gcc/testsuite/gcc.dg/vect/vect-sdivmod-1.c

   1 #include "tree-vect.h"
   2
   3 extern void abort (void);
   4 int a[4096];
   5
   6 __attribute__((noinline, noclone)) void
   7 f1 (int x)
   8 {
   9   int i, j;
  10   for (i = 1; i <= x; i++)
  11     {
  12       j = a[i] >> 8;
  13       j = 1 + (j / 2);
  14       a[i] = j << 8;
  15     }
  16 }
  17
  18 __attribute__((noinline, noclone)) void
  19 f2 (int x)
  20 {
  21   int i, j;
  22   for (i = 1; i <= x; i++)
  23     {
  24       j = a[i] >> 8;
  25       j = 1 + (j / 16);
  26       a[i] = j << 8;
  27     }
  28 }
  29
  30 __attribute__((noinline, noclone)) void
  31 f3 (int x)
  32 {
  33   int i, j;
  34   for (i = 1; i <= x; i++)
  35     {
  36       j = a[i] >> 8;
  37       j = 1 + (j % 2);
  38       a[i] = j << 8;
  39     }
  40 }
  41
  42 __attribute__((noinline, noclone)) void
  43 f4 (int x)
  44 {
  45   int i, j;
  46   for (i = 1; i <= x; i++)
  47     {
  48       j = a[i] >> 8;
  49       j = 1 + (j % 16);
  50       a[i] = j << 8;
  51     }
  52 }
  53
  54 int
  55 main ()
  56 {
  57   int i;
  58   check_vect ();
  59   for (i = 0; i < 4096; i++)
  60     {
  61       asm ("");
  62       a[i] = (i - 2048) << 8;
  63     }
  64   f1 (4095);
  65   if (a[0] != (-2048 << 8))
  66     abort ();
  67   for (i = 1; i < 4096; i++)
  68     if (a[i] != ((1 + ((i - 2048) / 2)) << 8))
  69       abort ();
  70     else
  71       a[i] = (i - 2048) << 8;
  72   f2 (4095);
  73   if (a[0] != (-2048 << 8))
  74     abort ();
  75   for (i = 1; i < 4096; i++)
  76     if (a[i] != ((1 + ((i - 2048) / 16)) << 8))
  77       abort ();
  78     else
  79       a[i] = (i - 2048) << 8;
  80   f3 (4095);
  81   if (a[0] != (-2048 << 8))
  82     abort ();
  83   for (i = 1; i < 4096; i++)
  84     if (a[i] != ((1 + ((i - 2048) % 2)) << 8))
  85       abort ();
  86     else
  87       a[i] = (i - 2048) << 8;
  88   f4 (4095);
  89   if (a[0] != (-2048 << 8))
  90     abort ();
  91   for (i = 1; i < 4096; i++)
  92     if (a[i] != ((1 + ((i - 2048) % 16)) << 8))
  93       abort ();
  94   return 0;
  95 }
  96
  97 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 4 "vect" { target vect_condition } } } */
  98 /* { dg-final { cleanup-tree-dump "vect" } } */