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// PR rtl-optimization/48549
// { dg-do compile }
// { dg-options "-fcompare-debug -O2" }
// { dg-xfail-if "" { powerpc-ibm-aix* } { "*" } { "" } }
__extension__ typedef __PTRDIFF_TYPE__ pdiff_t;
void
foo (void *from, void *to)
{
pdiff_t offset = reinterpret_cast <pdiff_t>(to)
- reinterpret_cast <pdiff_t>(from);
if (offset != static_cast <int>(offset))
*(int *) 0xC0DE = 0;
reinterpret_cast <int *>(from)[1] = offset;
}
struct A
{
A () : a () {}
A (void *x) : a (x) {}
void *bar () { return a; }
void *a;
};
struct C;
struct D;
struct E : public A
{
C m1 (int);
D m2 ();
E () {}
E (A x) : A (x) {}
};
struct C : public E
{
C () {}
C (void *x) : E (x) {}
};
struct D : public E
{
D (void *x) : E (x) {}
};
C
E::m1 (int x)
{
return (reinterpret_cast <char *>(bar ()) + x);
}
D
E::m2 ()
{
return reinterpret_cast <char *>(bar ());
}
struct B
{
E a;
unsigned b : 16;
unsigned c : 1;
};
void
baz (B *x)
{
for (unsigned i = 0; i < 64; i++)
{
D d = x[i].a.m2 ();
C c = x[i].a.m1 (x[i].c);
foo (d.bar (), c.bar ());
}
}
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