Patch: PR 5941

[Per Bothner]

Alexandre Petit-Bianco wrote:
> Tom Tromey writes:
> 
> 
>>Ok to commit?  I don't think this problem is important enough for
>>the branch, so I'd put it on the trunk only.
> 
> 
> I don't see why it shouldn't go in the trunk. Per, what do you think?

I'd leave it out of the branch.  I still think we warning for
"unreachable" increments.  In fact, I think an error is
better than no message, except for comformance testing!

I 'm not sure FORCED_REACHABLE_EXPR_P is a great name.
We're not forcing it to be reachable, since that would
means than any following statements should also be forced to be
reachable.  Instead, I'd call it something like
SUPRESS_UNREACHABLE_ERROR - and still emit a warning.
-- 
	--Per Bothner
per@bothner.com   http://www.bothner.com/per/