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Diffstat (limited to 'test/CodeGenCXX/microsoft-inaccessible-base.cpp')
| -rw-r--r-- | test/CodeGenCXX/microsoft-inaccessible-base.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGenCXX/microsoft-inaccessible-base.cpp b/test/CodeGenCXX/microsoft-inaccessible-base.cpp new file mode 100644 index 000000000000..2c0d124eb01e --- /dev/null +++ b/test/CodeGenCXX/microsoft-inaccessible-base.cpp @@ -0,0 +1,20 @@ +// RUN: %clang_cc1 -fms-compatibility -triple x86_64-windows-msvc %s -emit-llvm -o - | FileCheck %s + +// Make sure we choose the *direct* base path when doing these conversions. + +// CHECK: %struct.C = type { %struct.A, %struct.B } +// CHECK: %struct.D = type { %struct.B, %struct.A } + +struct A { int a; }; +struct B : A { int b; }; + +struct C : A, B { }; +extern "C" A *a_from_c(C *p) { return p; } +// CHECK-LABEL: define %struct.A* @a_from_c(%struct.C* %{{.*}}) +// CHECK: bitcast %struct.C* %{{.*}} to %struct.A* + +struct D : B, A { }; +extern "C" A *a_from_d(D *p) { return p; } +// CHECK-LABEL: define %struct.A* @a_from_d(%struct.D* %{{.*}}) +// CHECK: %[[p_i8:[^ ]*]] = bitcast %struct.D* %{{.*}} to i8* +// CHECK: getelementptr inbounds i8, i8* %[[p_i8]], i64 8 |