1 /* PR rtl-optimization/20017
2 
3    After CSE/GCSE folds a switch statement to an unconditional jump,
4    cfg_cleanup did not remove a dead jump table, confusing the CFG
5    layout code later on.  */
6 
7 /* { dg-do compile } */
8 /* { dg-options "-O1" } */
9 /* { dg-options "-O1 -march=i386" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
10 
11 int
foo(int * buf,int * p)12 foo (int *buf, int *p)
13 {
14   int result;
15   const int *tmp;
16 
17   if (*buf)
18     return 1;
19 
20   result = 2;
21   *buf = 2;
22   tmp = buf;
23   switch (*tmp)
24     {
25     case 3:
26     case 4:
27     case 6:
28     case 14:
29       return 1;
30 
31     case 0:
32       result = *p;
33 
34       /* Fall through.  */
35     default:
36       if (result)
37 	return 1;
38     }
39 
40   return 0;
41 }
42