Viewing file:  devirt-5.C (1.26 KB) -rw-r--r--
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/* Verify that ipa-cp can convert simple virtual calls to a direct
ones even when a typecast to an ancestor is involved along the way
and that ancestor is not the first one with virtual functions. */
/* { dg-do run } */
/* { dg-options "-O3 -fno-early-inlining -fno-inline -fdump-ipa-cp -fdump-tree-optimized" } */
extern "C" void abort (void);
class Distraction
{
public:
float f;
double d;
Distraction ()
{
f = 8.3;
d = 10.2;
}
virtual float bar (float z);
};
class A
{
public:
int data;
virtual int foo (int i);
};
class B : public Distraction, public A
{
public:
virtual int foo (int i);
};
float Distraction::bar (float z)
{
f += z;
return f/2;
}
int A::foo (int i)
{
return i + 1;
}
int B::foo (int i)
{
return i + 2;
}
int __attribute__ ((noinline,noclone)) get_input(void)
{
return 1;
}
static int middleman_1 (class A *obj, int i)
{
return obj->foo (i);
}
static int middleman_2 (class B *obj, int i)
{
return middleman_1 (obj, i);
}
int main (int argc, char *argv[])
{
class B b;
if (middleman_2 (&b, get_input ()) != 3)
abort ();
return 0;
}
/* { dg-final { scan-ipa-dump "Discovered a virtual call to a known target.*B::foo" "cp" } } */
/* { dg-final { scan-tree-dump-times "OBJ_TYPE_REF" 0 "optimized"} } */
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