1; RUN: llc %s --stop-after=finalize-isel -o - | FileCheck %s 2 3;; Check the DBG_VALUE which is salvaged from the dbg.value using an otherwised 4;; unused value is emitted at the correct position in the function. 5;; Prior (-) to patching (+), these DBG_VALUEs would sink to the bottom of the 6;; function: 7;; │ bb.1.if.then: 8;; │- $rax = COPY %1 9;; │ DBG_VALUE 0, $noreg, !9, !DIExpression(DW_OP_plus_uconst, 4, DW_OP_stack_value) 10;; │+ $rax = COPY %1 11;; │ RET 0, $rax 12 13; CHECK: bb.1.if.then: 14; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[#]], !DIExpression(DW_OP_plus_uconst, 4, DW_OP_stack_value) 15 16target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 17target triple = "x86_64-unknown-linux-gnu" 18 19define void @badger(ptr sret(i64) %sret) !dbg !5 { 20entry: 21 %f.i = getelementptr i8, ptr null, i64 4 22 br label %if.then 23 24if.then: ; preds = %entry 25 tail call void @llvm.dbg.value(metadata ptr %f.i, metadata !9, metadata !DIExpression()), !dbg !11 26 ret void 27} 28 29declare void @llvm.dbg.value(metadata, metadata, metadata) 30 31!llvm.dbg.cu = !{!0} 32!llvm.debugify = !{!2, !3} 33!llvm.module.flags = !{!4} 34 35!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug) 36!1 = !DIFile(filename: "test.ll", directory: "/") 37!2 = !{i32 3} 38!3 = !{i32 1} 39!4 = !{i32 2, !"Debug Info Version", i32 3} 40!5 = distinct !DISubprogram(name: "_ZNK1d1gEv", linkageName: "_ZNK1d1gEv", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8) 41!6 = !DISubroutineType(types: !7) 42!7 = !{} 43!8 = !{!9} 44!9 = !DILocalVariable(name: "1", scope: !5, file: !1, line: 1, type: !10) 45!10 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned) 46!11 = !DILocation(line: 5, column: 1, scope: !5) 47