gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp70.c


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

/* { dg-do compile } */
/* { dg-require-effective-target int32plus } */
/* { dg-options "-O2 -fdump-tree-vrp1" } */

extern void link_error (void);

void
foo (unsigned int s)
{
  if (s + 0x70000000 < 0xf0000000U)
    {
      if (s >= 0x80000000U && s < 0x90000000U)
	link_error ();
    }
}

void
bar (unsigned int s)
{
  if (s + 0x70000000 >= 0xf0000000U)
    {
      if (s < 0x80000000U || s >= 0x90000000U)
	link_error ();
    }
}

/* { dg-final { scan-tree-dump-not "link_error" "vrp1" } } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */