forked from OSchip/llvm-project
6ba927148d
If a non-affine region PHI is generated we should not move the insert point prior to the synthezised value in the same block as we might split that block at the insert point later on. Only if the incoming value should be placed in a different block we should change the insertion point. llvm-svn: 265132 |
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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.