1; RUN: llc %s -o - -stop-after=machine-sink \ 2; RUN: -experimental-debug-variable-locations=true \ 3; RUN: | FileCheck %s --check-prefixes=DYN_LABEL 4; RUN: llc %s -o - -stop-before=phi-node-elimination \ 5; RUN: -experimental-debug-variable-locations=true \ 6; RUN: | FileCheck %s --check-prefixes=DYN_LOWERED 7 8;; This is a copy of DebugInfo/COFF/types-array-advanced.ll, checking that 9;; DYN_ALLOCAs correctly have instruction references updated. This is compiled 10;; from LLVM-IR because the "hasDynAlloca" flag isn't serialised to MIR, for 11;; complicated reasons, that means we can't store as MIR. 12 13;; The alloca instruction should be labelled, and we should refer to operand 2, 14;; which happens to be a def of $esp 15; DYN_LABEL: DYN_ALLOCA_32 {{.*}} debug-instr-number 1, 16; DYN_LABEL: DBG_INSTR_REF {{.+}}, dbg-instr-ref(1, 2) 17 18;; Once lowered, on win32 _chkstk alters the stack pointer. We should label the 19;; call and it's SP operand, plus check for a value substitution. 20; DYN_LOWERED: debugValueSubstitutions: 21; DYN_LOWERED-NEXT: - { srcinst: 1, srcop: 2, dstinst: 2, dstop: 6, subreg: 0 } 22;; Test that it's operand six, and labelled. 23; DYN_LOWERED: CALLpcrel32 &_chkstk, implicit $esp, implicit $ssp, 24; DYN_LOWERED-SAME: implicit killed $eax, implicit $esp, implicit-def dead $eax, 25; DYN_LOWERED-SAME: implicit-def $esp, implicit-def dead $eflags, 26; DYN_LOWERED-SAME: debug-instr-number 2, 27 28source_filename = "test/DebugInfo/COFF/types-array-advanced.ll" 29target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 30target triple = "i686-pc-windows-msvc18.0.31101" 31 32%struct.incomplete_struct = type { i32 } 33 34@"\01?multi_dim_arr@@3PAY146DA" = global [2 x [5 x [7 x i8]]] zeroinitializer, align 1, !dbg !0 35@"\01?p_incomplete_struct_arr@@3PAY02Uincomplete_struct@@A" = global ptr null, align 4, !dbg !6 36@"\01?incomplete_struct_arr@@3PAUincomplete_struct@@A" = global [3 x %struct.incomplete_struct] zeroinitializer, align 4, !dbg !16 37@"\01?typedef_arr@@3SDHD" = constant [4 x i32] zeroinitializer, align 4, !dbg !18 38 39; Function Attrs: nounwind 40define void @"\01?foo@@YAXH@Z"(i32 %x) #0 !dbg !35 { 41entry: 42 %x.addr = alloca i32, align 4 43 %saved_stack = alloca ptr, align 4 44 store i32 %x, ptr %x.addr, align 4 45 call void @llvm.dbg.declare(metadata ptr %x.addr, metadata !38, metadata !39), !dbg !40 46 %0 = load i32, ptr %x.addr, align 4, !dbg !41 47 %1 = call ptr @llvm.stacksave(), !dbg !42 48 store ptr %1, ptr %saved_stack, align 4, !dbg !42 49 %vla = alloca i32, i32 %0, align 4, !dbg !42 50 call void @llvm.dbg.declare(metadata ptr %vla, metadata !43, metadata !47), !dbg !48 51 store i32 0, ptr %vla, align 4, !dbg !50 52 %2 = load ptr, ptr %saved_stack, align 4, !dbg !51 53 call void @llvm.stackrestore(ptr %2), !dbg !51 54 ret void, !dbg !51 55} 56 57; Function Attrs: nounwind readnone 58declare void @llvm.dbg.declare(metadata, metadata, metadata) 59 60; Function Attrs: nounwind 61declare ptr @llvm.stacksave() 62 63; Function Attrs: nounwind 64declare void @llvm.stackrestore(ptr) 65 66!llvm.dbg.cu = !{!2} 67!llvm.module.flags = !{!32, !33} 68!llvm.ident = !{!34} 69 70!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 71!1 = !DIGlobalVariable(name: "multi_dim_arr", linkageName: "\01?multi_dim_arr@@3PAY146DA", scope: !2, file: !3, line: 1, type: !26, isLocal: false, isDefinition: true) 72!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) 73!3 = !DIFile(filename: "t.cpp", directory: "/") 74!4 = !{} 75!5 = !{!0, !6, !16, !18} 76!6 = distinct !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) 77!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) 78!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 32, align: 32) 79!9 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, elements: !14) 80!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "incomplete_struct", file: !3, line: 4, size: 32, align: 32, elements: !11, identifier: ".?AUincomplete_struct@@") 81!11 = !{!12} 82!12 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !10, file: !3, line: 5, baseType: !13, size: 32, align: 32) 83!13 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 84!14 = !{!15} 85!15 = !DISubrange(count: 3) 86!16 = distinct !DIGlobalVariableExpression(var: !17, expr: !DIExpression()) 87!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) 88!18 = distinct !DIGlobalVariableExpression(var: !19, expr: !DIExpression()) 89!19 = !DIGlobalVariable(name: "typedef_arr", linkageName: "\01?typedef_arr@@3SDHD", scope: !2, file: !3, line: 14, type: !20, isLocal: false, isDefinition: true) 90!20 = !DICompositeType(tag: DW_TAG_array_type, baseType: !21, size: 128, align: 32, elements: !24) 91!21 = !DIDerivedType(tag: DW_TAG_typedef, name: "T_INT", file: !3, line: 13, baseType: !22) 92!22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !23) 93!23 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !13) 94!24 = !{!25} 95!25 = !DISubrange(count: 4) 96!26 = !DICompositeType(tag: DW_TAG_array_type, baseType: !27, size: 560, align: 8, elements: !28) 97!27 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 98!28 = !{!29, !30, !31} 99!29 = !DISubrange(count: 2) 100!30 = !DISubrange(count: 5) 101!31 = !DISubrange(count: 7) 102!32 = !{i32 2, !"CodeView", i32 1} 103!33 = !{i32 2, !"Debug Info Version", i32 3} 104!34 = !{!"clang version 3.9.0 (trunk 273874)"} 105!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) 106!36 = !DISubroutineType(types: !37) 107!37 = !{null, !13} 108!38 = !DILocalVariable(name: "x", arg: 1, scope: !35, file: !3, line: 8, type: !13) 109!39 = !DIExpression() 110!40 = !DILocation(line: 8, column: 14, scope: !35) 111!41 = !DILocation(line: 9, column: 21, scope: !35) 112!42 = !DILocation(line: 9, column: 4, scope: !35) 113!43 = !DILocalVariable(name: "dyn_size_arr", scope: !35, file: !3, line: 9, type: !44) 114!44 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, align: 32, elements: !45) 115!45 = !{!46} 116!46 = !DISubrange(count: -1) 117!47 = !DIExpression(DW_OP_deref) 118!48 = !DILocation(line: 9, column: 8, scope: !35) 119!49 = !DILocation(line: 10, column: 4, scope: !35) 120!50 = !DILocation(line: 10, column: 20, scope: !35) 121!51 = !DILocation(line: 11, column: 1, scope: !35) 122 123