diff options
Diffstat (limited to 'llvm/test/DebugInfo/Generic/varargs.ll')
| -rw-r--r-- | llvm/test/DebugInfo/Generic/varargs.ll | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/Generic/varargs.ll b/llvm/test/DebugInfo/Generic/varargs.ll new file mode 100644 index 00000000000..1b5a921ad53 --- /dev/null +++ b/llvm/test/DebugInfo/Generic/varargs.ll @@ -0,0 +1,101 @@ +; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s +; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s +; REQUIRES: object-emission +; +; 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 { + %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()), !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: 0, file: !1, enums: !2, retainedTypes: !3, subprograms: !13, 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: !"_ZTS1A", 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: !"_ZTS1A") +!10 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) +!13 = !{!14} +!14 = distinct !DISubprogram(name: "b", linkageName: "_Z1biz", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 13, file: !1, scope: !15, type: !16, function: void (i32, ...)* @_Z1biz, variables: !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) +!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) |
