43 lines · cpp
1// RUN: %clang_cc1 -std=c++1z %s -triple %itanium_abi_triple -emit-llvm -o - | FileCheck %s2 3template<typename T> struct A {4 A(T = 0);5 A(void*);6};7 8template<typename T> A(T*) -> A<long>;9A() -> A<int>;10 11// CHECK-LABEL: @_Z1fPi(12void f(int *p) {13 // CHECK: @_ZN1AIiEC14 A a{};15 16 // CHECK: @_ZN1AIlEC17 A b = p;18 19 // CHECK: @_ZN1AIxEC20 A c = 123LL;21}22 23namespace N {24 template<typename T> struct B { B(T); };25}26using N::B;27 28struct X {29 template<typename T> struct C { C(T); };30};31 32// CHECK: @_Z1gIiEDaT_DTcv1AfL0p_ES1_IS0_E33template<typename T> auto g(T x, decltype(A(x)), A<T>) {}34// CHECK: @_Z1hIiEDaT_DTcvN1N1BEfL0p_ENS2_IS0_EE35template<typename T> auto h(T x, decltype(B(x)), B<T>) {}36// CHECK: @_Z1iI1XiEDaT0_DTcvNT_1CEfL0p_ENS2_1CIS1_EE(37template<typename U, typename T> auto i(T x, decltype(typename U::C(x)), typename U::template C<T>) {}38void test() {39 g(1, 2, A(3));40 h(1, 2, B(3));41 i<X>(1, 2, X::C(3));42}43