forked from OSchip/llvm-project
c4866d29dd
Summary: Scalar evolution does not propagate the non-wrapping flags to values that are derived from a non-wrapping induction variable because the non-wrapping property could be flow-sensitive. This change is a first attempt to establish the non-wrapping property in some simple cases. The main idea is to look through the operations defining the pointer. As long as we arrive to a non-wrapping AddRec via a small chain of non-wrapping instruction, the pointer should not wrap either. I believe that this essentially is what Andy described in http://article.gmane.org/gmane.comp.compilers.llvm.cvs/220731 as the way forward. Reviewers: aschwaighofer, nadav, sanjoy, atrick Reviewed By: atrick Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10472 llvm-svn: 240798 |
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| llvm.spec.in | ||
README.txt
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're writing a package for LLVM, see docs/Packaging.rst for our suggestions.