Viewing file:  imm-devirt-1.C (1.34 KB) -rw-r--r--
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/* Verify that virtual calls are folded even early inlining puts them into one
function with the definition. */
/* { dg-do run } */
/* { dg-options "-O2 -fdump-tree-einline-optimized" } */
extern "C" void abort (void);
class A
{
public:
int data;
virtual int foo (int i);
};
class B : public A
{
public:
__attribute__ ((noinline)) B();
virtual int foo (int i);
};
int __attribute__ ((noinline)) A::foo (int i)
{
return i + 1;
}
int __attribute__ ((noinline)) B::foo (int i)
{
return i + 2;
}
int __attribute__ ((noinline,noclone)) get_input(void)
{
return 1;
}
__attribute__ ((noinline)) B::B()
{
}
static inline int middleman_1 (class A *obj, int i)
{
return obj->foo (i);
}
static inline 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;
}
/* middleman_2 gets early inlined and the virtual call should get turned to
a direct call. */
/* { dg-final { scan-tree-dump "Inlining int middleman_1" "einline" { target { ! implicit_constexpr } } } } */
/* { dg-final { scan-tree-dump "Inlining int middleman_2" "einline" { target { ! implicit_constexpr } } } } */
/* { dg-final { scan-tree-dump "B::foo \\(" "einline" } } */
/* { dg-final { scan-tree-dump-times "OBJ_TYPE_REF" 2 "einline" } } */
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