forked from OSchip/llvm-project
225df71951
IV widening is sometimes a strictly harmful transform (some examples of this are shown in tests 11, 12 in widen-loop-comp.ll). One of the reasons of this is that sometimes SCEV fails to prove some facts after part of guards has been widened. Though each single such case looks like a bug that can be addressed, it seems that disabling of IV widening may be profitable in some cases. We want to have an option to do so. By default, existing behavior is preserved and IV widening is on. |
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LLVMBuild.txt | ||
README.txt | ||
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configure | ||
llvm.spec.in |
README.txt
The LLVM Compiler Infrastructure ================================ 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.