1; RUN: llc -march=hexagon < %s
2; REQUIRES: asserts
3
4; Check that we no longer get this error:
5; void llvm::ScheduleDAGMILive::scheduleMI(llvm::SUnit *, bool):
6; Assertion `TopRPTracker.getPos() == CurrentTop && "out of sync"' failed.
7
8target triple = "hexagon"
9
10%struct.A = type { %struct.B*, %struct.B* }
11%struct.B = type { i8*, %struct.B*, %struct.B* }
12
13@.str.4 = external hidden unnamed_addr constant [41 x i8], align 1
14@__func__.fred = external hidden unnamed_addr constant [16 x i8], align 1
15@.str.5 = external hidden unnamed_addr constant [43 x i8], align 1
16
17; Function Attrs: nounwind
18declare void @_Assert(i8*, i8*) #0
19
20; Function Attrs: nounwind
21define void @fred(%struct.A* %pA, %struct.B* %p) #0 !dbg !6 {
22entry:
23  tail call void @llvm.dbg.value(metadata %struct.A* %pA, i64 0, metadata !26, metadata !28), !dbg !29
24  tail call void @llvm.dbg.value(metadata %struct.B* %p, i64 0, metadata !27, metadata !28), !dbg !30
25  %cmp = icmp eq %struct.B* %p, null, !dbg !31
26  br i1 %cmp, label %cond.false, label %cond.end, !dbg !31
27
28cond.false:                                       ; preds = %entry
29  tail call void @_Assert(i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.4, i32 0, i32 0), i8* getelementptr inbounds ([16 x i8], [16 x i8]* @__func__.fred, i32 0, i32 0)) #0, !dbg !32
30  br label %cond.end, !dbg !32
31
32cond.end:                                         ; preds = %cond.false, %entry
33  %cmp1 = icmp eq %struct.A* %pA, null, !dbg !34
34  br i1 %cmp1, label %cond.false3, label %cond.end4, !dbg !34
35
36cond.false3:                                      ; preds = %cond.end
37  tail call void @_Assert(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str.5, i32 0, i32 0), i8* getelementptr inbounds ([16 x i8], [16 x i8]* @__func__.fred, i32 0, i32 0)) #0, !dbg !35
38  br label %cond.end4, !dbg !35
39
40cond.end4:                                        ; preds = %cond.false3, %cond.end
41  %p2 = getelementptr inbounds %struct.A, %struct.A* %pA, i32 0, i32 0, !dbg !36
42  %0 = load %struct.B*, %struct.B** %p2, align 4, !dbg !38, !tbaa !39
43  %cmp5 = icmp eq %struct.B* %0, null, !dbg !44
44  br i1 %cmp5, label %if.then, label %if.end, !dbg !45
45
46if.then:                                          ; preds = %cond.end4
47  %p1 = getelementptr inbounds %struct.A, %struct.A* %pA, i32 0, i32 1, !dbg !46
48  store %struct.B* %p, %struct.B** %p1, align 4, !dbg !48, !tbaa !49
49  store %struct.B* %p, %struct.B** %p2, align 4, !dbg !50, !tbaa !39
50  %p4 = getelementptr inbounds %struct.B, %struct.B* %p, i32 0, i32 1, !dbg !51
51  store %struct.B* null, %struct.B** %p4, align 4, !dbg !52, !tbaa !53
52  %p5 = getelementptr inbounds %struct.B, %struct.B* %p, i32 0, i32 2, !dbg !55
53  store %struct.B* null, %struct.B** %p5, align 4, !dbg !56, !tbaa !57
54  br label %return, !dbg !58
55
56if.end:                                           ; preds = %cond.end4
57  %1 = ptrtoint %struct.B* %0 to i32, !dbg !59
58  %p57 = getelementptr inbounds %struct.B, %struct.B* %p, i32 0, i32 2, !dbg !60
59  store %struct.B* null, %struct.B** %p57, align 4, !dbg !61, !tbaa !57
60  %p49 = getelementptr inbounds %struct.B, %struct.B* %p, i32 0, i32 1, !dbg !62
61  %2 = bitcast %struct.B** %p49 to i32*, !dbg !63
62  store i32 %1, i32* %2, align 4, !dbg !63, !tbaa !53
63  %p511 = getelementptr inbounds %struct.B, %struct.B* %0, i32 0, i32 2, !dbg !64
64  store %struct.B* %p, %struct.B** %p511, align 4, !dbg !65, !tbaa !57
65  store %struct.B* %p, %struct.B** %p2, align 4, !dbg !66, !tbaa !39
66  br label %return, !dbg !67
67
68return:                                           ; preds = %if.end, %if.then
69  ret void, !dbg !68
70}
71
72; Function Attrs: nounwind readnone
73declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
74
75attributes #0 = { nounwind }
76attributes #1 = { nounwind readnone }
77
78!llvm.dbg.cu = !{!0}
79!llvm.module.flags = !{!3, !4}
80!llvm.ident = !{!5}
81
82!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
83!1 = !DIFile(filename: "bug.c", directory: "/")
84!2 = !{}
85!3 = !{i32 2, !"Dwarf Version", i32 4}
86!4 = !{i32 2, !"Debug Info Version", i32 3}
87!5 = !{!"clang version 3.9.0"}
88!6 = distinct !DISubprogram(name: "fred", scope: !1, file: !1, line: 138, type: !7, isLocal: false, isDefinition: true, scopeLine: 139, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !25)
89!7 = !DISubroutineType(types: !8)
90!8 = !{null, !9, !15}
91!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 32, align: 32)
92!10 = !DIDerivedType(tag: DW_TAG_typedef, name: "A", file: !11, line: 57, baseType: !12)
93!11 = !DIFile(filename: "bug.h", directory: "/")
94!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !11, line: 54, size: 64, align: 32, elements: !13)
95!13 = !{!14, !24}
96!14 = !DIDerivedType(tag: DW_TAG_member, name: "p2", scope: !12, file: !11, line: 55, baseType: !15, size: 32, align: 32)
97!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 32, align: 32)
98!16 = !DIDerivedType(tag: DW_TAG_typedef, name: "B", file: !11, line: 50, baseType: !17)
99!17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !11, line: 45, size: 96, align: 32, elements: !18)
100!18 = !{!19, !21, !23}
101!19 = !DIDerivedType(tag: DW_TAG_member, name: "p3", scope: !17, file: !11, line: 47, baseType: !20, size: 32, align: 32)
102!20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 32, align: 32)
103!21 = !DIDerivedType(tag: DW_TAG_member, name: "p4", scope: !17, file: !11, line: 48, baseType: !22, size: 32, align: 32, offset: 32)
104!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 32, align: 32)
105!23 = !DIDerivedType(tag: DW_TAG_member, name: "p5", scope: !17, file: !11, line: 49, baseType: !22, size: 32, align: 32, offset: 64)
106!24 = !DIDerivedType(tag: DW_TAG_member, name: "p1", scope: !12, file: !11, line: 56, baseType: !15, size: 32, align: 32, offset: 32)
107!25 = !{!26, !27}
108!26 = !DILocalVariable(name: "pA", arg: 1, scope: !6, file: !1, line: 138, type: !9)
109!27 = !DILocalVariable(name: "p", arg: 2, scope: !6, file: !1, line: 138, type: !15)
110!28 = !DIExpression()
111!29 = !DILocation(line: 138, column: 34, scope: !6)
112!30 = !DILocation(line: 138, column: 57, scope: !6)
113!31 = !DILocation(line: 140, column: 5, scope: !6)
114!32 = !DILocation(line: 140, column: 5, scope: !33)
115!33 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 2)
116!34 = !DILocation(line: 141, column: 5, scope: !6)
117!35 = !DILocation(line: 141, column: 5, scope: !33)
118!36 = !DILocation(line: 143, column: 30, scope: !37)
119!37 = distinct !DILexicalBlock(scope: !6, file: !1, line: 143, column: 9)
120!38 = !DILocation(line: 155, column: 18, scope: !6)
121!39 = !{!40, !41, i64 0}
122!40 = !{!"", !41, i64 0, !41, i64 4}
123!41 = !{!"any pointer", !42, i64 0}
124!42 = !{!"omnipotent char", !43, i64 0}
125!43 = !{!"Simple C/C++ TBAA"}
126!44 = !DILocation(line: 143, column: 14, scope: !37)
127!45 = !DILocation(line: 143, column: 9, scope: !6)
128!46 = !DILocation(line: 146, column: 26, scope: !47)
129!47 = distinct !DILexicalBlock(scope: !37, file: !1, line: 143, column: 41)
130!48 = !DILocation(line: 146, column: 36, scope: !47)
131!49 = !{!40, !41, i64 4}
132!50 = !DILocation(line: 145, column: 32, scope: !47)
133!51 = !DILocation(line: 147, column: 20, scope: !47)
134!52 = !DILocation(line: 147, column: 29, scope: !47)
135!53 = !{!54, !41, i64 4}
136!54 = !{!"B", !41, i64 0, !41, i64 4, !41, i64 8}
137!55 = !DILocation(line: 148, column: 20, scope: !47)
138!56 = !DILocation(line: 148, column: 29, scope: !47)
139!57 = !{!54, !41, i64 8}
140!58 = !DILocation(line: 149, column: 9, scope: !47)
141!59 = !DILocation(line: 154, column: 41, scope: !6)
142!60 = !DILocation(line: 153, column: 16, scope: !6)
143!61 = !DILocation(line: 153, column: 25, scope: !6)
144!62 = !DILocation(line: 154, column: 16, scope: !6)
145!63 = !DILocation(line: 154, column: 26, scope: !6)
146!64 = !DILocation(line: 155, column: 29, scope: !6)
147!65 = !DILocation(line: 155, column: 39, scope: !6)
148!66 = !DILocation(line: 156, column: 28, scope: !6)
149!67 = !DILocation(line: 157, column: 1, scope: !6)
150!68 = !DILocation(line: 157, column: 1, scope: !69)
151!69 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 1)
152