20011018-1.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

/* { dg-do compile { target alpha*-*-* } } */
/* { dg-options "-O2 -mieee" } */

double foo (void);
void bar (float, float);

void test (void)
{
  float f, g;

  f = foo();
  g = foo();
  asm ("");
  bar (f, g);
}