compiler-rt/test/hwasan/TestCases/use-after-scope-temp.cpp

   1 // This is the ASAN test of the same name ported to HWAsan.
   2
   3 // RUN: %clangxx_hwasan -mllvm -hwasan-use-after-scope -std=c++11 -O1 %s -o %t && \
   4 // RUN:     not %run %t 2>&1 | FileCheck %s
   5
   6 // REQUIRES: aarch64-target-arch
   7 // REQUIRES: stable-runtime
   8
   9 struct IntHolder {
  10   int val;
  11 };
  12
  13 const IntHolder *saved;
  14
  15 __attribute__((noinline)) void save(const IntHolder &holder) {
  16   saved = &holder;
  17 }
  18
  19 int main(int argc, char *argv[]) {
  20   save({argc});
  21   int x = saved->val; // BOOM
  22   // CHECK: ERROR: HWAddressSanitizer: tag-mismatch
  23   // CHECK:  #0 0x{{.*}} in main {{.*}}use-after-scope-temp.cpp:[[@LINE-2]]
  24   // CHECK: Cause: stack tag-mismatch
  25   return x;
  26 }