1; Generated from tools/clang/test/CodeGen/debug-info-packed-struct.c 2; ModuleID = 'llvm/tools/clang/test/CodeGen/debug-info-packed-struct.c' 3source_filename = "test/DebugInfo/X86/debug-info-packed-struct.ll" 4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-apple-darwin" 6; RUN: llc -O0 -filetype=obj -o %t.o %s 7; RUN: llvm-dwarfdump -v -debug-info %t.o | FileCheck %s 8 9; // --------------------------------------------------------------------- 10; // Not packed. 11; // --------------------------------------------------------------------- 12; struct size8 { 13; int i : 4; 14; long long l : 60; 15; }; 16; struct layout0 { 17; char l0_ofs0; 18; struct size8 l0_ofs8; 19; int l0_ofs16 : 1; 20; } l0; 21 22%struct.layout0 = type { i8, %struct.size8, i8 } 23%struct.size8 = type { i64 } 24%struct.layout1 = type <{ i8, %struct.size8_anon, i8, [2 x i8] }> 25%struct.size8_anon = type { i64 } 26; CHECK: DW_TAG_structure_type 27; CHECK: DW_AT_name {{.*}} "layout0" 28; CHECK: DW_AT_byte_size {{.*}} (0x18) 29; CHECK: DW_TAG_member 30; CHECK: DW_AT_name {{.*}} "l0_ofs0" 31; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x0) 32; CHECK: DW_TAG_member 33; CHECK: DW_AT_name {{.*}} "l0_ofs8" 34; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x8) 35; CHECK: DW_TAG_member 36; CHECK: DW_AT_name {{.*}} "l0_ofs16" 37; CHECK: DW_AT_bit_size {{.*}} (0x01) 38; CHECK: DW_AT_bit_offset {{.*}} (0x1f) 39; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x10) 40 41; // --------------------------------------------------------------------- 42; // Implicitly packed. 43; // --------------------------------------------------------------------- 44; struct size8_anon { 45; int : 4; 46; long long : 60; 47; }; 48; struct layout1 { 49; char l1_ofs0; 50; struct size8_anon l1_ofs1; 51; int l1_ofs9 : 1; 52; } l1; 53 54%struct.layout2 = type <{ i8, %struct.size8_pack1, i8 }> 55%struct.size8_pack1 = type { i64 } 56%struct.layout3 = type <{ i8, [3 x i8], %struct.size8_pack4, i8, [3 x i8] }> 57%struct.size8_pack4 = type { i64 } 58 59; CHECK: DW_TAG_structure_type 60; CHECK: DW_AT_name {{.*}} "layout1" 61; CHECK: DW_AT_byte_size {{.*}} (0x0c) 62; CHECK: DW_TAG_member 63; CHECK: DW_AT_name {{.*}} "l1_ofs0" 64; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x0) 65; CHECK: DW_TAG_member 66; CHECK: DW_AT_name {{.*}} "l1_ofs1" 67; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x1) 68; CHECK: DW_TAG_member 69; CHECK: DW_AT_name {{.*}} "l1_ofs9" 70; CHECK: DW_AT_byte_size {{.*}} (0x04) 71; CHECK: DW_AT_bit_size {{.*}} (0x01) 72; CHECK: DW_AT_bit_offset {{.*}} (0x17) 73; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x8) 74 75; // --------------------------------------------------------------------- 76; // Explicitly packed. 77; // --------------------------------------------------------------------- 78; #pragma pack(1) 79; struct size8_pack1 { 80; int i : 4; 81; long long l : 60; 82; }; 83; struct layout2 { 84; char l2_ofs0; 85; struct size8_pack1 l2_ofs1; 86; int l2_ofs9 : 1; 87; } l2; 88; #pragma pack() 89 90@l0 = common global %struct.layout0 zeroinitializer, align 8, !dbg !0 91@l1 = common global %struct.layout1 zeroinitializer, align 4, !dbg !6 92; CHECK: DW_TAG_structure_type 93; CHECK: DW_AT_name {{.*}} "layout2" 94; CHECK: DW_AT_byte_size {{.*}} (0x0a) 95; CHECK: DW_TAG_member 96; CHECK: DW_AT_name {{.*}} "l2_ofs0" 97; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x0) 98; CHECK: DW_TAG_member 99; CHECK: DW_AT_name {{.*}} "l2_ofs1" 100; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x1) 101; CHECK: DW_TAG_member 102; CHECK: DW_AT_name {{.*}} "l2_ofs9" 103; CHECK: DW_AT_byte_size {{.*}} (0x04) 104; CHECK: DW_AT_bit_size {{.*}} (0x01) 105; CHECK: DW_AT_bit_offset {{.*}} (0x17) 106; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x8) 107 108; // --------------------------------------------------------------------- 109; // Explicitly packed with different alignment. 110; // --------------------------------------------------------------------- 111; #pragma pack(4) 112; struct size8_pack4 { 113; int i : 4; 114; long long l : 60; 115; }; 116; struct layout3 { 117; char l3_ofs0; 118; struct size8_pack4 l3_ofs4; 119; int l3_ofs12 : 1; 120; } l 3; 121; #pragma pack() 122 123@l2 = common global %struct.layout2 zeroinitializer, align 1, !dbg !17 124@l3 = common global %struct.layout3 zeroinitializer, align 4, !dbg !29 125; CHECK: DW_TAG_structure_type 126; CHECK: DW_AT_name {{.*}} "layout3" 127; CHECK: DW_AT_byte_size {{.*}} (0x10) 128; CHECK: DW_TAG_member 129; CHECK: DW_AT_name {{.*}} "l3_ofs0" 130; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x0) 131; CHECK: DW_TAG_member 132; CHECK: DW_AT_name {{.*}} "l3_ofs4" 133; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x4) 134; CHECK: DW_TAG_member 135; CHECK: DW_AT_name {{.*}} "l3_ofs12" 136; CHECK: DW_AT_byte_size {{.*}} (0x04) 137; CHECK: DW_AT_bit_size {{.*}} (0x01) 138; CHECK: DW_AT_bit_offset {{.*}} (0x1f) 139; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0xc) 140 141!llvm.dbg.cu = !{!2} 142!llvm.module.flags = !{!49, !50} 143!llvm.ident = !{!51} 144 145!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 146!1 = !DIGlobalVariable(name: "l0", scope: !2, file: !8, line: 88, type: !40, isLocal: false, isDefinition: true) 147!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.7.0 (trunk 240791) (llvm/trunk 240790)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4, globals: !5, imports: !4) 148!3 = !DIFile(filename: "/llvm/tools/clang/test/CodeGen/<stdin>", directory: "/llvm/_build.ninja.release") 149!4 = !{} 150!5 = !{!0, !6, !17, !29} 151!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) 152!7 = !DIGlobalVariable(name: "l1", scope: !2, file: !8, line: 89, type: !9, isLocal: false, isDefinition: true) 153!8 = !DIFile(filename: "/llvm/tools/clang/test/CodeGen/debug-info-packed-struct.c", directory: "/llvm/_build.ninja.release") 154!9 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout1", file: !8, line: 34, size: 96, elements: !10) 155!10 = !{!11, !13, !15} 156!11 = !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs0", scope: !9, file: !8, line: 35, baseType: !12, size: 8) 157!12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 158!13 = !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs1", scope: !9, file: !8, line: 36, baseType: !14, size: 64, offset: 8) 159!14 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8_anon", file: !8, line: 30, size: 64, elements: !4) 160!15 = !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs9", scope: !9, file: !8, line: 37, baseType: !16, size: 1, offset: 72, flags: DIFlagBitField) 161!16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 162!17 = !DIGlobalVariableExpression(var: !18, expr: !DIExpression()) 163!18 = !DIGlobalVariable(name: "l2", scope: !2, file: !8, line: 90, type: !19, isLocal: false, isDefinition: true) 164!19 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout2", file: !8, line: 54, size: 80, elements: !20) 165!20 = !{!21, !22, !28} 166!21 = !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs0", scope: !19, file: !8, line: 55, baseType: !12, size: 8) 167!22 = !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs1", scope: !19, file: !8, line: 56, baseType: !23, size: 64, offset: 8) 168!23 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8_pack1", file: !8, line: 50, size: 64, elements: !24) 169!24 = !{!25, !26} 170!25 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !23, file: !8, line: 51, baseType: !16, size: 4, flags: DIFlagBitField) 171!26 = !DIDerivedType(tag: DW_TAG_member, name: "l", scope: !23, file: !8, line: 52, baseType: !27, size: 60, offset: 4, flags: DIFlagBitField) 172!27 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) 173!28 = !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs9", scope: !19, file: !8, line: 57, baseType: !16, size: 1, offset: 72, flags: DIFlagBitField) 174!29 = !DIGlobalVariableExpression(var: !30, expr: !DIExpression()) 175!30 = !DIGlobalVariable(name: "l3", scope: !2, file: !8, line: 91, type: !31, isLocal: false, isDefinition: true) 176!31 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout3", file: !8, line: 76, size: 128, elements: !32) 177!32 = !{!33, !34, !39} 178!33 = !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs0", scope: !31, file: !8, line: 77, baseType: !12, size: 8) 179!34 = !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs4", scope: !31, file: !8, line: 78, baseType: !35, size: 64, offset: 32) 180!35 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8_pack4", file: !8, line: 72, size: 64, elements: !36) 181!36 = !{!37, !38} 182!37 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !35, file: !8, line: 73, baseType: !16, size: 4, flags: DIFlagBitField) 183!38 = !DIDerivedType(tag: DW_TAG_member, name: "l", scope: !35, file: !8, line: 74, baseType: !27, size: 60, offset: 4, flags: DIFlagBitField) 184!39 = !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs12", scope: !31, file: !8, line: 79, baseType: !16, size: 1, offset: 96, flags: DIFlagBitField) 185!40 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout0", file: !8, line: 15, size: 192, elements: !41) 186!41 = !{!42, !43, !48} 187!42 = !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs0", scope: !40, file: !8, line: 16, baseType: !12, size: 8) 188!43 = !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs8", scope: !40, file: !8, line: 17, baseType: !44, size: 64, offset: 64) 189!44 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8", file: !8, line: 11, size: 64, elements: !45) 190!45 = !{!46, !47} 191!46 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !44, file: !8, line: 12, baseType: !16, size: 4, flags: DIFlagBitField) 192!47 = !DIDerivedType(tag: DW_TAG_member, name: "l", scope: !44, file: !8, line: 13, baseType: !27, size: 60, offset: 4, flags: DIFlagBitField) 193!48 = !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs16", scope: !40, file: !8, line: 18, baseType: !16, size: 1, offset: 128, flags: DIFlagBitField) 194!49 = !{i32 2, !"Dwarf Version", i32 2} 195!50 = !{i32 2, !"Debug Info Version", i32 3} 196!51 = !{!"clang version 3.7.0 (trunk 240791) (llvm/trunk 240790)"} 197 198