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
|
; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s
; ModuleID = 'invoke.bc'
source_filename = "invoke.cpp"
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.14.0"
; Function Attrs: ssp uwtable
define void @_Z3foov() #0 personality ptr @__gxx_personality_v0 !dbg !8 {
entry:
%exn.slot = alloca ptr
%ehselector.slot = alloca i32
; CHECK: call void @_Z12bar_noexceptv({{.*}} !dbg ![[CALL1:[0-9]+]]
call void @_Z12bar_noexceptv() #4, !dbg !11
; CHECK: call void @_Z12bar_noexceptv({{.*}} !dbg ![[CALL2:[0-9]+]]
call void @_Z12bar_noexceptv() #4, !dbg !13
invoke void @_Z3barv()
; CHECK: unwind label {{.*}} !dbg ![[INVOKE:[0-9]+]]
to label %invoke.cont unwind label %lpad, !dbg !14
invoke.cont: ; preds = %entry
br label %try.cont, !dbg !15
lpad: ; preds = %entry
%0 = landingpad { ptr, i32 }
catch ptr null, !dbg !16
%1 = extractvalue { ptr, i32 } %0, 0, !dbg !16
store ptr %1, ptr %exn.slot, align 8, !dbg !16
%2 = extractvalue { ptr, i32 } %0, 1, !dbg !16
store i32 %2, ptr %ehselector.slot, align 4, !dbg !16
br label %catch, !dbg !16
catch: ; preds = %lpad
%exn = load ptr, ptr %exn.slot, align 8, !dbg !15
%3 = call ptr @__cxa_begin_catch(ptr %exn) #4, !dbg !15
invoke void @__cxa_rethrow() #5
to label %unreachable unwind label %lpad1, !dbg !17
lpad1: ; preds = %catch
%4 = landingpad { ptr, i32 }
cleanup, !dbg !19
%5 = extractvalue { ptr, i32 } %4, 0, !dbg !19
store ptr %5, ptr %exn.slot, align 8, !dbg !19
%6 = extractvalue { ptr, i32 } %4, 1, !dbg !19
store i32 %6, ptr %ehselector.slot, align 4, !dbg !19
invoke void @__cxa_end_catch()
to label %invoke.cont2 unwind label %terminate.lpad, !dbg !20
invoke.cont2: ; preds = %lpad1
br label %eh.resume, !dbg !20
try.cont: ; preds = %invoke.cont
ret void, !dbg !21
eh.resume: ; preds = %invoke.cont2
%exn3 = load ptr, ptr %exn.slot, align 8, !dbg !20
%sel = load i32, ptr %ehselector.slot, align 4, !dbg !20
%lpad.val = insertvalue { ptr, i32 } poison, ptr %exn3, 0, !dbg !20
%lpad.val4 = insertvalue { ptr, i32 } %lpad.val, i32 %sel, 1, !dbg !20
resume { ptr, i32 } %lpad.val4, !dbg !20
terminate.lpad: ; preds = %lpad1
%7 = landingpad { ptr, i32 }
catch ptr null, !dbg !20
%8 = extractvalue { ptr, i32 } %7, 0, !dbg !20
call void @__clang_call_terminate(ptr %8) #6, !dbg !20
unreachable, !dbg !20
unreachable: ; preds = %catch
unreachable
}
; Function Attrs: nounwind
declare void @_Z12bar_noexceptv() #1
declare void @_Z3barv() #2
declare i32 @__gxx_personality_v0(...)
declare ptr @__cxa_begin_catch(ptr)
declare void @__cxa_rethrow()
declare void @__cxa_end_catch()
; Function Attrs: noinline noreturn nounwind
define linkonce_odr hidden void @__clang_call_terminate(ptr) #3 {
%2 = call ptr @__cxa_begin_catch(ptr %0) #4
call void @_ZSt9terminatev() #6
unreachable
}
declare void @_ZSt9terminatev()
attributes #0 = { ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #3 = { noinline noreturn nounwind }
attributes #4 = { nounwind }
attributes #5 = { noreturn }
attributes #6 = { noreturn nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5, !6}
!llvm.ident = !{!7}
; CHECK: ![[CALL1]] = !DILocation(line: 7, column: 5, scope: ![[SCOPE1:[0-9]+]])
; CHECK: ![[SCOPE1]] = distinct !DILexicalBlock(scope: !8, file: !1, line: 6, column: 7)
; CHECK: ![[CALL2]] = !DILocation(line: 7, column: 21, scope: ![[SCOPE2:[0-9]+]])
; CHECK: ![[SCOPE2]] = !DILexicalBlockFile(scope: ![[SCOPE1]], file: !1, discriminator: 2)
; CHECK: ![[INVOKE]] = !DILocation(line: 7, column: 37, scope: ![[SCOPE3:[0-9]+]])
; CHECK: ![[SCOPE3]] = !DILexicalBlockFile(scope: ![[SCOPE1]], file: !1, discriminator: 4)
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 8.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: GNU)
!1 = !DIFile(filename: "invoke.cpp", directory: "examples")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{i32 7, !"PIC Level", i32 2}
!7 = !{!"clang version 8.0.0"}
!8 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 5, type: !9, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!9 = !DISubroutineType(types: !10)
!10 = !{null}
!11 = !DILocation(line: 7, column: 5, scope: !12)
!12 = distinct !DILexicalBlock(scope: !8, file: !1, line: 6, column: 7)
!13 = !DILocation(line: 7, column: 21, scope: !12)
!14 = !DILocation(line: 7, column: 37, scope: !12)
!15 = !DILocation(line: 8, column: 3, scope: !12)
!16 = !DILocation(line: 12, column: 1, scope: !12)
!17 = !DILocation(line: 10, column: 5, scope: !18)
!18 = distinct !DILexicalBlock(scope: !8, file: !1, line: 9, column: 15)
!19 = !DILocation(line: 12, column: 1, scope: !18)
!20 = !DILocation(line: 11, column: 3, scope: !18)
!21 = !DILocation(line: 12, column: 1, scope: !8)
|
