forked from OSchip/llvm-project
2ea6deb62f
For for-nodes that are translated to a set of vector lanes, we already know the overall number of iterations. Calculating the upper bound is consequently not necessary. This change removes the code for upper bound calculation, which was probably copy/pasted from the code generation for the normal for-loop. This issue was found by Sylvestre's scan-build server. llvm-svn: 193925 |
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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.