forked from OSchip/llvm-project
021eaef044
AF = dyn_cast<SCEVAddRecExpr>(Pair.second) may be NULL for some SCEVs that we do not support. When reporting the error we still want to pass a pointer that is known to always be non-NULL. I do not yet have a test case for this, unfortunately. llvm-svn: 225461 |
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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.