Viewing file:  devirt-c-8.C (1.2 KB) -rw-r--r--
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/* Verify that ipa-cp correctly detects the dynamic type of an object
under construction when doing devirtualization. */
/* { dg-do run } */
/* { dg-options "-O3 -fno-early-inlining -fno-inline -fdump-ipa-cp -fdump-tree-optimized" } */
extern "C" void abort (void);
class A
{
public:
int data;
A();
virtual int foo (int i);
};
class B : public A
{
public:
B();
virtual int foo (int i);
};
class C : public A
{
public:
virtual int foo (int i);
};
int A::foo (int i)
{
return i + 1;
}
int B::foo (int i)
{
return i + 2;
}
int C::foo (int i)
{
return i + 3;
}
static int __attribute__ ((noinline))
middleman (class A *obj, int i)
{
return obj->foo (i);
}
int __attribute__ ((noinline,noclone)) get_input(void)
{
return 1;
}
inline __attribute__ ((always_inline)) A::A ()
{
if (middleman (this, get_input ()) != 2)
abort ();
}
inline __attribute__ ((always_inline)) B::B ()
{
}
static void bah ()
{
class B b;
}
int main (int argc, char *argv[])
{
int i;
for (i = 0; i < 10; i++)
bah ();
return 0;
}
/* { dg-final { scan-ipa-dump "Discovered a virtual call to a known target.*A::foo" "cp" } } */
/* { dg-final { scan-tree-dump-times "OBJ_TYPE_REF" 0 "optimized"} } */
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