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
187
188
189
190
191
192
193
194
195
196
197
198
199
| ; RUN: llc -verify-machineinstrs -mtriple=i686-pc-windows-msvc < %s | FileCheck --check-prefix=X86 %s
; RUN: llc -verify-machineinstrs -mtriple=x86_64-pc-windows-msvc < %s | FileCheck --check-prefix=X64 %s
%struct.Dtor = type { i8 }
define void @simple_cleanup() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
entry:
%o = alloca %struct.Dtor, align 1
invoke void @f(i32 1)
to label %invoke.cont unwind label %ehcleanup
invoke.cont: ; preds = %entry
call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o) #2
ret void
ehcleanup: ; preds = %entry
%0 = cleanuppad within none []
call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o) #2 [ "funclet"(token %0) ]
cleanupret from %0 unwind to caller
}
; CHECK: simple_cleanup: # @simple_cleanup
; CHECK: pushq %rbp
; CHECK: subq $48, %rsp
; CHECK: leaq 48(%rsp), %rbp
; CHECK: movq $-2, -8(%rbp)
; CHECK: movl $1, %ecx
; CHECK: callq f
; CHECK: callq "??1Dtor@@QAE@XZ"
; CHECK: nop
; CHECK: addq $48, %rsp
; CHECK: popq %rbp
; CHECK: retq
; CHECK: "?dtor$2@?0?simple_cleanup@4HA":
; CHECK: callq "??1Dtor@@QAE@XZ"
; CHECK: retq
; CHECK: $cppxdata$simple_cleanup:
; CHECK-NEXT: .long 429065506
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long ($stateUnwindMap$simple_cleanup)@IMGREL
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long ($ip2state$simple_cleanup)@IMGREL
; UnwindHelp offset should match the -2 store above
; CHECK-NEXT: .long 40
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 1
declare void @f(i32) #0
declare i32 @__CxxFrameHandler3(...)
; Function Attrs: nounwind
declare x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor*) #1
define void @nested_cleanup() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
entry:
%o1 = alloca %struct.Dtor, align 1
%o2 = alloca %struct.Dtor, align 1
invoke void @f(i32 1)
to label %invoke.cont unwind label %cleanup.outer
invoke.cont: ; preds = %entry
invoke void @f(i32 2)
to label %invoke.cont.1 unwind label %cleanup.inner
invoke.cont.1: ; preds = %invoke.cont
call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o2) #2
invoke void @f(i32 3)
to label %invoke.cont.2 unwind label %cleanup.outer
invoke.cont.2: ; preds = %invoke.cont.1
call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o1) #2
ret void
cleanup.inner: ; preds = %invoke.cont
%0 = cleanuppad within none []
call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o2) #2 [ "funclet"(token %0) ]
cleanupret from %0 unwind label %cleanup.outer
cleanup.outer: ; preds = %invoke.cont.1, %cleanup.inner, %entry
%1 = cleanuppad within none []
call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o1) #2 [ "funclet"(token %1) ]
cleanupret from %1 unwind to caller
}
; X86-LABEL: _nested_cleanup:
; X86: pushl $1
; X86: calll _f
; X86: pushl $2
; X86: calll _f
; X86: pushl $3
; X86: calll _f
; X86: "?dtor$[[cleanup_inner:[0-9]+]]@?0?nested_cleanup@4HA":
; X86: LBB1_[[cleanup_inner]]: # %cleanup.inner{{$}}
; X86: pushl %ebp
; X86: leal {{.*}}(%ebp), %ecx
; X86: calll "??1Dtor@@QAE@XZ"
; X86: popl %ebp
; X86: retl
; X86: "?dtor$[[cleanup_outer:[0-9]+]]@?0?nested_cleanup@4HA":
; X86: LBB1_[[cleanup_outer]]: # %cleanup.outer{{$}}
; X86: pushl %ebp
; X86: leal {{.*}}(%ebp), %ecx
; X86: calll "??1Dtor@@QAE@XZ"
; X86: popl %ebp
; X86: retl
; X86: L__ehtable$nested_cleanup:
; X86: .long 429065506
; X86: .long 2
; X86: .long ($stateUnwindMap$nested_cleanup)
; X86: .long 0
; X86: .long 0
; X86: .long 0
; X86: .long 0
; X86: .long 0
; X86: .long 1
; X86: $stateUnwindMap$nested_cleanup:
; X86: .long -1
; X86: .long "?dtor$[[cleanup_outer]]@?0?nested_cleanup@4HA"
; X86: .long 0
; X86: .long "?dtor$[[cleanup_inner]]@?0?nested_cleanup@4HA"
; X64-LABEL: nested_cleanup:
; X64: .Lfunc_begin1:
; X64: .Ltmp2:
; X64: movl $1, %ecx
; X64: callq f
; X64: .Ltmp4:
; X64: movl $2, %ecx
; X64: callq f
; X64: .Ltmp5:
; X64: callq "??1Dtor@@QAE@XZ"
; X64: .Ltmp6:
; X64: movl $3, %ecx
; X64: callq f
; X64: .Ltmp7:
; X64: "?dtor$[[cleanup_inner:[0-9]+]]@?0?nested_cleanup@4HA":
; X64: LBB1_[[cleanup_inner]]: # %cleanup.inner{{$}}
; X64: pushq %rbp
; X64: leaq {{.*}}(%rbp), %rcx
; X64: callq "??1Dtor@@QAE@XZ"
; X64: popq %rbp
; X64: retq
; X64: .seh_handlerdata
; X64: .text
; X64: .seh_endproc
; X64: "?dtor$[[cleanup_outer:[0-9]+]]@?0?nested_cleanup@4HA":
; X64: LBB1_[[cleanup_outer]]: # %cleanup.outer{{$}}
; X64: pushq %rbp
; X64: leaq {{.*}}(%rbp), %rcx
; X64: callq "??1Dtor@@QAE@XZ"
; X64: popq %rbp
; X64: retq
; X64: .section .xdata,"dr"
; X64-NEXT: .p2align 2
; X64: $cppxdata$nested_cleanup:
; X64-NEXT: .long 429065506
; X64-NEXT: .long 2
; X64-NEXT: .long ($stateUnwindMap$nested_cleanup)@IMGREL
; X64-NEXT: .long 0
; X64-NEXT: .long 0
; X64-NEXT: .long 5
; X64-NEXT: .long ($ip2state$nested_cleanup)@IMGREL
; X64-NEXT: .long 56
; X64-NEXT: .long 0
; X64-NEXT: .long 1
; X64: $stateUnwindMap$nested_cleanup:
; X64-NEXT: .long -1
; X64-NEXT: .long "?dtor$[[cleanup_outer]]@?0?nested_cleanup@4HA"@IMGREL
; X64-NEXT: .long 0
; X64-NEXT: .long "?dtor$[[cleanup_inner]]@?0?nested_cleanup@4HA"@IMGREL
; X64: $ip2state$nested_cleanup:
; X64-NEXT: .long .Lfunc_begin1@IMGREL
; X64-NEXT: .long -1
; X64-NEXT: .long .Ltmp2@IMGREL
; X64-NEXT: .long 0
; X64-NEXT: .long .Ltmp4@IMGREL
; X64-NEXT: .long 1
; X64-NEXT: .long .Ltmp6@IMGREL
; X64-NEXT: .long 0
; X64-NEXT: .long .Ltmp7@IMGREL+1
; X64-NEXT: .long -1
attributes #0 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind }
|