77bd5ae3d9
This fixes two problems which are usualy caused together:
1) The elements of an isl AST access expression could be pointers
not only integers, floats and vectores thereof.
2) The runtime alias checks need to compare pointers but if they
are of a different type we need to cast them into a "max" type
similar to the non pointer case.
llvm-svn: 218113
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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.