The SCEV Validator is used to check if the bound of a loop can be translated
into a polyhedral constraint. The new validator is more general as the check
used previously and e.g. allows bounds like 'smax 1, %a'. At the moment, we
only allow signed comparisons. Also, the new validator is only used to verify
loop bounds. Memory accesses are still handled by the old validator.

llvm-svn: 143576

llvm-svn: 143004

-polly-detect-only=<functionname> allows to limit the scop detection to
a single function.

llvm-svn: 142750

llvm-svn: 141461

llvm-svn: 141458

llvm-svn: 141457

llvm-svn: 141455

llvm-svn: 138400

As we do not delete the SCoP, there is no need to remove it from the SCoP
detection.

llvm-svn: 131356

llvm-svn: 131246

  do not re-generate code for these functions.

llvm-svn: 130975

This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e
in the old git repository.

llvm-svn: 130476