[cfe-commits] r88901 - in /cfe/trunk/lib/CodeGen: CGCXXExpr.cpp CGExpr.cpp CGExprScalar.cpp CodeGenFunction.h

[Sean Hunt]

Mike Stump wrote:
> +/// EmitCastLValue - Casts are never lvalues unless that cast is a dynamic_cast.
> +/// If the cast is a dynamic_cast, we can have the usual lvalue result,
> +/// otherwise if a cast is needed by the code generator in an lvalue context,
> +/// then it must mean that we need the address of an aggregate in order to
> +/// access one of its fields.  This can happen for all the reasons that casts
> +/// are permitted with aggregate result, including noop aggregate casts, and
> +/// cast from scalar to union.

I'll admit I'm not very familiar with this part of the code, but aren't 
casts to reference types also lvalues?

Sean