Subversion Repositories openrisc

// Test that type punning using an anonymous union works with strict aliasing.

// { dg-do run }

// { dg-options "-O2 -fstrict-aliasing" }

extern "C" void abort ();

void f (long i)

{

  union

  {

    long ui;

    float uf[20];

  };

  ui = i;

  if (uf[0] != 42.0)

    abort ();

}

int main ()

{

  union U { long i; float f[20]; } u;

  u.f[0] = 42.0;

  f (u.i);

}