1// RUN: %clang_tysan -O0 %s -o %t && %run %t >%t.out 2>&1
2// RUN: FileCheck %s < %t.out
3
4float *P;
5void 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
14int main() {
15 P = (float *)&P;
16 zero_array();
17}
18
19// CHECK-NOT: ERROR: TypeSanitizer: type-aliasing-violation
20

source code of compiler-rt/test/tysan/ptr-float.c