1; RUN: llc < %s -filetype=obj -o %t
2; RUN: llvm-dwarfdump %t | FileCheck %s
3
4; C++ source to regenerate:
5; $ cat t.cpp
6; struct A {
7;   void thiscallcc();
8; };
9; void A::thiscallcc() {}
10; void cdeclcc() {}
11; void __fastcall fastcallcc() {}
12; void __stdcall stdcallcc() {}
13; void __vectorcall vectorcallcc() {}
14; $ clang -g t.cpp -emit-llvm -S -o t.ll -O1
15
16; CHECK: .debug_abbrev contents:
17
18; CHECK: [[subroutine_abbrev:\[[0-9]+\]]] DW_TAG_subroutine_type      DW_CHILDREN_yes
19; CHECK-NEXT:         DW_AT_type      DW_FORM_ref4
20; CHECK-NEXT:         DW_AT_calling_convention        DW_FORM_data1
21
22; CHECK: .debug_info contents:
23
24; CHECK:  DW_TAG_subroutine_type [[subroutine_abbrev]] *
25; CHECK-NEXT:         DW_AT_type [DW_FORM_ref4]       {{.*}}
26; CHECK-NEXT:         DW_AT_calling_convention [DW_FORM_data1]        (DW_CC_BORLAND_msfastcall)
27
28; CHECK: DW_TAG_subprogram [{{.*}}] *
29; CHECK:                 DW_AT_low_pc
30; CHECK:                 DW_AT_high_pc
31; CHECK:                 DW_AT_frame_base
32; CHECK:                 DW_AT_linkage_name
33; CHECK:                 DW_AT_name
34; CHECK:                 DW_AT_decl_file
35; CHECK:                 DW_AT_decl_line
36; CHECK:                 DW_AT_calling_convention [DW_FORM_data1]        (DW_CC_BORLAND_msfastcall)
37; CHECK:                 DW_AT_type
38; CHECK:                 DW_AT_external
39
40; ModuleID = 't.cpp'
41source_filename = "t.cpp"
42target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
43target triple = "i386-pc-windows-msvc19.0.23918"
44
45@"\01?fptr@@3P6IHHH@ZA" = global i32 (i32, i32)* @"\01?f@@YIHHH@Z", align 4
46
47; Function Attrs: nounwind readnone
48define x86_fastcallcc i32 @"\01?f@@YIHHH@Z"(i32 inreg %a, i32 inreg %b) #0 !dbg !12 {
49entry:
50  tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !14, metadata !16), !dbg !17
51  tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !15, metadata !16), !dbg !18
52  %add = add nsw i32 %b, %a, !dbg !19
53  ret i32 %add, !dbg !20
54}
55
56; Function Attrs: nounwind readnone
57declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
58
59attributes #0 = { nounwind readnone "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
60attributes #1 = { nounwind readnone }
61
62!llvm.dbg.cu = !{!0}
63!llvm.module.flags = !{!9, !10}
64!llvm.ident = !{!11}
65
66!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 272067)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3)
67!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
68!2 = !{}
69!3 = !{!4}
70!4 = distinct !DIGlobalVariable(name: "fptr", linkageName: "\01?fptr@@3P6IHHH@ZA", scope: !0, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, variable: i32 (i32, i32)** @"\01?fptr@@3P6IHHH@ZA")
71!5 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !6, size: 32, align: 32)
72!6 = !DISubroutineType(cc: DW_CC_BORLAND_msfastcall, types: !7)
73!7 = !{!8, !8, !8}
74!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
75!9 = !{i32 2, !"Dwarf Version", i32 4}
76!10 = !{i32 2, !"Debug Info Version", i32 3}
77!11 = !{!"clang version 3.9.0 (trunk 272067)"}
78!12 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YIHHH@Z", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !13)
79!13 = !{!14, !15}
80!14 = !DILocalVariable(name: "b", arg: 2, scope: !12, file: !1, line: 1, type: !8)
81!15 = !DILocalVariable(name: "a", arg: 1, scope: !12, file: !1, line: 1, type: !8)
82!16 = !DIExpression()
83!17 = !DILocation(line: 1, column: 29, scope: !12)
84!18 = !DILocation(line: 1, column: 22, scope: !12)
85!19 = !DILocation(line: 1, column: 43, scope: !12)
86!20 = !DILocation(line: 1, column: 34, scope: !12)
87