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 49 define 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 62 declare void @llvm.dbg.declare(metadata, metadata) #1 63 64 attributes #0 = { nounwind ssp uwtable } 65 attributes #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
