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The patch #102460 already implements separate DT/LI/SE for parallel sub function. Crashes have been reported while region generator tries using oringinal function's DT while creating new parallel sub function due to checks in #101198. This patch aims at fixing those cases by switching the DT/LI while generating parallel function using Region Generator. Fixes #117877
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.