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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
24 lines
1.0 KiB
LLVM
24 lines
1.0 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; Radar 10147769
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; Do not unnecessarily use AT_specification DIE.
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; CHECK-NOT: AT_specification
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source_filename = "test/DebugInfo/Generic/dbg-at-specficiation.ll"
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@a = common global [10 x i32] zeroinitializer, align 16, !dbg !0
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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: "a", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "x.c", directory: "/private/tmp")
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!3 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 320, align: 32, elements: !5)
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!4 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!5 = !{!6}
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!6 = !DISubrange(count: 10)
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!7 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 3.0 (trunk 140253)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !8, retainedTypes: !8, globals: !9)
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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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