1 ; Test bitcode writer/reader for DILabel metadata.
2 ; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
3 ; RUN: verify-uselistorder %s
6 ; CHECK: #dbg_label([[LABEL_METADATA:![0-9]+]],
7 ; CHECK: distinct !DISubprogram(name: "foo", {{.*}}, retainedNodes: [[ELEMENTS:![0-9]+]])
8 ; CHECK: [[ELEMENTS]] = !{[[LABEL_METADATA]]}
9 ; CHECK: [[LABEL_METADATA]] = !DILabel({{.*}}, name: "top", {{.*}}, line: 4)
11 source_filename = "debug-label-bitcode.c"
13 ; Function Attrs: noinline nounwind optnone
14 define i32 @foo(i32 signext %a, i32 signext %b) !dbg !4 {
16 %a.addr = alloca i32, align 4
17 %b.addr = alloca i32, align 4
18 %sum = alloca i32, align 4
19 store i32 %a, ptr %a.addr, align 4
20 store i32 %b, ptr %b.addr, align 4
24 call void @llvm.dbg.label(metadata !9), !dbg !10
25 %0 = load i32, ptr %a.addr, align 4
26 %1 = load i32, ptr %b.addr, align 4
27 %add = add nsw i32 %0, %1
28 store i32 %add, ptr %sum, align 4
32 call void @llvm.dbg.label(metadata !11), !dbg !12
33 %2 = load i32, ptr %sum, align 4
37 ; Function Attrs: nounwind readnone speculatable
38 declare void @llvm.dbg.label(metadata)
41 !llvm.module.flags = !{!3}
43 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang 6.0.0", isOptimized: false, emissionKind: FullDebug, enums: !2)
44 !1 = !DIFile(filename: "debug-label-bitcode.c", directory: "./")
46 !3 = !{i32 2, !"Debug Info Version", i32 3}
47 !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)
49 !6 = !DISubroutineType(types: !7)
51 !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
52 !9 = !DILabel(scope: !4, name: "top", file: !1, line: 4)
53 !10 = !DILocation(line: 4, column: 1, scope: !4)
54 !11 = !DILabel(scope: !4, name: "done", file: !1, line: 7)
55 !12 = !DILocation(line: 7, column: 1, scope: !4)