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1; RUN: llc %s -stop-before=finalize-isel -o - \2; RUN: -experimental-debug-variable-locations=true \3; RUN: | FileCheck %s4 5;; Copy of DebugInfo/COFF/types-array-advanced.ll. This features a dbg.declare6;; of something (dynamic alloca) that isn't an argument, causing a SDDbgValue7;; with the indirect flag set to be emitted. Test that it's preserved in8;; instruction referencing mode -- we don't have an IsIndirect flag on9;; DBG_INSTR_REF, so it gets encoded as an additional DW_OP_deref.10;;11;; NB: the original test has an additional spurious DW_OP_deref in the12;; dbg.declare's arguments, which is preserved here, translating to two derefs.13 14; CHECK: DBG_INSTR_REF !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_deref, DW_OP_deref), dbg-instr-ref(1, 2)15 16source_filename = "test/DebugInfo/COFF/types-array-advanced.ll"17target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"18target triple = "i686-pc-windows-msvc18.0.31101"19 20%struct.incomplete_struct = type { i32 }21 22@"\01?multi_dim_arr@@3PAY146DA" = global [2 x [5 x [7 x i8]]] zeroinitializer, align 1, !dbg !023@"\01?p_incomplete_struct_arr@@3PAY02Uincomplete_struct@@A" = global ptr null, align 4, !dbg !624@"\01?incomplete_struct_arr@@3PAUincomplete_struct@@A" = global [3 x %struct.incomplete_struct] zeroinitializer, align 4, !dbg !1625@"\01?typedef_arr@@3SDHD" = constant [4 x i32] zeroinitializer, align 4, !dbg !1826 27; Function Attrs: nounwind28define void @"\01?foo@@YAXH@Z"(i32 %x) #0 !dbg !35 {29entry:30 %x.addr = alloca i32, align 431 %saved_stack = alloca ptr, align 432 store i32 %x, ptr %x.addr, align 433 %0 = load i32, ptr %x.addr, align 4, !dbg !4134 %1 = call ptr @llvm.stacksave(), !dbg !4235 store ptr %1, ptr %saved_stack, align 4, !dbg !4236 %vla = alloca i32, i32 %0, align 4, !dbg !4237 ;; This dbg.declare turns into a DBG_INSTR_REF, rather than an argument38 ;; DBG_VALUE. It needs to keep the extra indirectness.39 call void @llvm.dbg.declare(metadata ptr %vla, metadata !43, metadata !47), !dbg !4840 store i32 0, ptr %vla, align 4, !dbg !5041 %2 = load ptr, ptr %saved_stack, align 4, !dbg !5142 call void @llvm.stackrestore(ptr %2), !dbg !5143 ret void, !dbg !5144}45 46; Function Attrs: nounwind readnone47declare void @llvm.dbg.declare(metadata, metadata, metadata)48 49; Function Attrs: nounwind50declare ptr @llvm.stacksave()51 52; Function Attrs: nounwind53declare void @llvm.stackrestore(ptr)54 55!llvm.dbg.cu = !{!2}56!llvm.module.flags = !{!32, !33}57!llvm.ident = !{!34}58 59!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())60!1 = !DIGlobalVariable(name: "multi_dim_arr", linkageName: "\01?multi_dim_arr@@3PAY146DA", scope: !2, file: !3, line: 1, type: !26, isLocal: false, isDefinition: true)61!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.9.0 (trunk 273874)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)62!3 = !DIFile(filename: "t.cpp", directory: "/")63!4 = !{}64!5 = !{!0, !6, !16, !18}65!6 = distinct !DIGlobalVariableExpression(var: !7, expr: !DIExpression())66!7 = !DIGlobalVariable(name: "p_incomplete_struct_arr", linkageName: "\01?p_incomplete_struct_arr@@3PAY02Uincomplete_struct@@A", scope: !2, file: !3, line: 3, type: !8, isLocal: false, isDefinition: true)67!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 32, align: 32)68!9 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, elements: !14)69!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "incomplete_struct", file: !3, line: 4, size: 32, align: 32, elements: !11, identifier: ".?AUincomplete_struct@@")70!11 = !{!12}71!12 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !10, file: !3, line: 5, baseType: !13, size: 32, align: 32)72!13 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)73!14 = !{!15}74!15 = !DISubrange(count: 3)75!16 = distinct !DIGlobalVariableExpression(var: !17, expr: !DIExpression())76!17 = !DIGlobalVariable(name: "incomplete_struct_arr", linkageName: "\01?incomplete_struct_arr@@3PAUincomplete_struct@@A", scope: !2, file: !3, line: 6, type: !9, isLocal: false, isDefinition: true)77!18 = distinct !DIGlobalVariableExpression(var: !19, expr: !DIExpression())78!19 = !DIGlobalVariable(name: "typedef_arr", linkageName: "\01?typedef_arr@@3SDHD", scope: !2, file: !3, line: 14, type: !20, isLocal: false, isDefinition: true)79!20 = !DICompositeType(tag: DW_TAG_array_type, baseType: !21, size: 128, align: 32, elements: !24)80!21 = !DIDerivedType(tag: DW_TAG_typedef, name: "T_INT", file: !3, line: 13, baseType: !22)81!22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !23)82!23 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !13)83!24 = !{!25}84!25 = !DISubrange(count: 4)85!26 = !DICompositeType(tag: DW_TAG_array_type, baseType: !27, size: 560, align: 8, elements: !28)86!27 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)87!28 = !{!29, !30, !31}88!29 = !DISubrange(count: 2)89!30 = !DISubrange(count: 5)90!31 = !DISubrange(count: 7)91!32 = !{i32 2, !"CodeView", i32 1}92!33 = !{i32 2, !"Debug Info Version", i32 3}93!34 = !{!"clang version 3.9.0 (trunk 273874)"}94!35 = distinct !DISubprogram(name: "foo", linkageName: "\01?foo@@YAXH@Z", scope: !3, file: !3, line: 8, type: !36, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)95!36 = !DISubroutineType(types: !37)96!37 = !{null, !13}97!38 = !DILocalVariable(name: "x", arg: 1, scope: !35, file: !3, line: 8, type: !13)98!39 = !DIExpression()99!40 = !DILocation(line: 8, column: 14, scope: !35)100!41 = !DILocation(line: 9, column: 21, scope: !35)101!42 = !DILocation(line: 9, column: 4, scope: !35)102!43 = !DILocalVariable(name: "dyn_size_arr", scope: !35, file: !3, line: 9, type: !44)103!44 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, align: 32, elements: !45)104!45 = !{!46}105!46 = !DISubrange(count: -1)106!47 = !DIExpression(DW_OP_deref)107!48 = !DILocation(line: 9, column: 8, scope: !35)108!49 = !DILocation(line: 10, column: 4, scope: !35)109!50 = !DILocation(line: 10, column: 20, scope: !35)110!51 = !DILocation(line: 11, column: 1, scope: !35)111 112