; RUN: llc --stop-after=hardware-loops < %s | FileCheck %s ;; Tests that Hardware Loop Insertion does not insert new phi nodes after debug ;; records when they appear immediately after the last existing phi node. ; CHECK-LABEL: for.body: ; CHECK-NEXT: = phi ptr ; CHECK-NEXT: = phi i32 ; CHECK-NEXT: #dbg_value source_filename = "repro.c" target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" target triple = "thumbv8.1m.main-arm-none-eabi" @z = dso_local local_unnamed_addr global i32 42, align 4, !dbg !0 @arr = dso_local local_unnamed_addr global [10 x i32] zeroinitializer, align 4, !dbg !5 define dso_local void @func1() local_unnamed_addr #0 !dbg !18 { entry: %0 = load i32, ptr @z, align 4, !tbaa !26 br label %for.body, !dbg !30 for.body: ; preds = %entry, %for.body %p1.04 = phi ptr [ @arr, %entry ], [ %incdec.ptr, %for.body ] %i.03 = phi i32 [ 0, %entry ], [ %inc, %for.body ] tail call void @llvm.dbg.value(metadata ptr %p1.04, metadata !23, metadata !DIExpression()), !dbg !25 store i32 %0, ptr %p1.04, align 4, !dbg !32, !tbaa !26 %inc = add nuw nsw i32 %i.03, 1, !dbg !34 %incdec.ptr = getelementptr inbounds i8, ptr %p1.04, i32 4, !dbg !35 %exitcond.not = icmp eq i32 %inc, 10, !dbg !36 br i1 %exitcond.not, label %for.end, label %for.body, !dbg !30, !llvm.loop !37 for.end: ; preds = %for.body ret void, !dbg !41 } declare void @llvm.dbg.value(metadata, metadata, metadata) !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!11, !12, !13, !14, !15, !16} !llvm.ident = !{!17} !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = distinct !DIGlobalVariable(name: "z", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true) !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) !3 = !DIFile(filename: "repro.c", directory: "/home/gbtozers/dev/upstream-llvm") !4 = !{!0, !5} !5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression()) !6 = distinct !DIGlobalVariable(name: "arr", scope: !2, file: !3, line: 1, type: !7, isLocal: false, isDefinition: true) !7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 320, elements: !9) !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !9 = !{!10} !10 = !DISubrange(count: 10) !11 = !{i32 7, !"Dwarf Version", i32 5} !12 = !{i32 2, !"Debug Info Version", i32 3} !13 = !{i32 1, !"wchar_size", i32 4} !14 = !{i32 1, !"min_enum_size", i32 4} !15 = !{i32 7, !"frame-pointer", i32 2} !16 = !{i32 7, !"debug-info-assignment-tracking", i1 true} !17 = !{!"clang version 19.0.0git"} !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) !19 = !DISubroutineType(types: !20) !20 = !{null} !21 = !{!23} !22 = !DILocalVariable(name: "i", scope: !18, file: !3, line: 6, type: !8) !23 = !DILocalVariable(name: "p1", scope: !18, file: !3, line: 7, type: !24) !24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32) !25 = !DILocation(line: 0, scope: !18) !26 = !{!27, !27, i64 0} !27 = !{!"int", !28, i64 0} !28 = !{!"omnipotent char", !29, i64 0} !29 = !{!"Simple C/C++ TBAA"} !30 = !DILocation(line: 8, column: 3, scope: !31) !31 = distinct !DILexicalBlock(scope: !18, file: !3, line: 8, column: 3) !32 = !DILocation(line: 9, column: 10, scope: !33) !33 = distinct !DILexicalBlock(scope: !31, file: !3, line: 8, column: 3) !34 = !DILocation(line: 8, column: 27, scope: !33) !35 = !DILocation(line: 8, column: 32, scope: !33) !36 = !DILocation(line: 8, column: 21, scope: !33) !37 = distinct !{!37, !30, !38, !39, !40} !38 = !DILocation(line: 9, column: 12, scope: !31) !39 = !{!"llvm.loop.mustprogress"} !40 = !{!"llvm.loop.unroll.disable"} !41 = !DILocation(line: 10, column: 1, scope: !18)