Subversion Repositories openrisc

/* PR rtl-optimization/9771 */

/* { dg-do run { target i?86-*-* x86_64-*-* } } */

/* { dg-require-effective-target ilp32 } */

/* { dg-options "-O2 -fomit-frame-pointer -ffixed-ebp" } */

extern void abort(void);

extern void exit(int);

register long *B asm ("ebp");

long x = 10;

long y = 20;

void bar(void)

{

  B = &y;

}

void foo()

{

  long *adr = B;

  long save = *adr;

  *adr = 123;

  bar();

  *adr = save;

}

int main()

{

  B = &x;

  foo();

  if (x != 10 || y != 20)

    abort();

  /* We can't return, as our caller may assume %ebp is preserved!  */

  /* We could save/restore it (like foo), but its easier to exit.  */

  exit(0);

}