1; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s 2 3; Discriminator support for diamond-shaped CFG.: 4; #1 void bar(int); 5; #2 6; #3 void foo(int i) { 7; #4 if (i > 10) 8; #5 bar(5); else bar(3); 9; #6 } 10 11; bar(5): discriminator 0 12; bar(3): discriminator 2 13 14; Function Attrs: uwtable 15define void @_Z3fooi(i32 %i) #0 !dbg !4 { 16 %1 = alloca i32, align 4 17 store i32 %i, ptr %1, align 4 18 call void @llvm.dbg.declare(metadata ptr %1, metadata !11, metadata !12), !dbg !13 19 %2 = load i32, ptr %1, align 4, !dbg !14 20 %3 = icmp sgt i32 %2, 10, !dbg !16 21 br i1 %3, label %4, label %5, !dbg !17 22 23; <label>:4 ; preds = %0 24 call void @_Z3bari(i32 5), !dbg !18 25 br label %6, !dbg !18 26 27; <label>:5 ; preds = %0 28 call void @_Z3bari(i32 3), !dbg !19 29; CHECK: call void @_Z3bari(i32 3), !dbg ![[ELSE:[0-9]+]] 30 br label %6 31 32; <label>:6 ; preds = %5, %4 33 ret void, !dbg !20 34} 35 36; Function Attrs: nounwind readnone 37declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 38 39declare void @_Z3bari(i32) #2 40 41attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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" } 42attributes #1 = { nounwind readnone } 43attributes #2 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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" } 44 45!llvm.dbg.cu = !{!0} 46!llvm.module.flags = !{!8, !9} 47!llvm.ident = !{!10} 48 49!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 253273)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 50!1 = !DIFile(filename: "a.cc", directory: "/tmp") 51!2 = !{} 52!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) 53!5 = !DISubroutineType(types: !6) 54!6 = !{null, !7} 55!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 56!8 = !{i32 2, !"Dwarf Version", i32 4} 57!9 = !{i32 2, !"Debug Info Version", i32 3} 58!10 = !{!"clang version 3.8.0 (trunk 253273)"} 59!11 = !DILocalVariable(name: "i", arg: 1, scope: !4, file: !1, line: 3, type: !7) 60!12 = !DIExpression() 61!13 = !DILocation(line: 3, column: 14, scope: !4) 62!14 = !DILocation(line: 4, column: 7, scope: !15) 63!15 = distinct !DILexicalBlock(scope: !4, file: !1, line: 4, column: 7) 64!16 = !DILocation(line: 4, column: 9, scope: !15) 65!17 = !DILocation(line: 4, column: 7, scope: !4) 66!18 = !DILocation(line: 5, column: 5, scope: !15) 67!19 = !DILocation(line: 5, column: 18, scope: !15) 68!20 = !DILocation(line: 6, column: 1, scope: !4) 69 70; CHECK: ![[ELSE]] = !DILocation(line: 5, column: 18, scope: ![[ELSEBLOCK:[0-9]+]]) 71; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 2) 72