1 ; RUN: llc < %s | FileCheck %s 2 3 ; CHECK: .section .gfids$y 4 ; CHECK: .symidx "?address_taken@@YAXXZ" 5 ; CHECK: .symidx "?virt_method@Derived@@UEBAHXZ" 6 7 ; ModuleID = 'cfguard.cpp' 8 source_filename = "cfguard.cpp" 9 target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 10 target triple = "x86_64-pc-windows-msvc" 11 12 %struct.Derived = type { %struct.Base } 13 %struct.Base = type { i32 (...)** } 14 %rtti.CompleteObjectLocator = type { i32, i32, i32, i32, i32, i32 } 15 %rtti.TypeDescriptor13 = type { i8**, i8*, [14 x i8] } 16 %rtti.ClassHierarchyDescriptor = type { i32, i32, i32, i32 } 17 %rtti.BaseClassDescriptor = type { i32, i32, i32, i32, i32, i32, i32 } 18 %rtti.TypeDescriptor10 = type { i8**, i8*, [11 x i8] } 19 20 $"\01??0Derived@@QEAA@XZ" = comdat any 21 22 $"\01??0Base@@QEAA@XZ" = comdat any 23 24 $"\01?virt_method@Derived@@UEBAHXZ" = comdat any 25 26 $"\01??_7Derived@@6B@" = comdat largest 27 28 $"\01??_R4Derived@@6B@" = comdat any 29 30 $"\01??_R0?AUDerived@@@8" = comdat any 31 32 $"\01??_R3Derived@@8" = comdat any 33 34 $"\01??_R2Derived@@8" = comdat any 35 36 $"\01??_R1A@?0A@EA@Derived@@8" = comdat any 37 38 $"\01??_R1A@?0A@EA@Base@@8" = comdat any 39 40 $"\01??_R0?AUBase@@@8" = comdat any 41 42 $"\01??_R3Base@@8" = comdat any 43 44 $"\01??_R2Base@@8" = comdat any 45 46 $"\01??_7Base@@6B@" = comdat largest 47 48 $"\01??_R4Base@@6B@" = comdat any 49 50 @"\01?D@@3UDerived@@A" = global %struct.Derived zeroinitializer, align 8 51 @0 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4Derived@@6B@" to i8*), i8* bitcast (i32 (%struct.Derived*)* @"\01?virt_method@Derived@@UEBAHXZ" to i8*)] }, comdat($"\01??_7Derived@@6B@") 52 @"\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 53 @"\01??_7type_info@@6B@" = external constant i8* 54 @"\01??_R0?AUDerived@@@8" = linkonce_odr global %rtti.TypeDescriptor13 { i8** @"\01??_7type_info@@6B@", i8* null, [14 x i8] c".?AUDerived@@\00" }, comdat 55 @__ImageBase = external constant i8 56 @"\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 57 @"\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 58 @"\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 59 @"\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 60 @"\01??_R0?AUBase@@@8" = linkonce_odr global %rtti.TypeDescriptor10 { i8** @"\01??_7type_info@@6B@", i8* null, [11 x i8] c".?AUBase@@\00" }, comdat 61 @"\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 62 @"\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 63 @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@") 64 @"\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 65 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_cfguard.cpp, i8* null }] 66 67 @"\01??_7Derived@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @0, i32 0, i32 0, i32 1) 68 @"\01??_7Base@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @1, i32 0, i32 0, i32 1) 69 70 ; Function Attrs: noinline nounwind 71 define internal void @"\01??__ED@@YAXXZ"() #0 { 72 entry: 73 %call = call %struct.Derived* @"\01??0Derived@@QEAA@XZ"(%struct.Derived* @"\01?D@@3UDerived@@A") #2 74 ret void 75 } 76 77 ; Function Attrs: noinline nounwind optnone 78 define linkonce_odr %struct.Derived* @"\01??0Derived@@QEAA@XZ"(%struct.Derived* returned %this) unnamed_addr #1 comdat align 2 { 79 entry: 80 %this.addr = alloca %struct.Derived*, align 8 81 store %struct.Derived* %this, %struct.Derived** %this.addr, align 8 82 %this1 = load %struct.Derived*, %struct.Derived** %this.addr, align 8 83 %0 = bitcast %struct.Derived* %this1 to %struct.Base* 84 %call = call %struct.Base* @"\01??0Base@@QEAA@XZ"(%struct.Base* %0) #2 85 %1 = bitcast %struct.Derived* %this1 to i32 (...)*** 86 store i32 (...)** bitcast (i8** @"\01??_7Derived@@6B@" to i32 (...)**), i32 (...)*** %1, align 8 87 ret %struct.Derived* %this1 88 } 89 90 ; Function Attrs: noinline nounwind optnone 91 define void @"\01?address_taken@@YAXXZ"() #1 { 92 entry: 93 ret void 94 } 95 96 ; Function Attrs: noinline nounwind optnone 97 define void ()* @"\01?foo@@YAP6AXXZPEAUBase@@@Z"(%struct.Base* %B) #1 { 98 entry: 99 %retval = alloca void ()*, align 8 100 %B.addr = alloca %struct.Base*, align 8 101 store %struct.Base* %B, %struct.Base** %B.addr, align 8 102 %0 = load %struct.Base*, %struct.Base** %B.addr, align 8 103 %1 = bitcast %struct.Base* %0 to i32 (%struct.Base*)*** 104 %vtable = load i32 (%struct.Base*)**, i32 (%struct.Base*)*** %1, align 8 105 %vfn = getelementptr inbounds i32 (%struct.Base*)*, i32 (%struct.Base*)** %vtable, i64 0 106 %2 = load i32 (%struct.Base*)*, i32 (%struct.Base*)** %vfn, align 8 107 %call = call i32 %2(%struct.Base* %0) 108 %tobool = icmp ne i32 %call, 0 109 br i1 %tobool, label %if.then, label %if.end 110 111 if.then: ; preds = %entry 112 store void ()* @"\01?address_taken@@YAXXZ", void ()** %retval, align 8 113 br label %return 114 115 if.end: ; preds = %entry 116 store void ()* null, void ()** %retval, align 8 117 br label %return 118 119 return: ; preds = %if.end, %if.then 120 %3 = load void ()*, void ()** %retval, align 8 121 ret void ()* %3 122 } 123 124 ; Function Attrs: noinline nounwind optnone 125 define linkonce_odr %struct.Base* @"\01??0Base@@QEAA@XZ"(%struct.Base* returned %this) unnamed_addr #1 comdat align 2 { 126 entry: 127 %this.addr = alloca %struct.Base*, align 8 128 store %struct.Base* %this, %struct.Base** %this.addr, align 8 129 %this1 = load %struct.Base*, %struct.Base** %this.addr, align 8 130 %0 = bitcast %struct.Base* %this1 to i32 (...)*** 131 store i32 (...)** bitcast (i8** @"\01??_7Base@@6B@" to i32 (...)**), i32 (...)*** %0, align 8 132 ret %struct.Base* %this1 133 } 134 135 ; Function Attrs: noinline nounwind optnone 136 define linkonce_odr i32 @"\01?virt_method@Derived@@UEBAHXZ"(%struct.Derived* %this) unnamed_addr #1 comdat align 2 { 137 entry: 138 %this.addr = alloca %struct.Derived*, align 8 139 store %struct.Derived* %this, %struct.Derived** %this.addr, align 8 140 %this1 = load %struct.Derived*, %struct.Derived** %this.addr, align 8 141 ret i32 42 142 } 143 144 declare dllimport void @_purecall() unnamed_addr 145 146 ; Function Attrs: noinline nounwind 147 define internal void @_GLOBAL__sub_I_cfguard.cpp() #0 { 148 entry: 149 call void @"\01??__ED@@YAXXZ"() 150 ret void 151 } 152 153 attributes #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" } 154 attributes #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" } 155 attributes #2 = { nounwind } 156 157 !llvm.module.flags = !{!0, !1} 158 !llvm.ident = !{!2} 159 160 !0 = !{i32 2, !"cfguard", i32 1} 161 !1 = !{i32 1, !"wchar_size", i32 2} 162 !2 = !{!"clang version 6.0.0 "} 163
