26 lines · cpp
1// RUN: %clang_cc1 -fno-rtti-data -O1 -disable-llvm-passes %s -emit-llvm -o - -triple x86_64-windows-msvc | FileCheck %s2 3// Even though Foo<int> has an extern template declaration, we have to emit our4// own copy the vftable when emitting the available externally constructor.5 6// CHECK: @"??_7?$Foo@H@@6B@" = linkonce_odr unnamed_addr constant { [1 x ptr] } { [1 x ptr] [7// CHECK-SAME: ptr @"??_G?$Foo@H@@UEAAPEAXI@Z"8// CHECK-SAME: ] }, comdat9 10// CHECK-LABEL: define dso_local noundef ptr @"?f@@YAPEAU?$Foo@H@@XZ"()11// CHECK: call noundef ptr @"??0?$Foo@H@@QEAA@XZ"(ptr {{[^,]*}} %{{.*}})12 13// CHECK: define available_externally dso_local noundef ptr @"??0?$Foo@H@@QEAA@XZ"(ptr {{[^,]*}} returned align 8 dereferenceable(8) %this)14// CHECK: store {{.*}} @"??_7?$Foo@H@@6B@"15 16// CHECK: define linkonce_odr dso_local noundef ptr @"??_G?$Foo@H@@UEAAPEAXI@Z"(ptr {{[^,]*}} %this, i32 noundef %should_call_delete)17 18struct Base {19 virtual ~Base();20};21template <typename T> struct Foo : Base {22 Foo() {}23};24extern template class Foo<int>;25Foo<int> *f() { return new Foo<int>(); }26