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56 lines
2.1 KiB
56 lines
2.1 KiB
4 months ago
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; Test bitcode writer/reader for DILabel metadata.
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; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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;
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; CHECK: top:
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; CHECK: call void @llvm.dbg.label(metadata [[LABEL_METADATA:![0-9]+]])
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; CHECK: distinct !DISubprogram(name: "foo", {{.*}}, retainedNodes: [[ELEMENTS:![0-9]+]])
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; CHECK: [[ELEMENTS]] = !{[[LABEL_METADATA]]}
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; CHECK: [[LABEL_METADATA]] = !DILabel({{.*}}, name: "top", {{.*}}, line: 4)
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source_filename = "debug-label-bitcode.c"
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; Function Attrs: noinline nounwind optnone
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define i32 @foo(i32 signext %a, i32 signext %b) !dbg !4 {
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entry:
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%a.addr = alloca i32, align 4
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%b.addr = alloca i32, align 4
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%sum = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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store i32 %b, i32* %b.addr, align 4
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br label %top
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top: ; preds = %entry
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call void @llvm.dbg.label(metadata !9), !dbg !10
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%0 = load i32, i32* %a.addr, align 4
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%1 = load i32, i32* %b.addr, align 4
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%add = add nsw i32 %0, %1
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store i32 %add, i32* %sum, align 4
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br label %done
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done: ; preds = %top
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call void @llvm.dbg.label(metadata !11), !dbg !12
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%2 = load i32, i32* %sum, align 4
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ret i32 %2
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.label(metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang 6.0.0", isOptimized: false, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "debug-label-bitcode.c", directory: "./")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!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)
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!5 = !{!9}
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8, !8, !8}
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !DILabel(scope: !4, name: "top", file: !1, line: 4)
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!10 = !DILocation(line: 4, column: 1, scope: !4)
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!11 = !DILabel(scope: !4, name: "done", file: !1, line: 7)
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!12 = !DILocation(line: 7, column: 1, scope: !4)
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