| ; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s |
| ; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %s |
| ; |
| ; Test debug info for variadic function arguments. |
| ; Created from tools/clang/tests/CodeGenCXX/debug-info-varargs.cpp |
| ; |
| ; The ... parameter of variadic should be emitted as |
| ; DW_TAG_unspecified_parameters. |
| ; |
| ; Normal variadic function. |
| ; void b(int c, ...); |
| ; |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name ("a") |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_unspecified_parameters |
| ; |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name ("b") |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_unspecified_parameters |
| ; |
| ; Variadic C++ member function. |
| ; struct A { void a(int c, ...); } |
| ; |
| ; Variadic function pointer. |
| ; void (*fptr)(int, ...); |
| ; |
| ; CHECK: DW_TAG_subroutine_type |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_unspecified_parameters |
| ; |
| ; ModuleID = 'llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp' |
| |
| %struct.A = type { i8 } |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define void @_Z1biz(i32 %c, ...) #0 !dbg !14 { |
| %1 = alloca i32, align 4 |
| %a = alloca %struct.A, align 1 |
| %fptr = alloca void (i32, ...)*, align 8 |
| store i32 %c, i32* %1, align 4 |
| call void @llvm.dbg.declare(metadata i32* %1, metadata !21, metadata !DIExpression()), !dbg !22 |
| call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !23, metadata !DIExpression()), !dbg !24 |
| call void @llvm.dbg.declare(metadata void (i32, ...)** %fptr, metadata !25, metadata !DIExpression(DW_OP_deref)), !dbg !27 |
| store void (i32, ...)* @_Z1biz, void (i32, ...)** %fptr, align 8, !dbg !27 |
| ret void, !dbg !28 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind ssp uwtable } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!18, !19} |
| !llvm.ident = !{!20} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp", directory: "radar/13690847") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 3, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS1A") |
| !5 = !{!6} |
| !6 = !DISubprogram(name: "a", linkageName: "_ZN1A1aEiz", line: 6, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !4, type: !7) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null, !9, !10, null} |
| !9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) |
| !10 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !14 = distinct !DISubprogram(name: "b", linkageName: "_Z1biz", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 13, file: !1, scope: !15, type: !16, retainedNodes: !2) |
| !15 = !DIFile(filename: "llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp", directory: "radar/13690847") |
| !16 = !DISubroutineType(types: !17) |
| !17 = !{null, !10, null} |
| !18 = !{i32 2, !"Dwarf Version", i32 2} |
| !19 = !{i32 1, !"Debug Info Version", i32 3} |
| !20 = !{!"clang version 3.5 "} |
| !21 = !DILocalVariable(name: "c", line: 13, arg: 1, scope: !14, file: !15, type: !10) |
| !22 = !DILocation(line: 13, scope: !14) |
| !23 = !DILocalVariable(name: "a", line: 16, scope: !14, file: !15, type: !4) |
| !24 = !DILocation(line: 16, scope: !14) |
| ; Manually modifed to avoid dependence on pointer size |
| !25 = !DILocalVariable(name: "fptr", line: 18, scope: !14, file: !15, type: !26) |
| !26 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !16) |
| !27 = !DILocation(line: 18, scope: !14) |
| !28 = !DILocation(line: 22, scope: !14) |