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In the case where dfsan provides a custom wrapper for a function, shadow parameters are added for each parameter of the function. These parameters are i16s. For targets which do not consider this a legal type, the lack of sign extension information would cause LLVM to generate anyexts around their usage with phi variables and calling convention logic. Address this by introducing zero exts for each shadow parameter. Reviewers: pcc, slthakur Differential Revision: https://reviews.llvm.org/D33349 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311087 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.