forked from OSchip/llvm-project
71 lines
3.4 KiB
LLVM
71 lines
3.4 KiB
LLVM
; RUN: opt -S < %s -globalopt | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@_ZL1x = internal global [200 x i8]* null, align 8, !dbg !0
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define i32 @main(i32 %argc, i8** %argv) norecurse !dbg !18 {
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; CHECK: define i32 @main
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; Make sure we localized the global.
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; CHECK: alloca [200 x i8]*
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; Make sure the metadata is sane. Currently, we just drop the metadata,
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; so it points to nothing.
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; CHECK: call void @llvm.dbg.value(metadata !2,
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; CHECK: !2 = !{}
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entry:
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call void @llvm.dbg.value(metadata i32 %argc, metadata !22, metadata !23), !dbg !24
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call void @llvm.dbg.value(metadata i8** %argv, metadata !25, metadata !23), !dbg !26
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%arrayidx = getelementptr inbounds i8*, i8** %argv, i64 0, !dbg !27
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%0 = load i8*, i8** %arrayidx, align 8, !dbg !27
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%1 = bitcast i8* %0 to [200 x i8]*, !dbg !28
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store [200 x i8]* %1, [200 x i8]** @_ZL1x, align 8, !dbg !29
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call void @llvm.dbg.value(metadata i8** bitcast ([200 x i8]** @_ZL1x to i8**), metadata !30, metadata !23), !dbg !31
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%2 = load i8*, i8** bitcast ([200 x i8]** @_ZL1x to i8**), align 8, !dbg !32
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%3 = load i8, i8* %2, align 1, !dbg !33
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%conv = sext i8 %3 to i32, !dbg !33
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ret i32 %conv, !dbg !34
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!15, !16}
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!llvm.ident = !{!17}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "x", linkageName: "_ZL1x", scope: !2, file: !14, line: 1, type: !6, isLocal: true, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !13)
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!3 = !DIFile(filename: "-", directory: "/")
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!4 = !{}
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!5 = !{!6, !11}
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!6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64)
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!7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 1600, elements: !9)
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!8 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!9 = !{!10}
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!10 = !DISubrange(count: 200)
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!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64)
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!13 = !{!0}
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!14 = !DIFile(filename: "<stdin>", directory: "/")
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!15 = !{i32 2, !"Dwarf Version", i32 4}
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!16 = !{i32 2, !"Debug Info Version", i32 3}
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!17 = !{!"clang"}
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!18 = distinct !DISubprogram(name: "main", scope: !14, file: !14, line: 2, type: !19, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !2, variables: !4)
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!19 = !DISubroutineType(types: !20)
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!20 = !{!21, !21, !11}
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!21 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!22 = !DILocalVariable(name: "argc", arg: 1, scope: !18, file: !14, line: 2, type: !21)
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!23 = !DIExpression()
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!24 = !DILocation(line: 2, column: 14, scope: !18)
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!25 = !DILocalVariable(name: "argv", arg: 2, scope: !18, file: !14, line: 2, type: !11)
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!26 = !DILocation(line: 2, column: 26, scope: !18)
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!27 = !DILocation(line: 2, column: 52, scope: !18)
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!28 = !DILocation(line: 2, column: 38, scope: !18)
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!29 = !DILocation(line: 2, column: 36, scope: !18)
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!30 = !DILocalVariable(name: "y", scope: !18, file: !14, line: 2, type: !11)
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!31 = !DILocation(line: 2, column: 68, scope: !18)
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!32 = !DILocation(line: 2, column: 92, scope: !18)
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!33 = !DILocation(line: 2, column: 91, scope: !18)
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!34 = !DILocation(line: 2, column: 84, scope: !18)
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