Re: [cxx-conversion] RFC - Helper types for building GIMPLE

[Marc Glisse <marc dot glisse at inria dot fr>]

On Wed, 13 Mar 2013, Diego Novillo wrote:

> This patch adds an initial implementation for a new helper type for
> generating GIMPLE statements.

I hope you'll forgive the naive newbie question: why is the gimplifier 
used so little outside of the gimplification pass? For instance, after a 
call to fold in a gimple pass, we test valid_gimple_rhs_p and give up if 
it returns false, instead of trying to gimplify whatever fold returned. 
The connection with your patch is that generic trees are easier to build 
than gimple statements, so for a long expression one could imagine 
building a tree and having a single gimplification call at the end (the 
time wasted should be quite limited).

(Note that I encourage the efforts to simplify the gimple interface, I am 
just taking the occasion to ask a vaguely related question)

--
Marc Glisse