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

1 files changed, 15 insertions, 3 deletions

diff --git a/clang/test/CodeGenCXX/dynamic-cast.cpp b/clang/test/CodeGenCXX/dynamic-cast.cpp
index aeb2a64157b..572b521c925 100644
--- a/clang/test/CodeGenCXX/dynamic-cast.cpp
+++ b/clang/test/CodeGenCXX/dynamic-cast.cpp
@@ -1,8 +1,20 @@
-// RUN: %clang_cc1 %s -emit-llvm-only
-
+// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -fexceptions -o - | FileCheck %s
+#include <typeinfo>
 struct A { virtual void f(); };
 struct B : A { };
 
+// CHECK: {{define.*@_Z1fP1A}}
+B fail;
 const B& f(A *a) {
-  return dynamic_cast<const B&>(*a);
+  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;
 }