1; RUN: opt -O2 -S < %s | FileCheck %s 2 3; Run global DCE to eliminate unused ctor and dtor. 4; rdar://9142819 5 6; CHECK: main 7; CHECK-NOT: _ZN4BaseC1Ev 8; CHECK-NOT: _ZN4BaseD1Ev 9; CHECK-NOT: _ZN4BaseD2Ev 10; CHECK-NOT: _ZN4BaseC2Ev 11; CHECK-NOT: _ZN4BaseD0Ev 12 13%class.Base = type { ptr } 14 15@_ZTV4Base = linkonce_odr unnamed_addr constant [4 x ptr] [ptr null, ptr @_ZTI4Base, ptr @_ZN4BaseD1Ev, ptr @_ZN4BaseD0Ev] 16@_ZTVN10__cxxabiv117__class_type_infoE = external global ptr 17@_ZTS4Base = linkonce_odr constant [6 x i8] c"4Base\00" 18@_ZTI4Base = linkonce_odr unnamed_addr constant { ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv117__class_type_infoE, i64 2), ptr @_ZTS4Base } 19 20define i32 @main() uwtable ssp { 21entry: 22 %retval = alloca i32, align 4 23 %b = alloca %class.Base, align 8 24 %cleanup.dest.slot = alloca i32 25 store i32 0, ptr %retval 26 call void @_ZN4BaseC1Ev(ptr %b) 27 store i32 0, ptr %retval 28 store i32 1, ptr %cleanup.dest.slot 29 call void @_ZN4BaseD1Ev(ptr %b) 30 %0 = load i32, ptr %retval 31 ret i32 %0 32} 33 34define linkonce_odr void @_ZN4BaseC1Ev(ptr %this) unnamed_addr uwtable ssp align 2 { 35entry: 36 %this.addr = alloca ptr, align 8 37 store ptr %this, ptr %this.addr, align 8 38 %this1 = load ptr, ptr %this.addr 39 call void @_ZN4BaseC2Ev(ptr %this1) 40 ret void 41} 42 43define linkonce_odr void @_ZN4BaseD1Ev(ptr %this) unnamed_addr uwtable ssp align 2 { 44entry: 45 %this.addr = alloca ptr, align 8 46 store ptr %this, ptr %this.addr, align 8 47 %this1 = load ptr, ptr %this.addr 48 call void @_ZN4BaseD2Ev(ptr %this1) 49 ret void 50} 51 52define linkonce_odr void @_ZN4BaseD2Ev(ptr %this) unnamed_addr nounwind uwtable ssp align 2 { 53entry: 54 %this.addr = alloca ptr, align 8 55 store ptr %this, ptr %this.addr, align 8 56 %this1 = load ptr, ptr %this.addr 57 ret void 58} 59 60define linkonce_odr void @_ZN4BaseC2Ev(ptr %this) unnamed_addr nounwind uwtable ssp align 2 { 61entry: 62 %this.addr = alloca ptr, align 8 63 store ptr %this, ptr %this.addr, align 8 64 %this1 = load ptr, ptr %this.addr 65 store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV4Base, i64 0, i64 2), ptr %this1 66 ret void 67} 68 69define linkonce_odr void @_ZN4BaseD0Ev(ptr %this) unnamed_addr uwtable ssp align 2 personality ptr @__gxx_personality_v0 { 70entry: 71 %this.addr = alloca ptr, align 8 72 %exn.slot = alloca ptr 73 %ehselector.slot = alloca i32 74 store ptr %this, ptr %this.addr, align 8 75 %this1 = load ptr, ptr %this.addr 76 invoke void @_ZN4BaseD1Ev(ptr %this1) 77 to label %invoke.cont unwind label %lpad 78 79invoke.cont: ; preds = %entry 80 call void @_ZdlPv(ptr %this1) nounwind 81 ret void 82 83lpad: ; preds = %entry 84 %0 = landingpad { ptr, i32 } 85 cleanup 86 %1 = extractvalue { ptr, i32 } %0, 0 87 store ptr %1, ptr %exn.slot 88 %2 = extractvalue { ptr, i32 } %0, 1 89 store i32 %2, ptr %ehselector.slot 90 call void @_ZdlPv(ptr %this1) nounwind 91 br label %eh.resume 92 93eh.resume: ; preds = %lpad 94 %exn = load ptr, ptr %exn.slot 95 %sel = load i32, ptr %ehselector.slot 96 %lpad.val = insertvalue { ptr, i32 } undef, ptr %exn, 0 97 %lpad.val2 = insertvalue { ptr, i32 } %lpad.val, i32 %sel, 1 98 resume { ptr, i32 } %lpad.val2 99} 100 101declare i32 @__gxx_personality_v0(...) 102 103declare void @_ZdlPv(ptr) nounwind 104