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1; RUN: opt -passes=declare-to-assign -S %s -o - | FileCheck %s2 3;; Check assignment tracking debug info for structured bindings. FIXME only4;; variables at offset 0 in the backing alloca are currently tracked with the5;; feature.6 7;; struct two { int a, b; };8;; two get();9;; int fun() {10;; auto [a,b] = get();11;; return a * b;12;; }13 14; CHECK: %0 = alloca %struct.two, align 4, !DIAssignID ![[ID1:[0-9]+]]15; CHECK-NEXT: #dbg_assign(i1 poison, ![[AGGR:[0-9]+]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),16; CHECK-NEXT: #dbg_assign(i1 poison, ![[A:[0-9]+]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),17; CHECK-NEXT: #dbg_declare(ptr %0, ![[B:[0-9]+]], !DIExpression(DW_OP_plus_uconst, 4),18 19; CHECK: store i64 %call, ptr %0, align 4,{{.*}}, !DIAssignID ![[ID2:[0-9]+]]20; CHECK-NEXT: #dbg_assign(i64 %call, ![[AGGR]], !DIExpression(), ![[ID2]], ptr %0, !DIExpression(),21; CHECK-NEXT: #dbg_assign(i64 %call, ![[A]], !DIExpression(), ![[ID2]], ptr %0, !DIExpression(),22 23; CHECK: ![[AGGR]] = !DILocalVariable(scope:24; CHECK: ![[A]] = !DILocalVariable(name: "a", scope:25; CHECK: ![[B]] = !DILocalVariable(name: "b", scope:26 27%struct.two = type { i32, i32 }28 29define dso_local noundef i32 @_Z3funv() #0 !dbg !10 {30entry:31 %0 = alloca %struct.two, align 432 call void @llvm.dbg.declare(metadata ptr %0, metadata !15, metadata !DIExpression()), !dbg !1633 call void @llvm.dbg.declare(metadata ptr %0, metadata !17, metadata !DIExpression(DW_OP_plus_uconst, 4)), !dbg !1834 call void @llvm.dbg.declare(metadata ptr %0, metadata !19, metadata !DIExpression()), !dbg !2435 %call = call i64 @_Z3getv(), !dbg !2536 store i64 %call, ptr %0, align 4, !dbg !2537 %a = getelementptr inbounds %struct.two, ptr %0, i32 0, i32 0, !dbg !1638 %1 = load i32, ptr %a, align 4, !dbg !2639 %b = getelementptr inbounds %struct.two, ptr %0, i32 0, i32 1, !dbg !1840 %2 = load i32, ptr %b, align 4, !dbg !2741 %mul = mul nsw i32 %1, %2, !dbg !2842 ret i32 %mul, !dbg !2943}44 45declare void @llvm.dbg.declare(metadata, metadata, metadata)46declare i64 @_Z3getv()47 48!llvm.dbg.cu = !{!0}49!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8}50!llvm.ident = !{!9}51 52!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 17.0.0)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)53!1 = !DIFile(filename: "test.cpp", directory: "/")54!2 = !{i32 7, !"Dwarf Version", i32 5}55!3 = !{i32 2, !"Debug Info Version", i32 3}56!4 = !{i32 1, !"wchar_size", i32 4}57!5 = !{i32 8, !"PIC Level", i32 2}58!6 = !{i32 7, !"PIE Level", i32 2}59!7 = !{i32 7, !"uwtable", i32 2}60!8 = !{i32 7, !"frame-pointer", i32 2}61!9 = !{!"clang version 17.0.0)"}62!10 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 3, type: !11, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !14)63!11 = !DISubroutineType(types: !12)64!12 = !{!13}65!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)66!14 = !{}67!15 = !DILocalVariable(name: "a", scope: !10, file: !1, line: 4, type: !13)68!16 = !DILocation(line: 4, column: 9, scope: !10)69!17 = !DILocalVariable(name: "b", scope: !10, file: !1, line: 4, type: !13)70!18 = !DILocation(line: 4, column: 11, scope: !10)71!19 = !DILocalVariable(scope: !10, file: !1, line: 4, type: !20)72!20 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "two", file: !1, line: 1, size: 64, flags: DIFlagTypePassByValue, elements: !21, identifier: "_ZTS3two")73!21 = !{!22, !23}74!22 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !20, file: !1, line: 1, baseType: !13, size: 32)75!23 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !20, file: !1, line: 1, baseType: !13, size: 32, offset: 32)76!24 = !DILocation(line: 4, column: 8, scope: !10)77!25 = !DILocation(line: 4, column: 16, scope: !10)78!26 = !DILocation(line: 5, column: 10, scope: !10)79!27 = !DILocation(line: 5, column: 14, scope: !10)80!28 = !DILocation(line: 5, column: 12, scope: !10)81!29 = !DILocation(line: 5, column: 3, scope: !10)82