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cfa0361d35
We do not have them in Polly and the code to check for them is directly referring to pet data structures which we do not have available. This commit avoids undefined behavior. As such issues are difficult to reproduce, this commit comes without a test case. llvm-svn: 275553
Polly - Polyhedral optimizations for LLVM ----------------------------------------- http://polly.llvm.org/ Polly uses a mathematical representation, the polyhedral model, to represent and transform loops and other control flow structures. Using an abstract representation it is possible to reason about transformations in a more general way and to use highly optimized linear programming libraries to figure out the optimal loop structure. These transformations can be used to do constant propagation through arrays, remove dead loop iterations, optimize loops for cache locality, optimize arrays, apply advanced automatic parallelization, drive vectorization, or they can be used to do software pipelining.