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
|
; RUN: opt -S -loop-rotate -verify-memoryssa < %s | FileCheck %s
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
define i32 @tak(i32 %x, i32 %y, i32 %z) nounwind ssp !dbg !0 {
; CHECK-LABEL: define i32 @tak(
; CHECK: entry
; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 %x
; CHECK: tail call void @llvm.dbg.value(metadata i32 %call
entry:
br label %tailrecurse
tailrecurse: ; preds = %if.then, %entry
%x.tr = phi i32 [ %x, %entry ], [ %call, %if.then ]
%y.tr = phi i32 [ %y, %entry ], [ %call9, %if.then ]
%z.tr = phi i32 [ %z, %entry ], [ %call14, %if.then ]
tail call void @llvm.dbg.value(metadata i32 %x.tr, metadata !6, metadata !DIExpression()), !dbg !7
tail call void @llvm.dbg.value(metadata i32 %y.tr, metadata !8, metadata !DIExpression()), !dbg !9
tail call void @llvm.dbg.value(metadata i32 %z.tr, metadata !10, metadata !DIExpression()), !dbg !11
%cmp = icmp slt i32 %y.tr, %x.tr, !dbg !12
br i1 %cmp, label %if.then, label %if.end, !dbg !12
if.then: ; preds = %tailrecurse
%sub = sub nsw i32 %x.tr, 1, !dbg !14
%call = tail call i32 @tak(i32 %sub, i32 %y.tr, i32 %z.tr), !dbg !14
%sub6 = sub nsw i32 %y.tr, 1, !dbg !14
%call9 = tail call i32 @tak(i32 %sub6, i32 %z.tr, i32 %x.tr), !dbg !14
%sub11 = sub nsw i32 %z.tr, 1, !dbg !14
%call14 = tail call i32 @tak(i32 %sub11, i32 %x.tr, i32 %y.tr), !dbg !14
br label %tailrecurse
if.end: ; preds = %tailrecurse
br label %return, !dbg !16
return: ; preds = %if.end
ret i32 %z.tr, !dbg !17
}
define i32 @tak2(i32 %x, i32 %y, i32 %z) nounwind ssp !dbg !21 {
; CHECK-LABEL: define i32 @tak2(
; CHECK: entry
; CHECK: tail call void @llvm.dbg.value(metadata i32 %x.tr
; CHECK: tail call void @llvm.dbg.value(metadata i32 undef
entry:
br label %tailrecurse
tailrecurse: ; preds = %if.then, %entry
%x.tr = phi i32 [ %x, %entry ], [ %call, %if.then ]
%y.tr = phi i32 [ %y, %entry ], [ %call9, %if.then ]
%z.tr = phi i32 [ %z, %entry ], [ %call14, %if.then ]
%cmp = icmp slt i32 %y.tr, %x.tr, !dbg !22
br i1 %cmp, label %if.then, label %if.end, !dbg !22
if.then: ; preds = %tailrecurse
tail call void @llvm.dbg.value(metadata i32 %x.tr, metadata !36, metadata !DIExpression()), !dbg !37
tail call void @llvm.dbg.value(metadata i32 %y.tr, metadata !38, metadata !DIExpression()), !dbg !39
tail call void @llvm.dbg.value(metadata i32 %z.tr, metadata !40, metadata !DIExpression()), !dbg !41
%sub = sub nsw i32 %x.tr, 1, !dbg !24
%call = tail call i32 @tak(i32 %sub, i32 %y.tr, i32 %z.tr), !dbg !24
%sub6 = sub nsw i32 %y.tr, 1, !dbg !24
%call9 = tail call i32 @tak(i32 %sub6, i32 %z.tr, i32 %x.tr), !dbg !24
%sub11 = sub nsw i32 %z.tr, 1, !dbg !24
%call14 = tail call i32 @tak(i32 %sub11, i32 %x.tr, i32 %y.tr), !dbg !24
br label %tailrecurse
if.end: ; preds = %tailrecurse
tail call void @llvm.dbg.value(metadata i32 %x.tr, metadata !36, metadata !DIExpression()), !dbg !37
tail call void @llvm.dbg.value(metadata i32 %y.tr, metadata !38, metadata !DIExpression()), !dbg !39
tail call void @llvm.dbg.value(metadata i32 %z.tr, metadata !40, metadata !DIExpression()), !dbg !41
br label %return, !dbg !26
return: ; preds = %if.end
ret i32 %z.tr, !dbg !27
}
@channelColumns = external global i64
@horzPlane = external global i8*, align 8
define void @FindFreeHorzSeg(i64 %startCol, i64 %row, i64* %rowStart) {
; Ensure that the loop increment basic block is rotated into the tail of the
; body, even though it contains a debug intrinsic call.
; CHECK-LABEL: define void @FindFreeHorzSeg(
; CHECK: %dec = add
; CHECK-NEXT: tail call void @llvm.dbg.value
; CHECK: %cmp = icmp
; CHECK: br i1 %cmp
; CHECK: phi i64 [ %{{[^,]*}}, %{{[^,]*}} ]
; CHECK-NEXT: br label %for.end
entry:
br label %for.cond
for.cond:
%i.0 = phi i64 [ %startCol, %entry ], [ %dec, %for.inc ]
%cmp = icmp eq i64 %i.0, 0
br i1 %cmp, label %for.end, label %for.body
for.body:
%0 = load i64, i64* @channelColumns, align 8
%mul = mul i64 %0, %row
%add = add i64 %mul, %i.0
%1 = load i8*, i8** @horzPlane, align 8
%arrayidx = getelementptr inbounds i8, i8* %1, i64 %add
%2 = load i8, i8* %arrayidx, align 1
%tobool = icmp eq i8 %2, 0
br i1 %tobool, label %for.inc, label %for.end
for.inc:
%dec = add i64 %i.0, -1
tail call void @llvm.dbg.value(metadata i64 %dec, metadata !DILocalVariable(scope: !0), metadata !DIExpression()), !dbg !DILocation(scope: !0)
br label %for.cond
for.end:
%add1 = add i64 %i.0, 1
store i64 %add1, i64* %rowStart, align 8
ret void
}
!llvm.module.flags = !{!20}
!llvm.dbg.cu = !{!2}
!0 = distinct !DISubprogram(name: "tak", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !18, scope: !1, type: !3)
!1 = !DIFile(filename: "/Volumes/Lalgate/cj/llvm/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame/recursive.c", directory: "/Volumes/Lalgate/cj/D/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame")
!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 125492)", isOptimized: true, emissionKind: FullDebug, file: !18)
!3 = !DISubroutineType(types: !4)
!4 = !{!5}
!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!6 = !DILocalVariable(name: "x", line: 32, arg: 1, scope: !0, file: !1, type: !5)
!7 = !DILocation(line: 32, column: 13, scope: !0)
!8 = !DILocalVariable(name: "y", line: 32, arg: 2, scope: !0, file: !1, type: !5)
!9 = !DILocation(line: 32, column: 20, scope: !0)
!10 = !DILocalVariable(name: "z", line: 32, arg: 3, scope: !0, file: !1, type: !5)
!11 = !DILocation(line: 32, column: 27, scope: !0)
!12 = !DILocation(line: 33, column: 3, scope: !13)
!13 = distinct !DILexicalBlock(line: 32, column: 30, file: !18, scope: !0)
!14 = !DILocation(line: 34, column: 5, scope: !15)
!15 = distinct !DILexicalBlock(line: 33, column: 14, file: !18, scope: !13)
!16 = !DILocation(line: 36, column: 3, scope: !13)
!17 = !DILocation(line: 37, column: 1, scope: !13)
!18 = !DIFile(filename: "/Volumes/Lalgate/cj/llvm/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame/recursive.c", directory: "/Volumes/Lalgate/cj/D/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame")
!20 = !{i32 1, !"Debug Info Version", i32 3}
!21 = distinct !DISubprogram(name: "tak", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !18, scope: !1, type: !3)
!22 = !DILocation(line: 33, column: 3, scope: !23)
!23 = distinct !DILexicalBlock(line: 32, column: 30, file: !18, scope: !21)
!24 = !DILocation(line: 34, column: 5, scope: !25)
!25 = distinct !DILexicalBlock(line: 33, column: 14, file: !18, scope: !23)
!26 = !DILocation(line: 36, column: 3, scope: !23)
!27 = !DILocation(line: 37, column: 1, scope: !23)
!36 = !DILocalVariable(name: "x", line: 32, arg: 1, scope: !21, file: !1, type: !5)
!37 = !DILocation(line: 32, column: 13, scope: !21)
!38 = !DILocalVariable(name: "y", line: 32, arg: 2, scope: !21, file: !1, type: !5)
!39 = !DILocation(line: 32, column: 20, scope: !21)
!40 = !DILocalVariable(name: "z", line: 32, arg: 3, scope: !21, file: !1, type: !5)
!41 = !DILocation(line: 32, column: 27, scope: !21)
|
