1 // RUN: %clang_cc1 -triple x86_64-unk-unk -o - -emit-llvm -debug-info-kind=standalone -gtemplate-alias %s -gsimple-template-names=simple \ 2 // RUN: | FileCheck %s 3 4 //// Check that -gtemplate-alias causes DW_TAG_template_alias emission for 5 //// template aliases with default parameter values. See template-alias.cpp for 6 //// more template alias tests. 7 //// FIXME: We currently do not emit defaulted arguments. 8 9 template<typename T> 10 struct X { 11 char m; 12 }; 13 14 template<typename T> 15 struct Y { 16 char n; 17 }; 18 19 template <typename NonDefault, template <typename C> class T = Y, int I = 5, typename... Ts> 20 using A = X<NonDefault>; 21 22 //// We should be able to emit type alias metadata which describes all the 23 //// values, including the defaulted parameters and empty parameter pack. 24 A<int> a; 25 26 // CHECK: !DIDerivedType(tag: DW_TAG_template_alias, name: "A", file: ![[#]], line: [[#]], baseType: ![[baseType:[0-9]+]], extraData: ![[extraData:[0-9]+]]) 27 // CHECK: ![[baseType]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X", 28 // CHECK: ![[int:[0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 29 // CHECK: ![[extraData]] = !{![[NonDefault:[0-9]+]]} 30 // CHECK: ![[NonDefault]] = !DITemplateTypeParameter(name: "NonDefault", type: ![[int]]) 31 32 //// FIXME: Ideally, we would describe the deafulted args, like this: 33 // : ![[extraData]] = !{![[NonDefault:[0-9]+]], ![[T:[0-9]+]], ![[I:[0-9]+]], ![[Ts:[0-9]+]]} 34 // : ![[NonDefault]] = !DITemplateTypeParameter(name: "NonDefault", type: ![[int]]) 35 // : ![[T]] = !DITemplateValueParameter(tag: DW_TAG_GNU_template_template_param, name: "T", defaulted: true, value: !"Y") 36 // : ![[I]] = !DITemplateValueParameter(name: "I", type: ![[int]], defaulted: true, value: i32 5) 37 // : ![[Ts]] = !DITemplateValueParameter(tag: DW_TAG_GNU_template_parameter_pack, name: "Ts", value: ![[types:[0-9]+]]) 38 // : ![[types]] = !{} 39