1 files changed, 33 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/virtual-base-cast.cpp b/clang/test/CodeGenCXX/virtual-base-cast.cpp
new file mode 100644
index 0000000..73b7c1c
--- /dev/null
+++ b/clang/test/CodeGenCXX/virtual-base-cast.cpp
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - -triple i686-pc-linux-gnu | FileCheck %s
+
+struct A { int a; virtual int aa(); };
+struct B { int b; virtual int bb(); };
+struct C : virtual A, virtual B { int c; virtual int aa(); virtual int bb(); };
+struct AA { int a; virtual int aa(); };
+struct BB { int b; virtual int bb(); };
+struct CC : AA, BB { virtual int aa(); virtual int bb(); virtual int cc(); };
+struct D : virtual C, virtual CC { int e; };
+
+D* x;
+
+A* a() { return x; }
+// CHECK: @_Z1av() nounwind
+// CHECK: [[VBASEOFFSETPTRA:%[a-zA-Z0-9\.]+]] = getelementptr i8* {{.*}}, i64 -16
+// CHECK: [[CASTVBASEOFFSETPTRA:%[a-zA-Z0-9\.]+]] = bitcast i8* [[VBASEOFFSETPTRA]] to i32*
+// CHECK: load i32* [[CASTVBASEOFFSETPTRA]]
+// CHECK: }
+
+B* b() { return x; }
+// CHECK: @_Z1bv() nounwind
+// CHECK: [[VBASEOFFSETPTRA:%[a-zA-Z0-9\.]+]] = getelementptr i8* {{.*}}, i64 -20
+// CHECK: [[CASTVBASEOFFSETPTRA:%[a-zA-Z0-9\.]+]] = bitcast i8* [[VBASEOFFSETPTRA]] to i32*
+// CHECK: load i32* [[CASTVBASEOFFSETPTRA]]
+// CHECK: }
+
+BB* c() { return x; }
+// CHECK: @_Z1cv() nounwind
+// CHECK: [[VBASEOFFSETPTRC:%[a-zA-Z0-9\.]+]] = getelementptr i8* {{.*}}, i64 -24
+// CHECK: [[CASTVBASEOFFSETPTRC:%[a-zA-Z0-9\.]+]] = bitcast i8* [[VBASEOFFSETPTRC]] to i32*
+// CHECK: [[VBASEOFFSETC:%[a-zA-Z0-9\.]+]] = load i32* [[CASTVBASEOFFSETPTRC]]
+// CHECK: add i32 [[VBASEOFFSETC]], 8
+// CHECK: }