gcc/testsuite/gcc.dg/vect/pr57705.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include "tree-vect.h"
   4
   5 int a[1024];
   6 unsigned char b[1024];
   7
   8 extern void abort (void);
   9
  10 __attribute__((noinline, noclone)) void
  11 foo (int k, int m)
  12 {
  13   int i, k2 = k;
  14   for (i = 0; i < 1024; i++)
  15     {
  16       a[i] = k2;
  17       k2 += m + 1;
  18     }
  19 }
  20
  21 __attribute__((noinline, noclone)) void
  22 bar (int k, int m)
  23 {
  24   int i, k2 = k;
  25   for (i = 0; i < 1024; i++)
  26     {
  27       k2 += m + 1;
  28       a[i] = k2;
  29     }
  30 }
  31
  32 __attribute__((noinline, noclone)) void
  33 baz (int k, int m)
  34 {
  35   int i, k2 = k;
  36   for (i = 0; i < 1024; i++)
  37     {
  38       a[i] = k2;
  39       b[i] = i;
  40       k2 += m + 1;
  41     }
  42 }
  43
  44 int
  45 main ()
  46 {
  47   int i;
  48   check_vect ();
  49   foo (5, 3);
  50   for (i = 0; i < 1024; i++)
  51     if (a[i] != 5 + 4 * i)
  52       abort ();
  53   bar (5, 3);
  54   for (i = 0; i < 1024; i++)
  55     if (a[i] != 9 + 4 * i)
  56       abort ();
  57   baz (5, 3);
  58   for (i = 0; i < 1024; i++)
  59     if (a[i] != 5 + 4 * i || b[i] != (unsigned char) i)
  60       abort ();
  61   return 0;
  62 }
  63
  64 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 3 "vect" { target vect_pack_trunc } } } */
  65 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 2 "vect" { target { ! vect_pack_trunc } } } } */