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1--- |2 ; RUN: llc %s -mtriple=x86_64 -run-pass=livedebugvalues -o - | FileCheck %s -implicit-check-not=DBG_VALUE3 4 ; Check that DBG_VALUE instructions are propagated into loops within loops.5 6 ; CHECK-LABEL: bb.0.entry:7 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()8 ; CHECK-LABEL: bb.1.bb1:9 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()10 ; CHECK-LABEL: bb.2.bb2:11 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()12 ; CHECK-LABEL: bb.3.bb3:13 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()14 ; CHECK-LABEL: bb.4.bb4:15 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()16 ; CHECK-LABEL: bb.5.bb5:17 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()18 19 define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {20 entry:21 br label %bb1, !dbg !1722 bb1:23 br label %bb2, !dbg !1724 bb2:25 br label %bb3, !dbg !1726 bb3:27 br label %bb3, !dbg !1728 bb4:29 br label %bb3, !dbg !1730 bb5:31 ret i32 0, !dbg !1732 }33 34 !llvm.dbg.cu = !{!0}35 !llvm.module.flags = !{!7, !8, !9, !10}36 !llvm.ident = !{!11}37 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)38 !1 = !DIFile(filename: "main.cpp", directory: "F:\")39 !2 = !{}40 !3 = !{!4}41 !4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())42 !5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)43 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)44 !7 = !{i32 2, !"Dwarf Version", i32 4}45 !8 = !{i32 2, !"Debug Info Version", i32 3}46 !9 = !{i32 1, !"wchar_size", i32 2}47 !10 = !{i32 7, !"PIC Level", i32 2}48 !11 = !{!"clang version 10.0.0"}49 !12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)50 !13 = !DISubroutineType(types: !14)51 !14 = !{!6, !6}52 !15 = !{!16}53 !16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)54 !17 = !DILocation(line: 10, scope: !12)55 56...57---58name: _Z8bb_to_bb59body: |60 bb.0.entry:61 successors: %bb.162 $ebx = MOV32ri 0, debug-location !1763 DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !1764 bb.1.bb1:65 successors: %bb.2, %bb.466 $eax = MOV32ri 0, debug-location !1767 JCC_1 %bb.4, 4, implicit killed $eflags68 bb.2.bb2:69 successors: %bb.370 $eax = MOV32ri 0, debug-location !1771 bb.3.bb3:72 successors: %bb.2, %bb.473 $eax = MOV32ri 0, debug-location !1774 JCC_1 %bb.2, 4, implicit killed $eflags75 bb.4.bb4:76 successors: %bb.1, %bb.577 $eax = MOV32ri 0, debug-location !1778 JCC_1 %bb.1, 4, implicit killed $eflags79 bb.5.bb5:80 RET64 $eax, debug-location !1781...82