forked from OSchip/llvm-project
cd2be66bf0
Do not conflict if the value of Existing and Proposed are the same. This change only affects unit tests, but no functional changes are expected on LLVM-IR, as no Known information is yet extracted and consequently this functionality is only triggered through unit tests. Differential Revision: https://reviews.llvm.org/D32025 llvm-svn: 301301 |
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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.