23 lines · cpp
1// RUN: %clang_cc1 %s -I%S -triple=x86_64-pc-windows-msvc -fstrict-vtable-pointers -disable-llvm-passes -O1 -emit-llvm -o %t.ll2// RUN: FileCheck %s < %t.ll3 4struct A {5 virtual ~A();6};7struct B : virtual A {};8class C : B {};9C foo;10 11// CHECK-LABEL: define {{.*}} @"??0C@@QEAA@XZ"(ptr {{.*}} %this, i32 {{.*}} %is_most_derived)12// CHECK: ctor.init_vbases:13// CHECK-NEXT: %0 = getelementptr inbounds i8, ptr %this1, i64 014// CHECK-NEXT: store ptr @"??_8C@@7B@", ptr %015// CHECK-NEXT: %1 = call ptr @llvm.launder.invariant.group.p0(ptr %this1)16// CHECK-NEXT: %2 = getelementptr inbounds i8, ptr %1, i64 817// CHECK-NEXT: %call = call noundef ptr @"??0A@@QEAA@XZ"(ptr {{.*}} %2) #218// CHECK-NEXT: br label %ctor.skip_vbases19// CHECK-EMPTY:20// CHECK-NEXT: ctor.skip_vbases:21// CHECK-NEXT: %3 = call ptr @llvm.launder.invariant.group.p0(ptr %this1)22// CHECK-NEXT: %call3 = call noundef ptr @"??0B@@QEAA@XZ"(ptr {{.*}} %3, i32 noundef 0) #223