1; RUN: llc %s -stop-after=finalize-isel -o - \ 2; RUN: | FileCheck %s 3 4; RUN: llc --try-experimental-debuginfo-iterators %s -stop-after=finalize-isel -o - \ 5; RUN: | FileCheck %s 6;; 7;; Backend counterpart to ../Generic/dbg-assign-loop-unroll. This IR was 8;; generated by running `opt -loop-unroll -S` on the IR in that test. 9;; 10;; Check that the backend can handle a mesh of dbg.assign and linked 11;; instructions. 12;; 13;; Generated from the following source: 14;; void esc(int*); 15;; void d(int p) { 16;; for (int i = 0; i < 2; ++i) { 17;; p = i; 18;; esc(&p); 19;; } 20;; } 21 22; CHECK: ![[p:[0-9]+]] = !DILocalVariable(name: "p", 23 24; CHECK: stack: 25; CHECK-NEXT: - { id: 0, name: p.addr, type: default, offset: 0, size: 4, alignment: 4, 26; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, 27; CHECK-NEXT: debug-info-variable: '![[p]]', debug-info-expression: '!DIExpression()', 28; CHECK-NEXT: debug-info-location: '!{{.+}}' } 29 30target triple = "x86_64-unknown-linux-gnu" 31 32define dso_local void @_Z1di(i32 %p) local_unnamed_addr !dbg !7 { 33entry: 34 %p.addr = alloca i32, align 4 35 store i32 %p, ptr %p.addr, align 4, !DIAssignID !19 36 call void @llvm.dbg.assign(metadata i32 %p, metadata !12, metadata !DIExpression(), metadata !19, metadata ptr %p.addr, metadata !DIExpression()), !dbg !20 37 call void @llvm.dbg.assign(metadata i32 0, metadata !13, metadata !DIExpression(), metadata !21, metadata ptr undef, metadata !DIExpression()), !dbg !22 38 br label %for.body, !dbg !23 39 40for.body: ; preds = %entry 41 store i32 0, ptr %p.addr, align 4, !dbg !24, !DIAssignID !27 42 call void @llvm.dbg.assign(metadata i32 0, metadata !12, metadata !DIExpression(), metadata !27, metadata ptr %p.addr, metadata !DIExpression()), !dbg !24 43 call void @_Z3escPi(ptr nonnull %p.addr), !dbg !28 44 call void @llvm.dbg.assign(metadata i32 1, metadata !13, metadata !DIExpression(), metadata !29, metadata ptr undef, metadata !DIExpression()), !dbg !30 45 store i32 1, ptr %p.addr, align 4, !dbg !24, !DIAssignID !27 46 call void @llvm.dbg.assign(metadata i32 1, metadata !12, metadata !DIExpression(), metadata !27, metadata ptr %p.addr, metadata !DIExpression()), !dbg !24 47 call void @_Z3escPi(ptr nonnull %p.addr), !dbg !28 48 call void @llvm.dbg.assign(metadata i32 2, metadata !13, metadata !DIExpression(), metadata !29, metadata ptr undef, metadata !DIExpression()), !dbg !30 49 ret void, !dbg !31 50} 51 52declare !dbg !32 dso_local void @_Z3escPi(ptr) local_unnamed_addr 53declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) 54 55!llvm.dbg.cu = !{!0} 56!llvm.module.flags = !{!3, !4, !5, !1000} 57!llvm.ident = !{!6} 58 59!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) 60!1 = !DIFile(filename: "test.cpp", directory: "/") 61!2 = !{} 62!3 = !{i32 7, !"Dwarf Version", i32 4} 63!4 = !{i32 2, !"Debug Info Version", i32 3} 64!5 = !{i32 1, !"wchar_size", i32 4} 65!6 = !{!"clang version 12.0.0"} 66!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) 67!8 = !DISubroutineType(types: !9) 68!9 = !{null, !10} 69!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 70!11 = !{!12, !13} 71!12 = !DILocalVariable(name: "p", arg: 1, scope: !7, file: !1, line: 2, type: !10) 72!13 = !DILocalVariable(name: "i", scope: !14, file: !1, line: 3, type: !10) 73!14 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 3) 74!19 = distinct !DIAssignID() 75!20 = !DILocation(line: 0, scope: !7) 76!21 = distinct !DIAssignID() 77!22 = !DILocation(line: 3, column: 12, scope: !14) 78!23 = !DILocation(line: 3, column: 3, scope: !14) 79!24 = !DILocation(line: 4, column: 7, scope: !25) 80!25 = distinct !DILexicalBlock(scope: !26, file: !1, line: 3, column: 31) 81!26 = distinct !DILexicalBlock(scope: !14, file: !1, line: 3, column: 3) 82!27 = distinct !DIAssignID() 83!28 = !DILocation(line: 5, column: 5, scope: !25) 84!29 = distinct !DIAssignID() 85!30 = !DILocation(line: 3, column: 26, scope: !26) 86!31 = !DILocation(line: 7, column: 1, scope: !7) 87!32 = !DISubprogram(name: "esc", linkageName: "_Z3escPi", scope: !1, file: !1, line: 1, type: !33, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) 88!33 = !DISubroutineType(types: !34) 89!34 = !{null, !35} 90!35 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64) 91!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 92