101 lines · plain
1; RUN: llc -filetype=obj -o - < %s | llvm-dwarfdump - --debug-loc | FileCheck %s2;3; Created using clang -g -O3 from:4; struct S0 {5; short f0;6; int f3;7; } a;8; void fn1(short p1) {9; struct S0 b, c = {3};10; b.f3 = p1;11; a = b = c;12; }13;14; int main() { return 0; }15;16; This is similar to the bug in test/DebugInfo/ARM/PR26163.ll, except that there is an17; extra non-overlapping range first. Thus, we make sure that the backend actually looks18; at all expressions when determining whether to merge ranges, not just the first one.19; AS in 26163, we only expect one range as the first one is zero sized.20;21;22; CHECK: (0x0000000000000000, 0x000000000000000f): DW_OP_lit3, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_piece 0x423 24source_filename = "test/DebugInfo/X86/PR26148.ll"25target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"26target triple = "x86_64-apple-macosx10.11.0"27 28%struct.S0 = type { i16, i32 }29 30@a = common global %struct.S0 zeroinitializer, align 4, !dbg !031 32; Function Attrs: nounwind readnone33declare void @llvm.dbg.declare(metadata, metadata, metadata) #034 35; Function Attrs: nounwind readnone36declare void @llvm.dbg.value(metadata, metadata, metadata) #037 38define void @fn1(i16 signext %p1) !dbg !16 {39entry:40 tail call void @llvm.dbg.value(metadata i16 %p1, metadata !20, metadata !23), !dbg !2441 tail call void @llvm.dbg.declare(metadata ptr undef, metadata !21, metadata !23), !dbg !2542 tail call void @llvm.dbg.declare(metadata ptr undef, metadata !22, metadata !23), !dbg !2643 tail call void @llvm.dbg.value(metadata i32 3, metadata !22, metadata !27), !dbg !2644 tail call void @llvm.dbg.value(metadata i32 0, metadata !22, metadata !28), !dbg !2645 tail call void @llvm.dbg.value(metadata i16 %p1, metadata !21, metadata !29), !dbg !2546 tail call void @llvm.dbg.value(metadata i32 3, metadata !21, metadata !27), !dbg !2547 tail call void @llvm.dbg.value(metadata i32 0, metadata !21, metadata !28), !dbg !2548 store i32 3, ptr @a, align 4, !dbg !3049 store i32 0, ptr getelementptr inbounds (%struct.S0, ptr @a, i64 0, i32 1), align 4, !dbg !3050 ret void, !dbg !3151}52 53define i32 @main() !dbg !32 {54entry:55 ret i32 0, !dbg !3556}57 58attributes #0 = { nounwind readnone }59 60!llvm.dbg.cu = !{!2}61!llvm.module.flags = !{!12, !13, !14}62!llvm.ident = !{!15}63 64!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())65!1 = !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 4, type: !6, isLocal: false, isDefinition: true)66!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)67!3 = !DIFile(filename: "small.c", directory: "/Users/kfischer/Projects/clangbug")68!4 = !{}69!5 = !{!0}70!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !3, line: 1, size: 64, align: 32, elements: !7)71!7 = !{!8, !10}72!8 = !DIDerivedType(tag: DW_TAG_member, name: "f0", scope: !6, file: !3, line: 2, baseType: !9, size: 16, align: 16)73!9 = !DIBasicType(name: "short", size: 16, align: 16, encoding: DW_ATE_signed)74!10 = !DIDerivedType(tag: DW_TAG_member, name: "f3", scope: !6, file: !3, line: 3, baseType: !11, size: 32, align: 32, offset: 32)75!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)76!12 = !{i32 2, !"Dwarf Version", i32 2}77!13 = !{i32 2, !"Debug Info Version", i32 3}78!14 = !{i32 1, !"PIC Level", i32 2}79!15 = !{!"clang version 3.9.0"}80!16 = distinct !DISubprogram(name: "fn1", scope: !3, file: !3, line: 5, type: !17, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !19)81!17 = !DISubroutineType(types: !18)82!18 = !{null, !9}83!19 = !{!20, !21, !22}84!20 = !DILocalVariable(name: "p1", arg: 1, scope: !16, file: !3, line: 5, type: !9)85!21 = !DILocalVariable(name: "b", scope: !16, file: !3, line: 6, type: !6)86!22 = !DILocalVariable(name: "c", scope: !16, file: !3, line: 6, type: !6)87!23 = !DIExpression()88!24 = !DILocation(line: 5, column: 16, scope: !16)89!25 = !DILocation(line: 6, column: 13, scope: !16)90!26 = !DILocation(line: 6, column: 16, scope: !16)91!27 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)92!28 = !DIExpression(DW_OP_LLVM_fragment, 32, 32)93!29 = !DIExpression(DW_OP_LLVM_fragment, 32, 16)94!30 = !DILocation(line: 8, column: 9, scope: !16)95!31 = !DILocation(line: 9, column: 1, scope: !16)96!32 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 11, type: !33, isLocal: false, isDefinition: true, scopeLine: 11, isOptimized: true, unit: !2, retainedNodes: !4)97!33 = !DISubroutineType(types: !34)98!34 = !{!11}99!35 = !DILocation(line: 11, column: 14, scope: !32)100 101