eeab05a084
We use a parametric abstraction of the domain to split alias groups if accesses cannot be executed under the same parameter evaluation. The two test cases check that we can remove alias groups if the pointers which might alias are never accessed under the same parameter evaluation and that the minimal/maximal accesses are not global but with regards to the parameter evaluation. Differential Revision: http://reviews.llvm.org/D5436 llvm-svn: 218758 |
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README
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.