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 { }; 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 12 // CHECK-LABEL: define weak_odr void @_Z2f0IJEEv1XIXsZT_EJDpRT_EE 13 template<typename ...Types> 14 void f0(X<sizeof...(Types), Types&...>) { } 15 16 template void f0(X<0>); 17 18 // CHECK-LABEL: define weak_odr void @_Z2f0IJifdEEv1XIXsZT_EJDpRT_EE 19 template void f0<int, float, double>(X<3, int&, float&, double&>); 20 21 // Mangling for template argument packs 22 template<typename ...Types> void f1() {} 23 // CHECK-LABEL: define weak_odr void @_Z2f1IJEEvv 24 template void f1<>(); 25 // CHECK-LABEL: define weak_odr void @_Z2f1IJiEEvv 26 template void f1<int>(); 27 // CHECK-LABEL: define weak_odr void @_Z2f1IJifEEvv 28 template void f1<int, float>(); 29 30 // Mangling function parameter packs 31 template<typename ...Types> void f2(Types...) {} 32 // CHECK-LABEL: define weak_odr void @_Z2f2IJEEvDpT_ 33 template void f2<>(); 34 // CHECK-LABEL: define weak_odr void @_Z2f2IJiEEvDpT_ 35 template void f2<int>(int); 36 // CHECK-LABEL: define weak_odr void @_Z2f2IJifEEvDpT_ 37 template void f2<int, float>(int, float); 38 39 // Mangling non-trivial function parameter packs 40 template<typename ...Types> void f3(const Types *...) {} 41 // CHECK-LABEL: define weak_odr void @_Z2f3IJEEvDpPKT_ 42 template void f3<>(); 43 // CHECK-LABEL: define weak_odr void @_Z2f3IJiEEvDpPKT_ 44 template void f3<int>(const int*); 45 // CHECK-LABEL: define weak_odr void @_Z2f3IJifEEvDpPKT_ 46 template void f3<int, float>(const int*, const float*); 47 48 // Mangling of type pack expansions in a template argument 49 template<typename ...Types> tuple<Types...> f4() {} 50 // CHECK-LABEL: define weak_odr void @_Z2f4IJifdEE5tupleIJDpT_EEv 51 template tuple<int, float, double> f4(); 52 53 // Mangling of type pack expansions in a function type 54 template<typename R, typename ...ArgTypes> identity<R(ArgTypes...)> f5() {} 55 // CHECK-LABEL: define weak_odr void @_Z2f5IiJifdEE8identityIFT_DpT0_EEv 56 template identity<int(int, float, double)> f5(); 57 58 // Mangling of non-type template argument expansions 59 template<int ...Values> int_tuple<Values...> f6() {} 60 // CHECK-LABEL: define weak_odr void @_Z2f6IJLi1ELi2ELi3EEE9int_tupleIJXspT_EEEv 61 template int_tuple<1, 2, 3> f6(); 62 63 // Mangling of template template argument expansions 64 template<template<typename> class ...Templates> 65 template_tuple<Templates...> f7() {} 66 // CHECK-LABEL: define weak_odr void @_Z2f7IJ8identity13add_referenceEE14template_tupleIJDpT_EEv 67 template template_tuple<identity, add_reference> f7(); 68
