gcc/testsuite/gcc.dg/vect/vect-72.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 char ia[N];
  14 char ib[N+1];
  15
  16 __attribute__ ((noinline))
  17 int main1 ()
  18 {
  19   int i;
  20
  21   for (i=0; i < N+1; i++)
  22     {
  23       ib[i] = i;
  24       if (i%3 == 0)
  25         ib[i] = 5;
  26       /* Avoid vectorization.  */
  27       __asm__ volatile ("" : : : "memory");
  28     }
  29
  30   for (i = 1; i < N+1; i++)
  31     {
  32       ia[i-1] = ib[i];
  33     }
  34
  35   /* check results:  */
  36 #pragma GCC novector
  37   for (i = 1; i <= N; i++)
  38     {
  39       if (ia[i-1] != ib[i])
  40         abort ();
  41     }
  42
  43   return 0;
  44 }
  45
  46 int main (void)
  47 {
  48   check_vect ();
  49
  50   return main1 ();
  51 }
  52
  53 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
  54 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { ! vect_unaligned_possible } } } } */
  55 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
  56 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */