1--- | 2 ; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - | FileCheck %s -implicit-check-not=DBG_VALUE 3 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 !17 22 bb1: 23 br label %bb2, !dbg !17 24 bb2: 25 br label %bb3, !dbg !17 26 bb3: 27 br label %bb3, !dbg !17 28 bb4: 29 br label %bb3, !dbg !17 30 bb5: 31 ret i32 0, !dbg !17 32 } 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_bb 59body: | 60 bb.0.entry: 61 successors: %bb.1 62 $ebx = MOV32ri 0, debug-location !17 63 DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17 64 bb.1.bb1: 65 successors: %bb.2, %bb.4 66 $eax = MOV32ri 0, debug-location !17 67 JCC_1 %bb.4, 4, implicit killed $eflags 68 bb.2.bb2: 69 successors: %bb.3 70 $eax = MOV32ri 0, debug-location !17 71 bb.3.bb3: 72 successors: %bb.2, %bb.4 73 $eax = MOV32ri 0, debug-location !17 74 JCC_1 %bb.2, 4, implicit killed $eflags 75 bb.4.bb4: 76 successors: %bb.1, %bb.5 77 $eax = MOV32ri 0, debug-location !17 78 JCC_1 %bb.1, 4, implicit killed $eflags 79 bb.5.bb5: 80 RETQ $eax, debug-location !17 81... 82