diff options
Diffstat (limited to 'test/CodeGenCXX/derived-cast.cpp')
-rw-r--r-- | test/CodeGenCXX/derived-cast.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/CodeGenCXX/derived-cast.cpp b/test/CodeGenCXX/derived-cast.cpp new file mode 100644 index 000000000000..bf2b258c5e9f --- /dev/null +++ b/test/CodeGenCXX/derived-cast.cpp @@ -0,0 +1,27 @@ +// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s + +class A { + int a; +}; + +class B { + int b; +public: + A *getAsA(); +}; + +class X : public A, public B { + int x; +}; + +// PR35909 - https://bugs.llvm.org/show_bug.cgi?id=35909 + +A *B::getAsA() { + return static_cast<X*>(this); + + // CHECK-LABEL: define %class.A* @_ZN1B6getAsAEv + // CHECK: %[[THIS:.*]] = load %class.B*, %class.B** + // CHECK-NEXT: %[[BC:.*]] = bitcast %class.B* %[[THIS]] to i8* + // CHECK-NEXT: getelementptr inbounds i8, i8* %[[BC]], i64 -4 +} + |