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1; Similar to DW_AT_object_pointer.ll but tests that we correctly2; encode the object pointer index even if it's not the first argument3; of the subprogram (which isn't something the major compilers do,4; but is not mandated by DWARF).5 6; RUN: llc -mtriple=x86_64-apple-darwin -debugger-tune=lldb -dwarf-version=5 -filetype=obj < %s | \7; RUN: llvm-dwarfdump -v -debug-info - | FileCheck %s --check-prefixes=CHECK8 9; CHECK: DW_TAG_class_type10; CHECK: [[DECL:0x[0-9a-f]+]]: DW_TAG_subprogram11; CHECK: DW_AT_name {{.*}} "A"12; CHECK: DW_AT_object_pointer [DW_FORM_implicit_const] (2)13;14; CHECK: DW_TAG_subprogram15; CHECK: DW_AT_object_pointer [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[PARAM:0x[0-9a-f]*]]})16; CHECK: DW_AT_specification [DW_FORM_ref4] (cu + {{.*}} => {[[DECL]]}17; CHECK: DW_TAG_formal_parameter18; CHECK: DW_TAG_formal_parameter19; CHECK-NOT: "this"20; CHECK: [[PARAM]]: DW_TAG_formal_parameter21; CHECK: DW_AT_name22; CHECK-SAME: = "this")23; CHECK: DW_TAG_formal_parameter24 25%class.A = type { i8 }26 27define linkonce_odr noundef ptr @_ZN1AC1Eii(ptr noundef nonnull returned align 1 dereferenceable(1) %this, i32 noundef %x, i32 noundef %y, i32 noundef %z) !dbg !24 {28entry:29 %this.addr = alloca ptr, align 830 %x.addr = alloca i32, align 431 %y.addr = alloca i32, align 432 %z.addr = alloca i32, align 433 store ptr %this, ptr %this.addr, align 834 #dbg_declare(ptr %this.addr, !26, !DIExpression(), !28)35 store i32 %x, ptr %x.addr, align 436 #dbg_declare(ptr %x.addr, !29, !DIExpression(), !30)37 store i32 %y, ptr %y.addr, align 438 #dbg_declare(ptr %y.addr, !31, !DIExpression(), !32)39 store i32 %z, ptr %y.addr, align 440 #dbg_declare(ptr %z.addr, !36, !DIExpression(), !37)41 %this1 = load ptr, ptr %this.addr, align 842 %0 = load i32, ptr %x.addr, align 4, !dbg !3343 %1 = load i32, ptr %y.addr, align 4, !dbg !3344 %2 = load i32, ptr %z.addr, align 4, !dbg !3345 ret ptr %this1, !dbg !3446}47 48!llvm.dbg.cu = !{!2}49!llvm.module.flags = !{!12, !13}50 51!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())52!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 3, type: !5, isLocal: false, isDefinition: true)53!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 20.0.0git", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: Apple, sysroot: "/")54!3 = !DIFile(filename: "object_ptr.cpp", directory: "/tmp")55!4 = !{!0}56!5 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "A", file: !3, line: 1, size: 8, flags: DIFlagTypePassByValue | DIFlagNonTrivial, elements: !6, identifier: "_ZTS1A")57!6 = !{!7}58!7 = !DISubprogram(name: "A", scope: !5, file: !3, line: 2, type: !8, scopeLine: 2, flags: DIFlagPublic | DIFlagPrototyped, spFlags: 0)59!8 = !DISubroutineType(types: !9)60!9 = !{null, !11, !11, !10, !35}61!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)62!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)63!12 = !{i32 7, !"Dwarf Version", i32 5}64!13 = !{i32 2, !"Debug Info Version", i32 3}65!18 = !{!"clang version 20.0.0git"}66!24 = distinct !DISubprogram(name: "A", linkageName: "_ZN1AC1Eii", scope: !5, file: !3, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, declaration: !7, retainedNodes: !25)67!25 = !{}68!26 = !DILocalVariable(name: "this", arg: 3, scope: !24, type: !27, flags: DIFlagArtificial | DIFlagObjectPointer)69!27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)70!28 = !DILocation(line: 0, scope: !24)71!29 = !DILocalVariable(name: "x", arg: 2, scope: !24, file: !3, line: 2, type: !11)72!30 = !DILocation(line: 2, column: 19, scope: !24)73!31 = !DILocalVariable(name: "y", arg: 1, scope: !24, file: !3, line: 2, type: !11)74!32 = !DILocation(line: 2, column: 26, scope: !24)75!33 = !DILocation(line: 2, column: 29, scope: !24)76!34 = !DILocation(line: 2, column: 30, scope: !24)77!35 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)78!36 = !DILocalVariable(name: "z", arg: 4, scope: !24, file: !3, line: 2, type: !35)79!37 = !DILocation(line: 2, column: 35, scope: !24)80