forked from OSchip/llvm-project
dd5c144246
This allows us to omit the GuardBB in front of created loops if we can show the loop trip count is at least one. It also simplifies the dominance relation inside the new created region. A GuardBB (even with a constant branch condition) might trigger false dominance errors during function verification. Differential Revision: http://reviews.llvm.org/D5297 llvm-svn: 217525 |
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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.