Tobias Grosser 5db6ffd76f LoopGenerators: Construct loops such that they are already loop rotated ... BeforeBB | v GuardBB / \ __ PreHeaderBB \ / \ / | latch HeaderBB | \ / \ / < \ / \ / ExitBB This does not only remove the need for an explicit loop rotate pass, but it also gives us the possibility to skip the construction of the guard condition in case the loop is known to be executed at least once. We do not yet exploit this, but by implementing this analysis in the isl code generator we should be able to remove more guards than the generic loop rotate pass can. Another point is that loop rotation can introduce additional PHI nodes, which may hide that a loop can be executed in parallel. This change avoids this complication and will make it easier to move the openmp code generation into a separate pass. llvm-svn: 181986		2013-05-16 06:40:06 +00:00
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polly	LoopGenerators: Construct loops such that they are already loop rotated	2013-05-16 06:40:06 +00:00
CMakeLists.txt	…