; RUN: opt -passes=sroa -S %s -o - | FileCheck %s ; RUN: opt --try-experimental-debuginfo-iterators -passes=sroa -S %s -o - | FileCheck %s ;; Check that multiple dbg.assign intrinsics linked to a store that is getting ;; split (or at least that is touched by SROA, causing a replacement store to ;; be generated) are still both linked to the new store(s). ;; ;; Additionally, check that SROA inserts new dbg.assign intrinsics by the ;; originals. ;; $ cat test.cpp ;; class a { ;; public: ;; a(int, float &) {} ;; }; ;; float b, d; ;; int c; ;; void f() { ;; float e; ;; if (c) ;; e = b; ;; else ;; e = b / d; ;; a(c, e); ;; } ;; ;; Generated by grabbing IR before sroa in: ;; $ clang++ -O2 -g -c test.cpp -Xclang -fexperimental-assignment-tracking ; CHECK: if.then: ; CHECK-NEXT: %1 = load float ; CHECK-NEXT: call void @llvm.dbg.value(metadata float %storemerge, metadata ![[var:[0-9]+]], metadata !DIExpression()) ; CHECK: if.else: ; CHECK-NEXT: %2 = load float ; CHECK-NEXT: %3 = load float ; CHECK-NEXT: %div = fdiv float ; CHECK: call void @llvm.dbg.value(metadata float %storemerge, metadata ![[var]], metadata !DIExpression()) %class.a = type { i8 } $_ZN1aC2EiRf = comdat any @b = dso_local local_unnamed_addr global float 0.000000e+00, align 4, !dbg !0 @d = dso_local local_unnamed_addr global float 0.000000e+00, align 4, !dbg !6 @c = dso_local local_unnamed_addr global i32 0, align 4, !dbg !9 ; Function Attrs: nounwind readonly uwtable define dso_local void @_Z1fv() local_unnamed_addr #0 !dbg !16 { entry: %e = alloca float, align 4, !DIAssignID !21 call void @llvm.dbg.assign(metadata i1 undef, metadata !20, metadata !DIExpression(), metadata !21, metadata ptr %e, metadata !DIExpression()), !dbg !22 %agg.tmp.ensured = alloca %class.a, align 1 %0 = bitcast ptr %e to ptr, !dbg !23 call void @llvm.lifetime.start.p0i8(i64 4, ptr nonnull %0) #4, !dbg !23 %1 = load i32, ptr @c, align 4, !dbg !24 %tobool.not = icmp eq i32 %1, 0, !dbg !24 br i1 %tobool.not, label %if.else, label %if.then, !dbg !30 if.then: ; preds = %entry %2 = load float, ptr @b, align 4, !dbg !31 call void @llvm.dbg.assign(metadata float %2, metadata !20, metadata !DIExpression(), metadata !34, metadata ptr %e, metadata !DIExpression()), !dbg !22 br label %if.end, !dbg !35 if.else: ; preds = %entry %3 = load float, ptr @b, align 4, !dbg !36 %4 = load float, ptr @d, align 4, !dbg !37 %div = fdiv float %3, %4, !dbg !38 call void @llvm.dbg.assign(metadata float %div, metadata !20, metadata !DIExpression(), metadata !34, metadata ptr %e, metadata !DIExpression()), !dbg !22 br label %if.end if.end: ; preds = %if.else, %if.then %storemerge = phi float [ %div, %if.else ], [ %2, %if.then ], !dbg !39 store float %storemerge, ptr %e, align 4, !dbg !39, !DIAssignID !34 %5 = load i32, ptr @c, align 4, !dbg !40 call void @llvm.dbg.assign(metadata i1 undef, metadata !41, metadata !DIExpression(), metadata !54, metadata ptr undef, metadata !DIExpression()), !dbg !55 call void @llvm.dbg.assign(metadata i1 undef, metadata !51, metadata !DIExpression(), metadata !57, metadata ptr undef, metadata !DIExpression()), !dbg !55 call void @llvm.dbg.assign(metadata i1 undef, metadata !52, metadata !DIExpression(), metadata !58, metadata ptr undef, metadata !DIExpression()), !dbg !55 call void @llvm.dbg.assign(metadata ptr %agg.tmp.ensured, metadata !41, metadata !DIExpression(), metadata !59, metadata ptr undef, metadata !DIExpression()), !dbg !55 call void @llvm.dbg.assign(metadata i32 %5, metadata !51, metadata !DIExpression(), metadata !60, metadata ptr undef, metadata !DIExpression()), !dbg !55 call void @llvm.dbg.assign(metadata ptr %e, metadata !52, metadata !DIExpression(), metadata !61, metadata ptr undef, metadata !DIExpression()), !dbg !55 call void @llvm.lifetime.end.p0i8(i64 4, ptr nonnull %0) #4, !dbg !62 ret void, !dbg !62 } ; Function Attrs: argmemonly nofree nosync nounwind willreturn declare void @llvm.lifetime.start.p0i8(i64 immarg, ptr nocapture) #1 ; Function Attrs: nounwind uwtable define linkonce_odr dso_local void @_ZN1aC2EiRf(ptr %this, i32 %0, ptr nonnull align 4 dereferenceable(4) %1) unnamed_addr #2 comdat align 2 !dbg !42 { entry: call void @llvm.dbg.assign(metadata i1 undef, metadata !41, metadata !DIExpression(), metadata !63, metadata ptr undef, metadata !DIExpression()), !dbg !64 call void @llvm.dbg.assign(metadata i1 undef, metadata !51, metadata !DIExpression(), metadata !65, metadata ptr undef, metadata !DIExpression()), !dbg !64 call void @llvm.dbg.assign(metadata i1 undef, metadata !52, metadata !DIExpression(), metadata !66, metadata ptr undef, metadata !DIExpression()), !dbg !64 call void @llvm.dbg.assign(metadata ptr %this, metadata !41, metadata !DIExpression(), metadata !67, metadata ptr undef, metadata !DIExpression()), !dbg !64 call void @llvm.dbg.assign(metadata i32 %0, metadata !51, metadata !DIExpression(), metadata !68, metadata ptr undef, metadata !DIExpression()), !dbg !64 call void @llvm.dbg.assign(metadata ptr %1, metadata !52, metadata !DIExpression(), metadata !69, metadata ptr undef, metadata !DIExpression()), !dbg !64 ret void, !dbg !70 } ; Function Attrs: argmemonly nofree nosync nounwind willreturn declare void @llvm.lifetime.end.p0i8(i64 immarg, ptr nocapture) #1 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) #3 !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!12, !13, !14, !1000} !llvm.ident = !{!15} !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 5, type: !8, isLocal: false, isDefinition: true) !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None) !3 = !DIFile(filename: "reduce.cpp", directory: "") !4 = !{} !5 = !{!0, !6, !9} !6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) !7 = distinct !DIGlobalVariable(name: "d", scope: !2, file: !3, line: 5, type: !8, isLocal: false, isDefinition: true) !8 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) !9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression()) !10 = distinct !DIGlobalVariable(name: "c", scope: !2, file: !3, line: 6, type: !11, isLocal: false, isDefinition: true) !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !12 = !{i32 7, !"Dwarf Version", i32 4} !13 = !{i32 2, !"Debug Info Version", i32 3} !14 = !{i32 1, !"wchar_size", i32 4} !15 = !{!"clang version 12.0.0"} !16 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", scope: !3, file: !3, line: 7, type: !17, scopeLine: 7, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !19) !17 = !DISubroutineType(types: !18) !18 = !{null} !19 = !{!20} !20 = !DILocalVariable(name: "e", scope: !16, file: !3, line: 8, type: !8) !21 = distinct !DIAssignID() !22 = !DILocation(line: 0, scope: !16) !23 = !DILocation(line: 8, column: 3, scope: !16) !24 = !DILocation(line: 9, column: 7, scope: !25) !25 = distinct !DILexicalBlock(scope: !16, file: !3, line: 9, column: 7) !30 = !DILocation(line: 9, column: 7, scope: !16) !31 = !DILocation(line: 10, column: 9, scope: !25) !34 = distinct !DIAssignID() !35 = !DILocation(line: 10, column: 5, scope: !25) !36 = !DILocation(line: 12, column: 9, scope: !25) !37 = !DILocation(line: 12, column: 13, scope: !25) !38 = !DILocation(line: 12, column: 11, scope: !25) !39 = !DILocation(line: 0, scope: !25) !40 = !DILocation(line: 13, column: 5, scope: !16) !41 = !DILocalVariable(name: "this", arg: 1, scope: !42, type: !53, flags: DIFlagArtificial | DIFlagObjectPointer) !42 = distinct !DISubprogram(name: "a", linkageName: "_ZN1aC2EiRf", scope: !43, file: !3, line: 3, type: !46, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, declaration: !45, retainedNodes: !50) !43 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "a", file: !3, line: 1, size: 8, flags: DIFlagTypePassByValue | DIFlagNonTrivial, elements: !44, identifier: "_ZTS1a") !44 = !{!45} !45 = !DISubprogram(name: "a", scope: !43, file: !3, line: 3, type: !46, scopeLine: 3, flags: DIFlagPublic | DIFlagPrototyped, spFlags: DISPFlagOptimized) !46 = !DISubroutineType(types: !47) !47 = !{null, !48, !11, !49} !48 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !43, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer) !49 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !8, size: 64) !50 = !{!41, !51, !52} !51 = !DILocalVariable(arg: 2, scope: !42, file: !3, line: 3, type: !11) !52 = !DILocalVariable(arg: 3, scope: !42, file: !3, line: 3, type: !49) !53 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !43, size: 64) !54 = distinct !DIAssignID() !55 = !DILocation(line: 0, scope: !42, inlinedAt: !56) !56 = distinct !DILocation(line: 13, column: 3, scope: !16) !57 = distinct !DIAssignID() !58 = distinct !DIAssignID() !59 = distinct !DIAssignID() !60 = distinct !DIAssignID() !61 = distinct !DIAssignID() !62 = !DILocation(line: 14, column: 1, scope: !16) !63 = distinct !DIAssignID() !64 = !DILocation(line: 0, scope: !42) !65 = distinct !DIAssignID() !66 = distinct !DIAssignID() !67 = distinct !DIAssignID() !68 = distinct !DIAssignID() !69 = distinct !DIAssignID() !70 = !DILocation(line: 3, column: 20, scope: !42) !1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}