| ; RUN: opt < %s -add-discriminators -S | FileCheck %s |
| ; RUN: opt < %s -passes=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 2 |
| ; return 100: discriminator 4 |
| ; return 99: discriminator 6 |
| |
| 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" "frame-pointer"="none" "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 } |
| |
| !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: NoDebug, enums: !2) |
| !1 = !DIFile(filename: "a.cc", directory: "/usr/local/google/home/dehao/discr") |
| !2 = !{} |
| !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) |
| !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: ![[F:.*]] = distinct !DISubprogram(name: "foo", |
| ; CHECK: ![[IF:.*]] = distinct !DILexicalBlock(scope: ![[F]],{{.*}}line: 2, column: 7) |
| ; CHECK: ![[THEN1]] = !DILocation(line: 2, column: 17, scope: ![[THENBLOCK:[0-9]+]]) |
| ; CHECK: ![[THENBLOCK]] = !DILexicalBlockFile(scope: ![[IF]],{{.*}} discriminator: 2) |
| ; CHECK: ![[THEN2]] = !DILocation(line: 2, column: 19, scope: ![[THENBLOCK]]) |
| ; CHECK: ![[THEN3]] = !DILocation(line: 2, column: 7, scope: ![[BRBLOCK:[0-9]+]]) |
| ; CHECK: ![[BRBLOCK]] = !DILexicalBlockFile(scope: ![[F]],{{.*}} discriminator: 2) |
| ; CHECK: ![[ELSE]] = !DILocation(line: 2, column: 25, scope: ![[ELSEBLOCK:[0-9]+]]) |
| ; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile(scope: ![[IF]],{{.*}} discriminator: 4) |
| ; CHECK: ![[COMBINE]] = !DILocation(line: 2, column: 42, scope: ![[COMBINEBLOCK:[0-9]+]]) |
| ; CHECK: ![[COMBINEBLOCK]] = !DILexicalBlockFile(scope: ![[IF]],{{.*}} discriminator: 6) |