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Previously, we used to compute this with `elementSizeInBits / 8`. This would yield an element size of 0 when the array had element size < 8 in bits. To fix this, ask data layout what the size in bytes should be. Differential Revision: https://reviews.llvm.org/D36459 llvm-svn: 310448
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.