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1; Round-trip test for the following program:2; ```3; enum E0 { A0 = -2147483648, B0 = 2147483647 } x0;4; enum E1 : signed int { A1 = -2147483648, B1 = 2147483647 } x1;5; enum E2 : signed long long { A2 = -9223372036854775807LL - 1,6; B2 = 9223372036854775807LL } x2;7; enum E3 : unsigned long long { A3 = 0x8000000000000000ULL } x3;8; ```9; Test FixedEnum flag presence/absence, the underlying integer type and10; enumerator values (signed and unsigned, and extreme cases) all survive through11; the round-trip.12 13; RUN: llvm-as %s -o - | llvm-dis | llvm-as | llvm-dis | FileCheck %s14 15@x0 = global i32 0, align 4, !dbg !016@x1 = global i32 0, align 4, !dbg !2417@x2 = global i64 0, align 8, !dbg !2618@x3 = global i64 0, align 8, !dbg !2819 20!llvm.dbg.cu = !{!2}21!llvm.module.flags = !{!30, !31, !32}22!llvm.ident = !{!33}23 24!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())25!1 = distinct !DIGlobalVariable(name: "x0", scope: !2, file: !3, line: 1, type: !5, isLocal: false, isDefinition: true)26!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 (/data/src/llvm/tools/clang 697b0cb4c2e712a28767c2f7fe50c90bae7255f5) (/data/src/llvm 5ba8dcca7470b5da405bc92b9681b1f36e5d6772)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !23)27!3 = !DIFile(filename: "e.cc", directory: "/work/build/clang-dev")28!4 = !{!5, !10, !14, !19}29 30 31!5 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "E0", file: !3, line: 1, baseType: !6, size: 32, elements: !7, identifier: "_ZTS2E0")32; CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "E0"{{.*}}, baseType: ![[INT:[0-9]+]]33; CHECK-NOT: FixedEnum34!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)35; CHECK: ![[INT]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)36!7 = !{!8, !9}37!8 = !DIEnumerator(name: "A0", value: -2147483648)38!9 = !DIEnumerator(name: "B0", value: 2147483647)39; CHECK: !DIEnumerator(name: "A0", value: -2147483648)40; CHECK: !DIEnumerator(name: "B0", value: 2147483647)41 42 43!10 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "E1", file: !3, line: 3, baseType: !6, size: 32, flags: DIFlagEnumClass, elements: !11, identifier: "_ZTS2E1")44; CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "E1"{{.*}}, baseType: ![[INT]]45; CHECK-SAME: DIFlagEnumClass46!11 = !{!12, !13}47!12 = !DIEnumerator(name: "A1", value: -2147483648)48!13 = !DIEnumerator(name: "B1", value: 2147483647)49; CHECK: !DIEnumerator(name: "A1", value: -2147483648)50; CHECK: !DIEnumerator(name: "B1", value: 2147483647)51 52 53!14 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "E2", file: !3, line: 5, baseType: !15, size: 64, flags: DIFlagEnumClass, elements: !16, identifier: "_ZTS2E2")54; CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "E2"{{.*}}, baseType: ![[LONG:[0-9]+]]55; CHECK-SAME: DIFlagEnumClass56!15 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)57; CHECK: ![[LONG]] = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)58!16 = !{!17, !18}59!17 = !DIEnumerator(name: "A2", value: -9223372036854775808)60!18 = !DIEnumerator(name: "B2", value: 9223372036854775807)61; CHECK: !DIEnumerator(name: "A2", value: -9223372036854775808)62; CHECK: !DIEnumerator(name: "B2", value: 9223372036854775807)63 64 65!19 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "E3", file: !3, line: 7, baseType: !20, size: 64, flags: DIFlagEnumClass, elements: !21, identifier: "_ZTS2E3")66; CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "E3"{{.*}}, baseType: ![[ULONG:[0-9]+]]67; CHECK-SAME: DIFlagEnumClass68!20 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)69; CHECK: ![[ULONG]] = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)70!21 = !{!22}71!22 = !DIEnumerator(name: "A3", value: 9223372036854775808, isUnsigned: true)72; CHECK: !DIEnumerator(name: "A3", value: 9223372036854775808, isUnsigned: true)73 74 75!23 = !{!0, !24, !26, !28}76!24 = !DIGlobalVariableExpression(var: !25, expr: !DIExpression())77!25 = distinct !DIGlobalVariable(name: "x1", scope: !2, file: !3, line: 3, type: !10, isLocal: false, isDefinition: true)78!26 = !DIGlobalVariableExpression(var: !27, expr: !DIExpression())79!27 = distinct !DIGlobalVariable(name: "x2", scope: !2, file: !3, line: 5, type: !14, isLocal: false, isDefinition: true)80!28 = !DIGlobalVariableExpression(var: !29, expr: !DIExpression())81!29 = distinct !DIGlobalVariable(name: "x3", scope: !2, file: !3, line: 7, type: !19, isLocal: false, isDefinition: true)82!30 = !{i32 2, !"Dwarf Version", i32 4}83!31 = !{i32 2, !"Debug Info Version", i32 3}84!32 = !{i32 1, !"wchar_size", i32 4}85!33 = !{!"clang version 7.0.0 (/data/src/llvm/tools/clang 697b0cb4c2e712a28767c2f7fe50c90bae7255f5) (/data/src/llvm 5ba8dcca7470b5da405bc92b9681b1f36e5d6772)"}86