--disable-checking bootstrap failure

[Nathan Sidwell]

I have tracked the --disable-checking bootstrap failure to the assertification
of tree-cfg.c.  However, the bug is not a misapplied assert, or
an assert with sideeffects. It must reside elsewhere.

I attach a patch which reinserts the check with an abort, but this is
obviously papering over the problem.


I've attached a preprocessed tree-cfg.i file, with this patch applied
(line 24410).  Removing that line causes miscompilation of the file
on (at least) i686-pc-linux-gnu, with '-O2 -g'.

It's getting to the end of the day here, and I'm going to have another
learning curve figuring out where to look next.  anyone want to help?

nathan
-- 
Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
nathan@codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk

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