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WebAssembly doesn't require full RPO; topological sorting is sufficient and can preserve more of the MachineBlockPlacement ordering. Unfortunately, this still depends a lot on heuristics, because while we use the MachineBlockPlacement ordering as a guide, we can't use it in places where it isn't topologically ordered. This area will require further attention. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260978 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.