Tobias Grosser 80e237bd53 Do not detect scops that are delinearized to arrays with "undef" size ...

Such codes are not interesting to optimize and most likely never appear in the
normal compilation flow. However, they show up during test case reduction with
bugpoint and trigger -- without this change -- an assert in
polly::MemoryAccess::foldAccess(). It is better to detect them in
ScopDetection itself and just bail out.

Contributed-by:  Utpal Bora  <cs14mtech11017@iith.ac.in>

Reviewers: grosser

Subscribers: pollydev, llvm-commits

Differential Revision: http://reviews.llvm.org/D11425

llvm-svn: 243515

2015-07-29 13:52:05 +00:00

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