Fixed a bug in ir-gen for copy assignment synthesis.

Fixed a bug when evaluating those copy-assignments
which need by lazily syntheized. A test case
for these.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78965 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index 24e87f521f..4460a254b7 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -1045,7 +1045,10 @@ void CodeGenFunction::SynthesizeCXXCopyAssignment(const CXXMethodDecl *CD,
     LValue RHS = EmitLValueForField(LoadOfSrc, *Field, false, 0);
     RValue RVRHS = EmitLoadOfLValue(RHS, FieldType);
     EmitStoreThroughLValue(RVRHS, LHS, FieldType);
-  }  
+  }
+  
+  // return *this;
+  Builder.CreateStore(LoadOfThis, ReturnValue);
   
   FinishFunction();
 }