1 | // RUN: %clangxx_msan -fno-sanitize-memory-param-retval -O0 %s -o %t && %run %t %p |
2 | |
3 | // PR17377: C++ module destructors get stale argument shadow. |
4 | |
5 | #include <stdio.h> |
6 | #include <stdlib.h> |
7 | class A { |
8 | public: |
9 | // This destructor get stale argument shadow left from the call to f(). |
10 | ~A() { |
11 | if (this) |
12 | exit(status: 0); |
13 | } |
14 | }; |
15 | |
16 | A a; |
17 | |
18 | __attribute__((noinline)) |
19 | void f(long x) { |
20 | } |
21 | |
22 | int main(void) { |
23 | long x; |
24 | long * volatile p = &x; |
25 | // This call poisons TLS shadow for the first function argument. |
26 | f(x: *p); |
27 | return 0; |
28 | } |
29 | |