1; RUN: llvm-link %s %p/2011-08-04-Metadata2.ll -o %t.bc
2; RUN: llvm-dis < %t.bc | FileCheck %s
3; Test if internal global variable's debug info is merged appropriately or not.
4
5; CHECK: !MDGlobalVariable(name: "x",
6; CHECK-NOT:               linkageName:
7; CHECK-SAME:              variable: i32* @x{{[,)]}}
8; CHECK: !MDGlobalVariable(name: "x",
9; CHECK-NOT:               linkageName:
10; CHECK-SAME:              variable: i32* @x1{{[,)]}}
11target 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"
12target triple = "x86_64-apple-macosx10.7.0"
13
14@x = internal global i32 0, align 4
15
16define void @foo() nounwind uwtable ssp {
17entry:
18  store i32 1, i32* @x, align 4, !dbg !7
19  ret void, !dbg !7
20}
21
22!llvm.dbg.cu = !{!0}
23!llvm.module.flags = !{!11}
24!llvm.dbg.sp = !{!1}
25!llvm.dbg.gv = !{!5}
26
27!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: true, emissionKind: 0, file: !9, enums: !{}, retainedTypes: !{}, subprograms: !10)
28!1 = !MDSubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !9, scope: !2, type: !3, function: void ()* @foo)
29!2 = !MDFile(filename: "/tmp/one.c", directory: "/Volumes/Lalgate/Slate/D")
30!3 = !MDSubroutineType(types: !4)
31!4 = !{null}
32!5 = !MDGlobalVariable(name: "x", line: 2, isLocal: true, isDefinition: true, scope: !0, file: !2, type: !6, variable: i32* @x)
33!6 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
34!7 = !MDLocation(line: 3, column: 14, scope: !8)
35!8 = distinct !MDLexicalBlock(line: 3, column: 12, file: !9, scope: !1)
36!9 = !MDFile(filename: "/tmp/one.c", directory: "/Volumes/Lalgate/Slate/D")
37!10 = !{!1}
38!11 = !{i32 1, !"Debug Info Version", i32 3}
39