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1# RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \2# RUN: | llvm-dwarfdump -v -name=parama - | FileCheck %s3#4# Generated with -O2, llc -stop-after=livedebugvalues, with IR modified from5# this source:6#7# int globa, globb;8# void ext();9# static void set(int parama, int paramb) {10# globa = parama;11# globb = paramb;12# }13# void funone(int one, int two) {14# two = two + one;15# // 'two = ...' sunk between the inlined assignments to globa and globa.16# set(one, two);17# if (two > 0)18# return ext();19# }20# void funtwo(int one, int two) {21# two = one + two;22# // 'two = ...' sunk between the inlined assignments to globa and globa,23# // and rdi is clobbered by the sunk 'two = ...'.24# set(one, two);25# if (one < two)26# return ext();27# }28#29# Check that the 'parama' is available for the entire inlined scope in funone,30# and that it is unavailable in the second DW_AT_ranges segment of the inlined31# scope in funtwo. In both cases the inlined scope 'set' is intrerrupted by an32# instruction from the calling function.33#34# Except for 'parama', all DILocalVariable metadata has been removed.35#36# Ignore first entry (abstract), we want to look at the concrete instances.37# CHECK: DW_TAG_formal_parameter [38# CHECK: DW_TAG_formal_parameter [39# CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI)40# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "parama"41# CHECK: DW_TAG_formal_parameter [42# CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]43# CHECK-NEXT: [0x{{[0-9a-b]+}}, 0x{{[0-9a-b]+}})44# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "parama"45 46--- |47 target triple = "x86_64-unknown-linux-gnu"48 49 @globa = dso_local local_unnamed_addr global i32 0, align 4, !dbg !050 @globb = dso_local local_unnamed_addr global i32 0, align 4, !dbg !1051 52 declare !dbg !6 dso_local void @ext(...) local_unnamed_addr53 declare void @llvm.dbg.value(metadata, metadata, metadata)54 55 define dso_local void @funone(i32 %one, i32 %two) local_unnamed_addr !dbg !17 {56 entry:57 call void @llvm.dbg.value(metadata i32 %one, metadata !20, metadata !DIExpression()), !dbg !2358 store i32 %one, ptr @globa, align 4, !dbg !2559 %add = add nsw i32 %two, %one, !dbg !3060 store i32 %add, ptr @globb, align 4, !dbg !3161 %cmp = icmp sgt i32 %add, 0, !dbg !3262 br i1 %cmp, label %if.then, label %if.end, !dbg !3463 64 if.then: ; preds = %entry65 tail call void (...) @ext(), !dbg !3566 ret void, !dbg !3667 68 if.end: ; preds = %entry69 ret void, !dbg !3670 }71 72 define dso_local void @funtwo(i32 %one, i32 %two) local_unnamed_addr !dbg !37 {73 entry:74 call void @llvm.dbg.value(metadata i32 %one, metadata !20, metadata !DIExpression()), !dbg !4175 store i32 %one, ptr @globa, align 4, !dbg !4376 %add = add nsw i32 %two, %one, !dbg !4477 store i32 %add, ptr @globb, align 4, !dbg !4578 %cmp = icmp sgt i32 %two, 0, !dbg !4679 br i1 %cmp, label %if.then, label %if.end, !dbg !4880 81 if.then: ; preds = %entry82 tail call void (...) @ext(), !dbg !4983 ret void, !dbg !5084 85 if.end: ; preds = %entry86 ret void, !dbg !5087 }88 89 !llvm.dbg.cu = !{!2}90 !llvm.module.flags = !{!13, !14, !15}91 !llvm.ident = !{!16}92 93 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())94 !1 = distinct !DIGlobalVariable(name: "globa", scope: !2, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true)95 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !9, splitDebugInlining: false, nameTableKind: None)96 !3 = !DIFile(filename: "test.c", directory: "/")97 !4 = !{}98 !5 = !{!6}99 !6 = !DISubprogram(name: "ext", scope: !3, file: !3, line: 17, type: !7, spFlags: DISPFlagOptimized, retainedNodes: !4)100 !7 = !DISubroutineType(types: !8)101 !8 = !{null, null}102 !9 = !{!0, !10}103 !10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression())104 !11 = distinct !DIGlobalVariable(name: "globb", scope: !2, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true)105 !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)106 !13 = !{i32 7, !"Dwarf Version", i32 4}107 !14 = !{i32 2, !"Debug Info Version", i32 3}108 !15 = !{i32 1, !"wchar_size", i32 4}109 !16 = !{!"clang version 11.0.0"}110 !17 = distinct !DISubprogram(name: "funone", scope: !3, file: !3, line: 22, type: !18, scopeLine: 22, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)111 !18 = !DISubroutineType(types: !19)112 !19 = !{null, !12, !12}113 !20 = !DILocalVariable(name: "parama", arg: 1, scope: !21, file: !3, line: 18, type: !12)114 !21 = distinct !DISubprogram(name: "set", scope: !3, file: !3, line: 18, type: !18, scopeLine: 18, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !22)115 !22 = !{!20}116 !23 = !DILocation(line: 0, scope: !21, inlinedAt: !24)117 !24 = distinct !DILocation(line: 24, column: 3, scope: !17)118 !25 = !DILocation(line: 19, column: 9, scope: !21, inlinedAt: !24)119 !30 = !DILocation(line: 23, column: 13, scope: !17)120 !31 = !DILocation(line: 20, column: 9, scope: !21, inlinedAt: !24)121 !32 = !DILocation(line: 25, column: 11, scope: !33)122 !33 = distinct !DILexicalBlock(scope: !17, file: !3, line: 25, column: 7)123 !34 = !DILocation(line: 25, column: 7, scope: !17)124 !35 = !DILocation(line: 26, column: 12, scope: !33)125 !36 = !DILocation(line: 27, column: 1, scope: !17)126 !37 = distinct !DISubprogram(name: "funtwo", scope: !3, file: !3, line: 28, type: !18, scopeLine: 28, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !38)127 !38 = !{}128 !41 = !DILocation(line: 0, scope: !21, inlinedAt: !42)129 !42 = distinct !DILocation(line: 30, column: 3, scope: !37)130 !43 = !DILocation(line: 19, column: 9, scope: !21, inlinedAt: !42)131 !44 = !DILocation(line: 29, column: 13, scope: !37)132 !45 = !DILocation(line: 20, column: 9, scope: !21, inlinedAt: !42)133 !46 = !DILocation(line: 31, column: 11, scope: !47)134 !47 = distinct !DILexicalBlock(scope: !37, file: !3, line: 31, column: 7)135 !48 = !DILocation(line: 31, column: 7, scope: !37)136 !49 = !DILocation(line: 32, column: 12, scope: !47)137 !50 = !DILocation(line: 33, column: 1, scope: !37)138 139...140---141name: funone142body: |143 bb.0.entry:144 successors: %bb.2(0x50000000), %bb.1(0x30000000)145 liveins: $edi, $esi146 147 DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !23148 MOV32mr $rip, 1, $noreg, @globa, $noreg, renamable $edi, debug-location !25 :: (store (s32) into @globa)149 renamable $esi = ADD32rr killed renamable $esi, killed renamable $edi, implicit-def $eflags, debug-location !32150 MOV32mr $rip, 1, $noreg, @globb, $noreg, killed renamable $esi, debug-location !31 :: (store (s32) into @globb)151 JCC_1 %bb.1, 14, implicit $eflags, debug-location !34152 153 bb.2.if.then:154 dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !35155 TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !35156 157 bb.1.if.end:158 RET64 debug-location !36159 160...161---162name: funtwo163body: |164 bb.0.entry:165 successors: %bb.2(0x50000000), %bb.1(0x30000000)166 liveins: $edi, $esi167 168 DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !41169 MOV32mr $rip, 1, $noreg, @globa, $noreg, renamable $edi, debug-location !43 :: (store (s32) into @globa)170 renamable $edi = nsw ADD32rr killed renamable $edi, renamable $esi, implicit-def dead $eflags, debug-location !44171 MOV32mr $rip, 1, $noreg, @globb, $noreg, killed renamable $edi, debug-location !45 :: (store (s32) into @globb)172 TEST32rr killed renamable $esi, renamable $esi, implicit-def $eflags, debug-location !46173 JCC_1 %bb.1, 14, implicit $eflags, debug-location !48174 175 bb.2.if.then:176 dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !49177 TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !49178 179 bb.1.if.end:180 RET64 debug-location !50181 182...183