1; RUN: llc --stop-after=hardware-loops < %s | FileCheck %s 2 3;; Tests that Hardware Loop Insertion does not insert new phi nodes after debug 4;; records when they appear immediately after the last existing phi node. 5 6; CHECK-LABEL: for.body: 7; CHECK-NEXT: = phi i32 8; CHECK-NEXT: = phi i32 9; CHECK-NEXT: #dbg_value 10 11source_filename = "repro.c" 12target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" 13target triple = "thumbv8.1m.main-arm-none-eabi" 14 15@z = dso_local local_unnamed_addr global i32 42, align 4, !dbg !0 16@arr = dso_local local_unnamed_addr global [10 x i32] zeroinitializer, align 4, !dbg !5 17 18define dso_local void @func1() local_unnamed_addr #0 !dbg !18 { 19entry: 20 %0 = load i32, ptr @z, align 4, !tbaa !26 21 br label %for.body, !dbg !30 22 23for.body: ; preds = %entry, %for.body 24 %p1.04 = phi ptr [ @arr, %entry ], [ %incdec.ptr, %for.body ] 25 %i.03 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 26 tail call void @llvm.dbg.value(metadata ptr %p1.04, metadata !23, metadata !DIExpression()), !dbg !25 27 store i32 %0, ptr %p1.04, align 4, !dbg !32, !tbaa !26 28 %inc = add nuw nsw i32 %i.03, 1, !dbg !34 29 %incdec.ptr = getelementptr inbounds i8, ptr %p1.04, i32 4, !dbg !35 30 %exitcond.not = icmp eq i32 %inc, 10, !dbg !36 31 br i1 %exitcond.not, label %for.end, label %for.body, !dbg !30, !llvm.loop !37 32 33for.end: ; preds = %for.body 34 ret void, !dbg !41 35} 36 37declare void @llvm.dbg.value(metadata, metadata, metadata) 38 39!llvm.dbg.cu = !{!2} 40!llvm.module.flags = !{!11, !12, !13, !14, !15, !16} 41!llvm.ident = !{!17} 42 43!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 44!1 = distinct !DIGlobalVariable(name: "z", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true) 45!2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 19.0.0git", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None) 46!3 = !DIFile(filename: "repro.c", directory: "/home/gbtozers/dev/upstream-llvm") 47!4 = !{!0, !5} 48!5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression()) 49!6 = distinct !DIGlobalVariable(name: "arr", scope: !2, file: !3, line: 1, type: !7, isLocal: false, isDefinition: true) 50!7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 320, elements: !9) 51!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 52!9 = !{!10} 53!10 = !DISubrange(count: 10) 54!11 = !{i32 7, !"Dwarf Version", i32 5} 55!12 = !{i32 2, !"Debug Info Version", i32 3} 56!13 = !{i32 1, !"wchar_size", i32 4} 57!14 = !{i32 1, !"min_enum_size", i32 4} 58!15 = !{i32 7, !"frame-pointer", i32 2} 59!16 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 60!17 = !{!"clang version 19.0.0git"} 61!18 = distinct !DISubprogram(name: "func1", scope: !3, file: !3, line: 4, type: !19, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21) 62!19 = !DISubroutineType(types: !20) 63!20 = !{null} 64!21 = !{!23} 65!22 = !DILocalVariable(name: "i", scope: !18, file: !3, line: 6, type: !8) 66!23 = !DILocalVariable(name: "p1", scope: !18, file: !3, line: 7, type: !24) 67!24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32) 68!25 = !DILocation(line: 0, scope: !18) 69!26 = !{!27, !27, i64 0} 70!27 = !{!"int", !28, i64 0} 71!28 = !{!"omnipotent char", !29, i64 0} 72!29 = !{!"Simple C/C++ TBAA"} 73!30 = !DILocation(line: 8, column: 3, scope: !31) 74!31 = distinct !DILexicalBlock(scope: !18, file: !3, line: 8, column: 3) 75!32 = !DILocation(line: 9, column: 10, scope: !33) 76!33 = distinct !DILexicalBlock(scope: !31, file: !3, line: 8, column: 3) 77!34 = !DILocation(line: 8, column: 27, scope: !33) 78!35 = !DILocation(line: 8, column: 32, scope: !33) 79!36 = !DILocation(line: 8, column: 21, scope: !33) 80!37 = distinct !{!37, !30, !38, !39, !40} 81!38 = !DILocation(line: 9, column: 12, scope: !31) 82!39 = !{!"llvm.loop.mustprogress"} 83!40 = !{!"llvm.loop.unroll.disable"} 84!41 = !DILocation(line: 10, column: 1, scope: !18) 85