c75c136169
Update the codegen for the the dynamic_cast to a final class optimization when pointer authentication is enabled.
32 lines
1.2 KiB
C++
32 lines
1.2 KiB
C++
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O1 -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,EXACT
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// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -O0 -emit-llvm -std=c++11 -o - | FileCheck %s --check-prefixes=CHECK,INEXACT
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// 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
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// 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
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// 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
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struct A { virtual ~A(); };
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struct B final : A { };
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// CHECK-LABEL: @_Z5exactP1A
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B *exact(A *a) {
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// INEXACT: call {{.*}} @__dynamic_cast
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// EXACT-NOT: call {{.*}} @__dynamic_cast
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return dynamic_cast<B*>(a);
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}
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struct C {
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virtual ~C();
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};
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struct D final : private C {
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};
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// CHECK-LABEL: @_Z5exactP1C
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D *exact(C *a) {
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// INEXACT: call {{.*}} @__dynamic_cast
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// EXACT: entry:
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// EXACT-NEXT: ret ptr null
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return dynamic_cast<D*>(a);
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}
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