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The loop-deletion pass does not preserve dom frontier, which is required by loop-index-split. When the PM checks dom frontier for loop-index-split, it has already verified that lcssa is availalble. However, new dom frontier forces new loop pass manager, which does not have lcssa yet. The PM should recheck availability of required analysis passes in such cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54805 91177308-0d34-0410-b5e6-96231b3b80d8
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Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, 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 HTML documentation provided in docs/index.html for further assistance with LLVM.
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