1 ; RUN: llc %s -o %t -filetype=obj 2 ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s 3 4 ; Checks that we emit debug info for the block variable declare. 5 ; CHECK: DW_TAG_subprogram 6 ; CHECK: DW_TAG_variable 7 ; fbreg +8, deref, +32 8 ; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (<0x05> 91 08 06 23 20 ) 9 ; CHECK-NEXT: DW_AT_name {{.*}} "block" 10 11 ; Extracted from the clang output for: 12 ; void foo() { 13 ; void (^block)() = ^{ block(); }; 14 ; } 15 16 ; ModuleID = 'foo.m' 17 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 18 target triple = "x86_64-apple-darwin" 19 20 %struct.__block_descriptor = type { i64, i64 } 21 %struct.__block_literal_generic = type { i8*, i32, i32, i8*, %struct.__block_descriptor* } 22 23 @_NSConcreteStackBlock = external global i8* 24 @.str = private unnamed_addr constant [6 x i8] c"v8@?0\00", align 1 25 26 ; Function Attrs: nounwind readnone 27 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 28 29 ; Function Attrs: ssp uwtable 30 define internal void @__foo_block_invoke(i8* %.block_descriptor) #2 !dbg !8 { 31 entry: 32 %.block_descriptor.addr = alloca i8*, align 8 33 %block.addr = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>*, align 8 34 store i8* %.block_descriptor, i8** %.block_descriptor.addr, align 8 35 %0 = load i8*, i8** %.block_descriptor.addr 36 call void @llvm.dbg.value(metadata i8* %0, i64 0, metadata !47, metadata !43), !dbg !66 37 call void @llvm.dbg.declare(metadata i8* %.block_descriptor, metadata !47, metadata !43), !dbg !66 38 %block = bitcast i8* %.block_descriptor to <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>*, !dbg !67 39 store <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>* %block, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>** %block.addr, align 8 40 call void @llvm.dbg.declare(metadata <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>** %block.addr, metadata !68, metadata !69), !dbg !70 41 %block.capture.addr = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, void (...)* }>* %block, i32 0, i32 5, !dbg !71 42 %1 = load void (...)*, void (...)** %block.capture.addr, align 8, !dbg !71 43 %block.literal = bitcast void (...)* %1 to %struct.__block_literal_generic*, !dbg !71 44 %2 = getelementptr inbounds %struct.__block_literal_generic, %struct.__block_literal_generic* %block.literal, i32 0, i32 3, !dbg !71 45 %3 = bitcast %struct.__block_literal_generic* %block.literal to i8*, !dbg !71 46 %4 = load i8*, i8** %2, !dbg !71 47 %5 = bitcast i8* %4 to void (i8*, ...)*, !dbg !71 48 call void (i8*, ...) %5(i8* %3), !dbg !71 49 ret void, !dbg !73 50 } 51 52 ; Function Attrs: nounwind readnone 53 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 54 55 56 attributes #0 = { nounwind ssp uwtable } 57 attributes #1 = { nounwind readnone } 58 attributes #2 = { ssp uwtable } 59 attributes #3 = { nounwind } 60 61 !llvm.dbg.cu = !{!0} 62 !llvm.module.flags = !{!16, !17, !18, !19, !20, !21, !22} 63 !llvm.ident = !{!23} 64 65 !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) 66 !1 = !DIFile(filename: "foo.m", directory: "") 67 !2 = !{} 68 !5 = !DIFile(filename: "foo.m", directory: "") 69 !6 = !DISubroutineType(types: !7) 70 !7 = !{null} 71 !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, variables: !2) 72 !9 = !DISubroutineType(types: !10) 73 !10 = !{null, !11} 74 !11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: null) 75 !13 = !DISubroutineType(types: !14) 76 !14 = !{null, !11, !11} 77 !16 = !{i32 1, !"Objective-C Version", i32 2} 78 !17 = !{i32 1, !"Objective-C Image Info Version", i32 0} 79 !18 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"} 80 !19 = !{i32 4, !"Objective-C Garbage Collection", i32 0} 81 !20 = !{i32 2, !"Dwarf Version", i32 2} 82 !21 = !{i32 2, !"Debug Info Version", i32 3} 83 !22 = !{i32 1, !"PIC Level", i32 2} 84 !23 = !{!"clang version 3.6.0 (trunk 223471)"} 85 !25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !26) 86 !26 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_generic", line: 2, size: 256, flags: DIFlagAppleBlock, file: !1, scope: !5, elements: !27) 87 !27 = !{!28, !29, !31, !32, !36} 88 !28 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", size: 64, align: 64, file: !1, scope: !5, baseType: !11) 89 !29 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", size: 32, align: 32, offset: 64, file: !1, scope: !5, baseType: !30) 90 !30 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 91 !31 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", size: 32, align: 32, offset: 96, file: !1, scope: !5, baseType: !30) 92 !32 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", size: 64, align: 64, offset: 128, file: !1, scope: !5, baseType: !33) 93 !33 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !34) 94 !34 = !DISubroutineType(types: !35) 95 !35 = !{null, null} 96 !36 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 2, size: 64, align: 64, offset: 192, file: !1, scope: !5, baseType: !37) 97 !37 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !38) 98 !38 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor", line: 2, size: 128, flags: DIFlagAppleBlock, file: !1, scope: !5, elements: !39) 99 !39 = !{!40, !42} 100 !40 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", size: 64, align: 64, file: !1, scope: !5, baseType: !41) 101 !41 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) 102 !42 = !DIDerivedType(tag: DW_TAG_member, name: "Size", size: 64, align: 64, offset: 64, file: !1, scope: !5, baseType: !41) 103 !43 = !DIExpression() 104 !47 = !DILocalVariable(name: ".block_descriptor", line: 2, arg: 1, flags: DIFlagArtificial, scope: !8, file: !5, type: !48) 105 !48 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !49) 106 !49 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1", line: 2, size: 320, align: 64, file: !1, scope: !5, elements: !50) 107 !50 = !{!51, !52, !53, !54, !56, !65} 108 !51 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", line: 2, size: 64, align: 64, flags: DIFlagPublic, file: !1, scope: !5, baseType: !11) 109 !52 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", line: 2, size: 32, align: 32, offset: 64, flags: DIFlagPublic, file: !1, scope: !5, baseType: !30) 110 !53 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", line: 2, size: 32, align: 32, offset: 96, flags: DIFlagPublic, file: !1, scope: !5, baseType: !30) 111 !54 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", line: 2, size: 64, align: 64, offset: 128, flags: DIFlagPublic, file: !1, scope: !5, baseType: !55) 112 !55 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !6) 113 !56 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 2, size: 64, align: 64, offset: 192, flags: DIFlagPublic, file: !1, scope: !5, baseType: !57) 114 !57 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !58) 115 !58 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor_withcopydispose", line: 2, size: 256, align: 64, file: !1, elements: !59) 116 !59 = !{!60, !61, !62, !64} 117 !60 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", line: 2, size: 64, align: 64, file: !1, scope: !58, baseType: !41) 118 !61 = !DIDerivedType(tag: DW_TAG_member, name: "Size", line: 2, size: 64, align: 64, offset: 64, file: !1, scope: !58, baseType: !41) 119 !62 = !DIDerivedType(tag: DW_TAG_member, name: "CopyFuncPtr", line: 2, size: 64, align: 64, offset: 128, file: !1, scope: !58, baseType: !63) 120 !63 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11) 121 !64 = !DIDerivedType(tag: DW_TAG_member, name: "DestroyFuncPtr", line: 2, size: 64, align: 64, offset: 192, file: !1, scope: !58, baseType: !63) 122 !65 = !DIDerivedType(tag: DW_TAG_member, name: "block", line: 2, size: 64, align: 64, offset: 256, flags: DIFlagPublic, file: !1, scope: !5, baseType: !25) 123 !66 = !DILocation(line: 2, column: 20, scope: !8) 124 !67 = !DILocation(line: 2, column: 21, scope: !8) 125 !68 = !DILocalVariable(name: "block", line: 2, scope: !8, file: !5, type: !25) 126 !69 = !DIExpression(DW_OP_deref, DW_OP_plus, 32) 127 !70 = !DILocation(line: 2, column: 9, scope: !8) 128 !71 = !DILocation(line: 2, column: 23, scope: !72) 129 !72 = distinct !DILexicalBlock(line: 2, column: 21, file: !1, scope: !8) 130 !73 = !DILocation(line: 2, column: 32, scope: !8) 131
