forked from OSchip/llvm-project
8a8aca4299
After region exit simplification, the incoming block of a phi node in the SCoP region's exit block lands outside of the region. Since we treat SCoPs as if this already happened, we need to account for that when looking for outside uses of scalars (i.e. escaping scalars). llvm-svn: 309271 |
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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.