forked from OSchip/llvm-project
86341247c4
to Pass.h. In some compiler passes like SampleProfileLoaderPass, we want to know which LTO/ThinLTO phase the pass is in. Currently the phase is represented in enum class PassBuilder::ThinLTOPhase, so it is only available in PassBuilder and it also cannot represent phase in full LTO. The patch extends it to include full LTO phases and move it from PassBuilder.h to Pass.h, then it is much easier for PassBuilder to communiate with each pass about current LTO phase. Differential Revision: https://reviews.llvm.org/D94613 |
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| README | ||
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.