1 ; RUN: opt < %s -add-discriminators -S | FileCheck %s
3 ; We should not generate discriminators for DWARF versions prior to 4.
8 ; if (i < 5) return 2; else return 90;
11 ; None of the !dbg nodes associated with the if() statement should be
12 ; altered. If they are, it means that the discriminators pass added a
15 define i32 @foo(i64 %i) #0 {
17 %retval = alloca i32, align 4
18 %i.addr = alloca i64, align 8
19 store i64 %i, i64* %i.addr, align 8
20 call void @llvm.dbg.declare(metadata i64* %i.addr, metadata !13, metadata !MDExpression()), !dbg !14
21 %0 = load i64, i64* %i.addr, align 8, !dbg !15
22 ; CHECK: %0 = load i64, i64* %i.addr, align 8, !dbg ![[ENTRY:[0-9]+]]
23 %cmp = icmp slt i64 %0, 5, !dbg !15
24 ; CHECK: %cmp = icmp slt i64 %0, 5, !dbg ![[ENTRY:[0-9]+]]
25 br i1 %cmp, label %if.then, label %if.else, !dbg !15
26 ; CHECK: br i1 %cmp, label %if.then, label %if.else, !dbg ![[ENTRY:[0-9]+]]
28 if.then: ; preds = %entry
29 store i32 2, i32* %retval, !dbg !15
30 br label %return, !dbg !15
32 if.else: ; preds = %entry
33 store i32 90, i32* %retval, !dbg !15
34 br label %return, !dbg !15
36 return: ; preds = %if.else, %if.then
37 %1 = load i32, i32* %retval, !dbg !17
41 ; Function Attrs: nounwind readnone
42 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
44 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" }
45 attributes #1 = { nounwind readnone }
48 !llvm.module.flags = !{!10, !11}
51 !0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
52 !1 = !MDFile(filename: "no-discriminators", directory: ".")
55 !4 = !MDSubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i64)* @foo, variables: !2)
56 ; CHECK: ![[FOO:[0-9]+]] = !MDSubprogram(name: "foo"
57 !5 = !MDFile(filename: "no-discriminators", directory: ".")
58 !6 = !MDSubroutineType(types: !7)
60 !8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
61 !9 = !MDBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
62 !10 = !{i32 2, !"Dwarf Version", i32 2}
63 ; CHECK: !{i32 2, !"Dwarf Version", i32 2}
64 !11 = !{i32 1, !"Debug Info Version", i32 3}
65 !12 = !{!"clang version 3.5.0 "}
66 !13 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 1, arg: 1, scope: !4, file: !5, type: !9)
67 !14 = !MDLocation(line: 1, scope: !4)
68 !15 = !MDLocation(line: 2, scope: !16)
69 ; CHECK: ![[ENTRY]] = !MDLocation(line: 2, scope: ![[BLOCK:[0-9]+]])
70 !16 = distinct !MDLexicalBlock(line: 2, column: 0, file: !1, scope: !4)
71 ; CHECK: ![[BLOCK]] = distinct !MDLexicalBlock(scope: ![[FOO]],{{.*}} line: 2)
72 !17 = !MDLocation(line: 3, scope: !4)