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
|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
# RUN: llc --aarch64-enable-sink-fold=true --run-pass=machine-sink %s -o - | FileCheck %s
--- |
source_filename = "dbg.c"
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-linux"
define dso_local void @g(i32 noundef %x) local_unnamed_addr !dbg !11 {
entry:
call void @llvm.dbg.value(metadata i32 %x, metadata !16, metadata !DIExpression()), !dbg !20
%add = add nsw i32 %x, 1, !dbg !21
call void @llvm.dbg.value(metadata i32 %add, metadata !17, metadata !DIExpression()), !dbg !20
call void @llvm.dbg.value(metadata i32 %add, metadata !18, metadata !DIExpression()), !dbg !20
%call = tail call i32 @f(i32 noundef %add), !dbg !22
call void @llvm.dbg.value(metadata i32 %add, metadata !19, metadata !DIExpression()), !dbg !20
%call1 = tail call i32 @f(i32 noundef %add), !dbg !23
ret void, !dbg !24
}
declare !dbg !25 i32 @f(i32 noundef)
declare void @llvm.dbg.value(metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8, !9}
!llvm.ident = !{!10}
!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 18.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "dbg.c", directory: "/home/sweet", checksumkind: CSK_MD5, checksum: "b6bd7ad2140c696af9201a17ab73c918")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{i32 1, !"wchar_size", i32 4}
!5 = !{i32 8, !"PIC Level", i32 2}
!6 = !{i32 7, !"PIE Level", i32 2}
!7 = !{i32 7, !"uwtable", i32 2}
!8 = !{i32 7, !"frame-pointer", i32 1}
!9 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
!10 = !{!"clang version 18.0.0"}
!11 = distinct !DISubprogram(name: "g", scope: !1, file: !1, line: 3, type: !12, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
!12 = !DISubroutineType(types: !13)
!13 = !{null, !14}
!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!15 = !{!16, !17, !18, !19}
!16 = !DILocalVariable(name: "x", arg: 1, scope: !11, file: !1, line: 3, type: !14)
!17 = !DILocalVariable(name: "y", scope: !11, file: !1, line: 4, type: !14)
!18 = !DILocalVariable(name: "t0", scope: !11, file: !1, line: 6, type: !14)
!19 = !DILocalVariable(name: "t1", scope: !11, file: !1, line: 9, type: !14)
!20 = !DILocation(line: 0, scope: !11)
!21 = !DILocation(line: 4, column: 13, scope: !11)
!22 = !DILocation(line: 7, column: 3, scope: !11)
!23 = !DILocation(line: 10, column: 3, scope: !11)
!24 = !DILocation(line: 11, column: 1, scope: !11)
!25 = !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !26, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
!26 = !DISubroutineType(types: !27)
!27 = !{!14, !14}
...
---
name: g
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
callsEHReturn: false
callsUnwindInit: false
hasEHContTarget: false
hasEHScopes: false
hasEHFunclets: false
isOutlined: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: false
registers:
- { id: 0, class: gpr32common, preferred-register: '' }
- { id: 1, class: gpr32sp, preferred-register: '' }
- { id: 2, class: gpr32all, preferred-register: '' }
liveins:
- { reg: '$w0', virtual-reg: '%0' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: true
hasCalls: true
stackProtector: ''
functionContext: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: true
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack: []
entry_values: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
liveins: $w0
; CHECK-LABEL: name: g
; CHECK: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: DBG_VALUE $w0, $noreg, !16, !DIExpression(), debug-location !20
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr32common = COPY $w0
; CHECK-NEXT: DBG_VALUE [[COPY]], $noreg, !16, !DIExpression(), debug-location !20
; CHECK-NEXT: DBG_VALUE $noreg, $noreg, !17, !DIExpression(), debug-location !20
; CHECK-NEXT: DBG_VALUE $noreg, $noreg, !18, !DIExpression(), debug-location !20
; CHECK-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp, debug-location !22
; CHECK-NEXT: $w0 = nsw ADDWri [[COPY]], 1, 0, debug-location !21
; CHECK-NEXT: BL @f, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit-def $sp, implicit-def $w0, debug-location !22
; CHECK-NEXT: ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp, debug-location !22
; CHECK-NEXT: DBG_VALUE $noreg, $noreg, !19, !DIExpression(), debug-location !20
; CHECK-NEXT: $w0 = nsw ADDWri [[COPY]], 1, 0, debug-location !21
; CHECK-NEXT: TCRETURNdi @f, 0, csr_aarch64_aapcs, implicit $sp, implicit $w0, debug-location !23
DBG_VALUE $w0, $noreg, !16, !DIExpression(), debug-location !20
%0:gpr32common = COPY $w0
DBG_VALUE %0, $noreg, !16, !DIExpression(), debug-location !20
%1:gpr32sp = nsw ADDWri %0, 1, 0, debug-location !21
DBG_VALUE %1, $noreg, !17, !DIExpression(), debug-location !20
DBG_VALUE %1, $noreg, !18, !DIExpression(), debug-location !20
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp, debug-location !22
$w0 = COPY %1, debug-location !22
BL @f, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit-def $sp, implicit-def $w0, debug-location !22
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp, debug-location !22
DBG_VALUE %1, $noreg, !19, !DIExpression(), debug-location !20
$w0 = COPY %1, debug-location !23
TCRETURNdi @f, 0, csr_aarch64_aapcs, implicit $sp, implicit $w0, debug-location !23
...
|