1; RUN: llc < %s | FileCheck %s
2
3; CHECK: .set @feat.00, 2048
4
5; CHECK: .section .gfids$y
6; CHECK: .symidx "?address_taken@@YAXXZ"
7; CHECK: .symidx "?virt_method@Derived@@UEBAHXZ"
8
9; ModuleID = 'cfguard.cpp'
10source_filename = "cfguard.cpp"
11target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
12target triple = "x86_64-pc-windows-msvc"
13
14%struct.Derived = type { %struct.Base }
15%struct.Base = type { i32 (...)** }
16%rtti.CompleteObjectLocator = type { i32, i32, i32, i32, i32, i32 }
17%rtti.TypeDescriptor13 = type { i8**, i8*, [14 x i8] }
18%rtti.ClassHierarchyDescriptor = type { i32, i32, i32, i32 }
19%rtti.BaseClassDescriptor = type { i32, i32, i32, i32, i32, i32, i32 }
20%rtti.TypeDescriptor10 = type { i8**, i8*, [11 x i8] }
21
22$"\01??0Derived@@QEAA@XZ" = comdat any
23
24$"\01??0Base@@QEAA@XZ" = comdat any
25
26$"\01?virt_method@Derived@@UEBAHXZ" = comdat any
27
28$"\01??_7Derived@@6B@" = comdat largest
29
30$"\01??_R4Derived@@6B@" = comdat any
31
32$"\01??_R0?AUDerived@@@8" = comdat any
33
34$"\01??_R3Derived@@8" = comdat any
35
36$"\01??_R2Derived@@8" = comdat any
37
38$"\01??_R1A@?0A@EA@Derived@@8" = comdat any
39
40$"\01??_R1A@?0A@EA@Base@@8" = comdat any
41
42$"\01??_R0?AUBase@@@8" = comdat any
43
44$"\01??_R3Base@@8" = comdat any
45
46$"\01??_R2Base@@8" = comdat any
47
48$"\01??_7Base@@6B@" = comdat largest
49
50$"\01??_R4Base@@6B@" = comdat any
51
52@"\01?D@@3UDerived@@A" = global %struct.Derived zeroinitializer, align 8
53@0 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4Derived@@6B@" to i8*), i8* bitcast (i32 (%struct.Derived*)* @"\01?virt_method@Derived@@UEBAHXZ" to i8*)] }, comdat($"\01??_7Derived@@6B@")
54@"\01??_R4Derived@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor13* @"\01??_R0?AUDerived@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3Derived@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4Derived@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
55@"\01??_7type_info@@6B@" = external constant i8*
56@"\01??_R0?AUDerived@@@8" = linkonce_odr global %rtti.TypeDescriptor13 { i8** @"\01??_7type_info@@6B@", i8* null, [14 x i8] c".?AUDerived@@\00" }, comdat
57@__ImageBase = external constant i8
58@"\01??_R3Derived@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 2, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([3 x i32]* @"\01??_R2Derived@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
59@"\01??_R2Derived@@8" = linkonce_odr constant [3 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@Derived@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@Base@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat
60@"\01??_R1A@?0A@EA@Derived@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor13* @"\01??_R0?AUDerived@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 1, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3Derived@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
61@"\01??_R1A@?0A@EA@Base@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor10* @"\01??_R0?AUBase@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3Base@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
62@"\01??_R0?AUBase@@@8" = linkonce_odr global %rtti.TypeDescriptor10 { i8** @"\01??_7type_info@@6B@", i8* null, [11 x i8] c".?AUBase@@\00" }, comdat
63@"\01??_R3Base@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([2 x i32]* @"\01??_R2Base@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
64@"\01??_R2Base@@8" = linkonce_odr constant [2 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@Base@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat
65@1 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4Base@@6B@" to i8*), i8* bitcast (void ()* @_purecall to i8*)] }, comdat($"\01??_7Base@@6B@")
66@"\01??_R4Base@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor10* @"\01??_R0?AUBase@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3Base@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4Base@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
67@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_cfguard.cpp, i8* null }]
68
69@"\01??_7Derived@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @0, i32 0, i32 0, i32 1)
70@"\01??_7Base@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @1, i32 0, i32 0, i32 1)
71
72; Function Attrs: noinline nounwind
73define internal void @"\01??__ED@@YAXXZ"() #0 {
74entry:
75  %call = call %struct.Derived* @"\01??0Derived@@QEAA@XZ"(%struct.Derived* @"\01?D@@3UDerived@@A") #2
76  ret void
77}
78
79; Function Attrs: noinline nounwind optnone
80define linkonce_odr %struct.Derived* @"\01??0Derived@@QEAA@XZ"(%struct.Derived* returned %this) unnamed_addr #1 comdat align 2 {
81entry:
82  %this.addr = alloca %struct.Derived*, align 8
83  store %struct.Derived* %this, %struct.Derived** %this.addr, align 8
84  %this1 = load %struct.Derived*, %struct.Derived** %this.addr, align 8
85  %0 = bitcast %struct.Derived* %this1 to %struct.Base*
86  %call = call %struct.Base* @"\01??0Base@@QEAA@XZ"(%struct.Base* %0) #2
87  %1 = bitcast %struct.Derived* %this1 to i32 (...)***
88  store i32 (...)** bitcast (i8** @"\01??_7Derived@@6B@" to i32 (...)**), i32 (...)*** %1, align 8
89  ret %struct.Derived* %this1
90}
91
92; Function Attrs: noinline nounwind optnone
93define void @"\01?address_taken@@YAXXZ"() #1 {
94entry:
95  ret void
96}
97
98; Function Attrs: noinline nounwind optnone
99define void ()* @"\01?foo@@YAP6AXXZPEAUBase@@@Z"(%struct.Base* %B) #1 {
100entry:
101  %retval = alloca void ()*, align 8
102  %B.addr = alloca %struct.Base*, align 8
103  store %struct.Base* %B, %struct.Base** %B.addr, align 8
104  %0 = load %struct.Base*, %struct.Base** %B.addr, align 8
105  %1 = bitcast %struct.Base* %0 to i32 (%struct.Base*)***
106  %vtable = load i32 (%struct.Base*)**, i32 (%struct.Base*)*** %1, align 8
107  %vfn = getelementptr inbounds i32 (%struct.Base*)*, i32 (%struct.Base*)** %vtable, i64 0
108  %2 = load i32 (%struct.Base*)*, i32 (%struct.Base*)** %vfn, align 8
109  %call = call i32 %2(%struct.Base* %0)
110  %tobool = icmp ne i32 %call, 0
111  br i1 %tobool, label %if.then, label %if.end
112
113if.then:                                          ; preds = %entry
114  store void ()* @"\01?address_taken@@YAXXZ", void ()** %retval, align 8
115  br label %return
116
117if.end:                                           ; preds = %entry
118  store void ()* null, void ()** %retval, align 8
119  br label %return
120
121return:                                           ; preds = %if.end, %if.then
122  %3 = load void ()*, void ()** %retval, align 8
123  ret void ()* %3
124}
125
126; Function Attrs: noinline nounwind optnone
127define linkonce_odr %struct.Base* @"\01??0Base@@QEAA@XZ"(%struct.Base* returned %this) unnamed_addr #1 comdat align 2 {
128entry:
129  %this.addr = alloca %struct.Base*, align 8
130  store %struct.Base* %this, %struct.Base** %this.addr, align 8
131  %this1 = load %struct.Base*, %struct.Base** %this.addr, align 8
132  %0 = bitcast %struct.Base* %this1 to i32 (...)***
133  store i32 (...)** bitcast (i8** @"\01??_7Base@@6B@" to i32 (...)**), i32 (...)*** %0, align 8
134  ret %struct.Base* %this1
135}
136
137; Function Attrs: noinline nounwind optnone
138define linkonce_odr i32 @"\01?virt_method@Derived@@UEBAHXZ"(%struct.Derived* %this) unnamed_addr #1 comdat align 2 {
139entry:
140  %this.addr = alloca %struct.Derived*, align 8
141  store %struct.Derived* %this, %struct.Derived** %this.addr, align 8
142  %this1 = load %struct.Derived*, %struct.Derived** %this.addr, align 8
143  ret i32 42
144}
145
146declare dllimport void @_purecall() unnamed_addr
147
148; Function Attrs: noinline nounwind
149define internal void @_GLOBAL__sub_I_cfguard.cpp() #0 {
150entry:
151  call void @"\01??__ED@@YAXXZ"()
152  ret void
153}
154
155attributes #0 = { noinline nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
156attributes #1 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
157attributes #2 = { nounwind }
158
159!llvm.module.flags = !{!0, !1}
160!llvm.ident = !{!2}
161
162!0 = !{i32 2, !"cfguardtable", i32 1}
163!1 = !{i32 1, !"wchar_size", i32 2}
164!2 = !{!"clang version 6.0.0 "}
165