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1; RUN: llc -filetype=obj -mtriple=powerpc64le-unknown-linux-gnu < %s | \2; RUN: llvm-dwarfdump -debug-info - | FileCheck %s3; RUN: llc -filetype=obj -mtriple=powerpc64le-unknown-linux-gnu \4; RUN: -strict-dwarf=true < %s | llvm-dwarfdump -debug-info - | \5; RUN: FileCheck %s -check-prefix=STRICT6 7; We also check that with/without -strict-dwarf=true, the location attribute8; is not changed. The location attribute adding will call DwarfUnit::addUInt()9; which contains a attribute 0, we want to make sure the strict-dwarf handling10; is also right for attribute 0.11; For this case, the location attribute adding is for global variable @_ZL3var12; and the call chain to addUInt() is:13; 1: DwarfCompileUnit::addLocationAttribute()14; 2: DwarfUnit::addOpAddress()15; 3: DwarfUnit::addUInt()16; 4: addUInt(Block, (dwarf::Attribute)0, Form, Integer);17 18; CHECK: DW_AT_name ("var")19; CHECK-NOT: DW_TAG_20; CHECK: DW_AT_alignment21; CHECK: DW_AT_location (DW_OP_addr 0x0)22; CHECK: DW_AT_noreturn23;24; STRICT: DW_AT_name ("var")25; STRICT-NOT: DW_AT_alignment26; STRICT-NOT: DW_TAG_27; STRICT: DW_AT_location (DW_OP_addr 0x0)28; STRICT-NOT: DW_AT_noreturn29 30@_ZL3var = internal global i32 0, align 16, !dbg !031 32; Function Attrs: noinline noreturn optnone uwtable mustprogress33define dso_local void @_Z1fv() #0 !dbg !12 {34entry:35 call void @_Z4exitv(), !dbg !1536 ret void, !dbg !1637}38 39declare void @_Z4exitv()40 41; Function Attrs: noinline nounwind optnone uwtable mustprogress42define dso_local signext i32 @_Z3foov() !dbg !17 {43entry:44 %0 = load i32, ptr @_ZL3var, align 16, !dbg !2145 ret i32 %0, !dbg !2246}47 48!llvm.dbg.cu = !{!2}49!llvm.module.flags = !{!7, !8, !9, !10}50!llvm.ident = !{!11}51 52!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())53!1 = distinct !DIGlobalVariable(name: "var", linkageName: "_ZL3var", scope: !2, file: !3, line: 2, type: !6, isLocal: true, isDefinition: true, align: 128)54!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)55!3 = !DIFile(filename: "t.cpp", directory: "./")56!4 = !{}57!5 = !{!0}58!6 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)59!7 = !{i32 7, !"Dwarf Version", i32 4}60!8 = !{i32 2, !"Debug Info Version", i32 3}61!9 = !{i32 1, !"wchar_size", i32 4}62!10 = !{i32 7, !"uwtable", i32 1}63!11 = !{!"clang version 13.0.0"}64!12 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", scope: !3, file: !3, line: 4, type: !13, scopeLine: 4, flags: DIFlagPrototyped | DIFlagNoReturn, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4)65!13 = !DISubroutineType(types: !14)66!14 = !{null}67!15 = !DILocation(line: 5, column: 1, scope: !12)68!16 = !DILocation(line: 7, column: 1, scope: !12)69!17 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !3, file: !3, line: 10, type: !18, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4)70!18 = !DISubroutineType(types: !19)71!19 = !{!20}72!20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)73!21 = !DILocation(line: 12, column: 18, scope: !17)74!22 = !DILocation(line: 12, column: 11, scope: !17)75