forked from OSchip/llvm-project
61 lines
4.2 KiB
LLVM
61 lines
4.2 KiB
LLVM
; RUN: llc -O2 < %s | FileCheck %s
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; RUN: llc -O2 -regalloc=basic < %s | FileCheck %s
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; Test to check that unused argument 'this' is not undefined in debug info.
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target triple = "x86_64-apple-darwin10.2"
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%struct.foo = type { i32 }
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@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 (%struct.foo*, i32)* @_ZN3foo3bazEi to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
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define i32 @_ZN3foo3bazEi(%struct.foo* nocapture %this, i32 %x) nounwind readnone optsize noinline ssp align 2 {
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;CHECK: DEBUG_VALUE: baz:this <- RDI{{$}}
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entry:
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tail call void @llvm.dbg.value(metadata %struct.foo* %this, i64 0, metadata !15, metadata !DIExpression()), !dbg !DILocation(scope: !8)
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tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !16, metadata !DIExpression()), !dbg !DILocation(scope: !8)
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%0 = mul nsw i32 %x, 7, !dbg !29 ; <i32> [#uses=1]
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%1 = add nsw i32 %0, 1, !dbg !29 ; <i32> [#uses=1]
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ret i32 %1, !dbg !29
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!4}
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!llvm.module.flags = !{!34}
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!llvm.dbg.lv = !{!0, !14, !15, !16, !17, !24, !25, !28}
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!0 = !DILocalVariable(name: "this", line: 11, arg: 1, scope: !1, file: !3, type: !12)
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!1 = distinct !DISubprogram(name: "bar", linkageName: "_ZN3foo3barEi", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 11, file: !31, scope: !2, type: !9, function: i32 (%struct.foo*, i32)* null)
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!2 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 3, size: 32, align: 32, file: !31, scope: !3, elements: !5)
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!3 = !DIFile(filename: "foo.cp", directory: "/tmp/")
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!4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 LLVM build", isOptimized: true, emissionKind: 0, file: !31, enums: !32, retainedTypes: !32, subprograms: !33)
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!5 = !{!6, !1, !8}
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!6 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 8, size: 32, align: 32, file: !31, scope: !2, baseType: !7)
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!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = distinct !DISubprogram(name: "baz", linkageName: "_ZN3foo3bazEi", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 15, file: !31, scope: !2, type: !9, function: i32 (%struct.foo*, i32)* @_ZN3foo3bazEi)
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!9 = !DISubroutineType(types: !10)
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!10 = !{!7, !11, !7}
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!11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !31, scope: !3, baseType: !2)
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!12 = !DIDerivedType(tag: DW_TAG_const_type, size: 64, align: 64, flags: DIFlagArtificial, file: !31, scope: !3, baseType: !13)
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!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !31, scope: !3, baseType: !2)
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!14 = !DILocalVariable(name: "x", line: 11, arg: 2, scope: !1, file: !3, type: !7)
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!15 = !DILocalVariable(name: "this", line: 15, arg: 1, scope: !8, file: !3, type: !12)
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!16 = !DILocalVariable(name: "x", line: 15, arg: 2, scope: !8, file: !3, type: !7)
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!17 = !DILocalVariable(name: "argc", line: 19, arg: 1, scope: !18, file: !3, type: !7)
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!18 = distinct !DISubprogram(name: "main", linkageName: "main", line: 19, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 19, file: !31, scope: !3, type: !19)
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!19 = !DISubroutineType(types: !20)
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!20 = !{!7, !7, !21}
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!21 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !31, scope: !3, baseType: !22)
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!22 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !31, scope: !3, baseType: !23)
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!23 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!24 = !DILocalVariable(name: "argv", line: 19, arg: 2, scope: !18, file: !3, type: !21)
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!25 = !DILocalVariable(name: "a", line: 20, scope: !26, file: !3, type: !2)
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!26 = distinct !DILexicalBlock(line: 19, column: 0, file: !31, scope: !27)
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!27 = distinct !DILexicalBlock(line: 19, column: 0, file: !31, scope: !18)
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!28 = !DILocalVariable(name: "b", line: 21, scope: !26, file: !3, type: !7)
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!29 = !DILocation(line: 16, scope: !30)
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!30 = distinct !DILexicalBlock(line: 15, column: 0, file: !31, scope: !8)
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!31 = !DIFile(filename: "foo.cp", directory: "/tmp/")
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!32 = !{}
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!33 = !{!1, !8, !18}
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!34 = !{i32 1, !"Debug Info Version", i32 3}
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