xref: /llvm-project/clang/test/CodeGenCXX/variadic-template-alias.cpp (revision e772a268ef75332b72dd9b9ca0341a6af8b0db72)
1*e772a268SOrlando Cazalet-Hyams // RUN: %clang_cc1 -triple x86_64-unk-unk -o - -emit-llvm -debug-info-kind=standalone -gtemplate-alias %s -gsimple-template-names=simple \
2*e772a268SOrlando Cazalet-Hyams // RUN: | FileCheck %s
3*e772a268SOrlando Cazalet-Hyams 
4*e772a268SOrlando Cazalet-Hyams //// Check that -gtemplate-alias causes DW_TAG_template_alias emission for
5*e772a268SOrlando Cazalet-Hyams //// variadic template aliases. See template-alias.cpp for more template alias
6*e772a268SOrlando Cazalet-Hyams //// tests.
7*e772a268SOrlando Cazalet-Hyams 
8*e772a268SOrlando Cazalet-Hyams template<typename Y, int Z>
9*e772a268SOrlando Cazalet-Hyams struct X {
10*e772a268SOrlando Cazalet-Hyams   Y m1 = Z;
11*e772a268SOrlando Cazalet-Hyams };
12*e772a268SOrlando Cazalet-Hyams 
13*e772a268SOrlando Cazalet-Hyams template<int I, typename... Ts>
14*e772a268SOrlando Cazalet-Hyams using A = X<Ts..., I>;
15*e772a268SOrlando Cazalet-Hyams 
16*e772a268SOrlando Cazalet-Hyams A<5, int> a;
17*e772a268SOrlando Cazalet-Hyams 
18*e772a268SOrlando Cazalet-Hyams // CHECK: !DIDerivedType(tag: DW_TAG_template_alias, name: "A", file: ![[#]], line: [[#]], baseType: ![[baseType:[0-9]+]], extraData: ![[extraData:[0-9]+]])
19*e772a268SOrlando Cazalet-Hyams // CHECK: ![[baseType]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X",
20*e772a268SOrlando Cazalet-Hyams // CHECK: ![[int:[0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
21*e772a268SOrlando Cazalet-Hyams // CHECK: ![[extraData]] = !{![[I:[0-9]+]], ![[Ts:[0-9]+]]}
22*e772a268SOrlando Cazalet-Hyams // CHECK: ![[I]] = !DITemplateValueParameter(name: "I", type: ![[int]], value: i32 5)
23*e772a268SOrlando Cazalet-Hyams // CHECK: ![[Ts]] = !DITemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "Ts", value: ![[types:[0-9]+]])
24*e772a268SOrlando Cazalet-Hyams // CHECK: ![[types]] = !{![[int_template_param:[0-9]+]]}
25*e772a268SOrlando Cazalet-Hyams // CHECK: ![[int_template_param]] = !DITemplateTypeParameter(type: ![[int]])
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