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
|
; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump --name resource - | FileCheck %s
; CHECK: DW_TAG_formal_parameter
; CHECK: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_location (DW_OP_reg1 W1)
; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"resource"
;
; Inlined variable "resource"/!37 covers all blocks in its lexical scope. Check
; that it is given a single location.
;
; Generated from:
; typedef struct t *t_t;
; extern unsigned int enable;
; struct t {
; struct q {
; struct q *next;
; unsigned long long resource;
; } * s;
; } * tt;
; static unsigned long find(t_t t, unsigned long long resource) {
; struct q *q;
; q = t->s;
; while (q) {
; if (q->resource == resource)
; return q;
; q = q->next;
; }
; }
; int g(t_t t, unsigned long long r) {
; struct q *q;
; q = find(t, r);
; if (!q)
; if (__builtin_expect(enable, 0)) { }
; }
; ModuleID = 'inlined-arg.c'
source_filename = "inlined-arg.c"
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios5.0.0"
%struct.t = type { %struct.q* }
%struct.q = type { %struct.q*, i64 }
@tt = common local_unnamed_addr global %struct.t* null, align 8, !dbg !0
; Function Attrs: norecurse nounwind readonly ssp uwtable
define i32 @g(%struct.t* nocapture readonly %t, i64 %r) local_unnamed_addr !dbg !21 {
entry:
call void @llvm.dbg.value(metadata %struct.t* %t, metadata !27, metadata !DIExpression()), !dbg !30
call void @llvm.dbg.value(metadata i64 %r, metadata !28, metadata !DIExpression()), !dbg !31
call void @llvm.dbg.value(metadata %struct.t* %t, metadata !32, metadata !DIExpression()), !dbg !39
call void @llvm.dbg.value(metadata i64 %r, metadata !37, metadata !DIExpression()), !dbg !41
%s.i = getelementptr inbounds %struct.t, %struct.t* %t, i64 0, i32 0, !dbg !42
%q.05.i = load %struct.q*, %struct.q** %s.i, align 8, !dbg !43, !tbaa !44
call void @llvm.dbg.value(metadata %struct.q* %q.05.i, metadata !38, metadata !DIExpression()), !dbg !48
%tobool6.i = icmp eq %struct.q* %q.05.i, null, !dbg !49
br i1 %tobool6.i, label %find.exit, label %while.body.i, !dbg !49
while.body.i: ; preds = %entry, %if.end.i
%q.07.i = phi %struct.q* [ %q.0.i, %if.end.i ], [ %q.05.i, %entry ]
%resource1.i = getelementptr inbounds %struct.q, %struct.q* %q.07.i, i64 0, i32 1, !dbg !50
%0 = load i64, i64* %resource1.i, align 8, !dbg !50, !tbaa !53
%cmp.i = icmp eq i64 %0, %r, !dbg !56
br i1 %cmp.i, label %find.exit, label %if.end.i, !dbg !57
if.end.i: ; preds = %while.body.i
%next.i = getelementptr inbounds %struct.q, %struct.q* %q.07.i, i64 0, i32 0, !dbg !58
%q.0.i = load %struct.q*, %struct.q** %next.i, align 8, !dbg !43, !tbaa !44
call void @llvm.dbg.value(metadata %struct.q* %q.0.i, metadata !38, metadata !DIExpression()), !dbg !48
%tobool.i = icmp eq %struct.q* %q.0.i, null, !dbg !49
br i1 %tobool.i, label %find.exit, label %while.body.i, !dbg !49, !llvm.loop !59
find.exit: ; preds = %while.body.i, %if.end.i, %entry
call void @llvm.dbg.value(metadata %struct.q* undef, metadata !29, metadata !DIExpression()), !dbg !61
ret i32 undef, !dbg !62
}
; Function Attrs: nounwind readnone speculatable
declare void @llvm.dbg.value(metadata, metadata, metadata)
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!16, !17, !18, !19}
!llvm.ident = !{!20}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "tt", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git cd3671d5dabc8848619d872f994770167a44ac5a)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU)
!3 = !DIFile(filename: "inlined-arg.c", directory: "")
!4 = !{}
!5 = !{!0}
!6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64)
!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t", file: !3, line: 3, size: 64, elements: !8)
!8 = !{!9}
!9 = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: !7, file: !3, line: 7, baseType: !10, size: 64)
!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)
!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "q", file: !3, line: 4, size: 128, elements: !12)
!12 = !{!13, !14}
!13 = !DIDerivedType(tag: DW_TAG_member, name: "next", scope: !11, file: !3, line: 5, baseType: !10, size: 64)
!14 = !DIDerivedType(tag: DW_TAG_member, name: "resource", scope: !11, file: !3, line: 6, baseType: !15, size: 64, offset: 64)
!15 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
!16 = !{i32 2, !"Dwarf Version", i32 2}
!17 = !{i32 2, !"Debug Info Version", i32 3}
!18 = !{i32 1, !"wchar_size", i32 4}
!19 = !{i32 7, !"PIC Level", i32 2}
!20 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git cd3671d5dabc8848619d872f994770167a44ac5a)"}
!21 = distinct !DISubprogram(name: "g", scope: !3, file: !3, line: 19, type: !22, scopeLine: 19, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !26)
!22 = !DISubroutineType(types: !23)
!23 = !{!24, !25, !15}
!24 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!25 = !DIDerivedType(tag: DW_TAG_typedef, name: "t_t", file: !3, line: 1, baseType: !6)
!26 = !{!27, !28, !29}
!27 = !DILocalVariable(name: "t", arg: 1, scope: !21, file: !3, line: 19, type: !25)
!28 = !DILocalVariable(name: "r", arg: 2, scope: !21, file: !3, line: 19, type: !15)
!29 = !DILocalVariable(name: "q", scope: !21, file: !3, line: 20, type: !10)
!30 = !DILocation(line: 19, column: 11, scope: !21)
!31 = !DILocation(line: 19, column: 33, scope: !21)
!32 = !DILocalVariable(name: "t", arg: 1, scope: !33, file: !3, line: 10, type: !25)
!33 = distinct !DISubprogram(name: "find", scope: !3, file: !3, line: 10, type: !34, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !36)
!34 = !DISubroutineType(types: !35)
!35 = !{!10, !25, !15}
!36 = !{!32, !37, !38}
!37 = !DILocalVariable(name: "resource", arg: 2, scope: !33, file: !3, line: 10, type: !15)
!38 = !DILocalVariable(name: "q", scope: !33, file: !3, line: 11, type: !10)
!39 = !DILocation(line: 10, column: 27, scope: !33, inlinedAt: !40)
!40 = distinct !DILocation(line: 21, column: 7, scope: !21)
!41 = !DILocation(line: 10, column: 49, scope: !33, inlinedAt: !40)
!42 = !DILocation(line: 12, column: 10, scope: !33, inlinedAt: !40)
!43 = !DILocation(line: 0, scope: !33, inlinedAt: !40)
!44 = !{!45, !45, i64 0}
!45 = !{!"any pointer", !46, i64 0}
!46 = !{!"omnipotent char", !47, i64 0}
!47 = !{!"Simple C/C++ TBAA"}
!48 = !DILocation(line: 11, column: 13, scope: !33, inlinedAt: !40)
!49 = !DILocation(line: 13, column: 3, scope: !33, inlinedAt: !40)
!50 = !DILocation(line: 14, column: 12, scope: !51, inlinedAt: !40)
!51 = distinct !DILexicalBlock(scope: !52, file: !3, line: 14, column: 9)
!52 = distinct !DILexicalBlock(scope: !33, file: !3, line: 13, column: 13)
!53 = !{!54, !55, i64 8}
!54 = !{!"q", !45, i64 0, !55, i64 8}
!55 = !{!"long long", !46, i64 0}
!56 = !DILocation(line: 14, column: 21, scope: !51, inlinedAt: !40)
!57 = !DILocation(line: 14, column: 9, scope: !52, inlinedAt: !40)
!58 = !DILocation(line: 16, column: 12, scope: !52, inlinedAt: !40)
!59 = distinct !{!59, !49, !60}
!60 = !DILocation(line: 17, column: 3, scope: !33, inlinedAt: !40)
!61 = !DILocation(line: 20, column: 13, scope: !21)
!62 = !DILocation(line: 24, column: 1, scope: !21)
|
