1 ; RUN: opt < %s -add-discriminators -S | FileCheck %s
2 ; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s
4 ; Basic DWARF discriminator test. All the instructions in block
5 ; 'if.then' should have a different discriminator value than
6 ; the conditional branch at the end of block 'entry'.
15 define void @foo(i32 %i) #0 !dbg !4 {
17 %i.addr = alloca i32, align 4
18 %x = alloca i32, align 4
19 store i32 %i, i32* %i.addr, align 4
20 %0 = load i32, i32* %i.addr, align 4, !dbg !10
21 %cmp = icmp slt i32 %0, 10, !dbg !10
22 br i1 %cmp, label %if.then, label %if.end, !dbg !10
24 if.then: ; preds = %entry
25 %1 = load i32, i32* %i.addr, align 4, !dbg !10
26 ; CHECK: %1 = load i32, i32* %i.addr, align 4, !dbg ![[THEN:[0-9]+]]
28 store i32 %1, i32* %x, align 4, !dbg !10
29 ; CHECK: store i32 %1, i32* %x, align 4, !dbg ![[THEN]]
31 br label %if.end, !dbg !10
32 ; CHECK: br label %if.end, !dbg ![[THEN]]
34 if.end: ; preds = %if.then, %entry
36 ; CHECK: ret void, !dbg ![[END:[0-9]+]]
39 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" }
42 !llvm.module.flags = !{!7, !8}
45 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: NoDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
46 !1 = !DIFile(filename: "basic.c", directory: ".")
48 !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)
49 !5 = !DIFile(filename: "basic.c", directory: ".")
50 !6 = !DISubroutineType(types: !2)
51 !7 = !{i32 2, !"Dwarf Version", i32 4}
52 !8 = !{i32 1, !"Debug Info Version", i32 3}
53 !9 = !{!"clang version 3.5 "}
54 !10 = !DILocation(line: 3, scope: !11)
55 !11 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4)
56 !12 = !DILocation(line: 4, scope: !4)
58 ; CHECK: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo"
59 ; CHECK: ![[BLOCK:[0-9]+]] = distinct !DILexicalBlock(scope: ![[FOO]],{{.*}} line: 3)
60 ; CHECK: ![[THEN]] = !DILocation(line: 3, scope: ![[BLOCKFILE:[0-9]+]])
61 ; CHECK: ![[BLOCKFILE]] = !DILexicalBlockFile(scope: ![[BLOCK]],{{.*}} discriminator: 2)
62 ; CHECK: ![[END]] = !DILocation(line: 4, scope: ![[FOO]])