Implement throw d, where d is a class type that requires copy
construction. WIP.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89442 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGException.cpp b/lib/CodeGen/CGException.cpp
index fafdf87..e1ba045 100644
--- a/lib/CodeGen/CGException.cpp
+++ b/lib/CodeGen/CGException.cpp
@@ -88,9 +88,29 @@
const llvm::Type *Ty = ConvertType(ThrowType)->getPointerTo(0);
const CXXRecordDecl *RD;
RD = cast<CXXRecordDecl>(ThrowType->getAs<RecordType>()->getDecl());
+ llvm::Value *This = Builder.CreateBitCast(ExceptionPtr, Ty);
if (RD->hasTrivialCopyConstructor()) {
- EmitAggExpr(E->getSubExpr(), Builder.CreateBitCast(ExceptionPtr, Ty),
- false);
+ EmitAggExpr(E->getSubExpr(), This, false);
+ } else if (CXXConstructorDecl *CopyCtor
+ = RD->getCopyConstructor(getContext(), 0)) {
+ // FIXME: region management
+ llvm::Value *Src = EmitLValue(E->getSubExpr()).getAddress();
+
+ // Stolen from EmitClassAggrMemberwiseCopy
+ llvm::Value *Callee = CGM.GetAddrOfCXXConstructor(CopyCtor,
+ Ctor_Complete);
+ CallArgList CallArgs;
+ CallArgs.push_back(std::make_pair(RValue::get(This),
+ CopyCtor->getThisType(getContext())));
+
+ // Push the Src ptr.
+ CallArgs.push_back(std::make_pair(RValue::get(Src),
+ CopyCtor->getParamDecl(0)->getType()));
+ QualType ResultType =
+ CopyCtor->getType()->getAs<FunctionType>()->getResultType();
+ EmitCall(CGM.getTypes().getFunctionInfo(ResultType, CallArgs),
+ Callee, CallArgs, CopyCtor);
+ // FIXME: region management
} else
ErrorUnsupported(E, "throw expression with copy ctor");
}