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Summary: This patch moves the getIndexExpressionsFromGEP function from polly into ScalarEvolution so that both polly and DependenceAnalysis can use it for the purpose of subscript delinearization when the array sizes are not parametric. Authored By: bmahjour Reviewer: Meinersbur, sebpop, fhahn, dmgreen, grosser, etiotto, bollu Reviewed By: Meinersbur Subscribers: hiraditya, arphaman, Whitney, ppc-slack, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D73995
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.