1; Check that ODR type uniquing does not create invalid debug metadata. 2; RUN: split-file %s %t 3; RUN: llvm-link -S -o - %t/a.ll %t/b.ll 2>&1 | FileCheck %s 4 5; CHECK-DAG: distinct !DICompileUnit({{.*}}, enums: ![[ENUMLIST:[0-9]+]], 6; CHECK-DAG: ![[ENUMLIST]] = !{![[ENUM:[0-9]+]]} 7; CHECK-DAG: ![[ENUM]] = distinct !DICompositeType(tag: DW_TAG_enumeration_type, {{.*}}, identifier: "_ZTS5Stage" 8 9; CHECK-DAG: distinct !DICompileUnit({{.*}}, retainedTypes: ![[RETAIN:[0-9]+]], 10; CHECK-DAG: ![[RETAIN]] = !{![[VAR:[0-9]+]]} 11; CHECK-DAG: ![[CLASS:[0-9]+]] = distinct !DICompositeType(tag: DW_TAG_class_type, {{.*}}, identifier: "_ZTS5Stage" 12; CHECK-DAG: ![[VAR]] = !DIDerivedType(tag: DW_TAG_member, name: "Var", scope: ![[CLASS]], 13 14; CHECK-NOT: enum type is not a scope; check enum type ODR violation 15 16;--- a.ll 17target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 18target triple = "x86_64-unknown-linux-gnu" 19 20!llvm.dbg.cu = !{!0} 21!llvm.module.flags = !{!9} 22 23!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang", isOptimized: true, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 24!1 = !DIFile(filename: "a.cpp", directory: "file") 25!2 = !{!3} 26!3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Stage", file: !1, line: 3, baseType: !4, size: 32, elements: !5, identifier: "_ZTS5Stage") 27!4 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) 28!5 = !{!6} 29!6 = !DIEnumerator(name: "A1", value: 0, isUnsigned: true) 30!9 = !{i32 2, !"Debug Info Version", i32 3} 31 32 33;--- b.ll 34target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 35target triple = "x86_64-unknown-linux-gnu" 36 37!llvm.dbg.cu = !{!2} 38!llvm.module.flags = !{!11} 39 40!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang", isOptimized: true, emissionKind: FullDebug, retainedTypes: !10, splitDebugInlining: false, nameTableKind: None) 41!3 = !DIFile(filename: "b.cpp", directory: "file") 42!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 43!6 = !DIDerivedType(tag: DW_TAG_member, name: "Var", scope: !8, file: !3, line: 5, baseType: !5, flags: DIFlagStaticMember) 44!8 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "Stage", file: !3, line: 3, size: 64, flags: DIFlagTypePassByValue, elements: !9, identifier: "_ZTS5Stage") 45!9 = !{!6} 46!10 = !{!6} 47!11 = !{i32 2, !"Debug Info Version", i32 3} 48