a3d8b78333
According to the C++ standard, `dynamic_cast` of pointers either returns a pointer (7.6.1.7) or results in undefined behavior (11.9.5). This patch marks `__dynamic_cast` as `willreturn` to remove unused calls. Fixes #77606.
9 lines
273 B
C++
9 lines
273 B
C++
// RUN: %clang_cc1 -I%S %s -O3 -triple x86_64-apple-darwin10 -emit-llvm -fcxx-exceptions -fexceptions -std=c++11 -o - | FileCheck %s
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struct A { virtual ~A(); };
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struct B : A { };
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void foo(A* a) {
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// CHECK-NOT: call {{.*}} @__dynamic_cast
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B* b = dynamic_cast<B*>(a);
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}
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