forked from OSchip/llvm-project
2698390c68
PHI nodes (reads) could point to multiple instances of predecessor blocks (PHI writes) when in an invalid context. Fix by removing PHI instances that are in an invalid or ouside assumed context. This fixes llvm.org/PR41656. llvm-svn: 360454 |
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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.