| 1 | // RUN: %clangxx_nsan -O0 -g %s -o %t |
|---|---|
| 2 | // RUN: env NSAN_OPTIONS=check_nan=true,halt_on_error=0 %run %t 2>&1 | FileCheck %s |
| 3 | |
| 4 | // RUN: %clangxx_nsan -O3 -g %s -o %t |
| 5 | // RUN: env NSAN_OPTIONS=check_nan=true,halt_on_error=0 %run %t 2>&1 | FileCheck %s |
| 6 | |
| 7 | // RUN: %clangxx_nsan -O0 -g %s -o %t |
| 8 | // RUN: env NSAN_OPTIONS=check_nan=true,halt_on_error=1 not %run %t |
| 9 | |
| 10 | #include <cmath> |
| 11 | #include <cstdio> |
| 12 | |
| 13 | // This function returns a NaN value for triggering the NaN detection. |
| 14 | __attribute__((noinline)) float ReturnNaN(float p, float q) { |
| 15 | float ret = p / q; |
| 16 | return ret; |
| 17 | // CHECK: WARNING: NumericalStabilitySanitizer: NaN detected |
| 18 | } |
| 19 | |
| 20 | int main() { |
| 21 | float val = ReturnNaN(p: 0., q: 0.); |
| 22 | printf("%f\n", val); |
| 23 | // CHECK: WARNING: NumericalStabilitySanitizer: NaN detected |
| 24 | return 0; |
| 25 | } |
| 26 |