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

25 lines
783 B
C++

// RUN: %clang_cc1 -no-opaque-pointers -I%S %s -triple x86_64-apple-darwin10 -emit-llvm -fcxx-exceptions -fexceptions -o - | FileCheck %s
struct A { virtual void f(); };
struct B : A { };
// CHECK: {{define.*@_Z1fP1A}}
// CHECK-SAME: personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
B fail;
const B& f(A *a) {
try {
// CHECK: call i8* @__dynamic_cast
// CHECK: br i1
// CHECK: invoke void @__cxa_bad_cast() [[NR:#[0-9]+]]
dynamic_cast<const B&>(*a);
} catch (...) {
// CHECK: landingpad { i8*, i32 }
// CHECK-NEXT: catch i8* null
}
return fail;
}
// CHECK: declare i8* @__dynamic_cast(i8*, i8*, i8*, i64) [[NUW_RO:#[0-9]+]]
// CHECK: attributes [[NUW_RO]] = { nounwind readonly }
// CHECK: attributes [[NR]] = { noreturn }