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1; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s2 3; Discriminator support for code that is written in one line:4; #1 int foo(int i) {5; #2 if (i == 3 || i == 5) return 100; else return 99;6; #3 }7 8; i == 3: discriminator 09; i == 5: discriminator 210; return 100: discriminator 411; return 99: discriminator 612 13define i32 @_Z3fooi(i32 %i) !dbg !4 {14 %1 = alloca i32, align 415 %2 = alloca i32, align 416 store i32 %i, ptr %2, align 4, !tbaa !1317 call void @llvm.dbg.declare(metadata ptr %2, metadata !9, metadata !17), !dbg !1818 %3 = load i32, ptr %2, align 4, !dbg !19, !tbaa !1319 %4 = icmp eq i32 %3, 3, !dbg !2120 br i1 %4, label %8, label %5, !dbg !2221 22; <label>:5 ; preds = %023 %6 = load i32, ptr %2, align 4, !dbg !23, !tbaa !1324; CHECK: %6 = load i32, ptr %2, align 4, !dbg ![[THEN1:[0-9]+]],{{.*}}25 26 %7 = icmp eq i32 %6, 5, !dbg !2427; CHECK: %7 = icmp eq i32 %6, 5, !dbg ![[THEN2:[0-9]+]]28 29 br i1 %7, label %8, label %9, !dbg !2530; CHECK: br i1 %7, label %8, label %9, !dbg ![[THEN3:[0-9]+]]31 32; <label>:8 ; preds = %5, %033 store i32 100, ptr %1, align 4, !dbg !2634; CHECK: store i32 100, ptr %1, align 4, !dbg ![[ELSE:[0-9]+]]35 36 br label %10, !dbg !2637; CHECK: br label %10, !dbg ![[ELSE]]38 39; <label>:9 ; preds = %540 store i32 99, ptr %1, align 4, !dbg !2741; CHECK: store i32 99, ptr %1, align 4, !dbg ![[COMBINE:[0-9]+]]42 43 br label %10, !dbg !2744; CHECK: br label %10, !dbg ![[COMBINE]]45 46; <label>:10 ; preds = %9, %847 %11 = load i32, ptr %1, align 4, !dbg !2848 ret i32 %11, !dbg !2849}50 51; Function Attrs: nounwind readnone52declare void @llvm.dbg.declare(metadata, metadata, metadata)53 54!llvm.dbg.cu = !{!0}55!llvm.module.flags = !{!10, !11}56!llvm.ident = !{!12}57 58!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 250915)", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)59!1 = !DIFile(filename: "a.cc", directory: "/usr/local/google/home/dehao/discr")60!2 = !{}61!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, unit: !0, retainedNodes: !8)62!5 = !DISubroutineType(types: !6)63!6 = !{!7, !7}64!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)65!8 = !{!9}66!9 = !DILocalVariable(name: "i", arg: 1, scope: !4, file: !1, line: 1, type: !7)67!10 = !{i32 2, !"Dwarf Version", i32 4}68!11 = !{i32 2, !"Debug Info Version", i32 3}69!12 = !{!"clang version 3.8.0 (trunk 250915)"}70!13 = !{!14, !14, i64 0}71!14 = !{!"int", !15, i64 0}72!15 = !{!"omnipotent char", !16, i64 0}73!16 = !{!"Simple C/C++ TBAA"}74!17 = !DIExpression()75!18 = !DILocation(line: 1, column: 13, scope: !4)76!19 = !DILocation(line: 2, column: 7, scope: !20)77!20 = distinct !DILexicalBlock(scope: !4, file: !1, line: 2, column: 7)78!21 = !DILocation(line: 2, column: 9, scope: !20)79!22 = !DILocation(line: 2, column: 14, scope: !20)80!23 = !DILocation(line: 2, column: 17, scope: !20)81!24 = !DILocation(line: 2, column: 19, scope: !20)82!25 = !DILocation(line: 2, column: 7, scope: !4)83!26 = !DILocation(line: 2, column: 25, scope: !20)84!27 = !DILocation(line: 2, column: 42, scope: !20)85!28 = !DILocation(line: 3, column: 1, scope: !4)86 87; CHECK: ![[F:.*]] = distinct !DISubprogram(name: "foo",88; CHECK: ![[IF:.*]] = distinct !DILexicalBlock(scope: ![[F]],{{.*}}line: 2, column: 7)89; CHECK: ![[THEN1]] = !DILocation(line: 2, column: 17, scope: ![[THENBLOCK:[0-9]+]])90; CHECK: ![[THENBLOCK]] = !DILexicalBlockFile(scope: ![[IF]],{{.*}} discriminator: 2)91; CHECK: ![[THEN2]] = !DILocation(line: 2, column: 19, scope: ![[THENBLOCK]])92; CHECK: ![[THEN3]] = !DILocation(line: 2, column: 7, scope: ![[BRBLOCK:[0-9]+]])93; CHECK: ![[BRBLOCK]] = !DILexicalBlockFile(scope: ![[F]],{{.*}} discriminator: 2)94; CHECK: ![[ELSE]] = !DILocation(line: 2, column: 25, scope: ![[ELSEBLOCK:[0-9]+]])95; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile(scope: ![[IF]],{{.*}} discriminator: 4)96; CHECK: ![[COMBINE]] = !DILocation(line: 2, column: 42, scope: ![[COMBINEBLOCK:[0-9]+]])97; CHECK: ![[COMBINEBLOCK]] = !DILexicalBlockFile(scope: ![[IF]],{{.*}} discriminator: 6)98