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llvm-project/clang/test/CodeGenCXX/dynamic-cast.cpp

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When a failed dynamic_cast<T&> (which is an lvalue) results in a throw, it should use invoke when needed. The fixes the Boost.Statechrt failures that motivated PR7132, but there are a few side issues to tackle as well. llvm-svn: 103803
2010-05-15 05:14:41 +08:00
// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -fexceptions -o - | FileCheck %s
#include <typeinfo>
Fix regression I introduced when dynamic_cast-ing to a reference type. llvm-svn: 91687
2009-12-18 22:55:04 +08:00
struct A { virtual void f(); };
struct B : A { };
When a failed dynamic_cast<T&> (which is an lvalue) results in a throw, it should use invoke when needed. The fixes the Boost.Statechrt failures that motivated PR7132, but there are a few side issues to tackle as well. llvm-svn: 103803
2010-05-15 05:14:41 +08:00
// CHECK: {{define.*@_Z1fP1A}}
B fail;
Fix regression I introduced when dynamic_cast-ing to a reference type. llvm-svn: 91687
2009-12-18 22:55:04 +08:00
const B& f(A *a) {
When a failed dynamic_cast<T&> (which is an lvalue) results in a throw, it should use invoke when needed. The fixes the Boost.Statechrt failures that motivated PR7132, but there are a few side issues to tackle as well. llvm-svn: 103803
2010-05-15 05:14:41 +08:00
try {
// CHECK: call i8* @__dynamic_cast
// CHECK: br i1
// CHECK: invoke void @__cxa_bad_cast() noreturn
return dynamic_cast<const B&>(*a);
} catch (std::bad_cast&) {
// CHECK: call i8* @llvm.eh.exception
// CHECK: {{call.*llvm.eh.selector.*_ZTISt8bad_cast}}
// CHECK: {{call i32 @llvm.eh.typeid.for.*@_ZTISt8bad_cast}}
}
return fail;
Fix regression I introduced when dynamic_cast-ing to a reference type. llvm-svn: 91687
2009-12-18 22:55:04 +08:00
}