1 // RUN: %clang_cc1 -std=c++11 -emit-llvm -triple=x86_64-apple-darwin9 -o - %s | FileCheck %s 2 3 template<unsigned I, typename ...Types> 4 struct X { }; 5 6 template<typename T> struct identity { using type = T; }; 7 template<typename T> struct add_reference; 8 template<typename ...Types> struct tuple { }; 9 template<int ...Values> struct int_tuple { }; 10 template<template<typename> class ...Templates> struct template_tuple { }; 11 template<typename ...T> using ArrayOfN = int[sizeof...(T)]; 12 13 // CHECK-LABEL: define weak_odr void @_Z2f0IJEEv1XIXsZT_EJDpRT_EE 14 template<typename ...Types> 15 void f0(X<sizeof...(Types), Types&...>) { } 16 17 template void f0(X<0>); 18 19 // CHECK-LABEL: define weak_odr void @_Z2f0IJifdEEv1XIXsZT_EJDpRT_EE 20 template void f0<int, float, double>(X<3, int&, float&, double&>); 21 22 // Mangling for template argument packs 23 template<typename ...Types> void f1() {} 24 // CHECK-LABEL: define weak_odr void @_Z2f1IJEEvv 25 template void f1<>(); 26 // CHECK-LABEL: define weak_odr void @_Z2f1IJiEEvv 27 template void f1<int>(); 28 // CHECK-LABEL: define weak_odr void @_Z2f1IJifEEvv 29 template void f1<int, float>(); 30 31 // Mangling function parameter packs 32 template<typename ...Types> void f2(Types...) {} 33 // CHECK-LABEL: define weak_odr void @_Z2f2IJEEvDpT_ 34 template void f2<>(); 35 // CHECK-LABEL: define weak_odr void @_Z2f2IJiEEvDpT_ 36 template void f2<int>(int); 37 // CHECK-LABEL: define weak_odr void @_Z2f2IJifEEvDpT_ 38 template void f2<int, float>(int, float); 39 40 // Mangling non-trivial function parameter packs 41 template<typename ...Types> void f3(const Types *...) {} 42 // CHECK-LABEL: define weak_odr void @_Z2f3IJEEvDpPKT_ 43 template void f3<>(); 44 // CHECK-LABEL: define weak_odr void @_Z2f3IJiEEvDpPKT_ 45 template void f3<int>(const int*); 46 // CHECK-LABEL: define weak_odr void @_Z2f3IJifEEvDpPKT_ 47 template void f3<int, float>(const int*, const float*); 48 49 // Mangling of type pack expansions in a template argument 50 template<typename ...Types> tuple<Types...> f4() {} 51 // CHECK-LABEL: define weak_odr void @_Z2f4IJifdEE5tupleIJDpT_EEv 52 template tuple<int, float, double> f4(); 53 54 // Mangling of type pack expansions in a function type 55 template<typename R, typename ...ArgTypes> identity<R(ArgTypes...)> f5() {} 56 // CHECK-LABEL: define weak_odr void @_Z2f5IiJifdEE8identityIFT_DpT0_EEv 57 template identity<int(int, float, double)> f5(); 58 59 // Mangling of non-type template argument expansions 60 template<int ...Values> int_tuple<Values...> f6() {} 61 // CHECK-LABEL: define weak_odr void @_Z2f6IJLi1ELi2ELi3EEE9int_tupleIJXspT_EEEv 62 template int_tuple<1, 2, 3> f6(); 63 64 // Mangling of template template argument expansions 65 template<template<typename> class ...Templates> 66 template_tuple<Templates...> f7() {} 67 // CHECK-LABEL: define weak_odr void @_Z2f7IJ8identity13add_referenceEE14template_tupleIJDpT_EEv 68 template template_tuple<identity, add_reference> f7(); 69 70 template<typename T, typename ...U> void f8(ArrayOfN<int, U..., T, typename U::type...>&) {} 71 // CHECK-LABEL: define weak_odr void @_Z2f8IiJ8identityIiES0_IfEEEvRAsPiDpT0_T_DpNS3_4typeEE_i 72 template void f8<int, identity<int>, identity<float>>(int (&)[6]); 73 74 template<typename ...T> void f10(ArrayOfN<T...> &) {} 75 // FIXME: This is wrong; should be @_Z3f10IJifEEvRAsZT__i 76 // CHECK-LABEL: define weak_odr void @_Z3f10IJifEEvRAsPDpT_E_i 77 template void f10<int, float>(int (&)[2]); 78
