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0f33c54854
To fix long compile time issue of Schedule optimizer, patch #77280 sets the upper cap on max ISL operations. In case of bailing out when ISL quota is hit, error handling behavior was restored manually. This commit replaces the restoration code with IslMaxOperationsGuard helper and also removes redundant early return.
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.