blob: 6a4f288bbe0c509d109a10b5a776a36881bc1bc5 (
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
|
/* { dg-do run } */
/* { dg-options "-fsanitize=signed-integer-overflow -Wno-unused-variable" } */
#include <stdio.h>
#define SCHAR_MIN (-__SCHAR_MAX__ - 1)
#define SHRT_MIN (-__SHRT_MAX__ - 1)
#define INT_MIN (-__INT_MAX__ - 1)
#define LONG_MIN (-__LONG_MAX__ - 1L)
#define LLONG_MIN (-__LONG_LONG_MAX__ - 1LL)
#define CHECK(A, B) ({ if ((A) != (B)) __builtin_abort (); })
int
main (void)
{
fputs ("UBSAN TEST START\n", stderr);
volatile signed char c = -SCHAR_MIN;
CHECK (c, -128);
volatile short s = -SHRT_MIN;
CHECK (s, -32768);
volatile int i = INT_MIN;
i = -(unsigned) i;
CHECK (i, -0x80000000);
volatile long int li = LONG_MIN;
li = -(unsigned long) li;
#if __LONG_MAX__ == 2147483647L
CHECK (li, -0x80000000L);
#elif __LONG_MAX__ == 9223372036854775807L
CHECK (li, -0x8000000000000000L);
#endif
volatile long long lli = LLONG_MIN;
lli = -(unsigned long long) lli;
CHECK (lli, -0x8000000000000000L);
fputs ("UBSAN TEST END\n", stderr);
return 0;
}
/* { dg-output "UBSAN TEST START(\n|\r\n|\r)UBSAN TEST END" } */
|