1; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s 2 3; Test that the only instructions that receive a new discriminator in 4; the block 'if.then' are those that share the same line number as 5; the branch in 'entry'. 6; 7; Original code: 8; 9; void foo(int i) { 10; int x, y; 11; if (i < 10) { x = i; 12; y = -i; 13; } 14; } 15 16define void @foo(i32 %i) #0 !dbg !4 { 17entry: 18 %i.addr = alloca i32, align 4 19 %x = alloca i32, align 4 20 %y = alloca i32, align 4 21 store i32 %i, ptr %i.addr, align 4 22 %0 = load i32, ptr %i.addr, align 4, !dbg !10 23 %cmp = icmp slt i32 %0, 10, !dbg !10 24 br i1 %cmp, label %if.then, label %if.end, !dbg !10 25 26if.then: ; preds = %entry 27 %1 = load i32, ptr %i.addr, align 4, !dbg !12 28 store i32 %1, ptr %x, align 4, !dbg !12 29 30 %2 = load i32, ptr %i.addr, align 4, !dbg !14 31; CHECK: %2 = load i32, ptr %i.addr, align 4, !dbg ![[THEN:[0-9]+]] 32 33 %sub = sub nsw i32 0, %2, !dbg !14 34; CHECK: %sub = sub nsw i32 0, %2, !dbg ![[THEN]] 35 36 store i32 %sub, ptr %y, align 4, !dbg !14 37; CHECK: store i32 %sub, ptr %y, align 4, !dbg ![[THEN]] 38 39 br label %if.end, !dbg !15 40; CHECK: br label %if.end, !dbg ![[BR:[0-9]+]] 41 42if.end: ; preds = %if.then, %entry 43 ret void, !dbg !16 44; CHECK: ret void, !dbg ![[END:[0-9]+]] 45} 46 47attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 48 49!llvm.dbg.cu = !{!0} 50!llvm.module.flags = !{!7, !8} 51!llvm.ident = !{!9} 52 53!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) 54!1 = !DIFile(filename: "first-only.c", directory: ".") 55!2 = !{} 56!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, retainedNodes: !2) 57!5 = !DIFile(filename: "first-only.c", directory: ".") 58!6 = !DISubroutineType(types: !{null}) 59!7 = !{i32 2, !"Dwarf Version", i32 4} 60!8 = !{i32 1, !"Debug Info Version", i32 3} 61!9 = !{!"clang version 3.5 (trunk 199750) (llvm/trunk 199751)"} 62!10 = !DILocation(line: 3, scope: !11) 63 64!11 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4) 65; CHECK: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo" 66; CHECK: ![[BLOCK1:[0-9]+]] = distinct !DILexicalBlock(scope: ![[FOO]],{{.*}} line: 3) 67 68!12 = !DILocation(line: 3, scope: !13) 69 70!13 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !11) 71; CHECK: !DILexicalBlockFile(scope: ![[BLOCK2:[0-9]+]],{{.*}} discriminator: 2) 72 73!14 = !DILocation(line: 4, scope: !13) 74; CHECK: ![[BLOCK2]] = distinct !DILexicalBlock(scope: ![[BLOCK1]],{{.*}} line: 3) 75 76!15 = !DILocation(line: 5, scope: !13) 77; CHECK: ![[THEN]] = !DILocation(line: 4, scope: ![[BLOCK2]]) 78 79!16 = !DILocation(line: 6, scope: !4) 80; CHECK: ![[BR]] = !DILocation(line: 5, scope: ![[BLOCK2]]) 81; CHECK: ![[END]] = !DILocation(line: 6, scope: ![[FOO]]) 82 83