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 | |