized.  */
  50 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
  51 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */
  52 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { ! vect_unaligned_possible } } } } */
  53 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
  54 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */