| // RUN: %clangxx_msan -fno-sanitize-memory-param-retval -O0 %s -o %t && %run %t %p | |
| // PR17377: C++ module destructors get stale argument shadow. | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| class A { | |
| public: | |
| // This destructor get stale argument shadow left from the call to f(). | |
| ~A() { | |
| if (this) | |
| exit(0); | |
| } | |
| }; | |
| A a; | |
| __attribute__((noinline)) | |
| void f(long x) { | |
| } | |
| int main(void) { | |
| long x; | |
| long * volatile p = &x; | |
| // This call poisons TLS shadow for the first function argument. | |
| f(*p); | |
| return 0; | |
| } |