blob: 09cbf8ba0f6befcd8aac0ad483f8ca54396b032f (
plain) (
blame)
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
|
// RUN: %llvmgcc %s -emit-llvm -g -O0 -c -o %t.bc
// RUN: rm -rf %t.klee-out
// RUN: %klee --output-dir=%t.klee-out -check-overshift %t.bc 2> %t.log
// RUN: grep -c "overshift error" %t.log
// RUN: grep -c "OvershiftCheck.c:20: overshift error" %t.log
// RUN: grep -c "OvershiftCheck.c:24: overshift error" %t.log
/* This test checks that two consecutive potential overshifts
* are reported as errors.
*/
int main()
{
unsigned int x=15;
unsigned int y;
unsigned int z;
volatile unsigned int result;
/* Overshift if y>= sizeof(x) */
klee_make_symbolic(&y,sizeof(y),"shift_amount1");
result = x << y;
/* Overshift is z>= sizeof(x) */
klee_make_symbolic(&z,sizeof(z),"shift_amount2");
result = x >> z;
return 0;
}
|
