1 ; RUN: opt < %s -add-discriminators -S | FileCheck %s 2 ; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s 3 4 ; Discriminator support for multiple CFG paths on the same line. 5 ; 6 ; void foo(int i) { 7 ; int x; 8 ; if (i < 10) x = i; else x = -i; 9 ; } 10 ; 11 ; The two stores inside the if-then-else line must have different discriminator 12 ; values. 13 14 define void @foo(i32 %i) #0 !dbg !4 { 15 entry: 16 %i.addr = alloca i32, align 4 17 %x = alloca i32, align 4 18 store i32 %i, i32* %i.addr, align 4 19 %0 = load i32, i32* %i.addr, align 4, !dbg !10 20 %cmp = icmp slt i32 %0, 10, !dbg !10 21 br i1 %cmp, label %if.then, label %if.else, !dbg !10 22 23 if.then: ; preds = %entry 24 %1 = load i32, i32* %i.addr, align 4, !dbg !10 25 ; CHECK: %1 = load i32, i32* %i.addr, align 4, !dbg ![[THEN:[0-9]+]] 26 27 store i32 %1, i32* %x, align 4, !dbg !10 28 ; CHECK: store i32 %1, i32* %x, align 4, !dbg ![[THEN]] 29 30 br label %if.end, !dbg !10 31 ; CHECK: br label %if.end, !dbg ![[THEN]] 32 33 if.else: ; preds = %entry 34 %2 = load i32, i32* %i.addr, align 4, !dbg !10 35 ; CHECK: %2 = load i32, i32* %i.addr, align 4, !dbg ![[ELSE:[0-9]+]] 36 37 %sub = sub nsw i32 0, %2, !dbg !10 38 ; CHECK: %sub = sub nsw i32 0, %2, !dbg ![[ELSE]] 39 40 store i32 %sub, i32* %x, align 4, !dbg !10 41 ; CHECK: store i32 %sub, i32* %x, align 4, !dbg ![[ELSE]] 42 43 br label %if.end 44 45 if.end: ; preds = %if.else, %if.then 46 ret void, !dbg !12 47 } 48 49 attributes #0 = { nounwind uwtable "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" "unsafe-fp-math"="false" "use-soft-float"="false" } 50 51 !llvm.dbg.cu = !{!0} 52 !llvm.module.flags = !{!7, !8} 53 !llvm.ident = !{!9} 54 55 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 (trunk 199750) (llvm/trunk 199751)", isOptimized: false, emissionKind: NoDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 56 !1 = !DIFile(filename: "multiple.c", directory: ".") 57 !2 = !{} 58 !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2) 59 !5 = !DIFile(filename: "multiple.c", directory: ".") 60 !6 = !DISubroutineType(types: !{null, !13}) 61 !13 = !DIBasicType(encoding: DW_ATE_signed, name: "int", size: 32, align: 32) 62 !7 = !{i32 2, !"Dwarf Version", i32 4} 63 !8 = !{i32 1, !"Debug Info Version", i32 3} 64 !9 = !{!"clang version 3.5 (trunk 199750) (llvm/trunk 199751)"} 65 !10 = !DILocation(line: 3, scope: !11) 66 !11 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4) 67 !12 = !DILocation(line: 4, scope: !4) 68 69 ; CHECK: ![[THEN]] = !DILocation(line: 3, scope: ![[THENBLOCK:[0-9]+]]) 70 ; CHECK: ![[THENBLOCK]] = !DILexicalBlockFile(scope: ![[SCOPE:[0-9]+]],{{.*}} discriminator: 1) 71 ; CHECK: ![[ELSE]] = !DILocation(line: 3, scope: ![[ELSEBLOCK:[0-9]+]]) 72 ; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile(scope: ![[SCOPE]],{{.*}} discriminator: 2) 73
