1; REQUIRES: object-emission
2
3; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
4; RUN: llvm-dwarfdump %t | FileCheck %s
5
6; IR generated from the following code compiled with clang -g:
7; enum e1 { I, J = 0xffffffffU, K = 0xf000000000000000ULL } a;
8; enum e2 { X };
9; void func() {
10;   int b = X;
11; }
12
13; These values were previously being truncated to -1 and 0 respectively.
14
15; CHECK: debug_info contents
16; CHECK: DW_TAG_enumeration_type
17; CHECK-NEXT: DW_AT_name{{.*}} = "e1"
18; CHECK-NOT: NULL
19; CHECK: DW_TAG_enumerator
20; CHECK-NOT: NULL
21; CHECK: DW_TAG_enumerator
22; CHECK-NEXT: DW_AT_name{{.*}} = "J"
23; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]     (4294967295)
24; CHECK-NOT: NULL
25; CHECK: DW_TAG_enumerator
26; CHECK-NEXT: DW_AT_name{{.*}} = "K"
27; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]     (-1152921504606846976)
28
29; Check that we retain enums that aren't referenced by any variables, etc
30; CHECK: DW_TAG_enumeration_type
31; CHECK-NEXT: DW_AT_name{{.*}} = "e2"
32; CHECK-NOT: NULL
33; CHECK: DW_TAG_enumerator
34; CHECK-NEXT: DW_AT_name{{.*}} = "X"
35
36@a = global i64 0, align 8
37
38; Function Attrs: nounwind uwtable
39define void @_Z4funcv() #0 {
40entry:
41  %b = alloca i32, align 4
42  call void @llvm.dbg.declare(metadata i32* %b, metadata !20, metadata !MDExpression()), !dbg !22
43  store i32 0, i32* %b, align 4, !dbg !22
44  ret void, !dbg !23
45}
46
47; Function Attrs: nounwind readnone
48declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
49
50attributes #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" "unsafe-fp-math"="false" "use-soft-float"="false" }
51attributes #1 = { nounwind readnone }
52
53!llvm.dbg.cu = !{!0}
54!llvm.module.flags = !{!19, !24}
55
56!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !11, subprograms: !12, globals: !17, imports: !11)
57!1 = !MDFile(filename: "enum.cpp", directory: "/tmp")
58!2 = !{!3, !8}
59!3 = !MDCompositeType(tag: DW_TAG_enumeration_type, name: "e1", line: 1, size: 64, align: 64, file: !1, elements: !4)
60!4 = !{!5, !6, !7}
61!5 = !MDEnumerator(name: "I", value: 0) ; [ DW_TAG_enumerator ] [I :: 0]
62!6 = !MDEnumerator(name: "J", value: 4294967295) ; [ DW_TAG_enumerator ] [J :: 4294967295]
63!7 = !MDEnumerator(name: "K", value: -1152921504606846976) ; [ DW_TAG_enumerator ] [K :: 17293822569102704640]
64!8 = !MDCompositeType(tag: DW_TAG_enumeration_type, name: "e2", line: 2, size: 32, align: 32, file: !1, elements: !9)
65!9 = !{!10}
66!10 = !MDEnumerator(name: "X", value: 0) ; [ DW_TAG_enumerator ] [X :: 0]
67!11 = !{}
68!12 = !{!13}
69!13 = !MDSubprogram(name: "func", linkageName: "_Z4funcv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !14, type: !15, function: void ()* @_Z4funcv, variables: !11)
70!14 = !MDFile(filename: "enum.cpp", directory: "/tmp")
71!15 = !MDSubroutineType(types: !16)
72!16 = !{null}
73!17 = !{!18}
74!18 = !MDGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !14, type: !3, variable: i64* @a)
75!19 = !{i32 2, !"Dwarf Version", i32 3}
76!20 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 4, scope: !13, file: !14, type: !21)
77!21 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
78!22 = !MDLocation(line: 4, scope: !13)
79!23 = !MDLocation(line: 5, scope: !13)
80!24 = !{i32 1, !"Debug Info Version", i32 3}
81