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1; RUN: llc -O0 %s -mtriple=aarch64 -stop-after=phi-node-elimination -o - | FileCheck %s2 3; Test that a DEBUG_VALUE node is create for variable c after the phi has been4; converted to a ldr. The DEBUG_VALUE must be *after* the ldr and not before it.5 6; Created from the C code, compiled with -O0 -g and then passed through opt -mem2reg:7;8; int func(int a)9; {10; int c = 1;11; if (a < 0 ) {12; c = 12;13; }14; return c;15; }16;17; Function Attrs: nounwind18; CHECK: !14 = !DILocalVariable(name: "c"19; CHECK-LABEL: name: func20define i32 @func(i32 %a0) #0 !dbg !8 {21entry:22 call void @llvm.dbg.value(metadata i32 %a0, i64 0, metadata !12, metadata !13), !dbg !1423 call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !15, metadata !13), !dbg !1624 %v2 = icmp slt i32 %a0, 0, !dbg !1725 br i1 %v2, label %bb2, label %bb3, !dbg !1926 27bb2:28 call void @llvm.dbg.value(metadata i32 12, i64 0, metadata !15, metadata !13), !dbg !1629 br label %bb3, !dbg !2030 31; CHECK: bb.2.bb2:32; CHECK: [[REG0:%[0-9]+]]:gpr32 = MOVi32imm 1233; CHECK: [[PHIREG:%[0-9]+]]:gpr32 = COPY [[REG0]]34 35bb3:36; CHECK: bb.3.bb3:37; CHECK: [[PHIDEST:%[0-9]+]]:gpr32 = COPY [[PHIREG]]38; CHECK-NEXT: DBG_VALUE [[PHIDEST]]39 %.0 = phi i32 [ 12, %bb2 ], [ 1, %entry ]40 call void @llvm.dbg.value(metadata i32 %.0, i64 0, metadata !15, metadata !13), !dbg !1641; CHECK: [[ADD:%[0-9]+]]:gpr32 = nsw ADDWrr [[PHIDEST]]42; CHECK-NEXT: DBG_VALUE [[ADD]]43 %v5 = add nsw i32 %.0, %a0, !dbg !2244 call void @llvm.dbg.value(metadata i32 %v5, i64 0, metadata !15, metadata !13), !dbg !1645 ret i32 %v5, !dbg !2346}47 48; Function Attrs: nounwind readnone49declare void @llvm.dbg.declare(metadata, metadata, metadata) #150 51; Function Attrs: nounwind readnone52declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #153 54attributes #0 = { nounwind }55attributes #1 = { nounwind readnone }56 57!llvm.dbg.cu = !{!0}58!llvm.module.flags = !{!3, !4, !5, !6}59!llvm.ident = !{!7}60 61!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)62!1 = !DIFile(filename: "a.c", directory: "/tmp")63!2 = !{}64!3 = !{i32 2, !"Dwarf Version", i32 4}65!4 = !{i32 2, !"Debug Info Version", i32 3}66!5 = !{i32 1, !"wchar_size", i32 4}67!6 = !{i32 1, !"min_enum_size", i32 4}68!7 = !{!"clang"}69!8 = distinct !DISubprogram(name: "func", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)70!9 = !DISubroutineType(types: !10)71!10 = !{!11, !11}72!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)73!12 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 1, type: !11)74!13 = !DIExpression()75!14 = !DILocation(line: 1, column: 14, scope: !8)76!15 = !DILocalVariable(name: "c", scope: !8, file: !1, line: 3, type: !11)77!16 = !DILocation(line: 3, column: 13, scope: !8)78!17 = !DILocation(line: 4, column: 15, scope: !18)79!18 = distinct !DILexicalBlock(scope: !8, file: !1, line: 4, column: 13)80!19 = !DILocation(line: 4, column: 13, scope: !8)81!20 = !DILocation(line: 6, column: 9, scope: !21)82!21 = distinct !DILexicalBlock(scope: !18, file: !1, line: 4, column: 21)83!22 = !DILocation(line: 7, column: 4, scope: !8)84!23 = !DILocation(line: 8, column: 9, scope: !8)85