gcc/testsuite/gcc.dg/vect/vect-31.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 32
   8
   9 struct t{
  10   int k[N];
  11   int l;
  12 };
  13
  14 struct s{
  15   char a;       /* aligned */
  16   char b[N-1];  /* unaligned (offset 1B) */
  17   char c[N];    /* aligned (offset NB) */
  18   struct t d;   /* aligned (offset 2NB) */
  19   struct t e;   /* unaligned (offset 2N+4N+4 B) */
  20 };
  21
  22 __attribute__ ((noinline))
  23 int main1 ()
  24 {
  25   int i;
  26   struct s tmp;
  27
  28   /* unaligned */
  29   for (i = 0; i < N/2; i++)
  30     {
  31       tmp.b[i] = 5;
  32     }
  33
  34   /* check results:  */
  35 #pragma GCC novector
  36   for (i = 0; i <N/2; i++)
  37     {
  38       if (tmp.b[i] != 5)
  39         abort ();
  40     }
  41
  42   /* aligned */
  43   for (i = 0; i < N/2; i++)
  44     {
  45       tmp.c[i] = 6;
  46     }
  47
  48   /* check results:  */
  49 #pragma GCC novector
  50   for (i = 0; i <N/2; i++)
  51     {
  52       if (tmp.c[i] != 6)
  53         abort ();
  54     }
  55
  56   /* aligned */
  57   for (i = 0; i < N/2; i++)
  58     {
  59       tmp.d.k[i] = 7;
  60     }
  61
  62   /* check results:  */
  63 #pragma GCC novector
  64   for (i = 0; i <N/2; i++)
  65     {
  66       if (tmp.d.k[i] != 7)
  67         abort ();
  68     }
  69
  70   /* unaligned */
  71   for (i = 0; i < N/2; i++)
  72     {
  73       tmp.e.k[i] = 8;
  74     }
  75
  76   /* check results:  */
  77 #pragma GCC novector
  78   for (i = 0; i <N/2; i++)
  79     {
  80       if (tmp.e.k[i] != 8)
  81         abort ();
  82     }
  83
  84   return 0;
  85 }
  86
  87 int main (void)
  88 {
  89   check_vect ();
  90
  91   return main1 ();
  92 }
  93
  94 /* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" } } */
  95 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */