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TheRock/compiler/amd-llvm/clang/test/CodeGenCXX/dynamic-cast-exact-disabled.cpp
derek.holloway 7502bf64a4
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// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O1 -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,EXACT
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O0 -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,INEXACT
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O1 -fvisibility=hidden -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,INEXACT
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O1 -fapple-kext -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,INEXACT
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O1 -fno-assume-unique-vtables -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,INEXACT
struct A { virtual ~A(); };
struct B final : A { };
// CHECK-LABEL: @_Z5exactP1A
B *exact(A *a) {
// INEXACT: call {{.*}} @__dynamic_cast
// EXACT-NOT: call {{.*}} @__dynamic_cast
return dynamic_cast<B*>(a);
}
struct C {
virtual ~C();
};
struct D final : private C {
};
// CHECK-LABEL: @_Z5exactP1C
D *exact(C *a) {
// INEXACT: call {{.*}} @__dynamic_cast
// EXACT: entry:
// EXACT-NEXT: ret ptr null
return dynamic_cast<D*>(a);
}