1 ; RUN: opt < %s -add-discriminators -S | FileCheck %s 2 ; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s 3 4 ; Discriminator support for diamond-shaped CFG.: 5 ; #1 void bar(int); 6 ; #2 7 ; #3 void foo(int i) { 8 ; #4 if (i > 10) 9 ; #5 bar(5); else bar(3); 10 ; #6 } 11 12 ; bar(5): discriminator 0 13 ; bar(3): discriminator 1 14 15 ; Function Attrs: uwtable 16 define void @_Z3fooi(i32 %i) #0 !dbg !4 { 17 %1 = alloca i32, align 4 18 store i32 %i, i32* %1, align 4 19 call void @llvm.dbg.declare(metadata i32* %1, metadata !11, metadata !12), !dbg !13 20 %2 = load i32, i32* %1, align 4, !dbg !14 21 %3 = icmp sgt i32 %2, 10, !dbg !16 22 br i1 %3, label %4, label %5, !dbg !17 23 24 ; <label>:4 ; preds = %0 25 call void @_Z3bari(i32 5), !dbg !18 26 br label %6, !dbg !18 27 28 ; <label>:5 ; preds = %0 29 call void @_Z3bari(i32 3), !dbg !19 30 ; CHECK: call void @_Z3bari(i32 3), !dbg ![[ELSE:[0-9]+]] 31 br label %6 32 33 ; <label>:6 ; preds = %5, %4 34 ret void, !dbg !20 35 } 36 37 ; Function Attrs: nounwind readnone 38 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 39 40 declare void @_Z3bari(i32) #2 41 42 attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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" } 43 attributes #1 = { nounwind readnone } 44 attributes #2 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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" } 45 46 !llvm.dbg.cu = !{!0} 47 !llvm.module.flags = !{!8, !9} 48 !llvm.ident = !{!10} 49 50 !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) 51 !1 = !DIFile(filename: "a.cc", directory: "/tmp") 52 !2 = !{} 53 !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, variables: !2) 54 !5 = !DISubroutineType(types: !6) 55 !6 = !{null, !7} 56 !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 57 !8 = !{i32 2, !"Dwarf Version", i32 4} 58 !9 = !{i32 2, !"Debug Info Version", i32 3} 59 !10 = !{!"clang version 3.8.0 (trunk 253273)"} 60 !11 = !DILocalVariable(name: "i", arg: 1, scope: !4, file: !1, line: 3, type: !7) 61 !12 = !DIExpression() 62 !13 = !DILocation(line: 3, column: 14, scope: !4) 63 !14 = !DILocation(line: 4, column: 7, scope: !15) 64 !15 = distinct !DILexicalBlock(scope: !4, file: !1, line: 4, column: 7) 65 !16 = !DILocation(line: 4, column: 9, scope: !15) 66 !17 = !DILocation(line: 4, column: 7, scope: !4) 67 !18 = !DILocation(line: 5, column: 5, scope: !15) 68 !19 = !DILocation(line: 5, column: 18, scope: !15) 69 !20 = !DILocation(line: 6, column: 1, scope: !4) 70 71 ; CHECK: ![[ELSE]] = !DILocation(line: 5, column: 18, scope: ![[ELSEBLOCK:[0-9]+]]) 72 ; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 1) 73
