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51 lines
2.1 KiB
LLVM
51 lines
2.1 KiB
LLVM
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; RUN: llc < %s - | FileCheck %s
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;
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; FIXME: A potentially more interesting test case would be:
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; %call = @bar()
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; dbg.value j=0
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; %call2 = @bar()
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; dbg.value j=%call
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;
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; We cannot current handle the above sequence because codegenprepare
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; hoists the second dbg.value above %call2, which then appears to
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; conflict with j=0. It does this because SelectionDAG cannot handle
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; global debug values.
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target triple = "x86_64-apple-darwin10.0.0"
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;CHECK: ## DW_OP_consts
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;CHECK-NEXT: .byte 42
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define i32 @foobar() nounwind readonly noinline ssp !dbg !0 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 42, metadata !6, metadata !DIExpression()), !dbg !9
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%call = tail call i32 @bar(), !dbg !11
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tail call void @llvm.dbg.value(metadata i32 %call, metadata !6, metadata !DIExpression()), !dbg !11
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%call2 = tail call i32 @bar(), !dbg !11
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%add = add nsw i32 %call2, %call, !dbg !12
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ret i32 %add, !dbg !10
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
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declare i32 @bar() nounwind readnone
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!17}
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!0 = distinct !DISubprogram(name: "foobar", linkageName: "foobar", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !2, file: !15, scope: !1, type: !3, variables: !14)
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!1 = !DIFile(filename: "mu.c", directory: "/private/tmp")
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 114183)", isOptimized: true, emissionKind: FullDebug, file: !15, enums: !16, retainedTypes: !16, imports: null)
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!3 = !DISubroutineType(types: !4)
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!4 = !{!5}
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!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!6 = !DILocalVariable(name: "j", line: 15, scope: !7, file: !1, type: !5)
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!7 = distinct !DILexicalBlock(line: 12, column: 52, file: !15, scope: !0)
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!8 = !{i32 42}
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!9 = !DILocation(line: 15, column: 12, scope: !7)
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!10 = !DILocation(line: 23, column: 3, scope: !7)
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!11 = !DILocation(line: 17, column: 3, scope: !7)
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!12 = !DILocation(line: 18, column: 3, scope: !7)
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!14 = !{!6}
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!15 = !DIFile(filename: "mu.c", directory: "/private/tmp")
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!16 = !{}
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!17 = !{i32 1, !"Debug Info Version", i32 3}
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