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96da1ca584
Move the optimized getDefToTarget() from ForwardOpTree to ZoneAlgo such that it can be used by makeValInst. This reduces the compile time of GrTestUtils of the aosp buildbot from 2m46s to 21s, which should fix the timeout issue. Differential Revision: https://reviews.llvm.org/D48579 llvm-svn: 335606
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.