mirror of
https://github.com/intel/llvm.git
synced 2026-01-16 21:55:39 +08:00
6cd59e9076
Do not assume a load to be hoistable/invariant if the pointer is used by another instruction in the SCoP that might write to memory and that is always executed. llvm-svn: 287272
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.