| Shiva Chen | 2c86455 | 2018-05-09 02:40:45 +0000 | [diff] [blame^] | 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) |