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Arrays with integer base type are similar to arrays with floating point types, with the exception that LLVM's integer types can take some odd values. We add a selection of different values to make sure we correctly round these types when necessary. References to scalar integer types are special, as we currently do not model these types as array accesses as they are considered 'synthesizable' by Polly. As a result, we do not generate explicit data-transfers for them, but instead will need to keep track of all references to 'synthesizable' values separately. At the current stage, this is only visible by missing host-to-device data-transfer calls. In the future, we will also require special code generation strategies. llvm-svn: 275551
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.