| # RUN: llc -start-after=livedebugvalues -filetype=obj -o - %s \ |
| # RUN: | llvm-dwarfdump -v - | FileCheck %s |
| |
| # This tests for a crash in DwarfDebug's singular DBG_VALUE range promotion when |
| # encountering an IMPLICIT_DEF in its own lexical scope. |
| |
| # CHECK: .debug_info contents: |
| # CHECK: DW_TAG_formal_parameter |
| # CHECK: DW_AT_const_value [DW_FORM_udata] (0) |
| --- | |
| ; ModuleID = 't.ll' |
| source_filename = "t.ll" |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--linux-gnu" |
| |
| %class.v = type <{ i32, i8, i8, [2 x i8] }> |
| %class.j = type <{ %"class.j<6, a::f>::D", i32, [4 x i8] }> |
| %"class.j<6, a::f>::D" = type { %"class.j<6, a::f>::p" } |
| %"class.j<6, a::f>::p" = type { i64 } |
| |
| @bt = global i32 0, align 4 |
| |
| define void @_ZN1v2bvEv(%class.v* nocapture readonly %this) local_unnamed_addr align 2 !dbg !14 { |
| entry: |
| %bz = alloca %class.j, align 8 |
| %att = alloca %class.j, align 8 |
| %ap = getelementptr inbounds %class.v, %class.v* %this, i64 0, i32 1 |
| %0 = load i8, i8* %ap, align 4 |
| %conv = sext i8 %0 to i32 |
| switch i32 %conv, label %sw.epilog [ |
| i32 1, label %_ZN1jILi6EN1a1fEE1mEj.exit |
| i32 0, label %sw.bb2 |
| ] |
| |
| _ZN1jILi6EN1a1fEE1mEj.exit: ; preds = %entry |
| %1 = bitcast %class.j* %att to i64* |
| %2 = bitcast %class.j* %bz to i64* |
| store i64 1, i64* %2, align 8 |
| call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !18, metadata !23), !dbg !24 |
| store i64 1, i64* %1, align 8, !dbg !27 |
| br label %sw.epilog |
| |
| sw.bb2: ; preds = %entry |
| %3 = bitcast %class.j* %att to i64* |
| %4 = bitcast %class.j* %bz to i64* |
| %.pre = load i64, i64* %3, align 8 |
| %agg.tmp.sroa.2.0..sroa_idx1.i.i.i.i.i.i13.phi.trans.insert = getelementptr inbounds %class.j, %class.j* %bz, i64 0, i32 1 |
| %.phi.trans.insert = bitcast i32* %agg.tmp.sroa.2.0..sroa_idx1.i.i.i.i.i.i13.phi.trans.insert to i64* |
| %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i14.pre = load i64, i64* %.phi.trans.insert, align 8 |
| %.pre25 = load i64, i64* %4, align 8 |
| %agg.tmp.sroa.2.0..sroa_idx1.i.i.i.i.i.i.phi.trans.insert = getelementptr inbounds %class.j, %class.j* %att, i64 0, i32 1 |
| %.phi.trans.insert26 = bitcast i32* %agg.tmp.sroa.2.0..sroa_idx1.i.i.i.i.i.i.phi.trans.insert to i64* |
| %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i.pre = load i64, i64* %.phi.trans.insert26, align 8 |
| br label %sw.epilog |
| |
| sw.epilog: ; preds = %sw.bb2, %_ZN1jILi6EN1a1fEE1mEj.exit, %entry |
| %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i = phi i64 [ %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i.pre, %sw.bb2 ], [ undef, %entry ], [ undef, %_ZN1jILi6EN1a1fEE1mEj.exit ], !dbg !32 |
| %5 = phi i64 [ %.pre25, %sw.bb2 ], [ 0, %entry ], [ 1, %_ZN1jILi6EN1a1fEE1mEj.exit ] |
| %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i14 = phi i64 [ %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i14.pre, %sw.bb2 ], [ undef, %entry ], [ undef, %_ZN1jILi6EN1a1fEE1mEj.exit ] |
| %6 = phi i64 [ %.pre, %sw.bb2 ], [ 0, %entry ], [ 1, %_ZN1jILi6EN1a1fEE1mEj.exit ] |
| %bw1 = bitcast %class.v* %this to i32* |
| %7 = load i32, i32* %bw1, align 4 |
| %bx = getelementptr inbounds %class.v, %class.v* %this, i64 0, i32 2 |
| %8 = load i8, i8* %bx, align 1 |
| %tobool = icmp ne i8 %8, 0 |
| %.fca.0.insert9 = insertvalue [2 x i64] undef, i64 %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i14, 0 |
| %.fca.1.insert12 = insertvalue [2 x i64] %.fca.0.insert9, i64 %5, 1 |
| %.fca.0.insert = insertvalue [2 x i64] undef, i64 %agg.tmp.sroa.2.0.copyload2.i.i6.i.i.i.i, 0 |
| %.fca.1.insert = insertvalue [2 x i64] %.fca.0.insert, i64 %6, 1 |
| call void @_Z2byi1LS_bbPi(i32 %7, [2 x i64] %.fca.1.insert12, [2 x i64] %.fca.1.insert, i1 %tobool, i1 false, i32* nonnull @bt) |
| ret void |
| } |
| |
| declare void @_Z2byi1LS_bbPi(i32, [2 x i64], [2 x i64], i1, i1, i32*) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.stackprotector(i8*, i8**) #1 |
| |
| attributes #0 = { nounwind readnone speculatable } |
| attributes #1 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!12, !13} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 305696) (llvm/trunk 305708)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !2) |
| !1 = !DIFile(filename: "/<stdin>", directory: "/") |
| !2 = !{} |
| !3 = !{!4, !10} |
| !4 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "r", file: !5, line: 50, size: 8, elements: !6, identifier: "_ZTS1r") |
| !5 = !DIFile(filename: "current.ii", directory: "/") |
| !6 = !{!7} |
| !7 = !DISubprogram(name: "r", scope: !4, file: !5, line: 52, type: !8, isLocal: false, isDefinition: false, scopeLine: 52, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{null} |
| !10 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "q", scope: !11, file: !5, line: 39, size: 64, elements: !2, identifier: "_ZTSN1jILi6EN1a1fEE1qE") |
| !11 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "j<6, a::f>", file: !5, line: 7, size: 128, elements: !2, templateParams: !2, identifier: "_ZTS1jILi6EN1a1fEE") |
| !12 = !{i32 2, !"Debug Info Version", i32 3} |
| !13 = !{i32 1, !"wchar_size", i32 4} |
| !14 = distinct !DISubprogram(name: "bv", linkageName: "_ZN1v2bvEv", scope: !15, file: !5, line: 104, type: !16, isLocal: false, isDefinition: true, scopeLine: 104, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !17, retainedNodes: !2) |
| !15 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "v", file: !5, line: 97, size: 64, elements: !2, identifier: "_ZTS1v") |
| !16 = !DISubroutineType(types: !2) |
| !17 = !DISubprogram(name: "bv", linkageName: "_ZN1v2bvEv", scope: !15, file: !5, line: 98, type: !16, isLocal: false, isDefinition: false, scopeLine: 98, flags: DIFlagPrototyped, isOptimized: true) |
| !18 = !DILocalVariable(arg: 2, scope: !19, file: !5, line: 22, type: !21) |
| !19 = distinct !DISubprogram(name: "m", linkageName: "_ZN1jILi6EN1a1fEE1mEj", scope: !11, file: !5, line: 22, type: !16, isLocal: false, isDefinition: true, scopeLine: 22, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !20, retainedNodes: !2) |
| !20 = !DISubprogram(name: "m", linkageName: "_ZN1jILi6EN1a1fEE1mEj", scope: !11, file: !5, line: 22, type: !16, isLocal: false, isDefinition: false, scopeLine: 22, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true) |
| !21 = !DIDerivedType(tag: DW_TAG_typedef, name: "h", file: !5, line: 10, baseType: !22) |
| !22 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) |
| !23 = !DIExpression() |
| !24 = !DILocation(line: 22, scope: !19, inlinedAt: !25) |
| !25 = distinct !DILocation(line: 109, scope: !26) |
| !26 = distinct !DILexicalBlock(scope: !14, file: !5, line: 106) |
| !27 = !DILocation(line: 29, scope: !28, inlinedAt: !31) |
| !28 = distinct !DISubprogram(name: "n", linkageName: "_ZN1jILi6EN1a1fEE1p1nEl", scope: !29, file: !5, line: 29, type: !8, isLocal: false, isDefinition: true, scopeLine: 29, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !30, retainedNodes: !2) |
| !29 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "p", scope: !11, file: !5, line: 26, size: 64, elements: !2, identifier: "_ZTSN1jILi6EN1a1fEE1pE") |
| !30 = !DISubprogram(name: "n", linkageName: "_ZN1jILi6EN1a1fEE1p1nEl", scope: !29, file: !5, line: 29, type: !8, isLocal: false, isDefinition: false, scopeLine: 29, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true) |
| !31 = distinct !DILocation(line: 24, scope: !19, inlinedAt: !25) |
| !32 = !DILocation(line: 61, scope: !33, inlinedAt: !38) |
| !33 = distinct !DISubprogram(name: "bc<j<6, a::f> >", linkageName: "_ZN1s2bcI1jILi6EN1a1fEEEEDTcl2badeclsr1aE2aaIPT_EEEES6_", scope: !34, file: !5, line: 60, type: !16, isLocal: false, isDefinition: true, scopeLine: 60, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !36, declaration: !35, retainedNodes: !2) |
| !34 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s", file: !5, line: 59, size: 8, elements: !2, identifier: "_ZTS1s") |
| !35 = !DISubprogram(name: "bc<j<6, a::f> >", linkageName: "_ZN1s2bcI1jILi6EN1a1fEEEEDTcl2badeclsr1aE2aaIPT_EEEES6_", scope: !34, file: !5, line: 60, type: !16, isLocal: false, isDefinition: false, scopeLine: 60, flags: DIFlagPrototyped, isOptimized: true, templateParams: !36) |
| !36 = !{!37} |
| !37 = !DITemplateTypeParameter(name: "ay", type: !11) |
| !38 = distinct !DILocation(line: 70, scope: !39, inlinedAt: !42) |
| !39 = distinct !DISubprogram(name: "bc", linkageName: "_ZN1JI1s1jILi6EN1a1fEEE2bcEPS4_", scope: !40, file: !5, line: 70, type: !16, isLocal: false, isDefinition: true, scopeLine: 70, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !41, retainedNodes: !2) |
| !40 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "J<s, j<6, a::f> >", file: !5, line: 69, size: 8, elements: !2, templateParams: !2, identifier: "_ZTS1JI1s1jILi6EN1a1fEEE") |
| !41 = !DISubprogram(name: "bc", linkageName: "_ZN1JI1s1jILi6EN1a1fEEE2bcEPS4_", scope: !40, file: !5, line: 70, type: !16, isLocal: false, isDefinition: false, scopeLine: 70, flags: DIFlagPrototyped, isOptimized: true) |
| !42 = distinct !DILocation(line: 85, scope: !43, inlinedAt: !46) |
| !43 = distinct !DISubprogram(name: "u<j<6, a::f> >", linkageName: "_ZN1uC2I1jILi6EN1a1fEEEERT_", scope: !44, file: !5, line: 85, type: !16, isLocal: false, isDefinition: true, scopeLine: 85, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !36, declaration: !45, retainedNodes: !2) |
| !44 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "u", file: !5, line: 82, size: 128, elements: !2, identifier: "_ZTS1u") |
| !45 = !DISubprogram(name: "u<j<6, a::f> >", scope: !44, file: !5, line: 85, type: !16, isLocal: false, isDefinition: false, scopeLine: 85, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true, templateParams: !36) |
| !46 = distinct !DILocation(line: 85, scope: !47, inlinedAt: !48) |
| !47 = distinct !DISubprogram(name: "u<j<6, a::f> >", linkageName: "_ZN1uC1I1jILi6EN1a1fEEEERT_", scope: !44, file: !5, line: 85, type: !16, isLocal: false, isDefinition: true, scopeLine: 85, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !36, declaration: !45, retainedNodes: !2) |
| !48 = distinct !DILocation(line: 92, scope: !49, inlinedAt: !52) |
| !49 = distinct !DISubprogram(name: "L<j<6, a::f> >", linkageName: "_ZN1LC2I1jILi6EN1a1fEEEERT_", scope: !50, file: !5, line: 92, type: !16, isLocal: false, isDefinition: true, scopeLine: 92, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !2, declaration: !51, retainedNodes: !2) |
| !50 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "L", file: !5, line: 88, size: 128, elements: !2, identifier: "_ZTS1L") |
| !51 = !DISubprogram(name: "L<j<6, a::f> >", scope: !50, file: !5, line: 92, type: !16, isLocal: false, isDefinition: false, scopeLine: 92, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true, templateParams: !2) |
| !52 = distinct !DILocation(line: 92, scope: !53, inlinedAt: !54) |
| !53 = distinct !DISubprogram(name: "L<j<6, a::f> >", linkageName: "_ZN1LC1I1jILi6EN1a1fEEEERT_", scope: !50, file: !5, line: 92, type: !16, isLocal: false, isDefinition: true, scopeLine: 92, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !2, declaration: !51, retainedNodes: !2) |
| !54 = distinct !DILocation(line: 114, scope: !14) |
| |
| ... |
| --- |
| name: _ZN1v2bvEv |
| alignment: 2 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| tracksRegLiveness: true |
| registers: |
| liveins: |
| - { reg: '$x0', virtual-reg: '' } |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 48 |
| offsetAdjustment: 0 |
| maxAlignment: 16 |
| adjustsStack: true |
| hasCalls: true |
| stackProtector: '' |
| maxCallFrameSize: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: |
| stack: |
| - { id: 0, name: bz, type: default, offset: -32, size: 16, alignment: 8, |
| callee-saved-register: '', local-offset: -16, debug-info-variable: '', |
| debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, name: att, type: default, offset: -48, size: 16, alignment: 8, |
| callee-saved-register: '', local-offset: -32, debug-info-variable: '', |
| debug-info-expression: '', debug-info-location: '' } |
| - { id: 2, name: '', type: spill-slot, offset: -16, size: 8, alignment: 16, |
| callee-saved-register: '$lr', debug-info-variable: '', |
| debug-info-expression: '', debug-info-location: '' } |
| constants: |
| body: | |
| bb.0.entry: |
| successors: %bb.3.sw.bb2(0x2aaaaaab), %bb.1.entry(0x55555555) |
| liveins: $x0, $lr |
| |
| $sp = frame-setup SUBXri $sp, 48, 0 |
| frame-setup STRXui killed $lr, $sp, 4 :: (store 8 into %stack.2) |
| frame-setup CFI_INSTRUCTION def_cfa_offset 48 |
| frame-setup CFI_INSTRUCTION offset $w30, -16 |
| $w8 = LDRSBWui $x0, 4 :: (load 1 from %ir.ap, align 4) |
| CBZW $w8, %bb.3.sw.bb2 |
| |
| bb.1.entry: |
| successors: %bb.2._ZN1jILi6EN1a1fEE1mEj.exit(0x40000001), %bb.4(0x3fffffff) |
| liveins: $w8, $x0 |
| |
| dead $wzr = SUBSWri killed $w8, 1, 0, implicit-def $nzcv |
| Bcc 1, %bb.4, implicit $nzcv |
| |
| bb.2._ZN1jILi6EN1a1fEE1mEj.exit: |
| successors: %bb.5.sw.epilog(0x80000000) |
| liveins: $x0 |
| |
| $w2 = ORRWri $wzr, 0, implicit-def $x2 |
| $x3 = IMPLICIT_DEF debug-location !32 |
| $x1 = IMPLICIT_DEF |
| STRXui $x2, $sp, 2 :: (store 8 into %ir.2) |
| DBG_VALUE 0, 0, !18, !23, debug-location !24 |
| STRXui $x2, $sp, 0, debug-location !27 :: (store 8 into %ir.1) |
| $w4 = ORRWri $wzr, 0, implicit-def $x4 |
| B %bb.5.sw.epilog |
| |
| bb.3.sw.bb2: |
| successors: %bb.5.sw.epilog(0x80000000) |
| liveins: $x0 |
| |
| $x4, $x3 = LDPXi $sp, 0 :: (dereferenceable load 8 from %ir.3), (dereferenceable load 8 from %ir..phi.trans.insert26) |
| $x2, $x1 = LDPXi $sp, 2 :: (dereferenceable load 8 from %ir..phi.trans.insert), (dereferenceable load 8 from %ir.4) |
| B %bb.5.sw.epilog |
| |
| bb.4: |
| successors: %bb.5.sw.epilog(0x80000000) |
| liveins: $x0 |
| |
| $x2 = ORRXrs $xzr, $xzr, 0 |
| $x4 = ORRXrs $xzr, $xzr, 0 |
| $x3 = IMPLICIT_DEF debug-location !32 |
| $x1 = IMPLICIT_DEF |
| |
| bb.5.sw.epilog: |
| liveins: $x0, $x1, $x2, $x3, $x4 |
| |
| $w8 = LDRBBui $x0, 5 :: (load 1 from %ir.bx) |
| $w0 = LDRWui killed $x0, 0 :: (load 4 from %ir.bw1) |
| $x7 = ADRP target-flags(aarch64-page) @bt |
| $x7 = ADDXri killed $x7, target-flags(aarch64-pageoff, aarch64-nc) @bt, 0 |
| dead $wzr = SUBSWri killed $w8, 0, 0, implicit-def $nzcv |
| $w5 = CSINCWr $wzr, $wzr, 0, implicit killed $nzcv |
| $w6 = ORRWrs $wzr, $wzr, 0 |
| BL @_Z2byi1LS_bbPi, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit killed $x1, implicit killed $x2, implicit killed $x3, implicit killed $x4, implicit killed $w5, implicit killed $w6, implicit killed $x7, implicit-def $sp |
| $lr = LDRXui $sp, 4 :: (load 8 from %stack.2) |
| $sp = ADDXri $sp, 48, 0 |
| RET undef $lr |
| |
| ... |