1 // REQUIRES: gwp_asan
2 // RUN: %clangxx_gwp_asan %s -o %t
3 // RUN: %expect_crash %run %t 2>&1 | FileCheck %s
4 
5 // CHECK: GWP-ASan detected a memory error
6 // CHECK: Invalid (Wild) Free at 0x{{[a-f0-9]+}} (1 byte to the left of a
7 // CHECK-SAME: 1-byte allocation
8 
9 #include <cstdlib>
10 
main()11 int main() {
12   char *Ptr =
13       reinterpret_cast<char *>(malloc(1));
14   free(Ptr - 1);
15   return 0;
16 }
17