reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    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
; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s --check-prefix=TYPEINFONAME
; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s --check-prefix=VTABLE
; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s --check-prefix=TYPEINFO

; Test that simple vtables assemble as expected.
;
; The class hierarchy is:
;   struct A;
;   struct B : public A;
;   struct C : public A;
;   struct D : public B;
; Each with a virtual dtor and method foo.

target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"

%struct.A = type { i32 (...)** }
%struct.B = type { %struct.A }
%struct.C = type { %struct.A }
%struct.D = type { %struct.B }

@_ZTVN10__cxxabiv117__class_type_infoE = external global i8*
@_ZTVN10__cxxabiv120__si_class_type_infoE = external global i8*

; TYPEINFONAME-LABEL: _ZTS1A:
; TYPEINFONAME-NEXT: .asciz "1A"
@_ZTS1A = constant [3 x i8] c"1A\00"
; TYPEINFONAME-LABEL: _ZTS1B:
; TYPEINFONAME-NEXT: .asciz "1B"
@_ZTS1B = constant [3 x i8] c"1B\00"
; TYPEINFONAME-LABEL: _ZTS1C:
; TYPEINFONAME-NEXT: .asciz "1C"
@_ZTS1C = constant [3 x i8] c"1C\00"
; TYPEINFONAME-LABEL: _ZTS1D:
; TYPEINFONAME-NEXT: .asciz "1D"
@_ZTS1D = constant [3 x i8] c"1D\00"

; VTABLE:       .type _ZTV1A,@object
; VTABLE-NEXT:  .section .rodata._ZTV1A,
; VTABLE-NEXT:  .globl _ZTV1A
; VTABLE-LABEL: _ZTV1A:
; VTABLE-NEXT:  .int32 0
; VTABLE-NEXT:  .int32 _ZTI1A
; VTABLE-NEXT:  .int32 _ZN1AD2Ev
; VTABLE-NEXT:  .int32 _ZN1AD0Ev
; VTABLE-NEXT:  .int32 _ZN1A3fooEv
; VTABLE-NEXT:  .size _ZTV1A, 20
@_ZTV1A = constant [5 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*), i8* bitcast (%struct.A* (%struct.A*)* @_ZN1AD2Ev to i8*), i8* bitcast (void (%struct.A*)* @_ZN1AD0Ev to i8*), i8* bitcast (void (%struct.A*)* @_ZN1A3fooEv to i8*)], align 4
; VTABLE:       .type _ZTV1B,@object
; VTABLE-NEXT:  .section .rodata._ZTV1B,
; VTABLE-NEXT:  .globl _ZTV1B
; VTABLE-LABEL: _ZTV1B:
; VTABLE-NEXT:  .int32 0
; VTABLE-NEXT:  .int32 _ZTI1B
; VTABLE-NEXT:  .int32 _ZN1AD2Ev
; VTABLE-NEXT:  .int32 _ZN1BD0Ev
; VTABLE-NEXT:  .int32 _ZN1B3fooEv
; VTABLE-NEXT:  .size _ZTV1B, 20
@_ZTV1B = constant [5 x i8*] [i8* null, i8* bitcast ({ i8*, i8*, i8* }* @_ZTI1B to i8*), i8* bitcast (%struct.A* (%struct.A*)* @_ZN1AD2Ev to i8*), i8* bitcast (void (%struct.B*)* @_ZN1BD0Ev to i8*), i8* bitcast (void (%struct.B*)* @_ZN1B3fooEv to i8*)], align 4
; VTABLE:       .type _ZTV1C,@object
; VTABLE-NEXT:  .section .rodata._ZTV1C,
; VTABLE-NEXT:  .globl _ZTV1C
; VTABLE-LABEL: _ZTV1C:
; VTABLE-NEXT:  .int32 0
; VTABLE-NEXT:  .int32 _ZTI1C
; VTABLE-NEXT:  .int32 _ZN1AD2Ev
; VTABLE-NEXT:  .int32 _ZN1CD0Ev
; VTABLE-NEXT:  .int32 _ZN1C3fooEv
; VTABLE-NEXT:  .size _ZTV1C, 20
@_ZTV1C = constant [5 x i8*] [i8* null, i8* bitcast ({ i8*, i8*, i8* }* @_ZTI1C to i8*), i8* bitcast (%struct.A* (%struct.A*)* @_ZN1AD2Ev to i8*), i8* bitcast (void (%struct.C*)* @_ZN1CD0Ev to i8*), i8* bitcast (void (%struct.C*)* @_ZN1C3fooEv to i8*)], align 4
; VTABLE:       .type _ZTV1D,@object
; VTABLE-NEXT:  .section .rodata._ZTV1D,
; VTABLE-NEXT:  .globl _ZTV1D
; VTABLE-LABEL: _ZTV1D:
; VTABLE-NEXT:  .int32 0
; VTABLE-NEXT:  .int32 _ZTI1D
; VTABLE-NEXT:  .int32 _ZN1AD2Ev
; VTABLE-NEXT:  .int32 _ZN1DD0Ev
; VTABLE-NEXT:  .int32 _ZN1D3fooEv
; VTABLE-NEXT:  .size _ZTV1D, 20
@_ZTV1D = constant [5 x i8*] [i8* null, i8* bitcast ({ i8*, i8*, i8* }* @_ZTI1D to i8*), i8* bitcast (%struct.A* (%struct.A*)* @_ZN1AD2Ev to i8*), i8* bitcast (void (%struct.D*)* @_ZN1DD0Ev to i8*), i8* bitcast (void (%struct.D*)* @_ZN1D3fooEv to i8*)], align 4

; TYPEINFO:       .type _ZTI1A,@object
; TYPEINFO:       .globl _ZTI1A
; TYPEINFO-LABEL: _ZTI1A:
; TYPEINFO-NEXT:  .int32 _ZTVN10__cxxabiv117__class_type_infoE+8
; TYPEINFO-NEXT:  .int32 _ZTS1A
; TYPEINFO-NEXT:  .size _ZTI1A, 8
@_ZTI1A = constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv117__class_type_infoE, i32 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1A, i32 0, i32 0) }
; TYPEINFO:       .type _ZTI1B,@object
; TYPEINFO:       .globl _ZTI1B
; TYPEINFO-LABEL: _ZTI1B:
; TYPEINFO-NEXT:  .int32 _ZTVN10__cxxabiv120__si_class_type_infoE+8
; TYPEINFO-NEXT:  .int32 _ZTS1B
; TYPEINFO-NEXT:  .int32 _ZTI1A
; TYPEINFO-NEXT:  .size _ZTI1B, 12
@_ZTI1B = constant { i8*, i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv120__si_class_type_infoE, i32 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1B, i32 0, i32 0), i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*) }
; TYPEINFO:       .type _ZTI1C,@object
; TYPEINFO:       .globl _ZTI1C
; TYPEINFO-LABEL: _ZTI1C:
; TYPEINFO-NEXT:  .int32 _ZTVN10__cxxabiv120__si_class_type_infoE+8
; TYPEINFO-NEXT:  .int32 _ZTS1C
; TYPEINFO-NEXT:  .int32 _ZTI1A
; TYPEINFO-NEXT:  .size _ZTI1C, 12
@_ZTI1C = constant { i8*, i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv120__si_class_type_infoE, i32 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1C, i32 0, i32 0), i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*) }
; TYPEINFO:       .type _ZTI1D,@object
; TYPEINFO:       .globl _ZTI1D
; TYPEINFO-LABEL: _ZTI1D:
; TYPEINFO-NEXT:  .int32 _ZTVN10__cxxabiv120__si_class_type_infoE+8
; TYPEINFO-NEXT:  .int32 _ZTS1D
; TYPEINFO-NEXT:  .int32 _ZTI1B
; TYPEINFO-NEXT:  .size _ZTI1D, 12
@_ZTI1D = constant { i8*, i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv120__si_class_type_infoE, i32 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1D, i32 0, i32 0), i8* bitcast ({ i8*, i8*, i8* }* @_ZTI1B to i8*) }

@g = global i32 0, align 4

define void @_ZN1A3fooEv(%struct.A* %this) {
entry:
  store i32 2, i32* @g, align 4
  ret void
}

define void @_ZN1B3fooEv(%struct.B* %this) {
entry:
  store i32 4, i32* @g, align 4
  ret void
}

define void @_ZN1C3fooEv(%struct.C* %this) {
entry:
  store i32 6, i32* @g, align 4
  ret void
}

define void @_ZN1D3fooEv(%struct.D* %this) {
entry:
  store i32 8, i32* @g, align 4
  ret void
}

define linkonce_odr void @_ZN1AD0Ev(%struct.A* %this) {
entry:
  %0 = bitcast %struct.A* %this to i8*
  tail call void @_ZdlPv(i8* %0)
  ret void
}

define linkonce_odr void @_ZN1BD0Ev(%struct.B* %this) {
entry:
  %0 = bitcast %struct.B* %this to i8*
  tail call void @_ZdlPv(i8* %0)
  ret void
}

define linkonce_odr void @_ZN1CD0Ev(%struct.C* %this) {
entry:
  %0 = bitcast %struct.C* %this to i8*
  tail call void @_ZdlPv(i8* %0)
  ret void
}

define linkonce_odr %struct.A* @_ZN1AD2Ev(%struct.A* returned %this) {
entry:
  ret %struct.A* %this
}

define linkonce_odr void @_ZN1DD0Ev(%struct.D* %this) {
entry:
  %0 = bitcast %struct.D* %this to i8*
  tail call void @_ZdlPv(i8* %0)
  ret void
}

declare void @_ZdlPv(i8*)