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1; RUN: opt %s -S -o - -passes=instcombine \2; RUN: | FileCheck %s --implicit-check-not="#dbg_"3 4;; Hand-written (the debug info doesn't necessarily make sense and isn't fully5;; formed). Test salvaging a dbg.assign value and address. Checks and comments6;; are inline.7 8define dso_local void @fun(i32 %x, i32 %y, ptr %p) !dbg !7 {9entry:10 %add = add nsw i32 %x, 1, !dbg !2211 call void @llvm.dbg.assign(metadata i32 %add, metadata !14, metadata !DIExpression(), metadata !28, metadata ptr %p, metadata !DIExpression()), !dbg !1612;; %add is salvaged.13; CHECK: #dbg_assign(i32 %x,{{.+}}!DIExpression(DW_OP_plus_uconst, 1, DW_OP_stack_value),{{.+}}, ptr %p, !DIExpression(),14 15 %add1 = add nsw i32 %x, %y, !dbg !2916 call void @llvm.dbg.assign(metadata i32 %add1, metadata !32, metadata !DIExpression(), metadata !31, metadata ptr %p, metadata !DIExpression()), !dbg !1617;; %add1 is salvaged using a variadic expression.18; CHECK-NEXT: #dbg_assign(!DIArgList(i32 %x, i32 %y), ![[#]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value), ![[#]], ptr %p, !DIExpression(),19 20 %arrayidx0 = getelementptr inbounds i32, ptr %p, i32 021 call void @llvm.dbg.assign(metadata i32 %x, metadata !14, metadata !DIExpression(), metadata !17, metadata ptr %arrayidx0, metadata !DIExpression()), !dbg !1622;; %arrayidx0 is salvaged (zero offset, so the gep is just replaced with %p).23; CHECK-NEXT: #dbg_assign(i32 %x,{{.+}}, !DIExpression(),{{.+}}, ptr %p, !DIExpression(),24 25 %arrayidx1 = getelementptr inbounds i32, ptr %p, i32 126 call void @llvm.dbg.assign(metadata i32 %x, metadata !33, metadata !DIExpression(), metadata !18, metadata ptr %arrayidx1, metadata !DIExpression()), !dbg !1627;; %arrayidx1 is salvaged.28; CHECK-NEXT: #dbg_assign(i32 %x,{{.+}}, !DIExpression(),{{.+}}, ptr %p, !DIExpression(DW_OP_plus_uconst, 4),29 30 %arrayidx2 = getelementptr inbounds i32, ptr %p, i32 %x31 call void @llvm.dbg.assign(metadata i32 %x, metadata !34, metadata !DIExpression(), metadata !19, metadata ptr %arrayidx2, metadata !DIExpression()), !dbg !1632;; Variadic DIExpressions for dbg.assign address component is not supported -33;; set poison.34; CHECK-NEXT: #dbg_assign(i32 %x,{{.+}}, !DIExpression(),{{.+}}, ptr poison, !DIExpression(),35 36 ret void37}38 39declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)40 41!llvm.dbg.cu = !{!0}42!llvm.module.flags = !{!2, !3, !4, !5, !1000}43!llvm.ident = !{!6}44 45!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)46!1 = !DIFile(filename: "test.cpp", directory: "/")47!2 = !{i32 7, !"Dwarf Version", i32 5}48!3 = !{i32 2, !"Debug Info Version", i32 3}49!4 = !{i32 1, !"wchar_size", i32 4}50!5 = !{i32 7, !"uwtable", i32 1}51!6 = !{!"clang version 14.0.0"}52!7 = distinct !DISubprogram(name: "fun", linkageName: "fun", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)53!8 = !DISubroutineType(types: !9)54!9 = !{null, !10, !10}55!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)56!11 = !{!12, !13, !14}57!12 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 2, type: !10)58!13 = !DILocalVariable(name: "y", arg: 2, scope: !7, file: !1, line: 2, type: !10)59!14 = !DILocalVariable(name: "Local", scope: !7, file: !1, line: 3, type: !10)60!16 = !DILocation(line: 0, scope: !7)61!17 = distinct !DIAssignID()62!18 = distinct !DIAssignID()63!19 = distinct !DIAssignID()64!21 = !DILocation(line: 3, column: 3, scope: !7)65!22 = !DILocation(line: 3, column: 17, scope: !7)66!28 = distinct !DIAssignID()67!29 = !DILocation(line: 4, column: 13, scope: !7)68!31 = distinct !DIAssignID()69!32 = !DILocalVariable(name: "Local1", scope: !7, file: !1, line: 3, type: !10)70!33 = !DILocalVariable(name: "Local2", scope: !7, file: !1, line: 3, type: !10)71!34 = !DILocalVariable(name: "Local3", scope: !7, file: !1, line: 3, type: !10)72!35 = !DILocalVariable(name: "Local4", scope: !7, file: !1, line: 3, type: !10)73!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}74