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| ; RUN: opt -O2 -S < %s | FileCheck %s
; Run global DCE to eliminate unused ctor and dtor.
; rdar://9142819
; CHECK: main
; CHECK-NOT: _ZN4BaseC1Ev
; CHECK-NOT: _ZN4BaseD1Ev
; CHECK-NOT: _ZN4BaseD2Ev
; CHECK-NOT: _ZN4BaseC2Ev
; CHECK-NOT: _ZN4BaseD0Ev
%class.Base = type { i32 (...)** }
@_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*)]
@_ZTVN10__cxxabiv117__class_type_infoE = external global i8*
@_ZTS4Base = linkonce_odr constant [6 x i8] c"4Base\00"
@_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) }
define i32 @main() uwtable ssp {
entry:
%retval = alloca i32, align 4
%b = alloca %class.Base, align 8
%cleanup.dest.slot = alloca i32
store i32 0, i32* %retval
call void @_ZN4BaseC1Ev(%class.Base* %b)
store i32 0, i32* %retval
store i32 1, i32* %cleanup.dest.slot
call void @_ZN4BaseD1Ev(%class.Base* %b)
%0 = load i32, i32* %retval
ret i32 %0
}
define linkonce_odr void @_ZN4BaseC1Ev(%class.Base* %this) unnamed_addr uwtable ssp align 2 {
entry:
%this.addr = alloca %class.Base*, align 8
store %class.Base* %this, %class.Base** %this.addr, align 8
%this1 = load %class.Base*, %class.Base** %this.addr
call void @_ZN4BaseC2Ev(%class.Base* %this1)
ret void
}
define linkonce_odr void @_ZN4BaseD1Ev(%class.Base* %this) unnamed_addr uwtable ssp align 2 {
entry:
%this.addr = alloca %class.Base*, align 8
store %class.Base* %this, %class.Base** %this.addr, align 8
%this1 = load %class.Base*, %class.Base** %this.addr
call void @_ZN4BaseD2Ev(%class.Base* %this1)
ret void
}
define linkonce_odr void @_ZN4BaseD2Ev(%class.Base* %this) unnamed_addr nounwind uwtable ssp align 2 {
entry:
%this.addr = alloca %class.Base*, align 8
store %class.Base* %this, %class.Base** %this.addr, align 8
%this1 = load %class.Base*, %class.Base** %this.addr
ret void
}
define linkonce_odr void @_ZN4BaseC2Ev(%class.Base* %this) unnamed_addr nounwind uwtable ssp align 2 {
entry:
%this.addr = alloca %class.Base*, align 8
store %class.Base* %this, %class.Base** %this.addr, align 8
%this1 = load %class.Base*, %class.Base** %this.addr
%0 = bitcast %class.Base* %this1 to i8***
store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV4Base, i64 0, i64 2), i8*** %0
ret void
}
define linkonce_odr void @_ZN4BaseD0Ev(%class.Base* %this) unnamed_addr uwtable ssp align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
%this.addr = alloca %class.Base*, align 8
%exn.slot = alloca i8*
%ehselector.slot = alloca i32
store %class.Base* %this, %class.Base** %this.addr, align 8
%this1 = load %class.Base*, %class.Base** %this.addr
invoke void @_ZN4BaseD1Ev(%class.Base* %this1)
to label %invoke.cont unwind label %lpad
invoke.cont: ; preds = %entry
%0 = bitcast %class.Base* %this1 to i8*
call void @_ZdlPv(i8* %0) nounwind
ret void
lpad: ; preds = %entry
%1 = landingpad { i8*, i32 }
cleanup
%2 = extractvalue { i8*, i32 } %1, 0
store i8* %2, i8** %exn.slot
%3 = extractvalue { i8*, i32 } %1, 1
store i32 %3, i32* %ehselector.slot
%4 = bitcast %class.Base* %this1 to i8*
call void @_ZdlPv(i8* %4) nounwind
br label %eh.resume
eh.resume: ; preds = %lpad
%exn = load i8*, i8** %exn.slot
%sel = load i32, i32* %ehselector.slot
%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0
%lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1
resume { i8*, i32 } %lpad.val2
}
declare i32 @__gxx_personality_v0(...)
declare void @_ZdlPv(i8*) nounwind
|