1; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s 2; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s 3; REQUIRES: object-emission 4; 5; Test debug info for variadic function arguments. 6; Created from tools/clang/tests/CodeGenCXX/debug-info-varargs.cpp 7; 8; The ... parameter of variadic should be emitted as 9; DW_TAG_unspecified_parameters. 10; 11; Normal variadic function. 12; void b(int c, ...); 13; 14; CHECK: DW_TAG_subprogram 15; CHECK-NOT: DW_TAG 16; CHECK: DW_AT_name {{.*}} "a" 17; CHECK-NOT: DW_TAG 18; CHECK: DW_TAG_formal_parameter 19; CHECK-NOT: DW_TAG 20; CHECK: DW_TAG_formal_parameter 21; CHECK-NOT: DW_TAG 22; CHECK: DW_TAG_unspecified_parameters 23; 24; CHECK: DW_TAG_subprogram 25; CHECK-NOT: DW_TAG 26; CHECK: DW_AT_name {{.*}} "b" 27; CHECK-NOT: DW_TAG 28; CHECK: DW_TAG_formal_parameter 29; CHECK-NOT: DW_TAG 30; CHECK: DW_TAG_unspecified_parameters 31; 32; Variadic C++ member function. 33; struct A { void a(int c, ...); } 34; 35; Variadic function pointer. 36; void (*fptr)(int, ...); 37; 38; CHECK: DW_TAG_subroutine_type 39; CHECK-NOT: DW_TAG 40; CHECK: DW_TAG_formal_parameter 41; CHECK-NOT: DW_TAG 42; CHECK: DW_TAG_unspecified_parameters 43; 44; ModuleID = 'llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp' 45 46%struct.A = type { i8 } 47 48; Function Attrs: nounwind ssp uwtable 49define void @_Z1biz(i32 %c, ...) #0 { 50 %1 = alloca i32, align 4 51 %a = alloca %struct.A, align 1 52 %fptr = alloca void (i32, ...)*, align 8 53 store i32 %c, i32* %1, align 4 54 call void @llvm.dbg.declare(metadata !{i32* %1}, metadata !21), !dbg !22 55 call void @llvm.dbg.declare(metadata !{%struct.A* %a}, metadata !23), !dbg !24 56 call void @llvm.dbg.declare(metadata !{void (i32, ...)** %fptr}, metadata !25), !dbg !27 57 store void (i32, ...)* @_Z1biz, void (i32, ...)** %fptr, align 8, !dbg !27 58 ret void, !dbg !28 59} 60 61; Function Attrs: nounwind readnone 62declare void @llvm.dbg.declare(metadata, metadata) #1 63 64attributes #0 = { nounwind ssp uwtable } 65attributes #1 = { nounwind readnone } 66 67!llvm.dbg.cu = !{!0} 68!llvm.module.flags = !{!18, !19} 69!llvm.ident = !{!20} 70 71!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !13, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp] [DW_LANG_C_plus_plus] 72!1 = metadata !{metadata !"llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp", metadata !"radar/13690847"} 73!2 = metadata !{} 74!3 = metadata !{metadata !4} 75!4 = metadata !{i32 786451, metadata !1, null, metadata !"A", i32 3, i64 8, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ] 76!5 = metadata !{metadata !6} 77!6 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1A", metadata !"a", metadata !"a", metadata !"_ZN1A1aEiz", i32 6, metadata !7, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !12, i32 6} ; [ DW_TAG_subprogram ] [line 6] [a] 78!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 79!8 = metadata !{null, metadata !9, metadata !10, metadata !11} 80!9 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A] 81!10 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] 82!11 = metadata !{i32 786456} 83!12 = metadata !{i32 786468} 84!13 = metadata !{metadata !14} 85!14 = metadata !{i32 786478, metadata !1, metadata !15, metadata !"b", metadata !"b", metadata !"_Z1biz", i32 13, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32, ...)* @_Z1biz, null, null, metadata !2, i32 13} ; [ DW_TAG_subprogram ] [line 13] [def] [b] 86!15 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp] 87!16 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !17, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 88!17 = metadata !{null, metadata !10, metadata !11} 89!18 = metadata !{i32 2, metadata !"Dwarf Version", i32 2} 90!19 = metadata !{i32 1, metadata !"Debug Info Version", i32 1} 91!20 = metadata !{metadata !"clang version 3.5 "} 92!21 = metadata !{i32 786689, metadata !14, metadata !"c", metadata !15, i32 16777229, metadata !10, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [c] [line 13] 93!22 = metadata !{i32 13, i32 0, metadata !14, null} 94!23 = metadata !{i32 786688, metadata !14, metadata !"a", metadata !15, i32 16, metadata !4, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [a] [line 16] 95!24 = metadata !{i32 16, i32 0, metadata !14, null} 96!25 = metadata !{i32 786688, metadata !14, metadata !"fptr", metadata !15, i32 18, metadata !26, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [fptr] [line 18] 97!26 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ] 98!27 = metadata !{i32 18, i32 0, metadata !14, null} 99!28 = metadata !{i32 22, i32 0, metadata !14, null} 100