gcc/testsuite/gcc.dg/vect/vect-strided-u8-i8-gap2.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include <stdio.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 typedef struct {
  10    unsigned char a;
  11    unsigned char b;
  12    unsigned char c;
  13    unsigned char d;
  14    unsigned char e;
  15    unsigned char f;
  16    unsigned char g;
  17    unsigned char h;
  18 } s;
  19
  20 __attribute__ ((noinline)) int
  21 main1 (s *arr)
  22 {
  23   int i;
  24   s *ptr = arr;
  25   s res[N];
  26
  27   for (i = 0; i < N; i++)
  28     {
  29       res[i].c = ptr->b;
  30       res[i].a = ptr->f + ptr->b;
  31       res[i].d = ptr->f - ptr->b;
  32       res[i].b = ptr->f;
  33       res[i].f = ptr->b;
  34       res[i].e = ptr->f - ptr->b;
  35       res[i].h = ptr->f;
  36       res[i].g = ptr->f - ptr->b;
  37       ptr++;
  38     }
  39
  40   /* check results:  */
  41   for (i = 0; i < N; i++)
  42     {
  43       if (res[i].c != arr[i].b
  44           || res[i].a != arr[i].f + arr[i].b
  45           || res[i].d != arr[i].f - arr[i].b
  46           || res[i].b != arr[i].f
  47           || res[i].f != arr[i].b
  48           || res[i].e != arr[i].f - arr[i].b
  49           || res[i].h != arr[i].f
  50           || res[i].g != arr[i].f - arr[i].b)
  51           abort();
  52    }
  53 }
  54
  55
  56 int main (void)
  57 {
  58   int i;
  59   s arr[N];
  60
  61   check_vect ();
  62
  63   for (i = 0; i < N; i++)
  64     {
  65       arr[i].a = i;
  66       arr[i].b = i * 2;
  67       arr[i].c = 17;
  68       arr[i].d = i+34;
  69       arr[i].e = i + 5;
  70       arr[i].f = i * 2 + 2;
  71       arr[i].g = i - 3;
  72       arr[i].h = 56;
  73       if (arr[i].a == 178)
  74          abort();
  75     }
  76
  77   main1 (arr);
  78
  79   return 0;
  80 }
  81
  82 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_interleave && vect_extract_even_odd } } } } */
  83 /* { dg-final { cleanup-tree-dump "vect" } } */
  84