| 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 | |
|---|