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62 lines
2.8 KiB
LLVM
62 lines
2.8 KiB
LLVM
; RUN: llc -mtriple=x86_64-apple-darwin10 < %s | FileCheck %s
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%struct.a = type { i32 }
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define i32 @bar(%struct.a* nocapture %b) nounwind ssp !dbg !0 {
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entry:
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tail call void @llvm.dbg.value(metadata %struct.a* %b, metadata !6, metadata !DIExpression()), !dbg !13
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%tmp1 = getelementptr inbounds %struct.a, %struct.a* %b, i64 0, i32 0, !dbg !14
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%tmp2 = load i32, i32* %tmp1, align 4, !dbg !14
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tail call void @llvm.dbg.value(metadata i32 %tmp2, metadata !11, metadata !DIExpression()), !dbg !14
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%call = tail call i32 (...) @foo(i32 %tmp2) nounwind , !dbg !18
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%add = add nsw i32 %tmp2, 1, !dbg !19
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ret i32 %add, !dbg !19
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}
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declare i32 @foo(...)
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declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!24}
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!0 = distinct !DISubprogram(name: "bar", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, file: !22, scope: !1, type: !3, retainedNodes: !21)
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!1 = !DIFile(filename: "bar.c", directory: "/private/tmp")
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 122997)", isOptimized: true, emissionKind: FullDebug, file: !22, enums: !23, retainedTypes: !23, 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: "b", line: 5, arg: 1, scope: !0, file: !1, type: !7)
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!7 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !2, baseType: !8)
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!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "a", line: 1, size: 32, align: 32, file: !22, scope: !2, elements: !9)
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!9 = !{!10}
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!10 = !DIDerivedType(tag: DW_TAG_member, name: "c", line: 2, size: 32, align: 32, file: !22, scope: !1, baseType: !5)
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!11 = !DILocalVariable(name: "x", line: 6, scope: !12, file: !1, type: !5)
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!12 = distinct !DILexicalBlock(line: 5, column: 22, file: !22, scope: !0)
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!13 = !DILocation(line: 5, column: 19, scope: !0)
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!14 = !DILocation(line: 6, column: 14, scope: !12)
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!18 = !DILocation(line: 7, column: 2, scope: !12)
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!19 = !DILocation(line: 8, column: 2, scope: !12)
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!21 = !{!6, !11}
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!22 = !DIFile(filename: "bar.c", directory: "/private/tmp")
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!23 = !{}
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; Check that variable bar:b value range is appropriately truncated in debug info.
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; The variable is in %rdi which is clobbered by 'movl %ebx, %edi'
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; Here Ltmp7 is the end of the location range.
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;CHECK: .loc 1 7 2
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;CHECK: movl
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;CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]
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;CHECK:Ldebug_loc0:
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;CHECK-NEXT: .set Lset{{.*}},
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;CHECK-NEXT: .quad
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;CHECK-NEXT: .set [[CLOBBER_OFF:Lset.*]], [[CLOBBER]]-{{.*}}
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;CHECK-NEXT: .quad [[CLOBBER_OFF]]
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;CHECK-NEXT: .short 1 ## Loc expr size
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;CHECK-NEXT: .byte 85 ## DW_OP_reg
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;CHECK: .quad 0
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;CHECK-NEXT: .quad 0
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!24 = !{i32 1, !"Debug Info Version", i32 3}
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