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 4 ; 5 ; CHECK: top: 6 ; CHECK: call void @llvm.dbg.label(metadata [[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) 10 11 source_filename = "debug-label-bitcode.c" 12 13 ; Function Attrs: noinline nounwind optnone 14 define i32 @foo(i32 signext %a, i32 signext %b) !dbg !4 { 15 entry: 16 %a.addr = alloca i32, align 4 17 %b.addr = alloca i32, align 4 18 %sum = alloca i32, align 4 19 store i32 %a, i32* %a.addr, align 4 20 store i32 %b, i32* %b.addr, align 4 21 br label %top 22 23 top: ; preds = %entry 24 call void @llvm.dbg.label(metadata !9), !dbg !10 25 %0 = load i32, i32* %a.addr, align 4 26 %1 = load i32, i32* %b.addr, align 4 27 %add = add nsw i32 %0, %1 28 store i32 %add, i32* %sum, align 4 29 br label %done 30 31 done: ; preds = %top 32 call void @llvm.dbg.label(metadata !11), !dbg !12 33 %2 = load i32, i32* %sum, align 4 34 ret i32 %2 35 } 36 37 ; Function Attrs: nounwind readnone speculatable 38 declare void @llvm.dbg.label(metadata) 39 40 !llvm.dbg.cu = !{!0} 41 !llvm.module.flags = !{!3} 42 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: "./") 45 !2 = !{} 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) 48 !5 = !{!9} 49 !6 = !DISubroutineType(types: !7) 50 !7 = !{!8, !8, !8} 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) 56
