forked from OSchip/llvm-project
8da2b93d9f
This patch changes the RegionSet type used in ScopDetection from a std::set to a llvm::SetVector. The reason for the change is to ensure deterministic output when printing the result of the analysis. We had a windows buildbot failure for the modified test because the output was coming in a different order. Only one test case needed to be modified for this change. We could use CHECK-DAG directives instead of CHECK in the analysis test cases because the actual order of scops does not matter, but I think that change should be done in a separate patch that modifies all the appliciable tests. I simply modified the test to reflect the expected deterministic output. Differential Revision: http://reviews.llvm.org/D5897 llvm-svn: 220423 |
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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.