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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
46 lines
2.1 KiB
LLVM
46 lines
2.1 KiB
LLVM
; RUN: llvm-link %s %p/2011-08-04-Metadata2.ll -o %t.bc
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; RUN: llvm-dis < %t.bc | FileCheck %s
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; Test if internal global variable's debug info is merged appropriately or not.
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; CHECK: @x = internal global i32 0, align 4, !dbg [[DI1:![0-9]+]]
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; CHECK: @x.1 = internal global i32 0, align 4, !dbg [[DI2:![0-9]+]]
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; CHECK: [[DI1]] = !DIGlobalVariableExpression(var: [[V1:.*]], expr: !DIExpression())
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; CHECK: [[V1]] = !DIGlobalVariable(name: "x",
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; CHECK-NOT: linkageName:
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; CHECK: [[DI2]] = !DIGlobalVariableExpression(var: [[V2:.*]], expr: !DIExpression())
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; CHECK: [[V2]] = !DIGlobalVariable(name: "x",
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; CHECK-NOT: linkageName:
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source_filename = "test/Linker/2011-08-04-Metadata.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"
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target triple = "x86_64-apple-macosx10.7.0"
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@x = internal global i32 0, align 4, !dbg !0
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; Function Attrs: nounwind ssp uwtable
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define void @foo() #0 !dbg !8 {
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entry:
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store i32 1, i32* @x, align 4, !dbg !11
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ret void, !dbg !11
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}
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attributes #0 = { nounwind ssp uwtable }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 2, type: !6, isLocal: true, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.0 ()", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4, globals: !5)
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!3 = !DIFile(filename: "/tmp/one.c", directory: "/Volumes/Lalgate/Slate/D")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!7 = !{i32 1, !"Debug Info Version", i32 3}
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!8 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 3, type: !9, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !2)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null}
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!11 = !DILocation(line: 3, column: 14, scope: !12)
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!12 = distinct !DILexicalBlock(scope: !8, file: !3, line: 3, column: 12)
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