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
|
# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses the machine instruction's
# debug location metadata correctly.
--- |
define i32 @test(i32 %x) #0 !dbg !4 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
%0 = load i32, i32* %x.addr, align 4, !dbg !14
ret i32 %0, !dbg !14
}
define i32 @test_typed_immediates(i32 %x) #0 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
%0 = load i32, i32* %x.addr, align 4, !dbg !14
ret i32 %0, !dbg !14
}
define i32 @test_mir_created(i32 %x) #0 !dbg !15 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
%0 = load i32, i32* %x.addr, align 4
%1 = load i32, i32* %x.addr, align 4
%2 = load i32, i32* %x.addr, align 4
%3 = load i32, i32* %x.addr, align 4
ret i32 %0, !dbg !16
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
attributes #0 = { nounwind "frame-pointer"="none" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "test.ll", directory: "")
!2 = !{}
!4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!5 = !DIFile(filename: "test.c", directory: "")
!6 = !DISubroutineType(types: !7)
!7 = !{!8, !8}
!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !{i32 2, !"Dwarf Version", i32 4}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !{!"clang version 3.7.0"}
!12 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !5, line: 4, type: !8)
!13 = !DILocation(line: 4, scope: !4)
!14 = !DILocation(line: 8, scope: !4)
!15 = distinct !DISubprogram(name: "test_mir_created", scope: !5, file: !5, line: 10, type: !6, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!16 = !DILocation(line: 20, scope: !15)
...
---
name: test
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: x.addr, size: 4, alignment: 4 }
body: |
bb.0.entry:
liveins: $edi
; CHECK: DBG_VALUE $noreg, 0, !11, !DIExpression(), debug-location !12
; CHECK: DBG_VALUE $noreg, 0, !11, !DIExpression(), debug-location !12
; CHECK: $eax = COPY %0, debug-location !13
; CHECK: RET64 $eax, debug-location !13
%0 = COPY $edi
DBG_VALUE _, 0, !12, !DIExpression(), debug-location !13
; Test whether debug-use is still recognized for compatibility with old
; files.
DBG_VALUE debug-use _, 0, !12, !DIExpression(), debug-location !13
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
$eax = COPY %0, debug-location !14
RET64 $eax, debug-location !14
...
---
name: test_typed_immediates
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: x.addr, size: 4, alignment: 4 }
body: |
bb.0.entry:
liveins: $edi
%0 = COPY $edi
; CHECK: DBG_VALUE $noreg, i32 0, !11, !DIExpression()
; CHECK-NEXT: DBG_VALUE $noreg, i64 -22, !11, !DIExpression()
; CHECK-NEXT: DBG_VALUE $noreg, i128 123492148938512984928424384934328985928, !11, !DIExpression()
DBG_VALUE _, i32 0, !12, !DIExpression(), debug-location !13
DBG_VALUE _, i64 -22, !12, !DIExpression(), debug-location !13
DBG_VALUE _, i128 123492148938512984928424384934328985928, !12, !DIExpression(), debug-location !13
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
$eax = COPY %0
RET64 $eax
...
---
name: test_mir_created
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: x.addr, size: 4, alignment: 4 }
body: |
bb.0.entry:
liveins: $edi
%0 = COPY $edi
; CHECK-LABEL: name: test_mir_created
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 1, scope: !14)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 2, column: 2, scope: !14)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 3, column: 2, scope: !14, isImplicitCode: true)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 4, scope: !14, inlinedAt: !15)
; CHECK: MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 5, scope: !14, inlinedAt: !DILocation(line: 4, scope: !14))
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 1, scope: !15)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 2, column: 2, scope: !15)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 3, column: 2, scope: !15, isImplicitCode: true)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 4, scope: !15, inlinedAt: !16)
MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 5, scope: !15, inlinedAt: !DILocation(line: 4, scope: !15))
$eax = COPY %0
RET64 $eax
...
|
