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

   1 // This is the ASAN test of the same name ported to HWAsan.
   2
   3 // RUN: %clangxx_hwasan --std=c++11 -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
   4
   5 // REQUIRES: aarch64-target-arch || riscv64-target-arch
   6
   7 #include <functional>
   8
   9 int main() {
  10   std::function<int()> f;
  11   {
  12     volatile int x = 0;
  13     f = [&x]() __attribute__((noinline)) {
  14       return x; // BOOM
  15       // CHECK: ERROR: HWAddressSanitizer: tag-mismatch
  16       // We cannot assert the line, after the argument promotion pass this crashes
  17       // in the BOOM line below instead, when the ref gets turned into a value.
  18       // CHECK: 0x{{.*}} in {{.*}}use-after-scope-capture.cpp
  19       // CHECK: Cause: stack tag-mismatch
  20     };
  21   }
  22   return f(); // BOOM
  23 }