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1; RUN: llc %s -stop-after=finalize-isel -o - \2; RUN: | FileCheck %s3;;4;; Backend counterpart to ../Generic/dbg-assign-loop-unroll. This IR was5;; generated by running `opt -loop-unroll -S` on the IR in that test.6;;7;; Check that the backend can handle a mesh of dbg.assign and linked8;; instructions.9;;10;; Generated from the following source:11;; void esc(int*);12;; void d(int p) {13;; for (int i = 0; i < 2; ++i) {14;; p = i;15;; esc(&p);16;; }17;; }18 19; CHECK: ![[p:[0-9]+]] = !DILocalVariable(name: "p",20 21; CHECK: stack:22; CHECK-NEXT: - { id: 0, name: p.addr, type: default, offset: 0, size: 4, alignment: 4,23; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,24; CHECK-NEXT: debug-info-variable: '![[p]]', debug-info-expression: '!DIExpression()',25; CHECK-NEXT: debug-info-location: '!{{.+}}' }26 27target triple = "x86_64-unknown-linux-gnu"28 29define dso_local void @_Z1di(i32 %p) local_unnamed_addr !dbg !7 {30entry:31 %p.addr = alloca i32, align 432 store i32 %p, ptr %p.addr, align 4, !DIAssignID !1933 call void @llvm.dbg.assign(metadata i32 %p, metadata !12, metadata !DIExpression(), metadata !19, metadata ptr %p.addr, metadata !DIExpression()), !dbg !2034 call void @llvm.dbg.assign(metadata i32 0, metadata !13, metadata !DIExpression(), metadata !21, metadata ptr undef, metadata !DIExpression()), !dbg !2235 br label %for.body, !dbg !2336 37for.body: ; preds = %entry38 store i32 0, ptr %p.addr, align 4, !dbg !24, !DIAssignID !2739 call void @llvm.dbg.assign(metadata i32 0, metadata !12, metadata !DIExpression(), metadata !27, metadata ptr %p.addr, metadata !DIExpression()), !dbg !2440 call void @_Z3escPi(ptr nonnull %p.addr), !dbg !2841 call void @llvm.dbg.assign(metadata i32 1, metadata !13, metadata !DIExpression(), metadata !29, metadata ptr undef, metadata !DIExpression()), !dbg !3042 store i32 1, ptr %p.addr, align 4, !dbg !24, !DIAssignID !2743 call void @llvm.dbg.assign(metadata i32 1, metadata !12, metadata !DIExpression(), metadata !27, metadata ptr %p.addr, metadata !DIExpression()), !dbg !2444 call void @_Z3escPi(ptr nonnull %p.addr), !dbg !2845 call void @llvm.dbg.assign(metadata i32 2, metadata !13, metadata !DIExpression(), metadata !29, metadata ptr undef, metadata !DIExpression()), !dbg !3046 ret void, !dbg !3147}48 49declare !dbg !32 dso_local void @_Z3escPi(ptr) local_unnamed_addr50declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)51 52!llvm.dbg.cu = !{!0}53!llvm.module.flags = !{!3, !4, !5, !1000}54!llvm.ident = !{!6}55 56!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)57!1 = !DIFile(filename: "test.cpp", directory: "/")58!2 = !{}59!3 = !{i32 7, !"Dwarf Version", i32 4}60!4 = !{i32 2, !"Debug Info Version", i32 3}61!5 = !{i32 1, !"wchar_size", i32 4}62!6 = !{!"clang version 12.0.0"}63!7 = distinct !DISubprogram(name: "d", linkageName: "_Z1di", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)64!8 = !DISubroutineType(types: !9)65!9 = !{null, !10}66!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)67!11 = !{!12, !13}68!12 = !DILocalVariable(name: "p", arg: 1, scope: !7, file: !1, line: 2, type: !10)69!13 = !DILocalVariable(name: "i", scope: !14, file: !1, line: 3, type: !10)70!14 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 3)71!19 = distinct !DIAssignID()72!20 = !DILocation(line: 0, scope: !7)73!21 = distinct !DIAssignID()74!22 = !DILocation(line: 3, column: 12, scope: !14)75!23 = !DILocation(line: 3, column: 3, scope: !14)76!24 = !DILocation(line: 4, column: 7, scope: !25)77!25 = distinct !DILexicalBlock(scope: !26, file: !1, line: 3, column: 31)78!26 = distinct !DILexicalBlock(scope: !14, file: !1, line: 3, column: 3)79!27 = distinct !DIAssignID()80!28 = !DILocation(line: 5, column: 5, scope: !25)81!29 = distinct !DIAssignID()82!30 = !DILocation(line: 3, column: 26, scope: !26)83!31 = !DILocation(line: 7, column: 1, scope: !7)84!32 = !DISubprogram(name: "esc", linkageName: "_Z3escPi", scope: !1, file: !1, line: 1, type: !33, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)85!33 = !DISubroutineType(types: !34)86!34 = !{null, !35}87!35 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64)88!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}89