1 /* { dg-additional-options "-fwrapv" } */
2
3 #include <limits.h>
4
5 extern void abort ();
6
test2(int x)7 int test2(int x)
8 {
9 return x + INT_MIN;
10 }
11
test3(int x)12 int test3(int x)
13 {
14 return x - INT_MIN;
15 }
16
test5(int x)17 int test5(int x)
18 {
19 int y = INT_MIN;
20 return x + y;
21 }
22
test6(int x)23 int test6(int x)
24 {
25 int y = INT_MIN;
26 return x - y;
27 }
28
29
30
test(int a,int b)31 void test(int a, int b)
32 {
33 if (test2(a) != b)
34 abort();
35 if (test3(a) != b)
36 abort();
37 if (test5(a) != b)
38 abort();
39 if (test6(a) != b)
40 abort();
41 }
42
43
main()44 int main()
45 {
46 #if INT_MAX == 2147483647
47 test(0x00000000,0x80000000);
48 test(0x80000000,0x00000000);
49 test(0x12345678,0x92345678);
50 test(0x92345678,0x12345678);
51 test(0x7fffffff,0xffffffff);
52 test(0xffffffff,0x7fffffff);
53 #endif
54
55 #if INT_MAX == 32767
56 test(0x0000,0x8000);
57 test(0x8000,0x0000);
58 test(0x1234,0x9234);
59 test(0x9234,0x1234);
60 test(0x7fff,0xffff);
61 test(0xffff,0x7fff);
62 #endif
63
64 return 0;
65 }
66