[RFC] PR c/12245 (not really C frontend issue)

[Jan Hubicka]

> On Sun, 22 Feb 2009, Jan Hubicka wrote:
> 
> > Hi,
> > the testcase of PR contains one large initializer all of constant 18.
> > This shows problem in a way we construct a constructors.  One problem
> > mentioned by Richi (and he hopefuly have patch) is that we use
> > INTEGER_CST to count the indices that makes us to build constants
> > 1.....large_number.
> 
> See http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00091.html for a
> failed attempt to fix that.  The response was that a proper
> fix is to build a (sparse) target representation of the initializer
> to which I agree, but of course this is way more work.

Yep, the flat replrezentation of initializers is one part of problem,
not needing a lot of temporary trees is other.
Can we possibly break out the HOST_WIDE_INT bits for temporary counters?

Honza