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Diffstat (limited to 'test/Transforms/AddDiscriminators/oneline.ll')
| -rw-r--r-- | test/Transforms/AddDiscriminators/oneline.ll | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/test/Transforms/AddDiscriminators/oneline.ll b/test/Transforms/AddDiscriminators/oneline.ll new file mode 100644 index 000000000000..ebee3935dd66 --- /dev/null +++ b/test/Transforms/AddDiscriminators/oneline.ll @@ -0,0 +1,102 @@ +; RUN: opt < %s -add-discriminators -S | FileCheck %s + +; Discriminator support for code that is written in one line: +; #1 int foo(int i) { +; #2 if (i == 3 || i == 5) return 100; else return 99; +; #3 } + +; i == 3: discriminator 0 +; i == 5: discriminator 1 +; return 100: discriminator 2 +; return 99: discriminator 3 + +define i32 @_Z3fooi(i32 %i) #0 !dbg !4 { + %1 = alloca i32, align 4 + %2 = alloca i32, align 4 + store i32 %i, i32* %2, align 4, !tbaa !13 + call void @llvm.dbg.declare(metadata i32* %2, metadata !9, metadata !17), !dbg !18 + %3 = load i32, i32* %2, align 4, !dbg !19, !tbaa !13 + %4 = icmp eq i32 %3, 3, !dbg !21 + br i1 %4, label %8, label %5, !dbg !22 + +; <label>:5 ; preds = %0 + %6 = load i32, i32* %2, align 4, !dbg !23, !tbaa !13 +; CHECK: %6 = load i32, i32* %2, align 4, !dbg ![[THEN1:[0-9]+]],{{.*}} + + %7 = icmp eq i32 %6, 5, !dbg !24 +; CHECK: %7 = icmp eq i32 %6, 5, !dbg ![[THEN2:[0-9]+]] + + br i1 %7, label %8, label %9, !dbg !25 +; CHECK: br i1 %7, label %8, label %9, !dbg ![[THEN3:[0-9]+]] + +; <label>:8 ; preds = %5, %0 + store i32 100, i32* %1, align 4, !dbg !26 +; CHECK: store i32 100, i32* %1, align 4, !dbg ![[ELSE:[0-9]+]] + + br label %10, !dbg !26 +; CHECK: br label %10, !dbg ![[ELSE]] + +; <label>:9 ; preds = %5 + store i32 99, i32* %1, align 4, !dbg !27 +; CHECK: store i32 99, i32* %1, align 4, !dbg ![[COMBINE:[0-9]+]] + + br label %10, !dbg !27 +; CHECK: br label %10, !dbg ![[COMBINE]] + +; <label>:10 ; preds = %9, %8 + %11 = load i32, i32* %1, align 4, !dbg !28 + ret i32 %11, !dbg !28 +} + +; Function Attrs: nounwind readnone +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 + +attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind readnone } + +; We should be able to add discriminators even in the absence of llvm.dbg.cu. +; When using sample profiles, the front end will generate line tables but it +; does not generate llvm.dbg.cu to prevent codegen from emitting debug info +; to the final binary. +; !llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!10, !11} +!llvm.ident = !{!12} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 250915)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3) +!1 = !DIFile(filename: "a.cc", directory: "/usr/local/google/home/dehao/discr") +!2 = !{} +!3 = !{!4} +!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, variables: !8) +!5 = !DISubroutineType(types: !6) +!6 = !{!7, !7} +!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) +!8 = !{!9} +!9 = !DILocalVariable(name: "i", arg: 1, scope: !4, file: !1, line: 1, type: !7) +!10 = !{i32 2, !"Dwarf Version", i32 4} +!11 = !{i32 2, !"Debug Info Version", i32 3} +!12 = !{!"clang version 3.8.0 (trunk 250915)"} +!13 = !{!14, !14, i64 0} +!14 = !{!"int", !15, i64 0} +!15 = !{!"omnipotent char", !16, i64 0} +!16 = !{!"Simple C/C++ TBAA"} +!17 = !DIExpression() +!18 = !DILocation(line: 1, column: 13, scope: !4) +!19 = !DILocation(line: 2, column: 7, scope: !20) +!20 = distinct !DILexicalBlock(scope: !4, file: !1, line: 2, column: 7) +!21 = !DILocation(line: 2, column: 9, scope: !20) +!22 = !DILocation(line: 2, column: 14, scope: !20) +!23 = !DILocation(line: 2, column: 17, scope: !20) +!24 = !DILocation(line: 2, column: 19, scope: !20) +!25 = !DILocation(line: 2, column: 7, scope: !4) +!26 = !DILocation(line: 2, column: 25, scope: !20) +!27 = !DILocation(line: 2, column: 42, scope: !20) +!28 = !DILocation(line: 3, column: 1, scope: !4) + +; CHECK: ![[THEN1]] = !DILocation(line: 2, column: 17, scope: ![[THENBLOCK:[0-9]+]]) +; CHECK: ![[THENBLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 1) +; CHECK: ![[THEN2]] = !DILocation(line: 2, column: 19, scope: ![[THENBLOCK]]) +; CHECK: ![[THEN3]] = !DILocation(line: 2, column: 7, scope: ![[THENBLOCK]]) +; CHECK: ![[ELSE]] = !DILocation(line: 2, column: 25, scope: ![[ELSEBLOCK:[0-9]+]]) +; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 2) +; CHECK: ![[COMBINE]] = !DILocation(line: 2, column: 42, scope: ![[COMBINEBLOCK:[0-9]+]]) +; CHECK: ![[COMBINEBLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 3) |