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author | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
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committer | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
commit | 222e2a7620e6520ffaf4fc4e69d79c18da31542e (patch) | |
tree | 7bfbc05bfa3b41c8f9d2e56d53a0bc3e310df239 /clang/test/CodeGenCXX/dynamic-cast-always-null.cpp | |
parent | 3d206f03985b50beacae843d880bccdc91a9f424 (diff) |
Add the clang library to the repo (with some of my changes, too).
Diffstat (limited to 'clang/test/CodeGenCXX/dynamic-cast-always-null.cpp')
-rw-r--r-- | clang/test/CodeGenCXX/dynamic-cast-always-null.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/dynamic-cast-always-null.cpp b/clang/test/CodeGenCXX/dynamic-cast-always-null.cpp new file mode 100644 index 0000000..2c3ea13 --- /dev/null +++ b/clang/test/CodeGenCXX/dynamic-cast-always-null.cpp @@ -0,0 +1,19 @@ +// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -emit-llvm -fcxx-exceptions -fexceptions -std=c++11 -o - | FileCheck %s +struct A { virtual ~A(); }; +struct B final : A { }; +struct C { virtual ~C(); int c; }; + +// CHECK: @_Z1fP1B +C *f(B* b) { + // CHECK-NOT: call i8* @__dynamic_cast + // CHECK: ret %struct.C* null + return dynamic_cast<C*>(b); +} + +// CHECK: @_Z1fR1B +C &f(B& b) { + // CHECK-NOT: call i8* @__dynamic_cast + // CHECK: call void @__cxa_bad_cast() noreturn + // CHECK: ret %struct.C* undef + return dynamic_cast<C&>(b); +} |