lib/asan/lit_tests/force_inline_opt0.cc

// This test checks that we are no instrumenting a memory access twice
// (before and after inlining)
// RUN: %clangxx_asan -m64 -O1 %s -o %t && %t
// RUN: %clangxx_asan -m64 -O0 %s -o %t && %t
__attribute__((always_inline))
void foo(int *x) {
  *x = 0;
}

int main() {
  int x;
  foo(&x);
  return x;
}