summaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/predict-22.c
blob: f14c2b6886131fa8e559981f122eec0e15649184 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
/* { dg-do compile { target freorder } } */
/* { dg-options "-O2 -fdump-tree-optimized-details-blocks -fdump-rtl-bbpart-details-blocks -freorder-blocks-and-partition" } */
volatile int v;
void bar (void) __attribute__((leaf, cold));
void baz (int *);

void
foo (int x, int y, int z)
{
  static int f __attribute__((section ("mysection")));
  f = 1;
  if (__builtin_expect (x, 0))
  if (__builtin_expect (y, 0))
  if (__builtin_expect (z, 0))
    {
      f = 2;
      bar ();
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      v += 1;
      v *= 2;
      v /= 2;
      v -= 1;
      f = 3;
      __builtin_abort ();
    }
  f = 4;
  f = 5;
  baz (&f);
}
/* { dg-final { scan-tree-dump-times "Invalid sum" 0 "optimized"} } */
/* { dg-final { scan-tree-dump-times "count 0 .precise.," 1 "optimized"} } */
/* { dg-final { scan-rtl-dump-times "COLD_PARTITION" 1 "bbpart"} } */