1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
; REQUIRES: x86_64-linux
; RUN: opt < %s -simplifycfg -S -o %t
; RUN: FileCheck %s < %t
; Test to make sure the dangling probe is gone.
; CHECK: define dso_local i32 @foo
; CHECK-NOT: call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 5
; Function Attrs: nounwind uwtable
define dso_local i32 @foo(i32* nocapture %marker, i32* nocapture %move_ordering, i32* nocapture %moves, i32 %num_moves) local_unnamed_addr #0 !dbg !10 {
entry:
call void @llvm.dbg.value(metadata i32* %marker, metadata !19, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32* %move_ordering, metadata !20, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32* %moves, metadata !21, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32 %num_moves, metadata !22, metadata !DIExpression()), !dbg !28
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 1, i32 0, i64 -1), !dbg !29
call void @llvm.dbg.value(metadata i32 -1000000, metadata !25, metadata !DIExpression()), !dbg !28
%0 = load i32, i32* %marker, align 4, !dbg !30, !tbaa !31
%inc = add nsw i32 %0, 1, !dbg !30
store i32 %inc, i32* %marker, align 4, !dbg !30, !tbaa !31
call void @llvm.dbg.value(metadata i32 %inc, metadata !27, metadata !DIExpression()), !dbg !28
%cmp = icmp slt i32 %0, 9, !dbg !35
br i1 %cmp, label %for.cond, label %if.else, !dbg !37
for.cond: ; preds = %entry, %for.inc
%i.0 = phi i32 [ %inc6, %for.inc ], [ %inc, %entry ], !dbg !38
%best.0 = phi i32 [ %best.1, %for.inc ], [ -1000000, %entry ], !dbg !28
%tmp.0 = phi i32 [ %tmp.1, %for.inc ], [ undef, %entry ]
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 2, i32 2, i64 -1), !dbg !41
call void @llvm.dbg.value(metadata i32 %tmp.0, metadata !26, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32 %best.0, metadata !25, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32 %i.0, metadata !24, metadata !DIExpression()), !dbg !28
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 3, i32 0, i64 -1), !dbg !42
%cmp1 = icmp slt i32 %i.0, %num_moves, !dbg !44
br i1 %cmp1, label %for.body, label %if.end12, !dbg !45
for.body: ; preds = %for.cond
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 4, i32 0, i64 -1), !dbg !46
%idxprom = sext i32 %i.0 to i64, !dbg !46
%arrayidx = getelementptr inbounds i32, i32* %move_ordering, i64 %idxprom, !dbg !46
%1 = load i32, i32* %arrayidx, align 4, !dbg !46, !tbaa !31
%cmp2 = icmp sgt i32 %1, %best.0, !dbg !49
br i1 %cmp2, label %if.then3, label %for.inc, !dbg !50
if.then3: ; preds = %for.body
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 5, i32 0, i64 -1), !dbg !51
call void @llvm.dbg.value(metadata i32 %1, metadata !25, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32 %i.0, metadata !26, metadata !DIExpression()), !dbg !28
br label %for.inc, !dbg !53
for.inc: ; preds = %for.body, %if.then3
%best.1 = phi i32 [ %1, %if.then3 ], [ %best.0, %for.body ], !dbg !28
%tmp.1 = phi i32 [ %i.0, %if.then3 ], [ %tmp.0, %for.body ]
call void @llvm.dbg.value(metadata i32 %tmp.1, metadata !26, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32 %best.1, metadata !25, metadata !DIExpression()), !dbg !28
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 6, i32 0, i64 -1), !dbg !54
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 7, i32 0, i64 -1), !dbg !55
%inc6 = add nsw i32 %i.0, 1, !dbg !55
call void @llvm.dbg.value(metadata i32 %inc6, metadata !24, metadata !DIExpression()), !dbg !28
br label %for.cond, !dbg !56, !llvm.loop !57
if.else: ; preds = %entry
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 9, i32 0, i64 -1), !dbg !59
%cmp7 = icmp slt i32 %inc, %num_moves, !dbg !61
br i1 %cmp7, label %cleanup, label %if.end12, !dbg !62
if.end12: ; preds = %if.else, %for.cond
%best.2 = phi i32 [ %best.0, %for.cond ], [ -1000000, %if.else ], !dbg !63
%tmp.2 = phi i32 [ %tmp.0, %for.cond ], [ undef, %if.else ]
call void @llvm.dbg.value(metadata i32 %tmp.2, metadata !26, metadata !DIExpression()), !dbg !28
call void @llvm.dbg.value(metadata i32 %best.2, metadata !25, metadata !DIExpression()), !dbg !28
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 11, i32 2, i64 -1), !dbg !28
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 8, i32 2, i64 -1), !dbg !64
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 12, i32 0, i64 -1), !dbg !65
%cmp13 = icmp sgt i32 %best.2, -1000000, !dbg !67
br i1 %cmp13, label %if.then14, label %cleanup, !dbg !68
if.then14: ; preds = %if.end12
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 13, i32 0, i64 -1), !dbg !69
br label %cleanup, !dbg !78
cleanup: ; preds = %if.end12, %if.else, %if.then14
%retval.0 = phi i32 [ 1, %if.then14 ], [ 1, %if.else ], [ 0, %if.end12 ], !dbg !28
call void @llvm.pseudoprobe(i64 -4224472938262609671, i64 14, i32 2, i64 -1), !dbg !79
ret i32 %retval.0, !dbg !83
}
; Function Attrs: inaccessiblememonly nounwind willreturn mustprogress
declare void @llvm.pseudoprobe(i64, i64, i32, i64) #1
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.value(metadata, metadata, metadata) #2
attributes #0 = { nounwind uwtable "disable-tail-calls"="true" "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { inaccessiblememonly nounwind willreturn mustprogress }
attributes #2 = { nofree nosync nounwind readnone speculatable willreturn }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5, !6, !7}
!llvm.ident = !{!8}
!llvm.pseudo_probe_desc = !{!9}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.cpp", directory: "")
!2 = !{}
!3 = !{i32 7, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{i32 1, !"ThinLTO", i32 0}
!7 = !{i32 1, !"EnableSplitLTOUnit", i32 1}
!8 = !{!"clang version 13.0.0"}
!9 = !{i64 -4224472938262609671, i64 328037311046, !"foo", null}
!10 = distinct !DISubprogram(name: "remove_one_fast", linkageName: "foo", scope: !1, file: !1, line: 8, type: !11, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !18)
!11 = !DISubroutineType(types: !12)
!12 = !{!13, !14, !14, !15, !17}
!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64)
!16 = !DIDerivedType(tag: DW_TAG_typedef, name: "move_s", file: !1, line: 6, baseType: !13)
!17 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !13)
!18 = !{!19, !20, !21, !22, !23, !24, !25, !26, !27}
!19 = !DILocalVariable(name: "marker", arg: 1, scope: !10, file: !1, line: 8, type: !14)
!20 = !DILocalVariable(name: "move_ordering", arg: 2, scope: !10, file: !1, line: 8, type: !14)
!21 = !DILocalVariable(name: "moves", arg: 3, scope: !10, file: !1, line: 9, type: !15)
!22 = !DILocalVariable(name: "num_moves", arg: 4, scope: !10, file: !1, line: 9, type: !17)
!23 = !DILocalVariable(name: "tmpmv", scope: !10, file: !1, line: 10, type: !16)
!24 = !DILocalVariable(name: "i", scope: !10, file: !1, line: 11, type: !13)
!25 = !DILocalVariable(name: "best", scope: !10, file: !1, line: 11, type: !13)
!26 = !DILocalVariable(name: "tmp", scope: !10, file: !1, line: 12, type: !13)
!27 = !DILocalVariable(name: "mark", scope: !10, file: !1, line: 12, type: !13)
!28 = !DILocation(line: 0, scope: !10)
!29 = !DILocation(line: 10, column: 5, scope: !10)
!30 = !DILocation(line: 14, column: 14, scope: !10)
!31 = !{!32, !32, i64 0}
!32 = !{!"int", !33, i64 0}
!33 = !{!"omnipotent char", !34, i64 0}
!34 = !{!"Simple C++ TBAA"}
!35 = !DILocation(line: 17, column: 14, scope: !36)
!36 = distinct !DILexicalBlock(scope: !10, file: !1, line: 17, column: 9)
!37 = !DILocation(line: 17, column: 9, scope: !10)
!38 = !DILocation(line: 0, scope: !39)
!39 = distinct !DILexicalBlock(scope: !40, file: !1, line: 18, column: 9)
!40 = distinct !DILexicalBlock(scope: !36, file: !1, line: 17, column: 20)
!41 = !DILocation(line: 18, column: 18, scope: !39)
!42 = !DILocation(line: 18, column: 24, scope: !43)
!43 = distinct !DILexicalBlock(scope: !39, file: !1, line: 18, column: 9)
!44 = !DILocation(line: 18, column: 26, scope: !43)
!45 = !DILocation(line: 18, column: 9, scope: !39)
!46 = !DILocation(line: 19, column: 17, scope: !47)
!47 = distinct !DILexicalBlock(scope: !48, file: !1, line: 19, column: 17)
!48 = distinct !DILexicalBlock(scope: !43, file: !1, line: 18, column: 44)
!49 = !DILocation(line: 19, column: 34, scope: !47)
!50 = !DILocation(line: 19, column: 17, scope: !48)
!51 = !DILocation(line: 20, column: 24, scope: !52)
!52 = distinct !DILexicalBlock(scope: !47, file: !1, line: 19, column: 42)
!53 = !DILocation(line: 22, column: 13, scope: !52)
!54 = !DILocation(line: 23, column: 9, scope: !48)
!55 = !DILocation(line: 18, column: 40, scope: !43)
!56 = !DILocation(line: 18, column: 9, scope: !43)
!57 = distinct !{!57, !45, !58}
!58 = !DILocation(line: 23, column: 9, scope: !39)
!59 = !DILocation(line: 24, column: 16, scope: !60)
!60 = distinct !DILexicalBlock(scope: !36, file: !1, line: 24, column: 16)
!61 = !DILocation(line: 24, column: 21, scope: !60)
!62 = !DILocation(line: 24, column: 16, scope: !36)
!63 = !DILocation(line: 11, column: 12, scope: !10)
!64 = !DILocation(line: 24, column: 5, scope: !40)
!65 = !DILocation(line: 31, column: 9, scope: !66)
!66 = distinct !DILexicalBlock(scope: !10, file: !1, line: 31, column: 9)
!67 = !DILocation(line: 31, column: 14, scope: !66)
!68 = !DILocation(line: 31, column: 9, scope: !10)
!69 = !DILocation(line: 35, column: 30, scope: !70)
!70 = distinct !DILexicalBlock(scope: !66, file: !1, line: 31, column: 22)
!71 = !DILocation(line: 35, column: 9, scope: !70)
!72 = !DILocation(line: 35, column: 28, scope: !70)
!73 = !DILocation(line: 36, column: 29, scope: !70)
!74 = !DILocation(line: 38, column: 17, scope: !70)
!75 = !DILocation(line: 39, column: 23, scope: !70)
!76 = !DILocation(line: 39, column: 21, scope: !70)
!77 = !DILocation(line: 40, column: 20, scope: !70)
!78 = !DILocation(line: 42, column: 9, scope: !70)
!79 = !DILocation(line: 44, column: 9, scope: !80)
!80 = distinct !DILexicalBlock(scope: !66, file: !1, line: 43, column: 12)
!81 = !DILocation(line: 25, column: 16, scope: !82)
!82 = distinct !DILexicalBlock(scope: !60, file: !1, line: 24, column: 34)
!83 = !DILocation(line: 46, column: 1, scope: !10)
|
