gcc/testsuite/gcc.dg/vect/vect-28.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-additional-options "--param vect-max-peeling-for-alignment=0 -fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 128
   8 #define OFF 3
   9
  10 /* unaligned store.  */
  11
  12 __attribute__ ((noinline))
  13 int main1 (int off)
  14 {
  15   int i;
  16   int ia[N+OFF];
  17
  18   for (i = 0; i < N; i++)
  19     {
  20       ia[i+off] = 5;
  21     }
  22
  23   /* check results:  */
  24 #pragma GCC novector
  25   for (i = 0; i < N; i++)
  26     {
  27       if (ia[i+off] != 5)
  28         abort ();
  29     }
  30
  31   return 0;
  32 }
  33
  34 int main (void)
  35 {
  36   check_vect ();
  37
  38   main1 (0); /* aligned */
  39   main1 (OFF); /* unaligned */
  40   return 0;
  41 }
  42
  43 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  } } */
  44 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" { target { {! vector_alignment_reachable} && {! vect_hw_misalign} } } } } */
  45 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */