137 lines
2.6 KiB
C
137 lines
2.6 KiB
C
// { dg-do assemble }
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// Copyright (C) 2001 Free Software Foundation, Inc.
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// Contributed by Nathan Sidwell 12 Apr 2001 <nathan@codesourcery.com>
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// Check we deal with trailing empty base classes properly
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struct A {};
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struct B1 : A {};
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struct B2 : A {};
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struct B3 : A {};
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struct B4 : A {};
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struct B5 : A {};
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struct B6 : A {};
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struct B7 : A {};
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struct B8 : A {};
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struct C1 : B1
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{
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virtual void Foo () {}
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};
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struct C2 : B1, B2
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{
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virtual void Foo () {}
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};
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struct C3 : B1, B2, B3
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{
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virtual void Foo () {}
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};
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struct C4 : B1, B2, B3, B4
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{
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virtual void Foo () {}
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};
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struct C5 : B1, B2, B3, B4, B5
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{
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virtual void Foo () {}
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};
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struct C6 : B1, B2, B3, B4, B5, B6
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{
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virtual void Foo () {}
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};
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struct C7 : B1, B2, B3, B4, B5, B6, B7
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{
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virtual void Foo () {}
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};
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struct C8 : B1, B2, B3, B4, B5, B6, B7, B8
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{
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virtual void Foo () {}
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};
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struct D1 : virtual C1 {};
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struct D2 : virtual C2 {};
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struct D3 : virtual C3 {};
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struct D4 : virtual C4 {};
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struct D5 : virtual C5 {};
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struct D6 : virtual C6 {};
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struct D7 : virtual C7 {};
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struct D8 : virtual C8 {};
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unsigned const nearly_empty_size = sizeof (D1);
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template <typename Cn, typename Dn> int Check (Dn const &ref)
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{
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if ((sizeof (Cn) <= nearly_empty_size)
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!= (static_cast <void const *> (&ref)
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== static_cast <Cn const *> (&ref)))
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return 1;
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return 0;
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}
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template <typename Bn, typename Cn> int Check ()
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{
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Cn c[2];
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if (static_cast <A *> (static_cast <B1 *> (&c[1]))
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== static_cast <A *> (static_cast <Bn *> (&c[0])))
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return 1;
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return 0;
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}
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int main ()
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{
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#if defined (__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100
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if (Check<B1, C1> ())
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return 1;
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if (Check<B2, C2> ())
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return 2;
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if (Check<B3, C3> ())
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return 3;
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if (Check<B4, C4> ())
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return 4;
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if (Check<B5, C5> ())
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return 5;
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if (Check<B6, C6> ())
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return 6;
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if (Check<B7, C7> ())
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return 7;
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if (Check<B8, C8> ())
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return 8;
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if (Check<C1> (D1 ()))
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return 11;
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if (Check<C2> (D2 ()))
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return 12;
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if (Check<C3> (D3 ()))
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return 13;
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if (Check<C4> (D4 ()))
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return 14;
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if (Check<C5> (D5 ()))
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return 15;
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if (Check<C6> (D6 ()))
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return 16;
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if (Check<C7> (D7 ()))
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return 17;
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if (Check<C8> (D8 ()))
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return 18;
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if (sizeof (C2) == nearly_empty_size)
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return 22;
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if (sizeof (C3) == nearly_empty_size)
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return 23;
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if (sizeof (C4) == nearly_empty_size)
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return 24;
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if (sizeof (C5) == nearly_empty_size)
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return 25;
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if (sizeof (C6) == nearly_empty_size)
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return 26;
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if (sizeof (C7) == nearly_empty_size)
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return 27;
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if (sizeof (C8) == nearly_empty_size)
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return 28;
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#endif
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return 0;
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}
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