65 lines · cpp
1// RUN: %clang_cc1 -std=c++20 %s -emit-llvm -o - -triple x86_64-linux | FileCheck %s --check-prefix=ITANIUM --implicit-check-not=DoNotEmit2// RUN: %clang_cc1 -std=c++20 %s -emit-llvm -o - -triple x86_64-windows | FileCheck %s --check-prefix=MSABI --implicit-check-not=DoNotEmit3 4// FIXME: The MSVC ABI rule in use here was discussed with MS folks prior to5// them implementing virtual consteval functions, but we do not know for sure6// if this is the ABI rule they will use.7 8// ITANIUM-DAG: @_ZTV1A = {{.*}} constant { [2 x ptr] } {{.*}} null, {{.*}} @_ZTI1A9// MSABI-DAG: @[[A_VFTABLE:.*]] = {{.*}} constant { [1 x ptr] } {{.*}} @"??_R4A@@6B@"10struct A {11 virtual consteval void DoNotEmit_f() {}12};13// ITANIUM-DAG: @a = {{.*}}global %struct.A { {{.*}} @_ZTV1A,14// MSABI-DAG: @"?a@@3UA@@A" = {{.*}}global %struct.A { ptr @"??_7A@@6B@" }15A a;16 17// ITANIUM-DAG: @_ZTV1B = {{.*}} constant { [4 x ptr] } {{.*}} null, ptr @_ZTI1B, ptr @_ZN1B1fEv, ptr @_ZN1B1hEv18// MSABI-DAG: @[[B_VFTABLE:.*]] = {{.*}} constant { [3 x ptr] } {{.*}} @"??_R4B@@6B@", ptr @"?f@B@@UEAAXXZ", ptr @"?h@B@@UEAAXXZ"19struct B {20 virtual void f() {}21 virtual consteval void DoNotEmit_g() {}22 virtual void h() {}23};24// ITANIUM-DAG: @b = {{.*}}global %struct.B { {{.*}} @_ZTV1B,25// MSABI-DAG: @"?b@@3UB@@A" = {{.*}}global %struct.B { ptr @"??_7B@@6B@" }26B b;27 28// ITANIUM-DAG: @_ZTV1C = {{.*}} constant { [4 x ptr] } {{.*}} null, ptr @_ZTI1C, ptr @_ZN1CD1Ev, ptr @_ZN1CD0Ev29// MSABI-DAG: @[[C_VFTABLE:.*]] = {{.*}} constant { [2 x ptr] } {{.*}} @"??_R4C@@6B@", ptr @"??_GC@@UEAAPEAXI@Z"30struct C {31 virtual ~C() = default;32 virtual consteval C &operator=(const C&) = default;33};34// ITANIUM-DAG: @c = {{.*}}global %struct.C { {{.*}} @_ZTV1C,35// MSABI-DAG: @"?c@@3UC@@A" = {{.*}}global %struct.C { ptr @"??_7C@@6B@" }36C c;37 38// ITANIUM-DAG: @_ZTV1D = {{.*}} constant { [4 x ptr] } {{.*}} null, ptr @_ZTI1D, ptr @_ZN1DD1Ev, ptr @_ZN1DD0Ev39// MSABI-DAG: @[[D_VFTABLE:.*]] = {{.*}} constant { [2 x ptr] } {{.*}} @"??_R4D@@6B@", ptr @"??_GD@@UEAAPEAXI@Z"40struct D : C {};41// ITANIUM-DAG: @d = {{.*}}global { ptr } { {{.*}} @_ZTV1D,42// MSABI-DAG: @"?d@@3UD@@A" = {{.*}}global { ptr } { ptr @"??_7D@@6B@" }43D d;44 45// ITANIUM-DAG: @_ZTV1E = {{.*}} constant { [3 x ptr] } {{.*}} null, ptr @_ZTI1E, ptr @_ZN1E1fEv46// MSABI-DAG: @[[E_VFTABLE:.*]] = {{.*}} constant { [2 x ptr] } {{.*}} @"??_R4E@@6B@", ptr @"?f@E@@UEAAXXZ"47struct E { virtual void f() {} };48// ITANIUM-DAG: @e = {{.*}}global %struct.E { {{.*}} @_ZTV1E,49// MSABI-DAG: @"?e@@3UE@@A" = {{.*}}global %struct.E { ptr @"??_7E@@6B@" }50E e;51 52// ITANIUM-DAG: @_ZTV1F = {{.*}} constant { [3 x ptr] } {{.*}} null, ptr @_ZTI1F, ptr @_ZN1E1fEv53// MSABI-DAG: @[[F_VFTABLE:.*]] = {{.*}} constant { [2 x ptr] } {{.*}} @"??_R4F@@6B@", ptr @"?f@E@@UEAAXXZ"54struct F : E { virtual consteval void DoNotEmit_g(); };55// ITANIUM-DAG: @f = {{.*}}global { ptr } { {{.*}} @_ZTV1F,56// MSABI-DAG: @"?f@@3UF@@A" = {{.*}}global { ptr } { ptr @"??_7F@@6B@" }57F f;58 59// MSABI-DAG: @"??_7A@@6B@" = {{.*}} alias {{.*}} @[[A_VFTABLE]],60// MSABI-DAG: @"??_7B@@6B@" = {{.*}} alias {{.*}} @[[B_VFTABLE]],61// MSABI-DAG: @"??_7C@@6B@" = {{.*}} alias {{.*}} @[[C_VFTABLE]],62// MSABI-DAG: @"??_7D@@6B@" = {{.*}} alias {{.*}} @[[D_VFTABLE]],63// MSABI-DAG: @"??_7E@@6B@" = {{.*}} alias {{.*}} @[[E_VFTABLE]],64// MSABI-DAG: @"??_7F@@6B@" = {{.*}} alias {{.*}} @[[F_VFTABLE]],65