clang/test/CodeGenCXX/ms-inheriting-ctor.cpp

   1 // RUN: %clang_cc1 -fcxx-exceptions -triple=x86_64-windows-msvc -emit-llvm %s -o - | FileCheck %s
   2
   3 class F {
   4 public:
   5   F(wchar_t *);
   6 };
   7 using a = F;
   8 struct A {};
   9 struct b {
  10   b(a, F, A);
  11 };
  12 template <typename, typename> struct c : b {
  13   c(const a &p1, const A &d) : b(p1, 0, d) {}
  14 };
  15 template <typename e> struct B : c<e, b> {
  16   using c<e, b>::c;
  17 };
  18 class f {
  19 public:
  20   f(...);
  21 }
  22
  23 typedef g;
  24 class C {
  25 public:
  26   C(g, f);
  27 };
  28 static wchar_t h;
  29 class D {
  30 public:
  31   static C E();
  32 };
  33
  34 C D::E() {
  35   C i(B<bool>(&h, {}), f());
  36   return i;
  37 }
  38
  39 // Inheriting ctor has internal linkage without comdat.
  40
  41 // CHECK-LABEL: define internal noundef ptr @"??0?$B@_N@@QEAA@AEBVF@@AEBUA@@@Z"
  42 // CHECK-NOT:comdat
  43 // CHECK-SAME: {{\{$}}
  44
  45 // non-inheriting ctro should has linkonce_odr with comdat attribute.
  46
  47 // CHECK-LABEL: define linkonce_odr dso_local noundef ptr @"??0?$c@_NUb@@@@QEAA@AEBVF@@AEBUA@@@Z"
  48 // CHECK:comdat
  49 // CHECK-SAME: {{\{$}}