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1; RUN: llc %s -o %t -filetype=obj2; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s3 4; Checks that we emit debug info for the block variable declare.5; CHECK: DW_TAG_subprogram6; CHECK: DW_TAG_variable7; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_fbreg +8, DW_OP_deref, DW_OP_plus_uconst 0x20)8; CHECK-NEXT: DW_AT_name {{.*}} "block"9 10; Extracted from the clang output for:11; void foo() {12; void (^block)() = ^{ block(); };13; }14 15; ModuleID = 'foo.m'16target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"17target triple = "x86_64-apple-darwin"18 19%struct.__block_descriptor = type { i64, i64 }20%struct.__block_literal_generic = type { ptr, i32, i32, ptr, ptr }21 22@_NSConcreteStackBlock = external global ptr23@.str = private unnamed_addr constant [6 x i8] c"v8@?0\00", align 124 25; Function Attrs: nounwind readnone26declare void @llvm.dbg.declare(metadata, metadata, metadata) #127 28; Function Attrs: ssp uwtable29define internal void @__foo_block_invoke(ptr %.block_descriptor) #2 !dbg !8 {30entry:31 %.block_descriptor.addr = alloca ptr, align 832 %block.addr = alloca ptr, align 833 store ptr %.block_descriptor, ptr %.block_descriptor.addr, align 834 %0 = load ptr, ptr %.block_descriptor.addr35 call void @llvm.dbg.value(metadata ptr %0, metadata !47, metadata !43), !dbg !6636 call void @llvm.dbg.declare(metadata ptr %.block_descriptor, metadata !47, metadata !43), !dbg !6637 store ptr %.block_descriptor, ptr %block.addr, align 838 call void @llvm.dbg.declare(metadata ptr %block.addr, metadata !68, metadata !69), !dbg !7039 %block.capture.addr = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %.block_descriptor, i32 0, i32 5, !dbg !7140 %1 = load ptr, ptr %block.capture.addr, align 8, !dbg !7141 %2 = getelementptr inbounds %struct.__block_literal_generic, ptr %1, i32 0, i32 3, !dbg !7142 %3 = load ptr, ptr %2, !dbg !7143 call void (ptr, ...) %3(ptr %1), !dbg !7144 ret void, !dbg !7345}46 47; Function Attrs: nounwind readnone48declare void @llvm.dbg.value(metadata, metadata, metadata) #149 50 51attributes #0 = { nounwind ssp uwtable }52attributes #1 = { nounwind readnone }53attributes #2 = { ssp uwtable }54attributes #3 = { nounwind }55 56!llvm.dbg.cu = !{!0}57!llvm.module.flags = !{!16, !17, !18, !19, !20, !21, !22}58!llvm.ident = !{!23}59 60!0 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "clang version 3.6.0 (trunk 223471)", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)61!1 = !DIFile(filename: "foo.m", directory: "")62!2 = !{}63!5 = !DIFile(filename: "foo.m", directory: "")64!6 = !DISubroutineType(types: !7)65!7 = !{null}66!8 = distinct !DISubprogram(name: "__foo_block_invoke", line: 2, isLocal: true, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !9, retainedNodes: !2)67!9 = !DISubroutineType(types: !10)68!10 = !{null, !11}69!11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: null)70!13 = !DISubroutineType(types: !14)71!14 = !{null, !11, !11}72!16 = !{i32 1, !"Objective-C Version", i32 2}73!17 = !{i32 1, !"Objective-C Image Info Version", i32 0}74!18 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}75!19 = !{i32 4, !"Objective-C Garbage Collection", i32 0}76!20 = !{i32 2, !"Dwarf Version", i32 2}77!21 = !{i32 2, !"Debug Info Version", i32 3}78!22 = !{i32 1, !"PIC Level", i32 2}79!23 = !{!"clang version 3.6.0 (trunk 223471)"}80!25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !26)81!26 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_generic", line: 2, size: 256, flags: DIFlagAppleBlock, file: !1, scope: !5, elements: !27)82!27 = !{!28, !29, !31, !32, !36}83!28 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", size: 64, align: 64, file: !1, scope: !5, baseType: !11)84!29 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", size: 32, align: 32, offset: 64, file: !1, scope: !5, baseType: !30)85!30 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)86!31 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", size: 32, align: 32, offset: 96, file: !1, scope: !5, baseType: !30)87!32 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", size: 64, align: 64, offset: 128, file: !1, scope: !5, baseType: !33)88!33 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !34)89!34 = !DISubroutineType(types: !35)90!35 = !{null, null}91!36 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 2, size: 64, align: 64, offset: 192, file: !1, scope: !5, baseType: !37)92!37 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !38)93!38 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor", line: 2, size: 128, flags: DIFlagAppleBlock, file: !1, scope: !5, elements: !39)94!39 = !{!40, !42}95!40 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", size: 64, align: 64, file: !1, scope: !5, baseType: !41)96!41 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)97!42 = !DIDerivedType(tag: DW_TAG_member, name: "Size", size: 64, align: 64, offset: 64, file: !1, scope: !5, baseType: !41)98!43 = !DIExpression()99!47 = !DILocalVariable(name: ".block_descriptor", line: 2, arg: 1, flags: DIFlagArtificial, scope: !8, file: !5, type: !48)100!48 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !49)101!49 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1", line: 2, size: 320, align: 64, file: !1, scope: !5, elements: !50)102!50 = !{!51, !52, !53, !54, !56, !65}103!51 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", line: 2, size: 64, align: 64, flags: DIFlagPublic, file: !1, scope: !5, baseType: !11)104!52 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", line: 2, size: 32, align: 32, offset: 64, flags: DIFlagPublic, file: !1, scope: !5, baseType: !30)105!53 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", line: 2, size: 32, align: 32, offset: 96, flags: DIFlagPublic, file: !1, scope: !5, baseType: !30)106!54 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", line: 2, size: 64, align: 64, offset: 128, flags: DIFlagPublic, file: !1, scope: !5, baseType: !55)107!55 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !6)108!56 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 2, size: 64, align: 64, offset: 192, flags: DIFlagPublic, file: !1, scope: !5, baseType: !57)109!57 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !58)110!58 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor_withcopydispose", line: 2, size: 256, align: 64, file: !1, elements: !59)111!59 = !{!60, !61, !62, !64}112!60 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", line: 2, size: 64, align: 64, file: !1, scope: !58, baseType: !41)113!61 = !DIDerivedType(tag: DW_TAG_member, name: "Size", line: 2, size: 64, align: 64, offset: 64, file: !1, scope: !58, baseType: !41)114!62 = !DIDerivedType(tag: DW_TAG_member, name: "CopyFuncPtr", line: 2, size: 64, align: 64, offset: 128, file: !1, scope: !58, baseType: !63)115!63 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11)116!64 = !DIDerivedType(tag: DW_TAG_member, name: "DestroyFuncPtr", line: 2, size: 64, align: 64, offset: 192, file: !1, scope: !58, baseType: !63)117!65 = !DIDerivedType(tag: DW_TAG_member, name: "block", line: 2, size: 64, align: 64, offset: 256, flags: DIFlagPublic, file: !1, scope: !5, baseType: !25)118!66 = !DILocation(line: 2, column: 20, scope: !8)119!67 = !DILocation(line: 2, column: 21, scope: !8)120!68 = !DILocalVariable(name: "block", line: 2, scope: !8, file: !5, type: !25)121!69 = !DIExpression(DW_OP_deref, DW_OP_plus_uconst, 32)122!70 = !DILocation(line: 2, column: 9, scope: !8)123!71 = !DILocation(line: 2, column: 23, scope: !72)124!72 = distinct !DILexicalBlock(line: 2, column: 21, file: !1, scope: !8)125!73 = !DILocation(line: 2, column: 32, scope: !8)126