Has anyone seen a C validation suite?

[dave jablon]

	I plan on doing a little maintenance on our C compiler /
	optimizer and I'd like to know of any compiler validation
	tools that are out there.

	I'd just hate to break something and not know about it.

	Please respond to:
-- 
	David P. Jablon			(617) 366-6681
	Banyan Systems, Inc.
	Westboro,  MA  01581

	{ mit-eddie | allegra } !banyan!dpj