clang/test/CodeGenCXX/dynamic-cast.cpp

   1 // RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -emit-llvm -fcxx-exceptions -fexceptions -o - | FileCheck %s
   2 struct A { virtual void f(); };
   3 struct B : A { };
   4
   5 // CHECK: {{define.*@_Z1fP1A}}
   6 // CHECK-SAME:  personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
   7 B fail;
   8 const B& f(A *a) {
   9   try {
  10     // CHECK: call i8* @__dynamic_cast
  11     // CHECK: br i1
  12     // CHECK: invoke void @__cxa_bad_cast() [[NR:#[0-9]+]]
  13     dynamic_cast<const B&>(*a);
  14   } catch (...) {
  15     // CHECK:      landingpad { i8*, i32 }
  16     // CHECK-NEXT:   catch i8* null
  17   }
  18   return fail;
  19 }
  20
  21 // CHECK: declare i8* @__dynamic_cast(i8*, i8*, i8*, i64) [[NUW_RO:#[0-9]+]]
  22
  23 // CHECK: attributes [[NUW_RO]] = { nounwind readonly }
  24 // CHECK: attributes [[NR]] = { noreturn }