xref: /llvm-project/bolt/test/Inputs/jump_table_icp.cpp (revision da766cea56df4216ee7911c7b1ab5790c1046038) 
1 #include "stub.h"
2 
3 int total = 0;
4 
inc(int x)5 int inc(int x) {
6   switch (x) {
7     case 0: total += 1 + 0; return 1;
8     case 1: total += 1 + 1; return 2;
9     case 2: total += 1 + 2; return 3;
10     case 3: total += 1 + 3; return 4;
11     case 4: total += 1 + 4; return 5;
12     case 5: total += 1 + 5; return 6;
13     default: return x + 1;
14   }
15 }
16 
inc_dup(int x)17 int inc_dup(int x) {
18   switch (x) {
19     case 0: total += 2 + 0; return 1;
20     case 1: total += 2 + 1; return 2;
21     case 2: total += 2 + 2; return 3;
22     case 3: total += 2 + 3; return 4;
23     case 4: total += 2 + 4; return 5;
24     case 5: total += 2 + 5; return 6;
25     default: return x + 1;
26   }
27 }
28 
main()29 int main() {
30   int c = 0;
31   for (int i = 0; i < 10000000; ++i) {
32     int a = rand() % 7;
33     int b = rand() % 7;
34     c += inc(a) - 2*inc_dup(b);
35   }
36   return c == 0;
37 }
38