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)>);
use()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 };
use(Partial<1,2> p)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;
f()42 template<int ...N> void f() {
43 (n = ... = N);
44 }
45 template void f<>();
46