1 // RUN: %clang_cc1 -std=c++1z -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s 2 3 template<int> struct A {}; 4 template<int ...N> void foldr(A<(N + ...)>); 5 template<int ...N> void foldl(A<(... + N)>); 6 template<int ...N> void foldr1(A<(N + ... + 1)>); 7 template<int ...N> void foldl1(A<(1 + ... + N)>); 8 void use() { 9 foldr<1, 2, 3>({}); 10 foldl<1, 2, 3>({}); 11 foldr1<1, 2, 3>({}); 12 foldl1<1, 2, 3>({}); 13 // CHECK-DAG: @_Z5foldrIJLi1ELi2ELi3EEEv1AIXfrplT_EE( 14 // CHECK-DAG: @_Z5foldlIJLi1ELi2ELi3EEEv1AIXflplT_EE( 15 // CHECK-DAG: @_Z6foldr1IJLi1ELi2ELi3EEEv1AIXfRplT_Li1EEE( 16 // CHECK-DAG: @_Z6foldl1IJLi1ELi2ELi3EEEv1AIXfLplLi1ET_EE( 17 } 18 19 template<int ...N> using Foldr = A<(N + ...)>; 20 template<int ...N> using Foldl = A<(... + N)>; 21 template<int ...N> using Foldr1 = A<(N + ... + 1)>; 22 template<int ...N> using Foldl1 = A<(1 + ... + N)>; 23 24 template<int ...A> struct Partial { 25 template<int ...B> void foldr(Foldr<A..., B..., A..., B...>); 26 template<int ...B> void foldl(Foldl<A..., B..., A..., B...>); 27 template<int ...B> void foldr1(Foldr1<A..., B..., A..., B...>); 28 template<int ...B> void foldl1(Foldl1<A..., B..., A..., B...>); 29 }; 30 void use(Partial<1, 2> p) { 31 p.foldr<3, 4>({}); 32 p.foldl<3, 4>({}); 33 p.foldr1<3, 4>({}); 34 p.foldl1<3, 4>({}); 35 // CHECK-DAG: @_ZN7PartialIJLi1ELi2EEE5foldrIJLi3ELi4EEEEv1AIXplLi1EplLi2EfRplT_plLi1EplLi2EfrplT_EE( 36 // CHECK-DAG: @_ZN7PartialIJLi1ELi2EEE5foldlIJLi3ELi4EEEEv1AIXfLplplplfLplplLi1ELi2ET_Li1ELi2ET_EE 37 // CHECK-DAG: @_ZN7PartialIJLi1ELi2EEE6foldr1IJLi3ELi4EEEEv1AIXplLi1EplLi2EfRplT_plLi1EplLi2EfRplT_Li1EEE( 38 // CHECK-DAG: @_ZN7PartialIJLi1ELi2EEE6foldl1IJLi3ELi4EEEEv1AIXfLplplplfLplplplLi1ELi1ELi2ET_Li1ELi2ET_EE( 39 } 40 41 extern int n; 42 template<int ...N> void f() { 43 (n = ... = N); 44 } 45 template void f<>(); 46
