Patch to force synthesis of copy assignment operator
function in the order according to c++03. ir-gen
for copy assignment in the trivial case and the first
test case.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78938 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index 0f33c7b..d1e8556 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -228,6 +228,18 @@
assert(MD->isInstance() &&
"Trying to emit a member call expr on a static method!");
+ if (MD->isCopyAssignment()) {
+ const CXXRecordDecl *ClassDecl = cast<CXXRecordDecl>(MD->getDeclContext());
+ if (ClassDecl->hasTrivialCopyAssignment()) {
+ assert(!ClassDecl->hasUserDeclaredCopyAssignment() &&
+ "EmitCXXOperatorMemberCallExpr - user declared copy assignment");
+ llvm::Value *This = EmitLValue(E->getArg(0)).getAddress();
+ llvm::Value *Src = EmitLValue(E->getArg(1)).getAddress();
+ QualType Ty = E->getType();
+ EmitAggregateCopy(This, Src, Ty);
+ return RValue::get(This);
+ }
+ }
const FunctionProtoType *FPT = MD->getType()->getAsFunctionProtoType();
const llvm::Type *Ty =