C++ PATCH: use identifier_p instead of naked TREE_CODE == IDENTIFIER_NODE
Fri Mar 22 09:31:00 GMT 2013
On Fri, Mar 22, 2013 at 10:21:05AM +0100, Richard Biener wrote:
> On Fri, Mar 22, 2013 at 4:50 AM, Gabriel Dos Reis <firstname.lastname@example.org> wrote:
> > This patch introduces identified_p (t) in lieu of
> > TREE_CODE (t) == IDENTIFIER_NODE
> Generally we have macros like IDENTIFIER_P for this kind of checks.
> > in the C++ front-end. identifier_p is effectively LANG_IDENTIFIER_CAST
> > except that it returns a typed pointer instead of a boolean value.
> Hm? So you are replacing TREE_CODE (t) == IDENTIFIER_NODE
> with kind-of dynamic_cast<identifier> (t) (in C++ terms)? Then
> naming it identifier_p is bad. We have is-a.h now, so please try to use
> a single style of C++-style casting throughout GCC.
Anyway, if you see better code generated with your change compared to the
old style, I'd say you should file a PR with some preferrably short
preprocessed routine where it makes a difference, because that would show
that either VRP or other optimization pass just isn't doing good job.
It is better code for --enable-checking=yes anyway, right?
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