| 1 | // RUN: %clang_tysan -O0 %s -o %t && %run %t >%t.out 2>&1 |
| 2 | // RUN: FileCheck %s < %t.out |
| 3 | |
| 4 | float *P; |
| 5 | void zero_array() { |
| 6 | int i; |
| 7 | for (i = 0; i < 1; ++i) |
| 8 | P[i] = 0.0f; |
| 9 | // CHECK: ERROR: TypeSanitizer: type-aliasing-violation |
| 10 | // CHECK: WRITE of size 4 at {{.*}} with type float accesses an existing object of type p1 float |
| 11 | // CHECK: {{#0 0x.* in zero_array .*ptr-float.c:}}[[@LINE-3]] |
| 12 | } |
| 13 | |
| 14 | int main() { |
| 15 | P = (float *)&P; |
| 16 | zero_array(); |
| 17 | } |
| 18 | |
| 19 | // CHECK-NOT: ERROR: TypeSanitizer: type-aliasing-violation |
| 20 | |