1*2c864551SShiva Chen; Test bitcode writer/reader for DILabel metadata.
2*2c864551SShiva Chen; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
3*2c864551SShiva Chen; RUN: verify-uselistorder %s
4*2c864551SShiva Chen;
5*2c864551SShiva Chen; CHECK: top:
6*2c864551SShiva Chen; CHECK: call void @llvm.dbg.label(metadata [[LABEL_METADATA:![0-9]+]])
7*2c864551SShiva Chen; CHECK: distinct !DISubprogram(name: "foo", {{.*}}, retainedNodes: [[ELEMENTS:![0-9]+]])
8*2c864551SShiva Chen; CHECK: [[ELEMENTS]] = !{[[LABEL_METADATA]]}
9*2c864551SShiva Chen; CHECK: [[LABEL_METADATA]] = !DILabel({{.*}}, name: "top", {{.*}}, line: 4)
10*2c864551SShiva Chen
11*2c864551SShiva Chensource_filename = "debug-label-bitcode.c"
12*2c864551SShiva Chen
13*2c864551SShiva Chen; Function Attrs: noinline nounwind optnone
14*2c864551SShiva Chendefine i32 @foo(i32 signext %a, i32 signext %b) !dbg !4 {
15*2c864551SShiva Chenentry:
16*2c864551SShiva Chen  %a.addr = alloca i32, align 4
17*2c864551SShiva Chen  %b.addr = alloca i32, align 4
18*2c864551SShiva Chen  %sum = alloca i32, align 4
19*2c864551SShiva Chen  store i32 %a, i32* %a.addr, align 4
20*2c864551SShiva Chen  store i32 %b, i32* %b.addr, align 4
21*2c864551SShiva Chen  br label %top
22*2c864551SShiva Chen
23*2c864551SShiva Chentop:                                              ; preds = %entry
24*2c864551SShiva Chen  call void @llvm.dbg.label(metadata !9), !dbg !10
25*2c864551SShiva Chen  %0 = load i32, i32* %a.addr, align 4
26*2c864551SShiva Chen  %1 = load i32, i32* %b.addr, align 4
27*2c864551SShiva Chen  %add = add nsw i32 %0, %1
28*2c864551SShiva Chen  store i32 %add, i32* %sum, align 4
29*2c864551SShiva Chen  br label %done
30*2c864551SShiva Chen
31*2c864551SShiva Chendone:                                             ; preds = %top
32*2c864551SShiva Chen  call void @llvm.dbg.label(metadata !11), !dbg !12
33*2c864551SShiva Chen  %2 = load i32, i32* %sum, align 4
34*2c864551SShiva Chen  ret i32 %2
35*2c864551SShiva Chen}
36*2c864551SShiva Chen
37*2c864551SShiva Chen; Function Attrs: nounwind readnone speculatable
38*2c864551SShiva Chendeclare void @llvm.dbg.label(metadata)
39*2c864551SShiva Chen
40*2c864551SShiva Chen!llvm.dbg.cu = !{!0}
41*2c864551SShiva Chen!llvm.module.flags = !{!3}
42*2c864551SShiva Chen
43*2c864551SShiva Chen!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang 6.0.0", isOptimized: false, emissionKind: FullDebug, enums: !2)
44*2c864551SShiva Chen!1 = !DIFile(filename: "debug-label-bitcode.c", directory: "./")
45*2c864551SShiva Chen!2 = !{}
46*2c864551SShiva Chen!3 = !{i32 2, !"Debug Info Version", i32 3}
47*2c864551SShiva Chen!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !0, retainedNodes: !5)
48*2c864551SShiva Chen!5 = !{!9}
49*2c864551SShiva Chen!6 = !DISubroutineType(types: !7)
50*2c864551SShiva Chen!7 = !{!8, !8, !8}
51*2c864551SShiva Chen!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
52*2c864551SShiva Chen!9 = !DILabel(scope: !4, name: "top", file: !1, line: 4)
53*2c864551SShiva Chen!10 = !DILocation(line: 4, column: 1, scope: !4)
54*2c864551SShiva Chen!11 = !DILabel(scope: !4, name: "done", file: !1, line: 7)
55*2c864551SShiva Chen!12 = !DILocation(line: 7, column: 1, scope: !4)
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