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/* { dg-do link } */
/* { dg-options "-O -fstrict-aliasing" } */
class first
{
public:
double d;
int f1;
};
class middle : public first
{
};
class second : public middle
{
public:
int f2;
short a;
};
class third
{
public:
char a;
char b;
};
class multi: public third, public second
{
public:
short s;
/* The following field used to be of type char but that causes
class multi to effectively get alias-set zero which we end
up not optimizing because of the fix for PR44164. */
int f3;
};
extern void link_error ();
void
foo (first *s1, second *s2)
{
s1->f1 = 0;
s2->f2 = 0;
s1->f1++;
s2->f2++;
s1->f1++;
s2->f2++;
if (s1->f1 != 2)
link_error ();
}
void
bar (first *s1, multi *s3)
{
s1->f1 = 0;
s3->f3 = 0;
s1->f1++;
s3->f3++;
s1->f1++;
s3->f3++;
if (s1->f1 != 2)
link_error ();
}
int
main()
{
first a;
second b;
multi c;
foo (&a, &b);
bar (&a, &c);
return 0;
}
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