forked from OSchip/llvm-project
50165ffdee
Remainder operations with constant divisor can be modeled as quasi-affine expression. This patch adds support for detecting and modeling them. We also add a test that ensures they are correctly code generated. This patch was extracted from a larger patch contributed by Johannes Doerfert in http://reviews.llvm.org/D5293 llvm-svn: 240518 |
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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.