BUG: Check for blocks with no fallthrough in the lock-step-execution pass.

git-svn-id: http://gpuocelot.googlecode.com/svn/trunk@2222 ec522b64-56cd-11de-8d7d-01d876f1962d
BUG: Pass requires correct types on setp instructions..

git-svn-id: http://gpuocelot.googlecode.com/svn/trunk@2223 ec522b64-56cd-11de-8d7d-01d876f1962d
BUG: PTXOptimizer changes the PTX version.

git-svn-id: http://gpuocelot.googlecode.com/svn/trunk@2224 ec522b64-56cd-11de-8d7d-01d876f1962d