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RedBear-OS/local/recipes/dev/libclc/source/clang/test/CodeGenCXX/microsoft-abi-vtables-single-inheritance.cpp
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

317 lines
8.5 KiB
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// RUN: %clang_cc1 %s -fno-rtti -triple=i386-pc-win32 -emit-llvm -fdump-vtable-layouts -o %t.ll > %t
// RUN: FileCheck --check-prefix=EMITS-VFTABLE %s < %t.ll
// RUN: FileCheck --check-prefix=NO-VFTABLE %s < %t.ll
// RUN: FileCheck %s < %t
struct A {
// CHECK-LABEL: VFTable for 'A' (3 entries)
// CHECK-NEXT: 0 | void A::f()
// CHECK-NEXT: 1 | void A::g()
// CHECK-NEXT: 2 | void A::h()
// CHECK-LABEL: VFTable indices for 'A' (3 entries)
// CHECK-NEXT: 0 | void A::f()
// CHECK-NEXT: 1 | void A::g()
// CHECK-NEXT: 2 | void A::h()
virtual void f();
virtual void g();
virtual void h();
int ia;
};
A a;
// EMITS-VFTABLE-DAG: @"??_7A@@6B@" = linkonce_odr unnamed_addr constant { [3 x ptr] }
void use(A *obj) { obj->f(); }
struct B : A {
// CHECK-LABEL: VFTable for 'A' in 'B' (5 entries)
// CHECK-NEXT: 0 | void B::f()
// CHECK-NEXT: 1 | void A::g()
// CHECK-NEXT: 2 | void A::h()
// CHECK-NEXT: 3 | void B::i()
// CHECK-NEXT: 4 | void B::j()
// CHECK-LABEL: VFTable indices for 'B' (3 entries)
// CHECK-NEXT: 0 | void B::f()
// CHECK-NEXT: 3 | void B::i()
// CHECK-NEXT: 4 | void B::j()
virtual void f(); // overrides A::f()
virtual void i();
virtual void j();
};
B b;
// EMITS-VFTABLE-DAG: @"??_7B@@6B@" = linkonce_odr unnamed_addr constant { [5 x ptr] }
void use(B *obj) { obj->f(); }
struct C {
// CHECK-LABEL: VFTable for 'C' (2 entries)
// CHECK-NEXT: 0 | C::~C() [scalar deleting]
// CHECK-NEXT: 1 | void C::f()
// CHECK-LABEL: VFTable indices for 'C' (2 entries).
// CHECK-NEXT: 0 | C::~C() [scalar deleting]
// CHECK-NEXT: 1 | void C::f()
virtual ~C();
virtual void f();
};
void C::f() {}
// NO-VFTABLE-NOT: @"??_7C@@6B@"
void use(C *obj) { obj->f(); }
struct D {
// CHECK-LABEL: VFTable for 'D' (2 entries)
// CHECK-NEXT: 0 | void D::f()
// CHECK-NEXT: 1 | D::~D() [scalar deleting]
// CHECK-LABEL: VFTable indices for 'D' (2 entries)
// CHECK-NEXT: 0 | void D::f()
// CHECK-NEXT: 1 | D::~D() [scalar deleting]
virtual void f();
virtual ~D();
};
D d;
// EMITS-VFTABLE-DAG: @"??_7D@@6B@" = linkonce_odr unnamed_addr constant { [2 x ptr] }
void use(D *obj) { obj->f(); }
struct E : A {
// CHECK-LABEL: VFTable for 'A' in 'E' (5 entries)
// CHECK-NEXT: 0 | void A::f()
// CHECK-NEXT: 1 | void A::g()
// CHECK-NEXT: 2 | void A::h()
// CHECK-NEXT: 3 | E::~E() [scalar deleting]
// CHECK-NEXT: 4 | void E::i()
// CHECK-LABEL: VFTable indices for 'E' (2 entries).
// CHECK-NEXT: 3 | E::~E() [scalar deleting]
// CHECK-NEXT: 4 | void E::i()
// ~E would be the key method, but it isn't used, and MS ABI has no key
// methods.
virtual ~E();
virtual void i();
};
void E::i() {}
// NO-VFTABLE-NOT: @"??_7E@@6B@"
void use(E *obj) { obj->i(); }
struct F : A {
// CHECK-LABEL: VFTable for 'A' in 'F' (5 entries)
// CHECK-NEXT: 0 | void A::f()
// CHECK-NEXT: 1 | void A::g()
// CHECK-NEXT: 2 | void A::h()
// CHECK-NEXT: 3 | void F::i()
// CHECK-NEXT: 4 | F::~F() [scalar deleting]
// CHECK-LABEL: VFTable indices for 'F' (2 entries).
// CHECK-NEXT: 3 | void F::i()
// CHECK-NEXT: 4 | F::~F() [scalar deleting]
virtual void i();
virtual ~F();
};
F f;
// EMITS-VFTABLE-DAG: @"??_7F@@6B@" = linkonce_odr unnamed_addr constant { [5 x ptr] }
void use(F *obj) { obj->i(); }
struct G : E {
// CHECK-LABEL: VFTable for 'A' in 'E' in 'G' (6 entries)
// CHECK-NEXT: 0 | void G::f()
// CHECK-NEXT: 1 | void A::g()
// CHECK-NEXT: 2 | void A::h()
// CHECK-NEXT: 3 | G::~G() [scalar deleting]
// CHECK-NEXT: 4 | void E::i()
// CHECK-NEXT: 5 | void G::j()
// CHECK-LABEL: VFTable indices for 'G' (3 entries).
// CHECK-NEXT: 0 | void G::f()
// CHECK-NEXT: 3 | G::~G() [scalar deleting]
// CHECK-NEXT: 5 | void G::j()
virtual void f(); // overrides A::f()
virtual ~G();
virtual void j();
};
void G::j() {}
// NO-VFTABLE-NOT: @"??_7G@@6B@"
void use(G *obj) { obj->j(); }
// Test that the usual Itanium-style key method does not emit a vtable.
struct H {
virtual void f();
};
void H::f() {}
// NO-VFTABLE-NOT: @"??_7H@@6B@"
struct Empty { };
struct I : Empty {
// CHECK-LABEL: VFTable for 'I' (2 entries)
// CHECK-NEXT: 0 | void I::f()
// CHECK-NEXT: 1 | void I::g()
virtual void f();
virtual void g();
};
I i;
void use(I *obj) { obj->f(); }
struct J {
// CHECK-LABEL: VFTable for 'J' (6 entries)
// CHECK-NEXT: 0 | void J::foo(long)
// CHECK-NEXT: 1 | void J::foo(int)
// CHECK-NEXT: 2 | void J::foo(short)
// CHECK-NEXT: 3 | void J::bar(long)
// CHECK-NEXT: 4 | void J::bar(int)
// CHECK-NEXT: 5 | void J::bar(short)
virtual void foo(short);
virtual void bar(short);
virtual void foo(int);
virtual void bar(int);
virtual void foo(long);
virtual void bar(long);
};
J j;
void use(J *obj) { obj->foo(42); }
struct K : J {
// CHECK-LABEL: VFTable for 'J' in 'K' (9 entries)
// CHECK-NEXT: 0 | void J::foo(long)
// CHECK-NEXT: 1 | void J::foo(int)
// CHECK-NEXT: 2 | void J::foo(short)
// CHECK-NEXT: 3 | void J::bar(long)
// CHECK-NEXT: 4 | void J::bar(int)
// CHECK-NEXT: 5 | void J::bar(short)
// CHECK-NEXT: 6 | void K::bar(double)
// CHECK-NEXT: 7 | void K::bar(float)
// CHECK-NEXT: 8 | void K::foo(float)
virtual void bar(float);
virtual void foo(float);
virtual void bar(double);
};
K k;
void use(K *obj) { obj->foo(42.0f); }
struct L : J {
// CHECK-LABEL: VFTable for 'J' in 'L' (9 entries)
// CHECK-NEXT: 0 | void J::foo(long)
// CHECK-NEXT: 1 | void L::foo(int)
// CHECK-NEXT: 2 | void J::foo(short)
// CHECK-NEXT: 3 | void J::bar(long)
// CHECK-NEXT: 4 | void J::bar(int)
// CHECK-NEXT: 5 | void J::bar(short)
// CHECK-NEXT: 6 | void L::foo(float)
// CHECK-NEXT: 7 | void L::bar(double)
// CHECK-NEXT: 8 | void L::bar(float)
// This case is interesting. Since the J::foo(int) override is the first method in
// the class, foo(float) precedes the bar(double) and bar(float) in the vftable.
virtual void foo(int);
virtual void bar(float);
virtual void foo(float);
virtual void bar(double);
};
L l;
void use(L *obj) { obj->foo(42.0f); }
struct M : J {
// CHECK-LABEL: VFTable for 'J' in 'M' (11 entries)
// CHECK-NEXT: 0 | void J::foo(long)
// CHECK-NEXT: 1 | void M::foo(int)
// CHECK-NEXT: 2 | void J::foo(short)
// CHECK-NEXT: 3 | void J::bar(long)
// CHECK-NEXT: 4 | void J::bar(int)
// CHECK-NEXT: 5 | void J::bar(short)
// CHECK-NEXT: 6 | void M::foo(float)
// CHECK-NEXT: 7 | void M::spam(long)
// CHECK-NEXT: 8 | void M::spam(int)
// CHECK-NEXT: 9 | void M::bar(double)
// CHECK-NEXT: 10 | void M::bar(float)
virtual void foo(int);
virtual void spam(int);
virtual void bar(float);
virtual void bar(double);
virtual void foo(float);
virtual void spam(long);
};
M m;
void use(M *obj) { obj->foo(42.0f); }
struct N {
// CHECK-LABEL: VFTable for 'N' (4 entries)
// CHECK-NEXT: 0 | void N::operator+(int)
// CHECK-NEXT: 1 | void N::operator+(short)
// CHECK-NEXT: 2 | void N::operator*(int)
// CHECK-NEXT: 3 | void N::operator*(short)
virtual void operator+(short);
virtual void operator*(short);
virtual void operator+(int);
virtual void operator*(int);
};
N n;
void use(N *obj) { obj->operator+(42); }
struct O { virtual A *f(); };
struct P : O { virtual B *f(); };
P p;
void use(O *obj) { obj->f(); }
void use(P *obj) { obj->f(); }
// CHECK-LABEL: VFTable for 'O' (1 entry)
// CHECK-NEXT: 0 | A *O::f()
// CHECK-LABEL: VFTable for 'O' in 'P' (1 entry)
// CHECK-NEXT: 0 | B *P::f()
struct Q {
// CHECK-LABEL: VFTable for 'Q' (2 entries)
// CHECK-NEXT: 0 | void Q::foo(int)
// CHECK-NEXT: 1 | void Q::bar(int)
void foo(short);
void bar(short);
virtual void bar(int);
virtual void foo(int);
};
Q q;
void use(Q *obj) { obj->foo(42); }
// Inherited non-virtual overloads don't participate in the ordering.
struct R : Q {
// CHECK-LABEL: VFTable for 'Q' in 'R' (4 entries)
// CHECK-NEXT: 0 | void Q::foo(int)
// CHECK-NEXT: 1 | void Q::bar(int)
// CHECK-NEXT: 2 | void R::bar(long)
// CHECK-NEXT: 3 | void R::foo(long)
virtual void bar(long);
virtual void foo(long);
};
R r;
void use(R *obj) { obj->foo(42l); }
struct S {
// CHECK-LABEL: VFTable for 'S' (1 entry).
// CHECK-NEXT: 0 | void S::f() [deleted]
virtual void f() = delete;
S();
// EMITS-VFTABLE-DAG: @"??_7S@@6B@" = linkonce_odr unnamed_addr constant { [1 x ptr] } { [1 x ptr] [ptr @_purecall] }
};
S::S() {}
struct T {
struct U {};
};
struct V : T {
// CHECK-LABEL: VFTable for 'V' (2 entries).
// CHECK-NEXT: 0 | void V::U()
// CHECK-NEXT: 1 | void V::f()
using T::U;
virtual void f();
virtual void U();
V();
};
V::V() {}
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