1 ; RUN: llc -filetype=obj -o - < %s | llvm-dwarfdump - --debug-loc | FileCheck %s
3 ; Created using clang -g -O3 from:
9 ; struct S0 b, c = {3};
14 ; int main() { return 0; }
16 ; This is similar to the bug in test/DebugInfo/ARM/PR26163.ll, except that there is an
17 ; extra non-overlapping range first. Thus, we make sure that the backend actually looks
18 ; 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.
22 ; CHECK: [0x0000000000000000, 0x000000000000000f): DW_OP_lit3, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_piece 0x4
24 source_filename = "test/DebugInfo/X86/PR26148.ll"
25 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
26 target triple = "x86_64-apple-macosx10.11.0"
28 %struct.S0 = type { i16, i32 }
30 @a = common global %struct.S0 zeroinitializer, align 4, !dbg !0
32 ; Function Attrs: nounwind readnone
33 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
35 ; Function Attrs: nounwind readnone
36 declare void @llvm.dbg.value(metadata, metadata, metadata) #0
38 define void @fn1(i16 signext %p1) !dbg !16 {
40 tail call void @llvm.dbg.value(metadata i16 %p1, metadata !20, metadata !23), !dbg !24
41 tail call void @llvm.dbg.declare(metadata %struct.S0* undef, metadata !21, metadata !23), !dbg !25
42 tail call void @llvm.dbg.declare(metadata %struct.S0* undef, metadata !22, metadata !23), !dbg !26
43 tail call void @llvm.dbg.value(metadata i32 3, metadata !22, metadata !27), !dbg !26
44 tail call void @llvm.dbg.value(metadata i32 0, metadata !22, metadata !28), !dbg !26
45 tail call void @llvm.dbg.value(metadata i16 %p1, metadata !21, metadata !29), !dbg !25
46 tail call void @llvm.dbg.value(metadata i32 3, metadata !21, metadata !27), !dbg !25
47 tail call void @llvm.dbg.value(metadata i32 0, metadata !21, metadata !28), !dbg !25
48 store i32 3, i32* bitcast (%struct.S0* @a to i32*), align 4, !dbg !30
49 store i32 0, i32* getelementptr inbounds (%struct.S0, %struct.S0* @a, i64 0, i32 1), align 4, !dbg !30
53 define i32 @main() !dbg !32 {
58 attributes #0 = { nounwind readnone }
61 !llvm.module.flags = !{!12, !13, !14}
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")
70 !6 = !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !3, line: 1, size: 64, align: 32, elements: !7)
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)
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)
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)
99 !35 = !DILocation(line: 11, column: 14, scope: !32)