Abstract out parts of thunk emission code, add support for simple thunks when using -cxx-abi microsoft

Reviewed at http://llvm-reviews.chandlerc.com/D1787

llvm-svn: 192220

1 files changed, 19 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/microsoft-abi-vtables-multiple-nonvirtual-inheritance.cpp b/clang/test/CodeGenCXX/microsoft-abi-vtables-multiple-nonvirtual-inheritance.cpp
index a0436c8e810..8dad4dd7794 100644
--- a/clang/test/CodeGenCXX/microsoft-abi-vtables-multiple-nonvirtual-inheritance.cpp
+++ b/clang/test/CodeGenCXX/microsoft-abi-vtables-multiple-nonvirtual-inheritance.cpp
@@ -18,6 +18,7 @@
 // RUN: FileCheck --check-prefix=RET-THUNKS-Test3 %s < %t
 // RUN: FileCheck --check-prefix=RET-THUNKS-Test4 %s < %t
 // RUN: FileCheck --check-prefix=RET-THUNKS-Test5 %s < %t
+// RUN: FileCheck --check-prefix=RET-THUNKS-Test6 %s < %t
 
 // RUN: FileCheck --check-prefix=MANGLING %s < %t
 
@@ -458,4 +459,22 @@ struct Test5 : Ret1, Test1 {
 };
 
 Test5 t5;
+
+struct Ret3 : this_adjustment::Test1 { };
+
+struct Test6 : Test1 {
+  virtual Ret3* foo();
+  // RET-THUNKS-Test6: VFTable for 'return_adjustment::Ret1' in 'return_adjustment::Test1' in 'return_adjustment::Test6' (4 entries).
+  // RET-THUNKS-Test6-NEXT: 0 | return_adjustment::Ret3 *return_adjustment::Test6::foo()
+  // RET-THUNKS-Test6-NEXT:     [return adjustment: 4 non-virtual]
+  // RET-THUNKS-Test6-NEXT: 1 | void return_adjustment::Ret1::z()
+  // RET-THUNKS-Test6-NEXT: 2 | return_adjustment::Ret3 *return_adjustment::Test6::foo()
+  // RET-THUNKS-Test6-NEXT: 3 | return_adjustment::Ret3 *return_adjustment::Test6::foo()
+
+  // RET-THUNKS-Test6: VFTable indices for 'return_adjustment::Test6' (1 entries).
+  // RET-THUNKS-Test6-NEXT: 3 | return_adjustment::Ret3 *return_adjustment::Test6::foo()
+};
+
+Test6 t6;
+
 }