compiler-rt/test/gwp_asan/invalid_free_left.cpp

   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
  11 int main() {
  12   char *Ptr =
  13       reinterpret_cast<char *>(malloc(1));
  14   free(Ptr - 1);
  15   return 0;
  16 }