xref: /llvm-project/clang/test/CodeGenCXX/template-alias.cpp (revision e772a268ef75332b72dd9b9ca0341a6af8b0db72)
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 --check-prefixes=ALIAS-SIMPLE,ALIAS-ALL
3 
4 // RUN: %clang_cc1 -triple x86_64-unk-unk -o - -emit-llvm -debug-info-kind=standalone -gtemplate-alias %s -gsimple-template-names=mangled \
5 // RUN: | FileCheck %s --check-prefixes=ALIAS-MANGLED,ALIAS-ALL
6 
7 // RUN: %clang_cc1 -triple x86_64-unk-unk -o - -emit-llvm -debug-info-kind=standalone -gtemplate-alias %s  \
8 // RUN: | FileCheck %s --check-prefixes=ALIAS-FULL,ALIAS-ALL
9 
10 // RUN: %clang_cc1 -triple x86_64-unk-unk -o - -emit-llvm -debug-info-kind=standalone  %s \
11 // RUN: | FileCheck %s --check-prefixes=TYPEDEF
12 
13 
14 //// Check that -gtemplate-alias causes DW_TAG_template_alias emission for
15 //// template aliases, and that respects gsimple-template-names.
16 ////
17 //// Test type and value template parameters.
18 
19 template<typename Y, int Z>
20 struct X {
21   Y m1 = Z;
22 };
23 
24 template<typename B, int C>
25 using A = X<B, C>;
26 
27 A<int, 5> a;
28 
29 
30 // ALIAS-SIMPLE: !DIDerivedType(tag: DW_TAG_template_alias, name: "A", file: ![[#]], line: [[#]], baseType: ![[baseType:[0-9]+]], extraData: ![[extraData:[0-9]+]])
31 // ALIAS-SIMPLE: ![[baseType]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X",
32 
33 // FIXME: Mangled name is wrong (not a regression).
34 // ALIAS-MANGLED: !DIDerivedType(tag: DW_TAG_template_alias, name: "A<int, 5>", file: ![[#]], line: [[#]], baseType: ![[baseType:[0-9]+]], extraData: ![[extraData:[0-9]+]])
35 // ALIAS-MANGLED: ![[baseType]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "_STN|X|<int, 5>",
36 
37 // ALIAS-FULL: !DIDerivedType(tag: DW_TAG_template_alias, name: "A<int, 5>", file: ![[#]], line: [[#]], baseType: ![[baseType:[0-9]+]], extraData: ![[extraData:[0-9]+]])
38 // ALIAS-FULL: ![[baseType]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X<int, 5>",
39 
40 // ALIAS-ALL: ![[int:[0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
41 // ALIAS-ALL: ![[extraData]] = !{![[B:[0-9]+]], ![[C:[0-9]+]]}
42 // ALIAS-ALL: ![[B]] = !DITemplateTypeParameter(name: "B", type: ![[int]])
43 // ALIAS-ALL: ![[C]] = !DITemplateValueParameter(name: "C", type: ![[int]], value: i32 5)
44 
45 // TYPEDEF: !DIDerivedType(tag: DW_TAG_typedef, name: "A<int, 5>", file: ![[#]], line: [[#]], baseType: ![[baseType:[0-9]+]])
46 // TYPEDEF: ![[baseType]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X<int, 5>",
47 // TYPEDEF: ![[int:[0-9]+]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
48