1; RUN: llc %s -stop-after=finalize-isel -o - | FileCheck %s 2 3 4; RUN: llc --try-experimental-debuginfo-iterators %s -stop-after=finalize-isel -o - | FileCheck %s 5 6;; Check that a zero-sized fragment (the final dbg.assign) is ignored by 7;; AssignmentTrackingAnalysis. 8 9; CHECK: stack: 10; CHECK-NEXT: - { id: 0, name: m4, type: default, offset: 0, size: 32, alignment: 8, 11; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, 12; CHECK-NEXT: debug-info-variable: '![[#]]', debug-info-expression: '!DIExpression()', 13; CHECK-NEXT: debug-info-location: '![[#]]' } 14 15target triple = "x86_64-unknown-unknown" 16 17%struct.mm = type { [8 x i32] } 18 19@m1 = local_unnamed_addr global %struct.mm zeroinitializer, align 4, !dbg !0 20 21define dso_local i32 @main() local_unnamed_addr #0 !dbg !23 { 22entry: 23 %m4 = alloca %struct.mm, align 8, !DIAssignID !28 24 call void @llvm.dbg.assign(metadata i1 undef, metadata !27, metadata !DIExpression(), metadata !28, metadata ptr %m4, metadata !DIExpression()), !dbg !29 25 call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %m4, ptr noundef nonnull align 4 dereferenceable(32) @m1, i64 32, i1 false), !dbg !31, !DIAssignID !36 26 call void @llvm.dbg.assign(metadata i1 undef, metadata !27, metadata !DIExpression(), metadata !36, metadata ptr %m4, metadata !DIExpression()), !dbg !29 27 call void @llvm.dbg.assign(metadata i1 undef, metadata !27, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 0), metadata !43, metadata ptr %m4, metadata !DIExpression(DW_OP_plus_uconst, 8)), !dbg !29 28 ret i32 0, !dbg !45 29} 30 31 32declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2 33declare void @foo(i32 noundef) local_unnamed_addr #3 34declare i32 @bar(ptr noundef byval(%struct.mm) align 8, ptr noundef byval(%struct.mm) align 8) local_unnamed_addr #3 35declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) #4 36 37!llvm.dbg.cu = !{!2} 38!llvm.module.flags = !{!19, !20, !21} 39!llvm.ident = !{!22} 40 41!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 42!1 = distinct !DIGlobalVariable(name: "m1", scope: !2, file: !9, line: 1, type: !10, isLocal: false, isDefinition: true) 43!2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 17.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, retainedTypes: !4, globals: !6, splitDebugInlining: false, nameTableKind: None) 44!3 = !DIFile(filename: "<stdin>", directory: "/") 45!4 = !{!5} 46!5 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) 47!6 = !{!0} 48!9 = !DIFile(filename: "repro.c", directory: "/") 49!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "mm", file: !9, line: 1, size: 256, elements: !11) 50!11 = !{!12} 51!12 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !10, file: !9, line: 1, baseType: !13, size: 256) 52!13 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 256, elements: !15) 53!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 54!15 = !{!16} 55!16 = !DISubrange(count: 8) 56!19 = !{i32 2, !"Debug Info Version", i32 3} 57!20 = !{i32 1, !"wchar_size", i32 4} 58!21 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 59!22 = !{!"clang version 17.0.0"} 60!23 = distinct !DISubprogram(name: "main", scope: !9, file: !9, line: 7, type: !24, scopeLine: 8, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !26) 61!24 = !DISubroutineType(types: !25) 62!25 = !{!14} 63!26 = !{!27} 64!27 = !DILocalVariable(name: "m4", scope: !23, file: !9, line: 9, type: !10) 65!28 = distinct !DIAssignID() 66!29 = !DILocation(line: 0, scope: !23) 67!31 = !DILocation(line: 11, column: 8, scope: !23) 68!36 = distinct !DIAssignID() 69!43 = distinct !DIAssignID() 70!45 = !DILocation(line: 19, column: 3, scope: !23) 71