1  /* { dg-do compile } */
       2  /* { dg-require-effective-target alloca } */
       3  /* { dg-options "-Walloca -O0" } */
       4  
       5  extern void f(void *);
       6  
       7  void foo(void)
       8  {
       9    // Test that strict -Walloca works even without optimization.
      10    f (__builtin_alloca(500)); // { dg-warning "use of 'alloca'" }
      11  }
      12  
      13  void bar(void)
      14  {
      15    // Test that we warn on alloca() calls, not just __builtin_alloca calls.
      16    extern void *alloca(__SIZE_TYPE__);
      17    f (alloca (123)); // { dg-warning "use of 'alloca'" }
      18  }