Viewing file:  devirt-3.C (1.06 KB) -rw-r--r--
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/* Verify that simple virtual calls on an object refrence are
converted to simple calls by ipa-cp. */
/* { 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;
virtual float distraction (float f);
virtual int foo (int i);
};
class B : public A
{
public:
virtual int foo (int i);
};
class C : public A
{
public:
virtual int foo (int i);
};
float A::distraction (float f)
{
f += 6.2;
return f/2;
}
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 middleman (class A &obj, int i)
{
return obj.foo (i);
}
int __attribute__ ((noinline,noclone)) get_input(void)
{
return 1;
}
int main (int argc, char *argv[])
{
class B b;
if (middleman (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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