1; RUN: llc -mtriple=x86_64-apple-macosx < %s -verify-machineinstrs | FileCheck %s
2;
3; PR16143: MachineOperand::setIsKill(bool): Assertion
4;
5; verify-machineinstrs should ensure that DEBUG_VALUEs go before the
6; terminator.
7;
8; CHECK-LABEL: test:
9; CHECK: ##DEBUG_VALUE: foo:i
10
11%a = type { i32, i32 }
12
13define hidden fastcc %a* @test() #1 !dbg !1 {
14entry:
15  %0 = icmp eq %a* undef, null, !dbg !12
16  br i1 %0, label %"14", label %return, !dbg !12
17
18"14":                                             ; preds = %"8"
19  br i1 undef, label %"25", label %"21", !dbg !12
20
21"21":                                             ; preds = %"14"
22  br i1 undef, label %may_unswitch_on.exit, label %"6.i", !dbg !12
23
24"6.i":                                            ; preds = %"21"
25  br i1 undef, label %"10.i", label %may_unswitch_on.exit, !dbg !12
26
27"10.i":                                           ; preds = %"6.i"
28  br i1 undef, label %may_unswitch_on.exit, label %"12.i", !dbg !12
29
30"12.i":                                           ; preds = %"10.i"
31  br i1 undef, label %"4.i.i", label %"3.i.i", !dbg !12
32
33"3.i.i":                                          ; preds = %"12.i"
34  br i1 undef, label %"4.i.i", label %VEC_edge_base_index.exit.i, !dbg !12
35
36"4.i.i":                                          ; preds = %"3.i.i", %"12.i"
37  unreachable, !dbg !12
38
39VEC_edge_base_index.exit.i:                       ; preds = %"3.i.i"
40  br i1 undef, label %may_unswitch_on.exit, label %"16.i", !dbg !12
41
42"16.i":                                           ; preds = %VEC_edge_base_index.exit.i
43  br i1 undef, label %"4.i6.i", label %"3.i5.i", !dbg !12
44
45"3.i5.i":                                         ; preds = %"16.i"
46  br i1 undef, label %VEC_edge_base_index.exit7.i, label %"4.i6.i", !dbg !12
47
48"4.i6.i":                                         ; preds = %"3.i5.i", %"16.i"
49  unreachable, !dbg !12
50
51VEC_edge_base_index.exit7.i:                      ; preds = %"3.i5.i"
52  br i1 undef, label %may_unswitch_on.exit, label %"21.i", !dbg !12
53
54"21.i":                                           ; preds = %VEC_edge_base_index.exit7.i
55  br i1 undef, label %may_unswitch_on.exit, label %"23.i", !dbg !12
56
57"23.i":                                           ; preds = %"21.i"
58  br i1 undef, label %may_unswitch_on.exit, label %"26.i", !dbg !12
59
60"26.i":                                           ; preds = %"34.i", %"23.i"
61  %1 = icmp eq i32 undef, 9, !dbg !12
62  br i1 %1, label %"34.i", label %"28.i", !dbg !12
63
64"28.i":                                           ; preds = %"26.i"
65  unreachable
66
67"34.i":                                           ; preds = %"26.i"
68  br i1 undef, label %"26.i", label %"36.i", !dbg !12
69
70"36.i":                                           ; preds = %"34.i"
71  br i1 undef, label %"37.i", label %"38.i", !dbg !12
72
73"37.i":                                           ; preds = %"36.i"
74  br label %"38.i", !dbg !12
75
76"38.i":                                           ; preds = %"37.i", %"36.i"
77  br i1 undef, label %"39.i", label %"45.i", !dbg !12
78
79"39.i":                                           ; preds = %"38.i"
80  br i1 undef, label %"41.i", label %may_unswitch_on.exit, !dbg !12
81
82"41.i":                                           ; preds = %"39.i"
83  br i1 undef, label %may_unswitch_on.exit, label %"42.i", !dbg !12
84
85"42.i":                                           ; preds = %"41.i"
86  br i1 undef, label %may_unswitch_on.exit, label %"44.i", !dbg !12
87
88"44.i":                                           ; preds = %"42.i"
89  %2 = load %a*, %a** undef, align 8, !dbg !12
90  %3 = bitcast %a* %2 to %a*, !dbg !12
91  call void @llvm.dbg.value(metadata %a* %3, metadata !6, metadata !DIExpression(DW_OP_deref)), !dbg !12
92  br label %may_unswitch_on.exit, !dbg !12
93
94"45.i":                                           ; preds = %"38.i"
95  unreachable
96
97may_unswitch_on.exit:                             ; preds = %"44.i", %"42.i", %"41.i", %"39.i", %"23.i", %"21.i", %VEC_edge_base_index.exit7.i, %VEC_edge_base_index.exit.i, %"10.i", %"6.i", %"21"
98  %4 = phi %a* [ %3, %"44.i" ], [ null, %"6.i" ], [ null, %"10.i" ], [ null, %VEC_edge_base_index.exit7.i ], [ null, %VEC_edge_base_index.exit.i ], [ null, %"21.i" ], [ null, %"23.i" ], [ null, %"39.i" ], [ null, %"42.i" ], [ null, %"41.i" ], [ null, %"21" ]
99  br label %return
100
101"25":                                             ; preds = %"14"
102  unreachable
103
104"return":
105  %result = phi %a* [ null, %entry ], [ %4, %may_unswitch_on.exit ]
106  ret %a* %result, !dbg !12
107}
108
109attributes #0 = { nounwind readnone }
110attributes #1 = { nounwind uwtable }
111
112declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
113
114!llvm.dbg.cu = !{!0}
115!llvm.module.flags = !{!22}
116
117!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "Apple clang version", isOptimized: true, emissionKind: FullDebug, file: !20, enums: !21, retainedTypes: !21, imports:  null)
118!1 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, file: !20, scope: !2, type: !3, retainedNodes: !19)
119!2 = !DIFile(filename: "a.c", directory: "/private/tmp")
120!3 = !DISubroutineType(types: !4)
121!4 = !{!5}
122!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
123!6 = !DILocalVariable(name: "i", line: 2, arg: 1, scope: !1, file: !2, type: !5)
124!7 = !DILocalVariable(name: "c", line: 2, arg: 2, scope: !1, file: !2, type: !8)
125!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !0, baseType: !9)
126!9 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
127!10 = !DILocalVariable(name: "a", line: 3, scope: !11, file: !2, type: !9)
128!11 = distinct !DILexicalBlock(line: 2, column: 25, file: !20, scope: !1)
129!12 = !DILocation(line: 2, column: 13, scope: !1)
130!19 = !{!6, !7, !10}
131!20 = !DIFile(filename: "a.c", directory: "/private/tmp")
132!21 = !{}
133!22 = !{i32 1, !"Debug Info Version", i32 3}
134