test/asan/TestCases/use-after-scope-temp.cc

   1 // RUN: %clangxx_asan -O0 -fsanitize=use-after-scope %s -o %t && \
   2 // RUN:     %t 2>&1 | FileCheck %s
   3 //
   4 // Lifetime for temporaries is not emitted yet.
   5 // XFAIL: *
   6
   7 #include <stdio.h>
   8
   9 struct IntHolder {
  10   explicit IntHolder(int val) : val(val) {
  11     printf("IntHolder: %d\n", val);
  12   }
  13   int val;
  14 };
  15
  16 const IntHolder *saved;
  17
  18 void save(const IntHolder &holder) {
  19   saved = &holder;
  20 }
  21
  22 int main(int argc, char *argv[]) {
  23   save(IntHolder(10));
  24   int x = saved->val;  // BOOM
  25   // CHECK: ERROR: AddressSanitizer: stack-use-after-scope
  26   // CHECK:  #0 0x{{.*}} in main {{.*}}use-after-scope-temp.cc:[[@LINE-2]]
  27   printf("saved value: %d\n", x);
  28   return 0;
  29 }