forked from OSchip/llvm-project
107cd5f5f6
Always use access-instruction pointer type to load the invariant values. Otherwise mismatches between ScopArrayInfo element type and memory access element type will result in invalid casts. These type mismatches are after r259784 a lot more common and also arise with types of different size, which have not been handled before. Interestingly, this change actually simplifies the code, as we now have only one code path that is always taken, rather then a standard code path for the common case and a "fixup" code path that replaces the standard code path in case of mismatching types. llvm-svn: 260009 |
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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.