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7d6813a6c8
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
40 lines
1.9 KiB
LLVM
40 lines
1.9 KiB
LLVM
; RUN: llc -O0 < %s | FileCheck %s
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; Radar 10464995
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source_filename = "test/DebugInfo/X86/dbg-subrange.ll"
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.7.2"
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@s = common global [4294967296 x i8] zeroinitializer, align 16, !dbg !0
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; CHECK: .quad 4294967296 ## DW_AT_count
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; Function Attrs: nounwind ssp uwtable
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define void @bar() #0 !dbg !11 {
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entry:
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store i8 97, i8* getelementptr inbounds ([4294967296 x i8], [4294967296 x i8]* @s, i32 0, i64 0), align 1, !dbg !14
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ret void, !dbg !16
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}
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attributes #0 = { nounwind ssp uwtable }
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!llvm.dbg.cu = !{!7}
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!llvm.module.flags = !{!10}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "s", scope: null, file: !2, line: 2, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "small.c", directory: "/private/tmp")
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!3 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 34359738368, align: 8, elements: !5)
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!4 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!5 = !{!6}
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!6 = !DISubrange(count: 4294967296)
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!7 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 3.1 (trunk 144833)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !8, retainedTypes: !8, globals: !9, imports: !8)
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!8 = !{}
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!9 = !{!0}
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!10 = !{i32 1, !"Debug Info Version", i32 3}
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!11 = distinct !DISubprogram(name: "bar", scope: !2, file: !2, line: 4, type: !12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !7)
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!12 = !DISubroutineType(types: !13)
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!13 = !{null}
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!14 = !DILocation(line: 5, column: 3, scope: !15)
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!15 = distinct !DILexicalBlock(scope: !11, file: !2, line: 4, column: 1)
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!16 = !DILocation(line: 6, column: 1, scope: !15)
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