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