forked from OSchip/llvm-project
104 lines
3.2 KiB
LLVM
104 lines
3.2 KiB
LLVM
; RUN: opt -O2 -S < %s | FileCheck %s
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; Run global DCE to eliminate unused ctor and dtor.
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; rdar://9142819
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; CHECK: main
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; CHECK-NOT: _ZN4BaseC1Ev
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; CHECK-NOT: _ZN4BaseD1Ev
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; CHECK-NOT: _ZN4BaseD2Ev
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; CHECK-NOT: _ZN4BaseC2Ev
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; CHECK-NOT: _ZN4BaseD0Ev
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%class.Base = type { ptr }
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@_ZTV4Base = linkonce_odr unnamed_addr constant [4 x ptr] [ptr null, ptr @_ZTI4Base, ptr @_ZN4BaseD1Ev, ptr @_ZN4BaseD0Ev]
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@_ZTVN10__cxxabiv117__class_type_infoE = external global ptr
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@_ZTS4Base = linkonce_odr constant [6 x i8] c"4Base\00"
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@_ZTI4Base = linkonce_odr unnamed_addr constant { ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv117__class_type_infoE, i64 2), ptr @_ZTS4Base }
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define i32 @main() uwtable ssp {
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entry:
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%retval = alloca i32, align 4
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%b = alloca %class.Base, align 8
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%cleanup.dest.slot = alloca i32
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store i32 0, ptr %retval
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call void @_ZN4BaseC1Ev(ptr %b)
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store i32 0, ptr %retval
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store i32 1, ptr %cleanup.dest.slot
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call void @_ZN4BaseD1Ev(ptr %b)
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%0 = load i32, ptr %retval
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ret i32 %0
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}
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define linkonce_odr void @_ZN4BaseC1Ev(ptr %this) unnamed_addr uwtable ssp align 2 {
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entry:
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%this.addr = alloca ptr, align 8
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store ptr %this, ptr %this.addr, align 8
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%this1 = load ptr, ptr %this.addr
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call void @_ZN4BaseC2Ev(ptr %this1)
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ret void
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}
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define linkonce_odr void @_ZN4BaseD1Ev(ptr %this) unnamed_addr uwtable ssp align 2 {
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entry:
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%this.addr = alloca ptr, align 8
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store ptr %this, ptr %this.addr, align 8
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%this1 = load ptr, ptr %this.addr
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call void @_ZN4BaseD2Ev(ptr %this1)
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ret void
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}
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define linkonce_odr void @_ZN4BaseD2Ev(ptr %this) unnamed_addr nounwind uwtable ssp align 2 {
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entry:
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%this.addr = alloca ptr, align 8
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store ptr %this, ptr %this.addr, align 8
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%this1 = load ptr, ptr %this.addr
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ret void
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}
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define linkonce_odr void @_ZN4BaseC2Ev(ptr %this) unnamed_addr nounwind uwtable ssp align 2 {
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entry:
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%this.addr = alloca ptr, align 8
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store ptr %this, ptr %this.addr, align 8
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%this1 = load ptr, ptr %this.addr
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store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV4Base, i64 0, i64 2), ptr %this1
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ret void
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}
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define linkonce_odr void @_ZN4BaseD0Ev(ptr %this) unnamed_addr uwtable ssp align 2 personality ptr @__gxx_personality_v0 {
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entry:
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%this.addr = alloca ptr, align 8
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%exn.slot = alloca ptr
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%ehselector.slot = alloca i32
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store ptr %this, ptr %this.addr, align 8
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%this1 = load ptr, ptr %this.addr
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invoke void @_ZN4BaseD1Ev(ptr %this1)
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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call void @_ZdlPv(ptr %this1) nounwind
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ret void
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lpad: ; preds = %entry
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%0 = landingpad { ptr, i32 }
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cleanup
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%1 = extractvalue { ptr, i32 } %0, 0
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store ptr %1, ptr %exn.slot
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%2 = extractvalue { ptr, i32 } %0, 1
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store i32 %2, ptr %ehselector.slot
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call void @_ZdlPv(ptr %this1) nounwind
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br label %eh.resume
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eh.resume: ; preds = %lpad
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%exn = load ptr, ptr %exn.slot
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%sel = load i32, ptr %ehselector.slot
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%lpad.val = insertvalue { ptr, i32 } undef, ptr %exn, 0
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%lpad.val2 = insertvalue { ptr, i32 } %lpad.val, i32 %sel, 1
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resume { ptr, i32 } %lpad.val2
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}
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declare i32 @__gxx_personality_v0(...)
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declare void @_ZdlPv(ptr) nounwind
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