1; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s 2; 3; // Compile with -O1 4; typedef struct { 5; int a; 6; long int b; 7; } Inner; 8; 9; typedef struct { 10; Inner inner[2]; 11; } Outer; 12; 13; int foo(Outer outer) { 14; Inner i1 = outer.inner[1]; 15; return i1.a; 16; } 17; 18; 19; CHECK: DW_TAG_variable [4] 20; CHECK-NEXT: DW_AT_location [DW_FORM_data4] ([[LOC:.*]]) 21; CHECK-NEXT: DW_AT_name {{.*}}"i1" 22; 23; CHECK: .debug_loc 24; CHECK: [[LOC]]: Beginning address offset: 0x0000000000000004 25; CHECK-NEXT: Ending address offset: 0x0000000000000005 26; rax, piece 0x00000004 27; CHECK-NEXT: Location description: 50 93 04 28; 29; ModuleID = '/Volumes/Data/llvm/test/DebugInfo/X86/sroasplit-1.ll' 30target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 31target triple = "x86_64-apple-macosx10.9.0" 32 33%struct.Outer = type { [2 x %struct.Inner] } 34%struct.Inner = type { i32, i64 } 35 36; Function Attrs: nounwind ssp uwtable 37define i32 @foo(%struct.Outer* byval align 8 %outer) #0 !dbg !4 { 38entry: 39 call void @llvm.dbg.declare(metadata %struct.Outer* %outer, metadata !25, metadata !DIExpression()), !dbg !26 40 %i1.sroa.0.0..sroa_idx = getelementptr inbounds %struct.Outer, %struct.Outer* %outer, i64 0, i32 0, i64 1, i32 0, !dbg !27 41 %i1.sroa.0.0.copyload = load i32, i32* %i1.sroa.0.0..sroa_idx, align 8, !dbg !27 42 call void @llvm.dbg.value(metadata i32 %i1.sroa.0.0.copyload, i64 0, metadata !28, metadata !29), !dbg !27 43 %i1.sroa.2.0..sroa_raw_cast = bitcast %struct.Outer* %outer to i8*, !dbg !27 44 %i1.sroa.2.0..sroa_raw_idx = getelementptr inbounds i8, i8* %i1.sroa.2.0..sroa_raw_cast, i64 20, !dbg !27 45 ret i32 %i1.sroa.0.0.copyload, !dbg !32 46} 47 48; Function Attrs: nounwind readnone 49declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 50 51; Function Attrs: nounwind 52declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2 53 54; Function Attrs: nounwind readnone 55declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 56 57attributes #0 = { nounwind ssp uwtable } 58attributes #1 = { nounwind readnone } 59attributes #2 = { nounwind } 60 61!llvm.dbg.cu = !{!0} 62!llvm.module.flags = !{!22, !23} 63!llvm.ident = !{!24} 64 65!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 66!1 = !DIFile(filename: "sroasplit-1.c", directory: "") 67!2 = !{} 68!4 = distinct !DISubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, variables: !2) 69!5 = !DIFile(filename: "sroasplit-1.c", directory: "") 70!6 = !DISubroutineType(types: !7) 71!7 = !{!8, !9} 72!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 73!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10) 74!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 256, align: 64, file: !1, elements: !11) 75!11 = !{!12} 76!12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 256, align: 64, file: !1, scope: !10, baseType: !13) 77!13 = !DICompositeType(tag: DW_TAG_array_type, size: 256, align: 64, baseType: !14, elements: !20) 78!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15) 79!15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 128, align: 64, file: !1, elements: !16) 80!16 = !{!17, !18} 81!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8) 82!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 64, align: 64, offset: 64, file: !1, scope: !15, baseType: !19) 83!19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed) 84!20 = !{!21} 85!21 = !DISubrange(count: 2) 86!22 = !{i32 2, !"Dwarf Version", i32 2} 87!23 = !{i32 1, !"Debug Info Version", i32 3} 88!24 = !{!"clang version 3.5.0 "} 89!25 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9) 90!26 = !DILocation(line: 10, scope: !4) 91!27 = !DILocation(line: 11, scope: !4) 92!28 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14) 93!29 = !DIExpression(DW_OP_bit_piece, 0, 32) 94!31 = !{i32 3, i32 0, i32 12} 95!32 = !DILocation(line: 12, scope: !4) 96