diff options
Diffstat (limited to 'llvm/test/DebugInfo/extradata-node-reference.ll')
| -rw-r--r-- | llvm/test/DebugInfo/extradata-node-reference.ll | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/extradata-node-reference.ll b/llvm/test/DebugInfo/extradata-node-reference.ll new file mode 100644 index 0000000..0ec9312 --- /dev/null +++ b/llvm/test/DebugInfo/extradata-node-reference.ll @@ -0,0 +1,101 @@ +;; Test verifies that node reference in the extraData field are handled correctly +;; when used with tags like DW_TAG_member, DW_TAG_inheritance etc. + +; REQUIRES: object-emission +; RUN: %llc_dwarf %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s +; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s -check-prefix=CHECK-IR +; RUN: verify-uselistorder %s + +; Example 1: BitField with storage offset (extraData: i64 0) +%struct.BitField = type { i8 } +@bf = global %struct.BitField zeroinitializer, !dbg !9 + +; Example 2: Static member with constant value (extraData: i32 42) +%struct.Static = type { i32 } +@st = global %struct.Static zeroinitializer, !dbg !16 + +; Example 3: Discriminant value for variant (extraData: i32 100) +%union.Variant = type { [8 x i8] } +@var = global %union.Variant zeroinitializer, !dbg !24 + +; Example 4: Inheritance VBPtr offset (extraData: i32 0) +%class.Derived = type { i32 } +@der = global %class.Derived zeroinitializer, !dbg !35 + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!2, !3, !4} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 11.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !8) +!1 = !DIFile(filename: "test.cpp", directory: ".") +!2 = !{i32 2, !"Debug Info Version", i32 3} +!3 = !{i32 1, !"wchar_size", i32 4} +!4 = !{i32 2, !"Dwarf Version", i32 5} +!8 = !{!9, !16, !24, !35} + +; extraData node definitions +!15 = !{i64 0} ; BitField storage offset +!22 = !{i32 42} ; Static member constant value +!33 = !{i32 100} ; Discriminant value +!41 = !{i32 0} ; VBPtr offset + +; CHECK-IR: !9 = !DIDerivedType(tag: DW_TAG_member, name: "const_val", scope: !7, file: !3, line: 11, baseType: !10, flags: DIFlagStaticMember, extraData: !12) +; CHECK-IR: !12 = !{i32 42} +; CHECK-IR: !20 = !DIDerivedType(tag: DW_TAG_member, name: "variant_some", scope: !17, file: !3, baseType: !11, size: 32, extraData: !21) +; CHECK-IR: !21 = !{i32 100} +; CHECK-IR: !27 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !25, baseType: !28, extraData: !29) +; CHECK-IR: !29 = !{i32 0} +; CHECK-IR: !32 = !DIDerivedType(tag: DW_TAG_member, name: "field", scope: !30, file: !3, line: 6, baseType: !11, size: 3, flags: DIFlagBitField, extraData: !33) +; CHECK-IR: !33 = !{i64 0} + +; CHECK: {{.*}} DW_TAG_variable +; CHECK: {{.*}} DW_AT_name ("bf") +; CHECK: {{.*}} DW_TAG_member +; CHECK: {{.*}} DW_AT_name ("field") +; === BitField: extraData holds storage offset === +!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression()) +!10 = distinct !DIGlobalVariable(name: "bf", scope: !0, file: !1, line: 5, type: !11, isLocal: false, isDefinition: true) +!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "BitField", file: !1, line: 5, size: 8, elements: !12) +!12 = !{!13} +!13 = !DIDerivedType(tag: DW_TAG_member, name: "field", scope: !11, file: !1, line: 6, baseType: !14, size: 3, flags: DIFlagBitField, extraData: !15) +!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) + +; CHECK: {{.*}} DW_TAG_variable +; CHECK: {{.*}} DW_AT_name ("st") +; CHECK: {{.*}} DW_TAG_member +; CHECK: {{.*}} DW_AT_name ("const_val") +; CHECK: {{.*}} DW_AT_const_value (42) +; === Static Member: extraData holds constant value === +!16 = !DIGlobalVariableExpression(var: !17, expr: !DIExpression()) +!17 = distinct !DIGlobalVariable(name: "st", scope: !0, file: !1, line: 10, type: !18, isLocal: false, isDefinition: true) +!18 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Static", file: !1, line: 10, size: 32, elements: !19) +!19 = !{!20} +!20 = !DIDerivedType(tag: DW_TAG_member, name: "const_val", scope: !18, file: !1, line: 11, baseType: !21, flags: DIFlagStaticMember, extraData: !22) +!21 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !14) + +; CHECK: {{.*}} DW_TAG_variable +; CHECK: {{.*}} DW_AT_name ("var") +; CHECK: {{.*}} DW_TAG_member +; CHECK: {{.*}} DW_AT_name ("variant_none") +; CHECK: {{.*}} DW_AT_discr_value (0x64) +; === Discriminant: extraData holds discriminant value === +!24 = !DIGlobalVariableExpression(var: !25, expr: !DIExpression()) +!25 = distinct !DIGlobalVariable(name: "var", scope: !0, file: !1, line: 15, type: !26, isLocal: false, isDefinition: true) +!26 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Variant", file: !1, line: 15, size: 128, elements: !27) +!27 = !{!28} +!28 = !DICompositeType(tag: DW_TAG_variant_part, scope: !26, file: !1, size: 128, elements: !29, discriminator: !30) +!29 = !{!31, !32} +!30 = !DIDerivedType(tag: DW_TAG_member, scope: !28, file: !1, baseType: !14, size: 32, align: 32, flags: DIFlagArtificial) +!31 = !DIDerivedType(tag: DW_TAG_member, name: "variant_none", scope: !28, file: !1, baseType: !14, size: 32) +!32 = !DIDerivedType(tag: DW_TAG_member, name: "variant_some", scope: !28, file: !1, baseType: !14, size: 32, extraData: !33) + +; CHECK: {{.*}} DW_TAG_variable +; CHECK: {{.*}} DW_AT_name ("der") +; CHECK: {{.*}} DW_TAG_inheritance +; CHECK: {{.*}} DW_AT_type ({{.*}} "Base") +; === Inheritance: extraData holds VBPtr offset === +!35 = !DIGlobalVariableExpression(var: !36, expr: !DIExpression()) +!36 = distinct !DIGlobalVariable(name: "der", scope: !0, file: !1, line: 20, type: !37, isLocal: false, isDefinition: true) +!37 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Derived", file: !1, line: 20, size: 32, elements: !38) +!38 = !{!39} +!39 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !37, baseType: !40, extraData: !41) +!40 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Base", file: !1, line: 19, size: 32) |