75 lines · plain
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 correctly propagated into a loop with5 ; break.6 7 ; CHECK-LABEL: bb.0.entry:8 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()9 ; CHECK-LABEL: bb.1.bb1:10 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()11 ; CHECK-LABEL: bb.2.bb2:12 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()13 ; CHECK-LABEL: bb.3.bb3:14 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()15 ; CHECK-LABEL: bb.4.bb4:16 ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()17 18 define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {19 entry:20 br label %bb1, !dbg !1721 bb1:22 br label %bb2, !dbg !1723 bb2:24 br label %bb3, !dbg !1725 bb3:26 br label %bb4, !dbg !1727 bb4:28 ret i32 0, !dbg !1729 }30 31 !llvm.dbg.cu = !{!0}32 !llvm.module.flags = !{!7, !8, !9, !10}33 !llvm.ident = !{!11}34 !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)35 !1 = !DIFile(filename: "main.cpp", directory: "F:\")36 !2 = !{}37 !3 = !{!4}38 !4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())39 !5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)40 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)41 !7 = !{i32 2, !"Dwarf Version", i32 4}42 !8 = !{i32 2, !"Debug Info Version", i32 3}43 !9 = !{i32 1, !"wchar_size", i32 2}44 !10 = !{i32 7, !"PIC Level", i32 2}45 !11 = !{!"clang version 10.0.0"}46 !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)47 !13 = !DISubroutineType(types: !14)48 !14 = !{!6, !6}49 !15 = !{!16}50 !16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)51 !17 = !DILocation(line: 10, scope: !12)52 53...54---55name: _Z8bb_to_bb56body: |57 bb.0.entry:58 successors: %bb.159 $ebx = MOV32ri 0, debug-location !1760 DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !1761 bb.1.bb1:62 successors: %bb.263 $eax = MOV32ri 0, debug-location !1764 bb.2.bb2:65 successors: %bb.3, %bb.466 $eax = MOV32ri 0, debug-location !1767 JCC_1 %bb.4, 4, implicit killed $eflags68 bb.3.bb3:69 successors: %bb.1, %bb.470 $eax = MOV32ri 0, debug-location !1771 JCC_1 %bb.1, 4, implicit killed $eflags72 bb.4.bb4:73 RET64 $eax, debug-location !1774...75